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912788
0906.5233
2009-06-29
Restricted Global Grammar Constraints
We investigate the global GRAMMAR constraint over restricted classes of context free grammars like deterministic and unambiguous context-free grammars. We show that detecting disentailment for the GRAMMAR constraint in these cases is as hard as parsing an unrestricted context free grammar.We also consider the class of ...
[ "cs.AI", "cs.FL" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g katsirelos_1", "name": "George Katsirelos", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s maneth_1", "name": "Sebastian Maneth", "publication_history": null, "h_index": null, "num_papers"...
null
15347089
0906.5278
2009-06-29
Spectrum of Fractal Interpolation Functions
In this paper we compute the Fourier spectrum of the Fractal Interpolation Functions FIFs as introduced by Michael Barnsley. We show that there is an analytical way to compute them. In this paper we attempt to solve the inverse problem of FIF by using the spectrum
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "n vasiloglou_1", "name": "Nikolaos Vasiloglou", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p maragos_1", "name": "Petros Maragos", "publication_history": null, "h_index": null, "num_papers...
null
28652749
0906.5172
2009-06-29
Performance of Magnetic Quantum Cellular Automata and Limitations due to Thermal Noise
Operation parameters of magnetic quantum cellular automata are evaluated for the purposes of reliable logic operation. The dynamics of the nanomagnets is simulated via the Landau-Lifshitz-Gilbert equations with a stochastic magnetic field corresponding to thermal fluctuations. It is found that in the macrospin approxim...
[ "cond-mat.mes-hall" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f spedalieri_1", "name": "Federico [\"M.\"] Spedalieri", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a jacob_2", "name": "Ajey [\"P.\"] Jacob", "publication_history": null, "h_index": null, ...
null
17748043
0906.5423
2009-06-30
Measuring spin of a supermassive black hole at the Galactic centre -- Implications for a unique spin
We determine the spin of a supermassive black hole in the context of discseismology by comparing newly detected quasi-periodic oscillations (QPOs) of radio emission in the Galactic centre, Sagittarius A* (Sgr A*), as well as infrared and X-ray emissions with those of the Galactic black holes. We find that the spin para...
[ "astro-ph.GA", "astro-ph.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1765649
0907.0017
2009-06-30
Global entrainment of transcriptional systems to periodic inputs
This paper addresses the problem of giving conditions for transcriptional systems to be globally entrained to external periodic inputs. By using contraction theory, a powerful tool from dynamical systems theory, it is shown that certain systems driven by external periodic signals have the property that all solutions co...
[ "q-bio.QM", "q-bio.MN" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
26479430
0906.5519
2009-06-30
Exact Algorithm for Sampling the 2D Ising Spin Glass
A sampling algorithm is presented that generates spin glass configurations of the 2D Edwards-Anderson Ising spin glass at finite temperature, with probabilities proportional to their Boltzmann weights. Such an algorithm overcomes the slow dynamics of direct simulation and can be used to study long-range correlation fun...
[ "cond-mat.dis-nn", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
20142677
0906.5508
2009-06-30
Chargino and Neutralino Separation with the ILD Experiment
One of the benchmark processes for the optimisation of the detector concepts proposed for the International Linear Collider is Chargino and Neutralino pair production in an mSugra scenario where Chargino-1 and Neutralino-2 are mass degenerate and decay into W+Neutralino-1 and Z+Neutralino-1, respectively. In this case ...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2800189
0906.5394
2009-06-30
Wireless Network Information Flow: A Deterministic Approach
In a wireless network with a single source and a single destination and an arbitrary number of relay nodes, what is the maximum rate of information flow achievable? We make progress on this long standing problem through a two-step approach. First we propose a deterministic channel model which captures the key wireless ...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "a avestimehr_1", "name": "Amir [\"Salman\"] Avestimehr", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s diggavi_1", "name": "Suhas [\"N.\"] Diggavi", "publication_history": null, "h_index": null...
null
16464273
0907.0019
2009-06-30
Simulating the Universe with MICE: The abundance of massive clusters
We introduce a new set of large N-body runs, the MICE simulations, that provide a unique combination of very large cosmological volumes with good mass resolution. They follow the gravitational evolution of ~ 8.5 billion particles (2048^3) in volumes covering up to 450 (Gpc/h)^3. Our main goal is to accurately model and...
[ "astro-ph.CO", "astro-ph.GA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15337583
0906.5614
2009-06-30
Exploring Portals to a Hidden Sector Through Fixed Targets
We discuss the sensitivity of neutrino experiments at the luminosity frontier to generic hidden sectors containing new (sub)-GeV neutral states. The weak interaction of these states with the Standard Model can be efficiently probed through all of the allowed renormalizable `portals' (in the Higgs, vector, and neutrino ...
[ "hep-ph", "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6040824
0906.5436
2009-06-30
Relative Density of the Random r-Factor Proximity Catch Digraph for Testing Spatial Patterns of Segregation and Association (Technical Report)
Statistical pattern classification methods based on data-random graphs were introduced recently. In this approach, a random directed graph is constructed from the data using the relative positions of the data points from various classes. Different random graphs result from different definitions of the proximity region ...
[ "math.ST", "math.PR", "stat.ME", "stat.TH" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e ceyhan_1", "name": "Elvan Ceyhan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c priebe_1", "name": "Carey [\"E.\"] Priebe", "publication_history": null, "h_index": null, "num_papers": nu...
null
14106253
0906.5606
2009-06-30
Fusion Frames: Existence and Construction
Fusion frame theory is an emerging mathematical theory that provides a natural framework for performing hierarchical data processing. A fusion frame is a frame-like collection of subspaces in a Hilbert space, thereby generalizing the concept of a frame for signal representation. In this paper, we study the existence an...
[ "math.FA", "math.RT" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "56441388", "num_citations": null } ]
[ { "author_id": "r calderbank_1", "name": "Robert Calderbank", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p casazza_1", "name": "Peter [\"G.\"] Casazza", "publication_history": null, "h_index": null, "num_...
null
55219971
0906.5605
2009-06-30
Spin-orbit misalignment in the HD80606 planetary system
We recently reported the photometric and spectroscopic detection of the primary transit of the 111-day-period, eccentric extra-solar planet HD80606 b, at Observatoire de Haute-Provence, France (Moutou et al. 2009). The whole egress of the primary transit and a section of its central part were observed, allowing the mea...
