corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
1926604 | 0809.2792 | 2008-09-16 | Predicting Abnormal Returns From News Using Text Classification | We show how text from news articles can be used to predict intraday price movements of financial assets using support vector machines. Multiple kernel learning is used to combine equity returns with text as predictive features to increase classification performance and we develop an analytic center cutting plane method... | [
"cs.LG",
"cs.AI"
] | null | [
"target.author.publication_history"
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{
"author_id": "r luss_1",
"name": "Ronny Luss",
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{
"author_id": "a d'aspremont_2",
"name": "Alexandre d'Aspremont",
"publication_history": null,
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7846626 | 0809.2754 | 2008-09-16 | Algorithmic information theory | We introduce algorithmic information theory, also known as the theory of Kolmogorov complexity. We explain the main concepts of this quantitative approach to defining `information'. We discuss the extent to which Kolmogorov's and Shannon's information theory have a common purpose, and where they are fundamentally diffe... | [
"cs.IT",
"cs.LG",
"math.IT",
"math.ST",
"stat.TH"
] | null | [
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] | null | null | null |
21941395 | 0809.2813 | 2008-09-16 | Search for Large extra spatial dimensions in the dielectron and diphoton channels in $\bm{p\bar{p}}$ collisions at $\bm{\sqrt{s}=}$1.96 TeV | We report on a search for large extra spatial dimensions in the dielectron and diphoton channels using a data sample of 1.05 \invfb of \ppb collisions at a center-of-mass energy of 1.96 TeV collected by the D0 detector at the Fermilab Tevatron Collider. The invariant mass spectrum of the data agrees well with the predi... | [
"hep-ex"
] | null | [
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{
"author_id": "v abazov_1",
"name": "Victor [\"Mukhamedovich\"] Abazov",
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{
"author_id": "b abbott_2",
"name": "B. Abbott",
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44059965 | 0809.2705 | 2008-09-16 | Preparing ground states of quantum many-body systems on a quantum computer | Preparing the ground state of a system of interacting classical particles is an NP-hard problem. Thus, there is in general no better algorithm to solve this problem than exhaustively going through all N configurations of the system to determine the one with lowest energy, requiring a running time proportional to N. A q... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14340617 | 0809.2794 | 2008-09-16 | Constraining the Scatter in the Mass-Richness Relation of maxBCG Clusters With Weak Lensing and X-ray Data | We measure the logarithmic scatter in mass at fixed richness for clusters in the maxBCG cluster catalog, an optically selected cluster sample drawn from SDSS imaging data. Our measurement is achieved by demanding consistency between available weak lensing and X-ray measurements of the maxBCG clusters, and the X-ray lum... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
153417 | 0809.2708 | 2008-09-16 | Heavy ion event generator HYDJET++ (HYDrodynamics plus JETs) | HYDJET++ is a Monte-Carlo event generator for simulation of relativistic heavy ion AA collisions considered as a superposition of the soft, hydro-type state and the hard state resulting from multi-parton fragmentation. This model is the development and continuation of HYDJET event generator (Lokhtin & Snigirev, 2006, E... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16310201 | 0809.2635 | 2008-09-16 | Complex Replica Zeros of $\pm J$ Ising Spin Glass at Zero Temperature | Zeros of the $n$th moment of the partition function $[Z^n]$ are investigated in a vanishing temperature limit $\beta \to \infty$, $n \to 0$ keeping $y=\beta n \sim O(1)$. In this limit, the moment parameterized by $y$ characterizes the distribution of the ground-state energy. We numerically investigate the zeros for $\... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech"
] | null | [
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] | [] | [
{
"author_id": "t obuchi_1",
"name": "Tomoyuki Obuchi",
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},
{
"author_id": "y kabashima_1",
"name": "Yoshiyuki Kabashima",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
118659997 | 0809.2728 | 2008-09-16 | New distance and depth estimates from observations of eclipsing binaries in the SMC | A sample of 33 eclipsing binaries observed in a field of the SMC with FLAMES@VLT is presented. The radial velocity curves obtained, together with existing OGLE light curves, allowed the determination of all stellar and orbital parameters of these binary systems. The mean distance modulus of the observed part of the SMC... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18402297 | 0809.2858 | 2008-09-16 | Polynomial kernels for 3-leaf power graph modification problems | A graph G=(V,E) is a 3-leaf power iff there exists a tree T whose leaves are V and such that (u,v) is an edge iff u and v are at distance at most 3 in T. The 3-leaf power graph edge modification problems, i.e. edition (also known as the closest 3-leaf power), completion and edge-deletion, are FTP when parameterized by ... | [
"cs.DM",
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
318206 | 0809.2931 | 2008-09-17 | An Efficient Algorithm for Cooperative Spectrum Sensing in Cognitive Radio Networks | We consider the problem of Spectrum Sensing in Cognitive Radio Systems. We have developed a distributed algorithm that the Secondary users can run to sense the channel cooperatively. It is based on sequential detection algorithms which optimally use the past observations. We use the algorithm on secondary users with en... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17724255 | 0809.2883 | 2008-09-17 | A Simple Model for Solar Isorotational Contours | The solar convective zone, or SCZ, is nearly adiabatic and marginally convectively unstable. But the SCZ is also in a state of differential rotation, and its dynamical stability properties are those of a weakly magnetized gas. This renders it far more prone to rapidly growing rotational baroclinic instabilities than a ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7484599 | 0809.2816 | 2008-09-17 | Monopoles in CP(N-1) model via the state-operator correspondence | One of the earliest proposed phase transitions beyond the Landau-Ginzburg-Wilson paradigm is the quantum critical point separating an antiferromagnet and a valence-bond-solid on a square lattice. The low energy description of this transition is believed to be given by the 2+1 dimensional CP(1) model -- a theory of boso... | [
"cond-mat.str-el"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5387958 | 0809.2998 | 2008-09-17 | Observation of Pulsed Gamma-rays Above 25 GeV from the Crab Pulsar with MAGIC | One fundamental question about pulsars concerns the mechanism of their pulsed electromagnetic emission. Measuring the high-end region of a pulsar's spectrum would shed light on this question. By developing a new electronic trigger, we lowered the threshold of the Major Atmospheric gamma-ray Imaging Cherenkov (MAGIC) te... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1231300 | 0809.2932 | 2008-09-17 | Stability Selection | Estimation of structure, such as in variable selection, graphical modelling or cluster analysis is notoriously difficult, especially for high-dimensional data. We introduce stability selection. It is based on subsampling in combination with (high-dimensional) selection algorithms. As such, the method is extremely gener... | [