[ "astro-ph.EP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
26181243
0906.5499
2009-06-30
Transportation Distances on the Circle and Applications
This paper is devoted to the study of the Monge-Kantorovich theory of optimal mass transport and its applications, in the special case of one-dimensional and circular distributions. More precisely, we study the Monge-Kantorovich distances between discrete sets of points on the unit circle, in the case where the ground ...
[ "math.FA", "math.OC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j delon_1", "name": "Julie Delon", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j rabin_1", "name": "Julien Rabin", "publication_history": null, "h_index": null, "num_papers": null, "num...
null
18663216
0906.5581
2009-06-30
Strong Taylor approximation of stochastic differential equations and application to the L\'evy LIBOR model
In this article we develop a method for the strong approximation of stochastic differential equations (SDEs) driven by L\'evy processes or general semimartingales. The main ingredients of our method is the perturbation of the SDE and the Taylor expansion of the resulting parameterized curve. We apply this method to dev...
[ "math.PR", "q-fin.CP" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "a papapantoleon_1", "name": "Antonis Papapantoleon", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m siopacha_0", "name": "Maria Siopacha", "publication_history": null, "h_index": null, "num_...
null
14586432
0906.5520
2009-06-30
Constraining the orbit of the possible companion to Beta Pictoris: New deep imaging observations
We recently reported on the detection of a possible planetary-mass companion to Beta Pictoris at a projected separation of 8 AU from the star, using data taken in November 2003 with NaCo, the adaptive-optics system installed on the Very Large Telescope UT4. Eventhough no second epoch detection was available, there are ...
[ "astro-ph.EP", "astro-ph.IM", "astro-ph.SR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
62829270
0906.5350
2009-06-30
The Palomar Transient Factory: System Overview, Performance and First Results
The Palomar Transient Factory (PTF) is a fully-automated, wide-field survey aimed at a systematic exploration of the optical transient sky. The transient survey is performed using a new 8.1 square degree camera installed on the 48-inch Samuel Oschin telescope at Palomar Observatory; colors and light curves for detected...
[ "astro-ph.IM", "astro-ph.CO" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "16491915", "num_citations": null } ]
[ { "author_id": "n law_2", "name": "Nicholas [\"M.\"] Law", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s kulkarni_9", "name": "Shrinivas [\"R.\"] Kulkarni", "publication_history": null, "h_index": null, "n...
null
91829696
0906.5381
2009-06-30
Modulation and correlations lengths in systems with competing interactions
We examine correlation functions in the presence of competing long and short ranged interactions to find multiple correlation and modulation lengths. We calculate the ground state stripe width of an Ising ferromagnet, frustrated by an arbitrary long range interaction. In large $n$ systems, we demonstrate that for a sho...
[ "cond-mat.stat-mech", "cond-mat.str-el" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s chakrabarty_4", "name": "Saurish Chakrabarty", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "z nussinov_1", "name": "Zohar Nussinov", "publication_history": null, "h_index": null, "num_pape...
null
2086818
0907.0018
2009-07-01
A novel determination of the local dark matter density
We present a novel study on the problem of constructing mass models for the Milky Way, concentrating on features regarding the dark matter halo component. We have considered a variegated sample of dynamical observables for the Galaxy, including several results which have appeared recently, and studied a 7- or 8-dimensi...
[ "astro-ph.CO", "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17260475
0907.0151
2009-07-01
Holography from Conformal Field Theory
The locality of bulk physics at distances below the AdS length is one of the remarkable aspects of AdS/CFT duality, and one of the least tested. It requires that the AdS radius be large compared to the Planck length and the string length. In the CFT this implies a large-N expansion and a gap in the spectum of anomalous...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18985404
0907.0202
2009-07-01
Predictions of elliptic flow and nuclear modification factor from 200 GeV U + U collisions at RHIC
Predictions of elliptic flow ($v_2$) and nuclear modification factor ($R_{AA}$) are provided as a function of centrality in U + U collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV. Since the $^{238}$U nucleus is naturally deformed, one could adjust the properties of the fireball, density and duration of the hot and dense syst...
[ "nucl-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
29290046
0907.0236
2009-07-01
Designing quantum memories with embedded control: photonic circuits for autonomous quantum error correction
Quantum error correction (QEC) is fundamental for quantum information processing but entails a substantial overhead of classically-controlled quantum operations, which can be architecturally cumbersome to accommodate. Here we discuss a novel approach to designing elementary QEC memory cells, in which all control operat...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "8467224", "num_citations": null }, { "corpus_id": "16746419", "num_citations": null }, { "corpus_id": "16777", "num_citations": null }, { "corpus_id": "115166179", "num_citations": null }, { "corpus_id": "21846774", "num_citations": null } ]
[ { "author_id": "j kerckhoff_0", "name": "Joseph Kerckhoff", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h nurdin_1", "name": "Hendra [\"Ishwara\"] Nurdin", "publication_history": null, "h_index": null, "nu...
null
12777862
0907.0209
2009-07-01
{\it Ab initio} nuclear structure - the large sparse matrix eigenvalue problem
The structure and reactions of light nuclei represent fundamental and formidable challenges for microscopic theory based on realistic strong interaction potentials. Several {\it ab initio} methods have now emerged that provide nearly exact solutions for some nuclear properties. The {\it ab initio} no core shell model (...
[ "nucl-th" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j vary_1", "name": "James [\"P.\"] Vary", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p maris_1", "name": "Pieter Maris", "publication_history": null, "h_index": null, "num_papers": null, ...
null
119204908
0907.0195
2009-07-01
Dynamical Mean-Field Theory within the Full-Potential Methods: Electronic structure of Ce-115 materials
We implemented the charge self-consistent combination of Density Functional Theory and Dynamical Mean Field Theory (DMFT) in two full-potential methods, the Augmented Plane Wave and the Linear Muffin-Tin Orbital methods. We categorize the commonly used projection methods in terms of the causality of the resulting DMFT ...