"stat.ME"
] | null | [
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"author_id": "n meinshausen_1",
"name": "Nicolai Meinshausen",
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{
"author_id": "p buehlmann_0",
"name": "Peter [\"H.\"] Buehlmann",
"publication_history": null,
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... | null |
1015431 | 0809.2979 | 2008-09-17 | Coloring Simple Hypergraphs | Fix an integer $k \ge 3$. A $k$-uniform hypergraph is simple if every two edges share at most one vertex. We prove that there is a constant $c$ depending only on $k$ such that every simple $k$-uniform hypergraph $H$ with maximum degree $\D$ has chromatic number satisfying $$\chi(H) <c (\frac{\D}{\log \D})^{\frac{1}{k-1... | [
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3893543 | 0809.3168 | 2008-09-18 | Stochastic analysis of Bernoulli processes | These notes survey some aspects of discrete-time chaotic calculus and its applications, based on the chaos representation property for i.i.d. sequences of random variables. The topics covered include the Clark formula and predictable representation, anticipating calculus, covariance identities and functional inequaliti... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
682971 | 0809.3083 | 2008-09-18 | Supervised Dictionary Learning | It is now well established that sparse signal models are well suited to restoration tasks and can effectively be learned from audio, image, and video data. Recent research has been aimed at learning discriminative sparse models instead of purely reconstructive ones. This paper proposes a new step in that direction, wit... | [
"cs.CV"
] | null | [
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{
"author_id": "j mairal_1",
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},
{
"author_id": "f bach_1",
"name": "Francis [\"R.\"] Bach",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
9079834 | 0809.3092 | 2008-09-18 | Bandlet Image Estimation with Model Selection | To estimate geometrically regular images in the white noise model and obtain an adaptive near asymptotic minimaxity result, we consider a model selection based bandlet estimator. This bandlet estimator combines the best basis selection behaviour of the model selection and the approximation properties of the bandlet dic... | [
"math.ST",
"stat.TH"
] | null | [
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{
"author_id": "c dossal_1",
"name": "Charles Dossal",
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},
{
"author_id": "e pennec_1",
"name": "Erwan [\"Le\"] Pennec",
"publication_history": null,
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8161529 | 0809.3259 | 2008-09-18 | All solvable extensions of a class of nilpotent Lie algebras of dimension n and degree of nilpotency n-1 | We construct all solvable Lie algebras with a specific n-dimensional nilradical n_(n,2) (of degree of nilpotency (n-1) and with an (n-2)-dimensional maximal Abelian ideal). We find that for given n such a solvable algebra is unique up to isomorphisms. Using the method of moving frames we construct a basis for the Casim... | [
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14150936 | 0809.3077 | 2008-09-18 | Luminous Blue Variable Stars In The Two Extremely Metal-Deficient Blue Compact Dwarf Galaxies DDO 68 and PHL 293B | We present photometric and spectroscopic observations of two luminous blue variable (LBV) stars in two extremely metal-deficient blue compact dwarf (BCD) galaxies, DDO 68 with 12+logO/H = 7.15 and PHL 293B with 12+logO/H = 7.72. These two BCDs are the lowest-metallicity galaxies where LBV stars have been detected, allo... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9151077 | 0809.3232 | 2008-09-18 | A Local Clustering Algorithm for Massive Graphs and its Application to Nearly-Linear Time Graph Partitioning | We study the design of local algorithms for massive graphs. A local algorithm is one that finds a solution containing or near a given vertex without looking at the whole graph. We present a local clustering algorithm. Our algorithm finds a good cluster--a subset of vertices whose internal connections are significantly ... | [
"cs.DS",
"cs.DM"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
14296400 | 0809.3035 | 2008-09-18 | Interference Alignment for Line-of-Sight Channels | The fully connected K-user interference channel is studied in a multipath environment with bandwidth W. We show that when each link consists of D physical paths, the total spectral efficiency can grow {\it linearly} with K. This result holds not merely in the limit of large transmit power P, but for any fixed P, and is... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16658501 | 0809.2997 | 2008-09-18 | Microlensing Event MOA-2007-BLG-400: Exhuming the Buried Signature of a Cool, Jovian-Mass Planet | We report the detection of the cool, Jovian-mass planet MOA-2007-BLG-400Lb. The planet was detected in a high-magnification microlensing event (with peak magnification A_max = 628) in which the primary lens transited the source, resulting in a dramatic smoothing of the peak of the event. The angular extent of the regio... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15118237 | 0809.3051 | 2008-09-18 | Quantum dimer models | These lecture notes aim to provide a self-contained, pedagogical introduction to the physics of local constraints, fractionalisation and topological liquids organised around the Rokhsar-Kivelson quantum dimer model. Topics and phenomena covered include emergent photons, SU(2) invariant spin liquids, valence-bond solids... | [
"cond-mat.str-el"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14959813 | 0809.3187 | 2008-09-18 | A Control Variate Approach for Improving Efficiency of Ensemble Monte Carlo | In this paper we present a new approach to control variates for improving computational efficiency of Ensemble Monte Carlo. We present the approach using simulation of paths of a time-dependent nonlinear stochastic equation. The core idea is to extract information at one or more nominal model parameters and use this in... | [
"cs.CE",
"cond-mat.stat-mech",
"stat.CO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t borogovac_1",
"name": "Tarik Borogovac",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "f alexander_1",
"name": "Francis [\"J.\"] Alexander",
"publication_history": null,
"h_index": null,
"n... | null |
16005162 | 0809.3412 | 2008-09-19 | Gravitational waves from resolvable massive black hole binary systems and observations with Pulsar Timing Arrays | Massive black holes are key components of the assembly and evolution of cosmic structures and a number of surveys are currently on-going or planned to probe the demographics of these objects and to gain insight into the relevant physical processes. Pulsar Timing Arrays (PTAs) currently provide the only means to observe... | [