[ "cond-mat.str-el" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119250419
0907.0500
2009-07-02
A universal Hamiltonian for the motion and the merging of Dirac cones in a two-dimensional crystal
We propose a simple Hamiltonian to describe the motion and the merging of Dirac points in the electronic spectrum of two-dimensional electrons. This merging is a topological transition which separates a semi-metallic phase with two Dirac cones from an insulating phase with a gap. We calculate the density of states and ...
[ "cond-mat.mes-hall" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14294285
0907.0396
2009-07-02
Graphical methods establishing nontriviality of state cycle Khovanov homology classes
We determine when certain state cycles represent nontrivial Khovanov homology classes by analyzing features of the state graph. Using this method, we are able to produce hyperbolic knots with arbitrarily many diagonals containing nontrivial state cycle homology classes. This gives lower bounds on the Khovanov width of ...
[ "math.GT" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "18975588", "num_citations": null }, { "corpus_id": "55880974", "num_citations": null }, { "corpus_id": "118867429", "num_citations": null }, { "corpus_id": "17540945", "num_citations": null } ]
[ { "author_id": "a elliott_2", "name": "Andrew Elliott", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
16868085
0907.0392
2009-07-02
Metallic properties of magnesium point contacts
We present an experimental and theoretical study of the conductance and stability of Mg atomic-sized contacts. Using Mechanically Controllable Break Junctions (MCBJ), we have observed that the room temperature conductance histograms exhibit a series of peaks, which suggests the existence of a shell effect. Its periodic...
[ "cond-mat.mes-hall" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "14085514", "num_citations": null }, { "corpus_id": "8877227", "num_citations": null } ]
[ { "author_id": "r smit_4", "name": "Roel [\"H.\",\"M.\"] Smit", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a mares_2", "name": "Ancuta [\"I.\"] Mares", "publication_history": null, "h_index": null, "num_p...
null
14552386
0907.0436
2009-07-02
Dualization of Signal Recovery Problems
In convex optimization, duality theory can sometimes lead to simpler solution methods than those resulting from direct primal analysis. In this paper, this principle is applied to a class of composite variational problems arising in particular in signal recovery. These problems are not easily amenable to solution by cu...
[ "math.OC", "math.FA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
698499
0907.0505
2009-07-02
Multi-User MISO Interference Channels with Single-User Detection: Optimality of Beamforming and the Achievable Rate Region
For a multi-user interference channel with multi-antenna transmitters and single-antenna receivers, by restricting each transmitter to Gaussian input and each receiver to a single-user detector, computing the largest achievable rate region amounts to solving a family of non-convex optimization problems. Recognizing the...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118682142
0907.0337
2009-07-02
Lyman Alpha Emitter Evolution in the Reionization Epoch
Combining cosmological SPH simulations with a previously developed Lyman Alpha production/transmission model and the Early Reionization Model (ERM, reionization ends at redshift z~7), we obtain Lyman Alpha and UV Luminosity Functions (LFs) for Lyman Alpha Emitters (LAEs) for redshifts between 5.7 and 7.6. Matching mode...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12131954
0907.0449
2009-07-02
Majority dynamics on trees and the dynamic cavity method
A voter sits on each vertex of an infinite tree of degree $k$, and has to decide between two alternative opinions. At each time step, each voter switches to the opinion of the majority of her neighbors. We analyze this majority process when opinions are initialized to independent and identically distributed random vari...
[ "math.PR", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1752288
0907.0305
2009-07-02
Improved approximation guarantees for weighted matching in the semi-streaming model
We study the maximum weight matching problem in the semi-streaming model, and improve on the currently best one-pass algorithm due to Zelke (Proc. of STACS2008, pages 669-680) by devising a deterministic approach whose performance guarantee is 4.91+epsilon. In addition, we study preemptive online algorithms, a sub-clas...
[ "cs.DS" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
346314
0907.0234
2009-07-02
Collisional Stripping and Disruption of Super-Earths
The final stage of planet formation is dominated by collisions between planetary embryos. The dynamics of this stage determine the orbital configuration and the mass and composition of planets in the system. In the solar system, late giant impacts have been proposed for Mercury, Earth, Mars, and Pluto. In the case of M...
[ "astro-ph.EP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17167225
0907.0706
2009-07-03
Asynchronous Variational Integration of Interaction Potentials for Contact Mechanics
Asynchronous Variational Integrators (AVIs) have demonstrated long-time good energy behavior. It was previously conjectured that this remarkable property is due to their geometric nature: they preserve a discrete multisymplectic form. Previous proofs of AVIs' multisymplecticity assume that the potentials are of an elas...
[ "math.NA", "math.DS" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e vouga_1", "name": "Etienne Vouga", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d harmon_1", "name": "David Harmon", "publication_history": null, "h_index": null, "num_papers": null, "...
null
8548129
0907.0514
2009-07-03
Spatio-temporal correlations can drastically change the response of a MAPK pathway
Multisite covalent modification of proteins is omnipresent in eukaryotic cells. A well-known example is the mitogen-activated protein kinase (MAPK) cascade, where in each layer of the cascade a protein is phosphorylated at two sites. It has long been known that the response of a MAPK pathway strongly depends on whether...
[ "q-bio.MN" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2398570
0907.0552
2009-07-03
Asymptotic Plateau Problem
This is a survey of old and recent results about the asymptotic Plateau problem. Our aim is to give a fairly complete picture of the field, and present the current situation.
[ "math.DG", "math.GT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "13383692", "num_citations": null }, { "corpus_id": "8282859", "num_citations": null }, { "corpus_id": "17049477", "num_citations": null } ]
[ { "author_id": "b coskunuzer_1", "name": "Baris Coskunuzer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
4878724
0907.0564
2009-07-03
Vortex nucleation in mesoscopic Bose superfluid and breaking of the parity symmetry
We analyze vortex nucleation in mezoscopic 2D Bose superfluid in a rotating trap. We explicitly include a weakly anisotropic stirring potential, breaking thus explicitly the axial symmetry. As the rotation frequency passes the critical value $\Omega_c$ the system undergoes an extra symmetry change/breaking. Well below ...