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119117048 | 0809.3388 | 2008-09-19 | Shear Viscosity and Chern-Simons Diffusion Rate from Hyperbolic Horizons | We calculate the shear viscosity and anomalous baryon number violation rate in quantum field theories at finite temperature having gravity duals with hyperbolic horizons. We find the explicit dependence of these quantities on the temperature. We show that the ratio of shear viscosity to entropy density is below $1/(4\p... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g koutsoumbas_1",
"name": "George Koutsoumbas",
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},
{
"author_id": "e papantonopoulos_1",
"name": "Eleftherios Papantonopoulos",
"publication_history": null,
"h_index": ... | null |
14029880 | 0809.3332 | 2008-09-19 | Inversion of noisy Radon transform by SVD based needlet | A linear method for inverting noisy observations of the Radon transform is developed based on decomposition systems (needlets) with rapidly decaying elements induced by the Radon transform SVD basis. Upper bounds of the risk of the estimator are established in $L^p$ ($1\le p\le \infty$) norms for functions with Besov s... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g kerkyacharian_1",
"name": "Gerard Kerkyacharian",
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},
{
"author_id": "g kyriazis_1",
"name": "George Kyriazis",
"publication_history": null,
"h_index": null,
"num_... | null |
665165 | 0809.3273 | 2008-09-19 | Direct and Reverse Secret-Key Capacities of a Quantum Channel | We define the direct and reverse secret-key capacities of a memoryless quantum channel as the optimal rates that entanglement-based quantum key distribution protocols can reach by using a single forward classical communication (direct reconciliation) or a single feedback classical communication (reverse reconciliation)... | [
"quant-ph",
"cs.CR",
"cs.IT",
"math.IT",
"physics.optics"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15634881 | 0809.3275 | 2008-09-19 | Local information transfer as a spatiotemporal filter for complex systems | We present a measure of local information transfer, derived from an existing averaged information-theoretical measure, namely transfer entropy. Local transfer entropy is used to produce profiles of the information transfer into each spatiotemporal point in a complex system. These spatiotemporal profiles are useful not ... | [
"nlin.CG",
"nlin.AO",
"nlin.PS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7523917 | 0809.3351 | 2008-09-19 | RISE: a fast-readout imager for exoplanet transit timing | By the precise timing of the low amplitude (0.005 - 0.02 magnitude) transits of exoplanets around their parent star it should be possible to infer the presence of other planetary bodies in the system down to Earth-like masses. We describe the design and construction of RISE, a fast-readout frame transfer camera for the... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17258599 | 0809.3437 | 2008-09-19 | MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics | We present further development and the first public release of our multimodal nested sampling algorithm, called MultiNest. This Bayesian inference tool calculates the evidence, with an associated error estimate, and produces posterior samples from distributions that may contain multiple modes and pronounced (curving) d... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15813901 | 0809.3405 | 2008-09-19 | Analysis of Fourier transform valuation formulas and applications | The aim of this article is to provide a systematic analysis of the conditions such that Fourier transform valuation formulas are valid in a general framework; i.e. when the option has an arbitrary payoff function and depends on the path of the asset price process. An interplay between the conditions on the payoff funct... | [
"q-fin.PR",
"math.PR"
] | null | [
"target.author.publication_history",
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{
"corpus_id": "14872467",
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] | [
{
"author_id": "e eberlein_1",
"name": "Ernst Eberlein",
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},
{
"author_id": "k glau_1",
"name": "Kathrin Glau",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
15246034 | 0809.3379 | 2008-09-19 | Sample Size Effects on the Transport Characteristics of Mesoscopic Graphite Samples | In this work we investigated correlations between the internal microstructure and sample size (lateral as well as thickness) of mesoscopic, tens of nanometer thick graphite (multigraphene) samples and the temperature $(T)$ and field $(B)$ dependence of their electrical resistivity $\rho(T,B)$. Low energy transmission e... | [
"cond-mat.mtrl-sci",
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
195345970 | 1311.5810 | 2008-09-20 | Deciding $k$CFA is complete for EXPTIME | We give an exact characterization of the computational complexity of the $k$CFA hierarchy. For any $k > 0$, we prove that the control flow decision problem is complete for deterministic exponential time. This theorem validates empirical observations that such control flow analysis is intractable. It also provides more ... | [
"cs.PL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1026408 | 0809.3533 | 2008-09-20 | Turduckening black holes: an analytical and computational study | We provide a detailed analysis of several aspects of the turduckening technique for evolving black holes. At the analytical level we study the constraint propagation for a general family of BSSN-type formulation of Einstein's field equations and identify under what conditions the turducken procedure is rigorously justi... | [
"gr-qc"
] | null | [
"target.author.publication_history"
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] | [
{
"author_id": "d brown_9",
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},
{
"author_id": "p diener_1",
"name": "Peter Diener",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
118619935 | 0809.3515 | 2008-09-20 | Effect of magnetic state on the $\gamma -\alpha$ transition in iron: First-principle calculations of the Bain transformation path | Energetics of the fcc ($\gamma$) - bcc ($\alpha$) lattice transformation by the Bain tetragonal deformation is calculated for both magnetically ordered and paramagnetic (disordered local moment) states of iron. The first-principle computational results manifest a relevance of the magnetic order in a scenario of the $\g... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1888644 | 0809.3554 | 2008-09-21 | The Approximate Capacity of the Many-to-One and One-to-Many Gaussian Interference Channels | Recently, Etkin, Tse, and Wang found the capacity region of the two-user Gaussian interference channel to within one bit/s/Hz. A natural goal is to apply this approach to the Gaussian interference channel with an arbitrary number of users. We make progress towards this goal by finding the capacity region of the many-to... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
19010867 | 0809.3813 | 2008-09-22 | Unitary designs and codes | A unitary design is a collection of unitary matrices that approximate the entire unitary group, much like a spherical design approximates the entire unit sphere. In this paper, we use irreducible representations of the unitary group to find a general lower bound on the size of a unitary t-design in U(d), for any d and ... | [
"math.CO",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
527058 | 0809.3768 | 2008-09-22 | A note on stability conditions for planar switched systems | This paper is concerned with the stability problem for the planar linear switched system $\dot x(t)=u(t)A_1x(t)+(1-u(t))A_2x(t)$, where the real matrices $A_1,A_2\in \R^{2\times 2}$ are Hurwitz and $u(\cdot) [0,\infty[\to\{0,1\}$ is a measurable function. We give coordinate-invariant necessary and sufficient conditions... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2165705 | 0809.3650 | 2008-09-22 | Hierarchical Bayesian sparse image reconstruction with application to MRFM | This paper presents a hierarchical Bayesian model to reconstruct sparse images when the observations are obtained from linear transformations and corrupted by an additive white Gaussian noise. Our hierarchical Bayes model is well suited to such naturally sparse image applications as it seamlessly accounts for propertie... | [
"physics.data-an",
"cs.IT",
"math.IT",
"stat.ME"
] | null | [
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] | [] | [
{
"author_id": "n dobigeon_1",
"name": "Nicolas Dobigeon",
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},
{
"author_id": "a hero_1",
"name": "Alfred [\"O.\"] Hero",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
13890857 | 0809.3789 | 2008-09-22 | Quasars Are Not Light-Bulbs: Testing Models of Quasar Lifetimes with the Observed Eddington Ratio Distribution | We use the observed distribution of Eddington ratios as a function of supermassive black hole (BH) mass to constrain models of AGN lifetimes and lightcurves. Given the observed AGN luminosity function, a model for AGN lifetimes (time above a given luminosity) translates directly to a predicted Eddington ratio distribut... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10485555 | 0809.3790 | 2008-09-22 | Intrinsic Ellipticity Correlation of SDSS Luminous Red Galaxies and Misalignment with their Host Dark Matter Halos | We investigate the orientation correlation of giant elliptical galaxies by measuring the intrinsic ellipticity correlation function of 83,773 luminous red galaxies (LRGs) at redshifts 0.16 -- 0.47 from the Sloan Digital Sky Survey. We have accurately determined the correlation up to 30 $h^{-1}$Mpc. Luminosity dependenc... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16341169 | 0809.4033 | 2008-09-23 | Boundary Terms, Variational Principles and Higher Derivative Modified Gravity | We discuss the criteria that must be satisfied by a well-posed variational principle. We clarify the role of Gibbons-Hawking-York type boundary terms in the actions of higher derivative models of gravity, such as F(R) gravity, and argue that the correct boundary terms are the naive ones obtained though the corresponden... | [
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "16631993",
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}
] | [
{
"author_id": "e dyer_2",
"name": "Ethan Dyer",
"publication_history": null,
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},
{
"author_id": "k hinterbichler_1",
"name": "Kurt Hinterbichler",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
14221305 | 0809.4022 | 2008-09-23 | Exploration of Effective Potential Landscapes using Coarse Reverse Integration | We describe a reverse integration approach for the exploration of low-dimensional effective potential landscapes. Coarse reverse integration initialized on a ring of coarse states enables efficient "navigation" on the landscape terrain: escape from local effective potential wells, detection of saddle points, and identi... | [
"physics.chem-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t frewen_1",
"name": "Thomas [\"A.\"] Frewen",
"publication_history": null,
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},
{
"author_id": "g hummer_1",
"name": "Gerhard Hummer",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
15274776 | 0809.3956 | 2008-09-23 | Inclusive high Q2 cross sections and QCD and EW fits at HERA | The latest measurements of the cross sections for neutral and charged current deep inelastic scattering in e+/-p collisions at HERA with longitudinally polarised lepton beams are presented. The measured cross sections are compared with the predictions of the Standard Model. Next-to-leading-order QCD analyses of HERA da... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a tapper_2",
"name": "Alexander [\"D.\"] Tapper",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
9317197 | 0809.3791 | 2008-09-23 | Searching for modified growth patterns with tomographic surveys | In alternative theories of gravity, designed to produce cosmic acceleration at the current epoch, the growth of large scale structure can be modified. We study the potential of upcoming and future tomographic surveys such as DES and LSST, with the aid of CMB and supernovae data, to detect departures from the growth of ... | [
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g zhao_32",
"name": "Gong-Bo Zhao",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l pogosian_1",
"name": "Levon Pogosian",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
2910263 | 0809.4019 | 2008-09-23 | Throughput Scaling of Wireless Networks With Random Connections | This work studies the throughput scaling laws of ad hoc wireless networks in the limit of a large number of nodes. A random connections model is assumed in which the channel connections between the nodes are drawn independently from a common distribution. Transmitting nodes are subject to an on-off strategy, and receiv... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "60778",
"num_citations": null
}
] | [
{
"author_id": "s cui_5",
"name": "Shengshan Cui",
"publication_history": null,
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},
{
"author_id": "a haimovich_2",
"name": "Alexander [\"M.\"] Haimovich",
"publication_history": null,
"h_index": null,
"num_pap... | null |
7466255 | 0809.3886 | 2008-09-23 | Soft processes at high energy without soft Pomeron: a QCD motivated model | In this paper we develop a QCD motivated model for both hard and soft interactions at high energies. In this model the long distance behavior of the scattering amplitude is determined by the approximate solution to the non-linear evolution equation for parton system in the saturation domain. All phenomenological parame... | [
"hep-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a kormilitzin_1",
"name": "Andrey Kormilitzin",
"publication_history": null,
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},
{
"author_id": "e levin_1",
"name": "Eugene Levin",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
2590620 | 0809.3908 | 2008-09-23 | Optimal Energy Management Policies for Energy Harvesting Sensor Nodes | We study a sensor node with an energy harvesting source. The generated energy can be stored in a buffer. The sensor node periodically senses a random field and generates a packet. These packets are stored in a queue and transmitted using the energy available at that time. We obtain energy management policies that are t... | [