[ "cond-mat.quant-gas" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16258006
0907.0589
2009-07-03
Generalized Collective Inference with Symmetric Clique Potentials
Collective graphical models exploit inter-instance associative dependence to output more accurate labelings. However existing models support very limited kind of associativity which restricts accuracy gains. This paper makes two major contributions. First, we propose a general collective inference framework that biases...
[ "cs.AI" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r gupta_17", "name": "Rahul Gupta", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s sarawagi_1", "name": "Sunita Sarawagi", "publication_history": null, "h_index": null, "num_papers": null, ...
null
30450210
0907.0700
2009-07-03
Comparison of post-Newtonian templates for compact binary inspiral signals in gravitational-wave detectors
The two-body dynamics in general relativity has been solved perturbatively using the post-Newtonian (PN) approximation. The evolution of the orbital phase and the emitted gravitational radiation are now known to a rather high order up to O(v^8), v being the characteristic velocity of the binary. The orbital evolution, ...
[ "gr-qc" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
119221976
0907.0707
2009-07-03
New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
We present a general relativistic description of galaxy clustering in a FLRW universe. The observed redshift and position of galaxies are affected by the matter fluctuations and the gravity waves between the source galaxies and the observer, and the volume element constructed by using the observables differs from the p...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
4423574
0907.0708
2009-07-03
The Diversity of Type Ia Supernovae from Broken Symmetries
Type Ia supernovae result when carbon-oxygen white dwarfs in binary systems accrete mass from companion stars, reach a critical mass, and explode. The near uniformity of their light curves makes these supernovae good standard candles for measuring cosmic expansion, but a correction must be applied to account for the fa...
[ "astro-ph.HE", "astro-ph.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6257661
0907.0783
2009-07-04
Bayesian Multitask Learning with Latent Hierarchies
We learn multiple hypotheses for related tasks under a latent hierarchical relationship between tasks. We exploit the intuition that for domain adaptation, we wish to share classifier structure, but for multitask learning, we wish to share covariance structure. Our hierarchical model is seen to subsume several previous...
[ "cs.LG", "stat.ML" ]
null
[ "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "h daumé_1", "name": "Hal Daumé", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
704519
0907.0786
2009-07-04
Search-based Structured Prediction
We present Searn, an algorithm for integrating search and learning to solve complex structured prediction problems such as those that occur in natural language, speech, computational biology, and vision. Searn is a meta-algorithm that transforms these complex problems into simple classification problems to which any bi...
[ "cs.LG", "cs.CL" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "h daumé_1", "name": "Hal Daumé", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j langford_1", "name": "John Langford", "publication_history": null, "h_index": null, "num_papers": null, "n...
null
11522495
0907.0781
2009-07-04
Bayesian Agglomerative Clustering with Coalescents
We introduce a new Bayesian model for hierarchical clustering based on a prior over trees called Kingman's coalescent. We develop novel greedy and sequential Monte Carlo inferences which operate in a bottom-up agglomerative fashion. We show experimentally the superiority of our algorithms over others, and demonstrate o...
[ "stat.ML" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "11112994", "num_citations": null } ]
[ { "author_id": "y teh_1", "name": "Yee [\"Whye\"] Teh", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h daumé_1", "name": "Hal Daumé", "publication_history": null, "h_index": null, "num_papers": null, "n...
null
781
0907.0809
2009-07-04
Learning as Search Optimization: Approximate Large Margin Methods for Structured Prediction
Mappings to structured output spaces (strings, trees, partitions, etc.) are typically learned using extensions of classification algorithms to simple graphical structures (eg., linear chains) in which search and parameter estimation can be performed exactly. Unfortunately, in many complex problems, it is rare that exac...
[ "cs.LG", "cs.CL" ]
null
[ "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "h daumé_1", "name": "Hal Daumé", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d marcu_1", "name": "Daniel Marcu", "publication_history": null, "h_index": null, "num_papers": null, "num_c...
null
166504
0907.0759
2009-07-04
Bayesian inference of biochemical kinetic parameters using the linear noise approximation
Fluorescent and luminescent gene reporters allow us to dynamically quantify changes in molecular species concentration over time on the single cell level. The mathematical modeling of their interaction through multivariate dynamical models requires the development of effective statistical methods to calibrate such mode...
[ "q-bio.QM" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7600669
0907.0884
2009-07-05
Self-Improving Algorithms
We investigate ways in which an algorithm can improve its expected performance by fine-tuning itself automatically with respect to an unknown input distribution D. We assume here that D is of product type. More precisely, suppose that we need to process a sequence I_1, I_2, ... of inputs I = (x_1, x_2, ..., x_n) of som...
[ "cs.DS", "cs.CG" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "n ailon_1", "name": "Nir Ailon", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b chazelle_1", "name": "Bernard Chazelle", "publication_history": null, "h_index": null, "num_papers": null, ...
null
2879345
0907.0914
2009-07-05
A typical reconstruction limit of compressed sensing based on Lp-norm minimization
We consider the problem of reconstructing an $N$-dimensional continuous vector $\bx$ from $P$ constraints which are generated by its linear transformation under the assumption that the number of non-zero elements of $\bx$ is typically limited to $\rho N$ ($0\le \rho \le 1$). Problems of this type can be solved by minim...
[ "cs.IT", "cond-mat.dis-nn", "math.IT", "math.ST", "stat.TH" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "y kabashima_1", "name": "Yoshiyuki Kabashima", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t wadayama_1", "name": "Tadashi Wadayama", "publication_history": null, "h_index": null, "num_pape...
null
47333732
0907.1065
2009-07-06
Design of an Optimal Bayesian Incentive Compatible Broadcast Protocol for Ad hoc Networks with Rational Nodes
Nodes in an ad hoc wireless network incur certain costs for forwarding packets since packet forwarding consumes the resources of the nodes. If the nodes are rational, free packet forwarding by the nodes cannot be taken for granted and incentive based protocols are required to stimulate cooperation among the nodes. Exis...