"cs.NI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2931 | 0809.4017 | 2008-09-23 | Termination Criteria for Solving Concurrent Safety and Reachability Games | We consider concurrent games played on graphs. At every round of a game, each player simultaneously and independently selects a move; the moves jointly determine the transition to a successor state. Two basic objectives are the safety objective to stay forever in a given set of states, and its dual, the reachability ob... | [
"cs.GT",
"cs.LO"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "k chatterjee_3",
"name": "Krishnendu Chatterjee",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l alfaro_1",
"name": "Luca [\"de\"] Alfaro",
"publication_history": null,
"h_index": null,
"num... | null |
16775847 | 0809.4243 | 2008-09-24 | Evidence of Shock-Driven Turbulence in the Solar Chromosphere | We study the acoustic properties of the solar chromosphere in the high-frequency regime using a time sequence of velocity measurements in the chromospheric Ca II 854.2 nm line taken with the Interferometric Bidimensional Spectrometer (IBIS). We concentrate on quiet-Sun behavior, apply Fourier analysis, and characterize... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17718774 | 0809.4135 | 2008-09-24 | A Dynamical Classification of the Cosmic Web | A dynamical classification of the cosmic web is proposed. The large scale environment is classified into four web types: voids, sheets, filaments and knots. The classification is based on the evaluation of the deformation tensor, i.e. the Hessian of the gravitational potential, on a grid. The classification is based on... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8612246 | 0809.4326 | 2008-09-24 | Algorithms for Game Metrics | Simulation and bisimulation metrics for stochastic systems provide a quantitative generalization of the classical simulation and bisimulation relations. These metrics capture the similarity of states with respect to quantitative specifications written in the quantitative {\mu}-calculus and related probabilistic logics.... | [
"cs.GT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k chatterjee_3",
"name": "Krishnendu Chatterjee",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l alfaro_1",
"name": "Luca [\"de\"] Alfaro",
"publication_history": null,
"h_index": null,
"num... | null |
115163184 | 0809.4089 | 2008-09-24 | On base station localization for state estimation over lossy networks | We consider a state estimation problem where observations are made by multiple sensors. These observations are communicated over a lossy wireless network to a central base station that computes estimates via a Kalman filter. The goal is to determine the optimal location of the base station under a certain class of pack... | [
"math.OC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "u topcu_1",
"name": "Ufuk Topcu",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "k hsu_5",
"name": "Kenneth Hsu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_cit... | null |
2403203 | 0809.4178 | 2008-09-24 | Non-linear regression models for Approximate Bayesian Computation | Approximate Bayesian inference on the basis of summary statistics is well-suited to complex problems for which the likelihood is either mathematically or computationally intractable. However the methods that use rejection suffer from the curse of dimensionality when the number of summary statistics is increased. Here w... | [
"stat.CO",
"stat.ML"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2300579 | 0809.4166 | 2008-09-24 | A Subaru Pencil-beam Search for m_R~27 Trans-neptunian bodies | We present the results of an archival search for Trans-neptunian objects (TNOs) in an ecliptic field observed with Subaru in 2002. The depth of the search allowed us to find 20 new TNOs with magnitudes between R=24 and 27. We fit a double power law model to the data; the most likely values for the bright and faint powe... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11428802 | 0809.4079 | 2008-09-24 | Sparse image reconstruction for molecular imaging | The application that motivates this paper is molecular imaging at the atomic level. When discretized at sub-atomic distances, the volume is inherently sparse. Noiseless measurements from an imaging technology can be modeled by convolution of the image with the system point spread function (psf). Such is the case with m... | [
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9716014 | 0809.4058 | 2008-09-24 | Target Localization Accuracy Gain in MIMO Radar Based Systems | This paper presents an analysis of target localization accuracy, attainable by the use of MIMO (Multiple-Input Multiple-Output) radar systems, configured with multiple transmit and receive sensors, widely distributed over a given area. The Cramer-Rao lower bound (CRLB) for target localization accuracy is developed for ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2656145 | 0809.4012 | 2008-09-24 | Properties of the Youngest Protostars in Perseus, Serpens, and Ophiuchus | We present an unbiased census of deeply embedded protostars in Perseus, Serpens, and Ophiuchus, assembled by combining large-scale 1.1 mm Bolocam continuum and Spitzer Legacy surveys. We identify protostellar candidates based on their mid-infrared properties, correlate their positions with 1.1 mm core positions, and co... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9428274 | 0809.4045 | 2008-09-24 | Nonlinear properties of split-ring resonators | In this letter, the properties of split-ring resonators (SRRs) loaded with high-Q capacitors and nonlinear varactors are theoretically analyzed and experimentally measured. We demonstrate that the resonance frequency $f_m$ of the nonlinear SRRs can be tuned by increasing the incident power. $f_m$ moves to lower and hig... | [
"cond-mat.mtrl-sci"
] | null | [
"target.key_reference"
] | null | null | null |
14634978 | 0809.4316 | 2008-09-24 | A Layered Lattice Coding Scheme for a Class of Three User Gaussian Interference Channels | The paper studies a class of three user Gaussian interference channels. A new layered lattice coding scheme is introduced as a transmission strategy. The use of lattice codes allows for an "alignment" of the interference observed at each receiver. The layered lattice coding is shown to achieve more than one degree of f... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "18791697",
"num_citations": null
}
] | [
{
"author_id": "s sridharan_6",
"name": "Sriram Sridharan",
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"num_papers": null,
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},
{
"author_id": "a jafarian_2",
"name": "Amin Jafarian",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
32427793 | 0809.4068 | 2008-09-24 | First order phase transition in the anisotropic quantum orbital compass model | We investigate the anisotropic quantum orbital compass model on an infinite square lattice by means of the infinite projected entangled-pair state algorithm. For varying values of the $J_x$ and $J_z$ coupling constants of the model, we approximate the ground state and evaluate quantities such as its expected energy and... | [
"cond-mat.str-el"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r orús_1",
"name": "Román Orús",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "a doherty_1",
"name": "Andrew [\"C.\"] Doherty",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
7607286 | 0809.4501 | 2008-09-25 | Audio Classification from Time-Frequency Texture | Time-frequency representations of audio signals often resemble texture images. This paper derives a simple audio classification algorithm based on treating sound spectrograms as texture images. The algorithm is inspired by an earlier visual classification scheme particularly efficient at classifying textures. While sol... | [
"cs.CV",
"cs.SD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7686522 | 0809.4272 | 2008-09-25 | Conformal Nonlinear Fluid Dynamics from Gravity in Arbitrary Dimensions | We generalize recent work to construct a map from the conformal Navier Stokes equations with holographically determined transport coefficients, in d spacetime dimensions, to the set of asymptotically locally AdS_{d+1} long wavelength solutions of Einstein's equations with a negative cosmological constant, for all d>2. ... | [
"hep-th",
"gr-qc",
"physics.flu-dyn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
54828113 | 0809.4455 | 2008-09-25 | Momentum dependence of the superconducting gap in Ba$_{1-x}$K$_{x}$Fe$_2$As$_2$ | The precise momentum dependence of the superconducting gap in the iron-arsenide superconductor with Tc = 32K (BKFA) was determined from angle-resolved photoemission spectroscopy (ARPES) via fitting the distribution of the quasiparticle density to a model. The model incorporates finite lifetime and experimental resoluti... | [
"cond-mat.supr-con",
"cond-mat.str-el"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18053146 | 0809.4349 | 2008-09-25 | Convergence to stable laws for a class of multidimensional stochastic recursions | We consider a Markov chain $\{X_n\}_{n=0}^\8$ on $\R^d$ defined by the stochastic recursion $X_{n}=M_n X_{n-1}+Q_n$, where $(Q_n,M_n)$ are i.i.d. random variables taking values in the affine group $H=\R^d\rtimes {\rm GL}(\R^d)$. Assume that $M_n$ takes values in the similarity group of $\R^d$, and the Markov chain has ... | [
"math.PR"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "14916413",
"num_citations": null
}
] | [
{
"author_id": "d buraczewski_1",
"name": "Dariusz Buraczewski",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "e damek_1",
"name": "Ewa Damek",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
15993370 | 0809.4384 | 2008-09-25 | Bogomol'nyi Bounds for Gravitational Cosmic Strings | We present a new method for finding lower bounds on the energy of topological cosmic string solutions in gravitational field theories. This new method produces bounds that are valid over the entire space of solutions, unlike the traditional approach, where the bounds obtained are only valid for cylindrically symmetric ... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a davis_9",
"name": "A. [\"C.\"] Davis",
"publication_history": null,
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},
{
"author_id": "s rajamanoharan_1",
"name": "Senthooran Rajamanoharan",
"publication_history": null,
"h_index": null,
"n... | null |
2942861 | 0809.4403 | 2008-09-25 | Introduction to dissipation and decoherence in quantum systems | These lecture notes address an audience of physicists or mathematicians who have been exposed to a first course in quantum mechanics. We start with a brief discussion of the general "system-bath" paradigm of quantum dissipative systems, analyze in some detail the simplest example of "pure dephasing" of a two-level syst... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14390867 | 0809.4342 | 2008-09-25 | Towards a More Accurate Carrier Sensing Model for CSMA Wireless Networks | This work calls into question a substantial body of past work on CSMA wireless networks. In the majority of studies on CSMA wireless networks, a contention graph is used to model the carrier sensing relationships (CS) among links. This is a 0-1 model in which two links can either sense each other completely or not. In ... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "2630404",
"num_citations": null
}
] | [
{
"author_id": "c kai_1",
"name": "Caihong Kai",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s liew_1",
"name": "Soung [\"Chang\"] Liew",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
15440253 | 0809.4698 | 2008-09-26 | Central limit theorem for linear eigenvalue statistics of random matrices with independent entries | We consider $n\times n$ real symmetric and Hermitian Wigner random matrices $n^{-1/2}W$ with independent (modulo symmetry condition) entries and the (null) sample covariance matrices $n^{-1}X^*X$ with independent entries of $m\times n$ matrix $X$. Assuming first that the 4th cumulant (excess) $\kappa_4$ of entries of $... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
118996935 | 0809.4719 | 2008-09-26 | Early SUSY discovery at LHC via sparticle cascade decays to same-sign and multimuon states | In the very early stages of LHC running, uncertainties in detector performance will lead to large ambiguities in jet, electron and photon energy measurements, along with inferred missing transverse energy. However, muon detection should be quite straightforward, with the added benefit that muons can be reliably detecte... | [
"hep-ph",
"hep-ex"
] | 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": "a lessa_1",
"name": "André Lessa",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_c... | null |
12361412 | 0809.4586 | 2008-09-26 | Bow wave from ultra-intense electromagnetic pulses in plasmas | We show a new effect of the bow wave excitation by an intense short laser pulse propagating in underdense plasma. Due to spreading of the laser pulse energy in transverse direction, the bow wave causes a large-scale transverse modulation of the electron density. This can significantly increase the electric potential of... | [
"physics.plasm-ph",
"physics.comp-ph",
"physics.flu-dyn",
"physics.space-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t esirkepov_1",
"name": "Timur Zh. Esirkepov",
"publication_history": null,
"h_index": null,
"num_papers": null,
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},
{
"author_id": "y kato_2",
"name": "Yoshiaki Kato",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
7121018 | 0809.4582 | 2008-09-26 | Achieving compositionality of the stable model semantics for Smodels programs | In this paper, a Gaifman-Shapiro-style module architecture is tailored to the case of Smodels programs under the stable model semantics. The composition of Smodels program modules is suitably limited by module conditions which ensure the compatibility of the module system with stable models. Hence the semantics of an e... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
4375506 | 0809.4658 | 2008-09-26 | Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models | We study the magnetic interactions in Mott-Hubbard systems with partially filled $t_{2g}$-levels and with strong spin-orbit coupling. The latter entangles the spin and orbital spaces, and leads to a rich variety of the low energy Hamiltonians that extrapolate from the Heisenberg to a quantum compass model depending on ... | [