[ "cs.GT", "cs.AI", "cs.DC", "cs.NI" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r narayanam_1", "name": "Ramasuri Narayanam", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y narahari_1", "name": "Y. Narahari", "publication_history": null, "h_index": null, "num_papers": n...
null
15146501
0907.1099
2009-07-06
Multi-User Diversity vs. Accurate Channel State Information in MIMO Downlink Channels
In a multiple transmit antenna, single antenna per receiver downlink channel with limited channel state feedback, we consider the following question: given a constraint on the total system-wide feedback load, is it preferable to get low-rate/coarse channel feedback from a large number of receivers or high-rate/high-qua...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118600313
0907.0919
2009-07-06
Investigating the critical properties of beyond-QCD theories using Monte Carlo Renormalization Group matching
Monte Carlo Renormalization Group (MCRG) methods were designed to study the non-perturbative phase structure and critical behavior of statistical systems and quantum field theories. I adopt the 2-lattice matching method used extensively in the 1980's and show how it can be used to predict the existence of non-perturbat...
[ "hep-lat" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8946216
0907.1061
2009-07-06
Boolean Compressed Sensing and Noisy Group Testing
The fundamental task of group testing is to recover a small distinguished subset of items from a large population while efficiently reducing the total number of tests (measurements). The key contribution of this paper is in adopting a new information-theoretic perspective on group testing problems. We formulate the gro...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18352657
0907.1013
2009-07-06
Visualizing Topics with Multi-Word Expressions
We describe a new method for visualizing topics, the distributions over terms that are automatically extracted from large text corpora using latent variable models. Our method finds significant $n$-grams related to a topic, which are then used to help understand and interpret the underlying distribution. Compared with ...
[ "stat.ML" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "d blei_1", "name": "David [\"M.\"] Blei", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j lafferty_1", "name": "John [\"D.\"] Lafferty", "publication_history": null, "h_index": null, "num_pap...
null
119261113
0907.1109
2009-07-06
Experimental criteria for steering and the Einstein-Podolsky-Rosen paradox
We formally link the concept of steering (a concept created by Schrodinger but only recently formalised by Wiseman, Jones and Doherty [Phys. Rev. Lett. 98, 140402 (2007)] and the criteria for demonstrations of Einstein-Podolsky-Rosen (EPR) paradox introduced by Reid [Phys. Rev. A, 40, 913 (1989)]. We develop a general ...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11938834
0907.0944
2009-07-06
Spread spectrum for imaging techniques in radio interferometry
We consider the probe of astrophysical signals through radio interferometers with small field of view and baselines with non-negligible and constant component in the pointing direction. In this context, the visibilities measured essentially identify with a noisy and incomplete Fourier coverage of the product of the pla...
[ "astro-ph.IM", "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
322974
0907.0958
2009-07-06
On the number of perfect matchings in random lifts
Let G be a fixed connected multigraph with no loops. A random n-lift of G is obtained by replacing each vertex of G by a set of n vertices (where these sets are pairwise disjoint) and replacing each edge by a randomly chosen perfect matching between the n-sets corresponding to the endpoints of the edge. Let X_G be the ...
[ "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7754274
0907.1020
2009-07-06
Convergence and Convergence Rate of Stochastic Gradient Search in the Case of Multiple and Non-Isolated Extrema
The asymptotic behavior of stochastic gradient algorithms is studied. Relying on results from differential geometry (Lojasiewicz gradient inequality), the single limit-point convergence of the algorithm iterates is demonstrated and relatively tight bounds on the convergence rate are derived. In sharp contrast to the ex...
[ "math.OC", "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10666662
0907.0733
2009-07-06
Unified approach to Quantum and Classical Dualities
We show how classical and quantum dualities, as well as duality relations that appear only in a sector of certain theories ("emergent dualities"), can be unveiled, and systematically established. Our method relies on the use of morphisms of the "bond algebra" of a quantum Hamiltonian. Dualities are characterized as uni...
[ "cond-mat.stat-mech", "cond-mat.str-el", "hep-th", "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e cobanera_1", "name": "Emilio Cobanera", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g ortíz_1", "name": "Gerardo [\"Rodríguez\"] Ortíz", "publication_history": null, "h_index": null, "num...
null
1836955
0907.1182
2009-07-07
Catastrophic cascade of failures in interdependent networks
Many systems, ranging from engineering to medical to societal, can only be properly characterized by multiple interdependent networks whose normal functioning depends on one another. Failure of a fraction of nodes in one network may lead to a failure in another network. This in turn may cause further malfunction of add...
[ "physics.data-an", "cond-mat.stat-mech", "cs.SI", "physics.comp-ph", "physics.soc-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6708023
0907.1274
2009-07-07
Analysis of a conservation law modeling a highly re-entrant manufacturing system
This article studies a hyperbolic conservation law that models a highly re-entrant manufacturing system as encountered in semi-conductor production. Characteristic features are the nonlocal character of the velocity and that the influx and outflux constitute the control and output signal, respectively. We prove the exi...
[ "math.OC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7661354
0907.1255
2009-07-07
From Spectrum Pooling to Space Pooling: Opportunistic Interference Alignment in MIMO Cognitive Networks
We describe a non-cooperative interference alignment (IA) technique which allows an opportunistic multiple input multiple output (MIMO) link (secondary) to harmlessly coexist with another MIMO link (primary) in the same frequency band. Assuming perfect channel knowledge at the primary receiver and transmitter, capacity...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "s perlaza_1", "name": "Samir [\"Medina\"] Perlaza", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n fawaz_1", "name": "Nadia Fawaz", "publication_history": null, "h_index": null, "num_papers"...
null
16373982
0907.1298
2009-07-07
A parametric integer programming algorithm for bilevel mixed integer programs
We consider discrete bilevel optimization problems where the follower solves an integer program with a fixed number of variables. Using recent results in parametric integer programming, we present polynomial time algorithms for pure and mixed integer bilevel problems. For the mixed integer case where the leader's varia...
[ "math.OC" ]
null
[ "target.key_reference" ]
null
null
null
17191248
0907.1254
2009-07-07
Adaptive Multiple Importance Sampling
The Adaptive Multiple Importance Sampling (AMIS) algorithm is aimed at an optimal recycling of past simulations in an iterated importance sampling scheme. The difference with earlier adaptive importance sampling implementations like Population Monte Carlo is that the importance weights of all simulated values, past as ...