"cond-mat.str-el"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17316138 | 0809.4615 | 2008-09-26 | Correlation, hierarchies, and networks in financial markets | We discuss some methods to quantitatively investigate the properties of correlation matrices. Correlation matrices play an important role in portfolio optimization and in several other quantitative descriptions of asset price dynamics in financial markets. Specifically, we discuss how to define and obtain hierarchical ... | [
"q-fin.ST",
"physics.data-an",
"physics.soc-ph",
"q-fin.PM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14434457 | 0809.4684 | 2008-09-26 | Cold nuclear matter effects on J/psi production: intrinsic and extrinsic transverse momentum effects | Cold nuclear matter effects on J/psi production in proton-nucleus and nucleus-nucleus collisions are evaluated taking into account the specific J/psi production kinematics at the partonic level, the shadowing of the initial parton distributions and the absorption in the nuclear matter. We consider two different parton ... | [
"hep-ph",
"hep-ex",
"nucl-ex",
"nucl-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "e ferreiro_1",
"name": "Elena [\"Gonzalez\"] Ferreiro",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "f fleuret_2",
"name": "François Fleuret",
"publication_history": null,
"h_index": null,
"... | null |
62894956 | 0809.4636 | 2008-09-26 | Extrasolar planets and brown dwarfs around A-F type stars VI. High precision RV survey of early type dwarfs with HARPS | (Abridged) Aims: Systematic surveys to search for exoplanets have been mostly dedicated to solar-type stars sofar. We developed in 2004 a method to extend such searches to earlier A-F type dwarfs and started spectroscopic surveys to search for planets and quantify the detection limit achievable when taking into account... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16906522 | 0809.4627 | 2008-09-26 | Solving the 100 Swiss Francs Problem | Sturmfels offered 100 Swiss Francs in 2005 to a conjecture, which deals with a special case of the maximum likelihood estimation for a latent class model. This paper confirms the conjecture positively. | [
"stat.CO",
"math.AG",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15896585 | 0809.4803 | 2008-09-27 | Reinforced communication and social navigation generate groups in model networks | To investigate the role of information flow in group formation, we introduce a model of communication and social navigation. We let agents gather information in an idealized network society, and demonstrate that heterogeneous groups can evolve without presuming that individuals have different interests. In our scenario... | [
"physics.soc-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m rosvall_1",
"name": "Martin Rosvall",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "k sneppen_1",
"name": "Kim Sneppen",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
16166784 | 0911.5392 | 2008-09-27 | The q-exponential family in statistical physics | The Boltzmann-Gibbs probability distribution, seen as a statistical model, belongs to the exponential family. Recently, the latter concept has been generalized. The q-exponential family has been shown to be relevant for the statistical description of small isolated systems. Two main applications are reviewed: 1. The di... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
115169727 | 0809.4777 | 2008-09-27 | Destabilization of long-wavelength Love and Stoneley waves in slow sliding | Love waves are dispersive interfacial waves that are a mode of response for anti-plane motions of an elastic layer bonded to an elastic half-space. Similarly, Stoneley waves are interfacial waves in bonded contact of dissimilar elastic half-spaces, when the displacements are in the plane of the solids. It is shown that... | [
"math-ph",
"cond-mat.mtrl-sci",
"math.MP",
"physics.geo-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15796042 | 0809.4807 | 2008-09-27 | Secure Wireless Communications via Cooperation | The feasibility of physical-layer-based security approaches for wireless communications in the presence of one or more eavesdroppers is hampered by channel conditions. In this paper, cooperation is investigated as an approach to overcome this problem and improve the performance of secure communications. In particular, ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7418561 | 0809.4781 | 2008-09-27 | On contingent claims pricing in incomplete markets: A risk sharing approach | In an incomplete market setting, we consider two financial agents, who wish to price and trade a non-replicable contingent claim. Assuming that the agents are utility maximizers, we propose a transaction price which is a result of the minimization of a convex combination of their utility differences. We call this price... | [
"q-fin.CP",
"math.OC",
"math.PR",
"q-fin.TR"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m anthropelos_1",
"name": "Michail Anthropelos",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "n frangos_1",
"name": "Nikolaos [\"E.\"] Frangos",
"publication_history": null,
"h_index": null,
... | null |
40050 | 0809.4985 | 2008-09-29 | On the Influence of Carrier Frequency Offset and Sampling Frequency Offset in MIMO-OFDM Systems for Future Digital TV | This paper investigates the impact of carrier frequency offset (CFO) and sampling frequency offset (SFO) on the performance of different MIMO-OFDM schemes with high spectral efficiency for next generation of terrestrial digital TV. We analyze particularly orthogonal Alamouti scheme, and non-orthogonal (NO) schemes like... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y nasser_1",
"name": "Youssef Nasser",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j hélard_1",
"name": "Jean-François Hélard",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
14554501 | 0809.4909 | 2008-09-29 | Spectral conditions for positive maps | We provide a partial classification of positive linear maps in matrix algebras which is based on a family of spectral conditions. This construction generalizes celebrated Choi example of a map which is positive but not completely positive. It is shown how the spectral conditions enable one to construct linear maps on t... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11775276 | 0809.4989 | 2008-09-29 | Bit Error Rate Prediction of Coded MIMO-OFDM Systems | Bit error rate (BER) prediction over channel realisations has emerged as an active research area. In this paper, we give analytical signal to interference and noise ratio (SINR) evaluation of MIMO-OFDM systems using an iterative receiver. Using this analytical SINR expression, we propose an accurate BER prediction meth... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y nasser_1",
"name": "Youssef Nasser",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j hélard_1",
"name": "Jean-François Hélard",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
6339065 | 0809.5024 | 2008-09-29 | A globally convergent matricial algorithm for multivariate spectral estimation | In this paper, we first describe a matricial Newton-type algorithm designed to solve the multivariable spectrum approximation problem. We then prove its global convergence. Finally, we apply this approximation procedure to multivariate spectral estimation, and test its effectiveness through simulation. Simulation shows... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6425357 | 0809.5008 | 2008-09-29 | Multi-Antenna Communication in Ad Hoc Networks: Achieving MIMO Gains with SIMO Transmission | The benefit of multi-antenna receivers is investigated in wireless ad hoc networks, and the main finding is that network throughput can be made to scale linearly with the number of receive antennas nR even if each transmitting node uses only a single antenna. This is in contrast to a large body of prior work in single-... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6437160 | 0809.5016 | 2008-09-29 | Robustness of MIMO-OFDM Schemes for Future Digital TV to Carrier Frequency Offset | This paper investigates the impact of carrier frequency offset (CFO) on the performance of different MIMO-OFDM schemes with high spectral efficiency for next generation of terrestrial digital TV. We show that all studied MIMO-OFDM schemes are sensitive to CFO when it is greater than 1% of inter-carrier spacing. We show... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y nasser_1",
"name": "Youssef Nasser",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j hélard_1",
"name": "Jean-François Hélard",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
23336691 | 0809.4906 | 2008-09-29 | Dynamic entanglement in oscillating molecules and potential biological implications | We demonstrate that entanglement can persistently recur in an oscillating two-spin molecule that is coupled to a hot and noisy environment, in which no static entanglement can survive. The system represents a non-equilibrium quantum system which, driven through the oscillatory motion, is prevented from reaching its (se... | [
"quant-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "16216375",
"num_citations": null
}
] | [
{
"author_id": "j cai_38",
"name": "Jianming Cai",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s popescu_3",
"name": "Sandu Popescu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"... | null |
8277382 | 0809.4987 | 2008-09-29 | Efficient 3D Space Time Space Block Code for Future Terrestrial Digital TV | This article introduces a 3D space-time-space block code for future terrestrial digital TV in single frequency networks. The proposed 3D code is based on a double layer structure designed for inter-cell and intra-cell space time coded transmissions. We show that this new structure is particularly efficient for SFN envi... | [
"cs.NI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "y nasser_1",
"name": "Youssef Nasser",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j hélard_1",
"name": "Jean-François Hélard",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
16738108 | 0809.5032 | 2008-09-29 | Identifiability of parameters in latent structure models with many observed variables | While hidden class models of various types arise in many statistical applications, it is often difficult to establish the identifiability of their parameters. Focusing on models in which there is some structure of independence of some of the observed variables conditioned on hidden ones, we demonstrate a general approa... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
834077 | 0809.5009 | 2008-09-29 | Delay Constrained Scheduling over Fading Channels: Optimal Policies for Monomial Energy-Cost Functions | A point-to-point discrete-time scheduling problem of transmitting $B$ information bits within $T$ hard delay deadline slots is considered assuming that the underlying energy-bit cost function is a convex monomial. The scheduling objective is to minimize the expected energy expenditure while satisfying the deadline cons... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15076787 | 0809.4943 | 2008-09-29 | Molecular gas streamers feeding and obscuring the active nucleus of NGC1068 | We report the first direct observations of neutral, molecular gas streaming in the nucleus of NGC1068 on scales of <30 pc using SINFONI near-infrared integral field spectroscopy. At a resolution of 0.075", the flux map of 2.12 $\mu$m 1-0 S(1) molecular hydrogen emission around the nucleus in the central arcsec reveals ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17260029 | 0809.5046 | 2008-09-29 | Hypercompact Stellar Systems Around Recoiling Supermassive Black Holes | A supermassive black hole ejected from the center of a galaxy by gravitational wave recoil carries a retinue of bound stars - a "hypercompact stellar system" (HCSS). The numbers and properties of HCSSs contain information about the merger histories of galaxies, the late evolution of binary black holes, and the distribu... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "118968800",
"num_citations": null
},
{
"corpus_id": "15496725",
"num_citations": null
},
{
"corpus_id": "6207227",
"num_citations": null
},
{
"corpus_id": "14432520",
"num_citations": null
},
{
"corpus_id": "14314439",
"num_citations": null
}... | [
{
"author_id": "d merritt_1",
"name": "David Merritt",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j schnittman_1",
"name": "Jeremy [\"D.\"] Schnittman",
"publication_history": null,
"h_index": null,
"num_... | null |
15270515 | 0809.5020 | 2008-09-29 | Towards an accurate model for the Antennae Galaxies | In the framework of hierarchical structure formation ellipticals can form from merging of smaller disk galaxies. The nearby interacting 'Antennae' galaxy pair (NGC 4038/39) is one of the best-studied local systems of merging spirals, thus presenting us with an ideal laboratory for the study of galaxy evolution models. ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18879377 | 0810.0055 | 2008-09-30 | Comparisons for backward stochastic differential equations on Markov chains and related no-arbitrage conditions | Most previous contributions to BSDEs, and the related theories of nonlinear expectation and dynamic risk measures, have been in the framework of continuous time diffusions or jump diffusions. Using solutions of BSDEs on spaces related to finite state, continuous time Markov chains, we develop a theory of nonlinear expe... | [
"q-fin.CP",
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17505254 | 0810.0008 | 2008-09-30 | Discovery of High-Energy Gamma-Ray Pulsations from PSR J2021+3651 with AGILE | Discovered after the end of the Compton Gamma-Ray Observatory mission, the radio pulsar PSR J2021+3651 was long considered a likely counterpart of the high-energy gamma-ray source 2CG 075+00 = 3EG J2021+3716 = GeV J2020+3658, but it could not be confirmed due to the lack of a contemporaneous radio pulsar ephemeris to f... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119302920 | 0810.0031 | 2008-09-30 | The effect of progenitor age and metallicity on luminosity and 56Ni yield in Type Ia supernovae | Timmes, Brown & Truran found that metallicity variations could theoretically account for a 25% variation in the mass of 56Ni synthesized in Type Ia supernovae (SNe Ia), and thus account for a large fraction of the scatter in observed SN Ia luminosities. Higher-metallicity progenitors are more neutron-rich, producing mo... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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