[ "stat.CO", "stat.AP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14091317
0907.1379
2009-07-08
Improved bounds on the supremum of autoconvolutions
We give a slight improvement of the best known lower bound for the supremum of autoconvolutions of nonnegative functions supported in a compact interval. Also, by means of explicit examples we disprove a long standing natural conjecture of Schinzel and Schmidt concerning the extremal function for such autoconvolutions.
[ "math.CA", "math.NT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16552249
0907.1389
2009-07-08
Debris disc stirring by secular perturbations from giant planets
Detectable debris discs are thought to require dynamical excitation (`stirring'), so that planetesimal collisions release large quantities of dust. We investigate the effects of the secular perturbations of a planet, which may lie at a significant distance from the planetesimal disc, to see if these perturbations can s...
[ "astro-ph.EP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11899265
0907.1365
2009-07-08
Artificial magnetism and left handed media from dielectric rings and rods
It is shown that artificial magnetism with relatively large frequency bandwidth can be obtained from periodic arrangements of dielectric rings. Combined with dielectric rods, dielectric rings can provide 3D isotropic left-handed metamaterials being an advantageous alternative to metallic split ring resonators and/or me...
[ "physics.optics", "physics.class-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l jelínek_1", "name": "Lukás Jelínek", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r marqués_1", "name": "Ricardo Marqués", "publication_history": null, "h_index": null, "num_papers": null,...
null
4648456
1209.5853
2009-07-08
Efficient Natural Evolution Strategies
Efficient Natural Evolution Strategies (eNES) is a novel alternative to conventional evolutionary algorithms, using the natural gradient to adapt the mutation distribution. Unlike previous methods based on natural gradients, eNES uses a fast algorithm to calculate the inverse of the exact Fisher information matrix, thu...
[ "cs.AI" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "y sun_195", "name": "Yi Sun", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d wierstra_1", "name": "Daan Wierstra", "publication_history": null, "h_index": null, "num_papers": null, "num_...
null
16253574
0907.1387
2009-07-09
Numerical Weil-Petersson metrics on moduli spaces of Calabi-Yau manifolds
We introduce a simple and very fast algorithm that computes Weil-Petersson metrics on moduli spaces of polarized Calabi-Yau manifolds. Also, by using Donaldson's quantization link between the infinite and finite dimensional G.I.T quotients that describe moduli spaces of varieties, we define a natural sequence of Kaehle...
[ "math.DG", "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15112330
0907.1659
2009-07-09
Cosmological Constraints from the Clustering of the Sloan Digital Sky Survey DR7 Luminous Red Galaxies
We present the power spectrum of the reconstructed halo density field derived from a sample of Luminous Red Galaxies (LRGs) from the Sloan Digital Sky Survey Seventh Data Release (DR7). The halo power spectrum has a direct connection to the underlying dark matter power for k <= 0.2 h/Mpc, well into the quasi-linear reg...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5752151
0907.1724
2009-07-09
Inapproximability of the Tutte polynomial of a planar graph
The Tutte polynomial of a graph G is a two-variable polynomial T(G;x,y) that encodes many interesting properties of the graph. We study the complexity of the following problem, for rationals x and y: given as input a planar graph G, determine T(G;x,y). Vertigan completely mapped the complexity of exactly computing the ...
[ "cs.CC", "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
116921433
0907.1693
2009-07-09
Spin-lattice coupling in frustrated antiferromagnets
We review the mechanism of spin-lattice coupling in relieving the geometrical frustration of pyrochlore antiferromagnets, in particular spinel oxides. The tetrahedral unit, which is the building block of the pyrochlore lattice, undergoes a spin-driven Jahn-Teller instability when lattice degrees of freedom are coupled ...
[ "cond-mat.str-el" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "o tchernyshyov_1", "name": "Oleg Tchernyshyov", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g chern_1", "name": "Gia-Wei Chern", "publication_history": null, "h_index": null, "num_papers": ...
null
118677285
0907.1691
2009-07-09
Boundary Terms and Junction Conditions for the DGP Pi-Lagrangian and Galileon
In the decoupling limit of DGP, Pi describes the brane-bending degree of freedom. It obeys second order equations of motion, yet it is governed by a higher derivative Lagrangian. We show that, analogously to the Einstein-Hilbert action for GR, the Pi-Lagrangian requires Gibbons-Hawking-York type boundary terms to rende...
[ "hep-th", "gr-qc" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e dyer_2", "name": "Ethan Dyer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "k hinterbichler_1", "name": "Kurt Hinterbichler", "publication_history": null, "h_index": null, "num_papers": nu...
null
11329034
0907.1737
2009-07-09
Throughput Improvement and Its Tradeoff with The Queuing Delay in the Diamond Relay Networks
Diamond relay channel model, as a basic transmission model, has recently been attracting considerable attention in wireless Ad Hoc networks. Node cooperation and opportunistic scheduling scheme are two important techniques to improve the performance in wireless scenarios. In the paper we consider such a problem how to ...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "q wang_117", "name": "Qing Wang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p fan_1", "name": "Pingyi Fan", "publication_history": null, "h_index": null, "num_papers": null, "num_cita...
null
115174701
0907.1471
2009-07-09
A thermodynamic approach to two-variable Ruelle and Selberg zeta functions via the Farey map
In this paper we consider the transfer operator approach to the Ruelle and Selberg zeta functions associated to continued fractions transformations and the geodesic flow on the full modular surface. We extend the results by Ruelle and Mayer to two-variable zeta functions, $\zeta(q,z)$ and $Z(q,z)$. The $q$ variable pla...
[ "math.DS", "math-ph", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
28980949
0907.1436
2009-07-09
Attaining mean square boundedness of a marginally stable noisy linear system with a bounded control input
We construct control policies that ensure bounded variance of a noisy marginally stable linear system in closed-loop. It is assumed that the noise sequence is a mutually independent sequence of random vectors, enters the dynamics affinely, and has bounded fourth moment. The magnitude of the control is required to be of...
[ "math.OC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "8546005", "num_citations": null } ]
[ { "author_id": "f ramponi_1", "name": "Federico [\"Alessandro\"] Ramponi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d chatterjee_4", "name": "Debasish Chatterjee", "publication_history": null, "h_index": nu...
null
14491229
0907.1708
2009-07-10
Graphical algorithms and threshold error rates for the 2d colour code
Recent work on fault-tolerant quantum computation making use of topological error correction shows great potential, with the 2d surface code possessing a threshold error rate approaching 1% (NJoP 9:199, 2007), (arXiv:0905.0531). However, the 2d surface code requires the use of a complex state distillation procedure to ...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9350615
0907.1660
2009-07-10
Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample
The spectroscopic Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) galaxy sample represents the final set of galaxies observed using the original SDSS target selection criteria. We analyse the clustering of galaxies within this sample, including both the Luminous Red Galaxy (LRG) and Main samples, and also include ...
[ "astro-ph.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2477325
0907.1907
2009-07-10
Reduced order models for control of fluids using the Eigensystem Realization Algorithm
In feedback flow control, one of the challenges is to develop mathematical models that describe the fluid physics relevant to the task at hand, while neglecting irrelevant details of the flow in order to remain computationally tractable. A number of techniques are presently used to develop such reduced-order models, su...
[ "math.OC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119278963
0907.1887
2009-07-10
Fast, high fidelity information transmission through spin chain quantum wires
Spin chains have been proposed as quantum wires for information transfer in solid state quantum architectures. We show that huge gains in both transfer speed and fidelity are possible using a minimalist control approach that relies only a single, local, on-off switch actuator. Effective switching time sequences can be ...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13956624
0907.1715
2009-07-10
Zeroth Poisson homology of symmetric powers of isolated quasihomogeneous surface singularities
Let X be a surface with an isolated singularity at the origin, given by the equation Q(x,y,z)=0, where Q is a weighted-homogeneous polynomial. In particular, this includes the Kleinian surfaces X = C^2/G for G < SL(2,C) finite. Let Y be the n-th symmetric power of X. We compute the zeroth Poisson homology of Y, as a gr...
[ "math.SG", "math.AG", "math.QA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5360764
0907.1815
2009-07-10
Frustratingly Easy Domain Adaptation
We describe an approach to domain adaptation that is appropriate exactly in the case when one has enough ``target'' data to do slightly better than just using only ``source'' data. Our approach is incredibly simple, easy to implement as a preprocessing step (10 lines of Perl!) and outperforms state-of-the-art approache...
[ "cs.LG", "cs.CL" ]
null
[ "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "h daumé_1", "name": "Hal Daumé", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
17571137
0907.1846
2009-07-10
Holographic stress tensor for non-relativistic theories
We discuss the calculation of the field theory stress tensor from the dual geometry for two recent proposals for gravity duals of non-relativistic conformal field theories. The first of these has a Schrodinger symmetry including Galilean boosts, while the second has just an anisotropic scale invariance (the Lifshitz ca...
[ "hep-th" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "119233190", "num_citations": null }, { "corpus_id": "14521865", "num_citations": null }, { "corpus_id": "3124457", "num_citations": null }, { "corpus_id": "14174042", "num_citations": null } ]
[ { "author_id": "s ross_2", "name": "Simon [\"F\"] Ross", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o saremi_1", "name": "Omid Saremi", "publication_history": null, "h_index": null, "num_papers": null, ...
null
6241932
0907.1814
2009-07-10
Bayesian Query-Focused Summarization
We present BayeSum (for ``Bayesian summarization''), a model for sentence extraction in query-focused summarization. BayeSum leverages the common case in which multiple documents are relevant to a single query. Using these documents as reinforcement for query terms, BayeSum is not afflicted by the paucity of informatio...
[ "cs.CL", "cs.IR", "cs.LG" ]
null
[ "target.key_reference" ]
[]
[ { "author_id": "h daumé_1", "name": "Hal Daumé", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d marcu_1", "name": "Daniel Marcu", "publication_history": null, "h_index": null, "num_papers": null, "num_c...
null
8884532
0907.1788
2009-07-10
FNT-based Reed-Solomon Erasure Codes
This paper presents a new construction of Maximum-Distance Separable (MDS) Reed-Solomon erasure codes based on Fermat Number Transform (FNT). Thanks to FNT, these codes support practical coding and decoding algorithms with complexity O(n log n), where n is the number of symbols of a codeword. An open-source implementat...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2317411
0907.1812
2009-07-10
Fast search for Dirichlet process mixture models
Dirichlet process (DP) mixture models provide a flexible Bayesian framework for density estimation. Unfortunately, their flexibility comes at a cost: inference in DP mixture models is computationally expensive, even when conjugate distributions are used. In the common case when one seeks only a maximum a posteriori ass...
[ "cs.LG" ]
null
[ "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "h daumé_1", "name": "Hal Daumé", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
115165354
0907.1750
2009-07-10
A Description of All Self-Adjoint Extensions of the Laplacian and Krein-Type Resolvent Formulas on Nonsmooth Domains
This paper has two main goals. First, we are concerned with the classification of self-adjoint extensions of the Laplacian $-\Delta\big|_{C^\infty_0(\Omega)}$ in $L^2(\Omega; d^n x)$. Here, the domain $\Omega$ belongs to a subclass of bounded Lipschitz domains (which we term quasi-convex domains), which contain all con...
[ "math.AP", "math.SP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119268820
0907.1764
2009-07-10
Efficient compression of quantum information
We propose a scheme for an exact efficient transformation of a tensor product state of many identically prepared qubits into a state of a logarithmically small number of qubits. Using a quadratic number of elementary quantum gates we transform N identically prepared qubits into a state, which is nontrivial only on the ...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
19467060
0907.1695
2009-07-10
Explicit determination of mean first-passage time for random walks on deterministic uniform recursive trees
The determination of mean first-passage time (MFPT) for random walks in networks is a theoretical challenge, and is a topic of considerable recent interest within the physics community. In this paper, according to the known connections between MFPT, effective resistance, and the eigenvalues of graph Laplacian, we first...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "z zhang_150", "name": "Zhongzhi Zhang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y qi_17", "name": "Yi Qi", "publication_history": null, "h_index": null, "num_papers": null, "num_cit...
null
17606263
0907.1922
2009-07-10
Supersymmetry discovery potential of the LHC at $\sqrt{s}=$10 and 14 TeV without and with missing $E_T$
We examine the supersymmetry (SUSY) reach of the CERN LHC operating at $\sqrt{s}=10$ and 14 TeV within the framework of the minimal supergravity model. We improve upon previous reach projections by incorporating updated background calculations including a variety of $2\to n$ Standard Model (SM) processes. We show that ...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "h baer_1", "name": "Howard Baer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v barger_1", "name": "Vernon Barger", "publication_history": null, "h_index": null, "num_papers": null, "nu...
null
108289840
0907.1876
2009-07-10
Analytic approximations to the phase diagram of the Jaynes-Cummings-Hubbard model with application to ion chains
We discuss analytic approximations to the ground state phase diagram of the homogeneous Jaynes-Cummings-Hubbard (JCH) Hamiltonian with general short-range hopping. The JCH model describes e.g. radial phonon excitations of a linear chain of ions coupled to an external laser field tuned to the red motional sideband with ...
[ "cond-mat.other", "cond-mat.quant-gas" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8629627
0907.1739
2009-07-10
Efficient Signal-Time Coding Design and its Application in Wireless Gaussian Relay Networks
Signal-time coding, which combines the traditional encoding/modulation mode in the signal domain with signal pulse phase modulation in the time domain, was proposed to improve the information flow rate in relay networks. In this paper, we mainly focus on the efficient signal-time coding design. We first derive an expli...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "p fan_1", "name": "Pingyi Fan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p sun_27", "name": "Pei Sun", "publication_history": null, "h_index": null, "num_papers": null, "num_citation...
null
14450706
0907.1956
2009-07-11
Zero-error feedback capacity via dynamic programming
In this paper, we study the zero-error capacity for finite state channels with feedback when channel state information is known to both the transmitter and the receiver. We prove that the zero-error capacity in this case can be obtained through the solution of a dynamic programming problem. Each iteration of the dynami...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l zhao_19", "name": "Lei Zhao", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h permuter_1", "name": "Haim [\"H.\"] Permuter", "publication_history": null, "h_index": null, "num_papers": null...
null
1671637
0907.1965
2009-07-11
Law of the Minimum Paradoxes
The "Law of the Minimum" states that growth is controlled by the scarcest resource (limiting factor). This concept was originally applied to plant or crop growth (Justus von Liebig, 1840) and quantitatively supported by many experiments. Some generalizations based on more complicated "dose-response" curves were propose...
[ "q-bio.PE" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "2753508", "num_citations": null } ]
[ { "author_id": "a gorban_1", "name": "Alexander [\"N\"] Gorban", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "l pokidysheva_1", "name": "Lyudmila [\"I.\"] Pokidysheva", "publication_history": null, "h_index": n...
null
11548507
0907.1977
2009-07-11
Nonlinear Quantum Evolution Equations to Model Irreversible Adiabatic Relaxation with Maximal Entropy Production and Other Nonunitary Processes
We first discuss the geometrical construction and the main mathematical features of the maximum-entropy-production/steepest-entropy-ascent nonlinear evolution equation proposed long ago by this author in the framework of a fully quantum theory of irreversibility and thermodynamics for a single isolated or adiabatic par...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18811481
0907.2049
2009-07-12
Strategyproof Approximation Mechanisms for Location on Networks
We consider the problem of locating a facility on a network, represented by a graph. A set of strategic agents have different ideal locations for the facility; the cost of an agent is the distance between its ideal location and the facility. A mechanism maps the locations reported by the agents to the location of the f...
[ "cs.GT", "cs.MA" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "n alon_2", "name": "Noga Alon", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m feldman_1", "name": "Michal Feldman", "publication_history": null, "h_index": null, "num_papers": null, "nu...
null
5549727
0907.2083
2009-07-12
Simultaneously Sparse Solutions to Linear Inverse Problems with Multiple System Matrices and a Single Observation Vector
A linear inverse problem is proposed that requires the determination of multiple unknown signal vectors. Each unknown vector passes through a different system matrix and the results are added to yield a single observation vector. Given the matrices and lone observation, the objective is to find a simultaneously sparse ...
[ "cs.NA" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "a zelinski_0", "name": "Adam [\"C.\"] Zelinski", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v goyal_3", "name": "Vivek [\"K\"] Goyal", "publication_history": null, "h_index": null, "num_pa...
null
17595734
0907.2021
2009-07-12
Berry Phase Effects on Electronic Properties
Ever since its discovery, the Berry phase has permeated through all branches of physics. Over the last three decades, it was gradually realized that the Berry phase of the electronic wave function can have a profound effect on material properties and is responsible for a spectrum of phenomena, such as ferroelectricity,...
[ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2080613
0907.2072
2009-07-12
SMT-Based Bounded Model Checking for Embedded ANSI-C Software
Propositional bounded model checking has been applied successfully to verify embedded software but is limited by the increasing propositional formula size and the loss of structure during the translation. These limitations can be reduced by encoding word-level information in theories richer than propositional logic and...
[ "cs.SE" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
7667365
0907.2076
2009-07-12
The Piranha algebraic manipulator
In this paper we present a specialised algebraic manipulation package devoted to Celestial Mechanics. The system, called Piranha, is built on top of a generic and extensible framework, which allows to treat efficiently and in a unified way the algebraic structures most commonly encountered in Celestial Mechanics (such ...
[ "cs.SC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "f biscani_1", "name": "Francesco Biscani", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
14948517
0907.2227
2009-07-13
Search for muon neutrinos from Gamma-Ray Bursts with the IceCube neutrino telescope
We present the results of searches for high-energy muon neutrinos from 41 gamma-ray bursts (GRBs) in the northern sky with the IceCube detector in its 22-string configuration active in 2007/2008. The searches cover both the prompt and a possible precursor emission as well as a model-independent, wide time window of -1 ...
[ "astro-ph.HE" ]
null
[ "target.author.publication_history.key_reference" ]
[ { "corpus_id": "54003617", "num_citations": null }, { "corpus_id": "20787078", "num_citations": null } ]
null
null