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 ⌀ |
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8442647 | 0808.1207 | 2008-08-08 | Optimally Efficient Prefix Search and Multicast in Structured P2P Networks | Searching in P2P networks is fundamental to all overlay networks. P2P networks based on Distributed Hash Tables (DHT) are optimized for single key lookups, whereas unstructured networks offer more complex queries at the cost of increased traffic and uncertain success rates. Our Distributed Tree Construction (DTC) appro... | [
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"name": "Jussi Kangasharju",
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14124587 | 0808.1166 | 2008-08-08 | Heat flow on Finsler manifolds | We present two approaches to the heat flow on a Finsler manifold $(M,F)$: either as gradient flow on $L^2(M,m)$ for the energy; or as gradient flow on the reverse $L^2$-Wasserstein space $\mathcal{P}_2(M)$ of probability measures on $M$ for the relative entropy. Both approaches depend on the choice of a measure $m$ on ... | [
"math.AP",
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16752665 | 0808.1226 | 2008-08-08 | On the incidence-prevalence relation and length-biased sampling | For many diseases, logistic and other constraints often render large incidence studies difficult, if not impossible, to carry out. This becomes a drawback, particularly when a new incidence study is needed each time the disease incidence rate is investigated in a different population. However, by carrying out a prevale... | [
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"name": "Masoud Asgharian",
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45662157 | 0808.1266 | 2008-08-08 | A search for the standard model Higgs boson in the missing energy and acoplanar b-jet topology at sqrt(s) = 1.96 TeV | We report a search for the standard model Higgs boson in the missing energy and acoplanar b-jet topology, using an integrated luminosity of 0.93 inverse femtobarn recorded by the D0 detector at the Fermilab Tevatron Collider. The analysis includes signal contributions from pp->ZH->nu nu b b, as well as from WH producti... | [
"hep-ex"
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17994613 | 0808.1378 | 2008-08-09 | A Novel Symbolic Type Neural Network Model- Application to River Flow Forecasting | In this paper we introduce a new symbolic type neural tree network called symbolic function network (SFN) that is based on using elementary functions to model systems in a symbolic form. The proposed formulation permits feature selection, functional selection, and flexible structure. We applied this model on the River ... | [
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"author_id": "g eskander_1",
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"author_id": "a atiya_1",
"name": "Amir [\"F.\"] Atiya",
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7968112 | 0808.1354 | 2008-08-09 | Ockham's razor and reasoning about information flow | What is the minimal algebraic structure to reason about information flow? Do we really need the full power of Boolean algebras with co-closure and de Morgan dual operators? How much can we weaken and still be able to reason about multi-agent scenarios in a tidy compositional way? This paper provides some answers. | [
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] | null |
8295237 | 0808.1361 | 2008-08-09 | A Theory of Hypoellipticity and Unique Ergodicity for Semilinear Stochastic PDEs | We present a theory of hypoellipticity and unique ergodicity for semilinear parabolic stochastic PDEs with "polynomial" nonlinearities and additive noise, considered as abstract evolution equations in some Hilbert space. It is shown that if Hormander's bracket condition holds at every point of this Hilbert space, then ... | [
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11240756 | 0808.1423 | 2008-08-10 | Large-scale magnetic topologies of mid-M dwarfs | We present in this paper the first results of a spectropolarimetric analysis of a small sample (~ 20) of active stars ranging from spectral type M0 to M8, which are either fully-convective or possess a very small radiative core. This study aims at providing new constraints on dynamo processes in fully-convective stars.... | [
"astro-ph"
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9314186 | 0808.1393 | 2008-08-10 | Effective slip over superhydrophobic surfaces in thin channels | Superhydrophobic surfaces reduce drag by combining hydrophobicity and roughness to trap gas bubbles in a micro- and nanoscopic texture. Recent work has focused on specific cases, such as striped grooves or arrays of pillars, with limited theoretical guidance. Here, we consider the experimentally relevant limit of thin ... | [
"physics.flu-dyn"
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"author_id": "m bazant_1",
"name": "Martin [\"Z.\"] Bazant",
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352966 | 0808.1550 | 2008-08-11 | Smoothable del Pezzo surfaces with quotient singularities | We give a complete classification of del Pezzo surfaces with quotient singularities and Picard rank 1 which admit a Q-Gorenstein smoothing. There are 14 infinite families of toric examples. The surfaces in each family correspond to solutions of a Markov-type equation. The remaining surfaces are obtained as deformations... | [
"math.AG"
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28539897 | 0808.1406 | 2008-08-11 | Propagation and Ghosts in the Classical Kagome Antiferromagnet | We investigate the classical spin dynamics of the kagome antiferromagnet by combining Monte Carlo and spin dynamics simulations. We show that this model has two distinct low temperature dynamical regimes, both sustaining propagative modes. The expected gauge invariance type of the low energy low temperature out of plan... | [
"cond-mat.str-el"
] | null | [
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15826802 | 0808.1509 | 2008-08-11 | Regular dependence on initial data for stochastic evolution equations with multiplicative Poisson noise | We prove existence, uniqueness and Lipschitz dependence on the initial datum for mild solutions of stochastic partial differential equations with Lipschitz coefficients driven by Wiener and Poisson noise. Under additional assumptions, we prove Gateaux and Frechet differentiability of solutions with respect to the initi... | [
"math.PR"
] | null | [
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] | null | null | null |
3701288 | 0808.1502 | 2008-08-11 | Circular Law Theorem for Random Markov Matrices | Consider an nxn random matrix X with i.i.d. nonnegative entries with bounded density, mean m, and finite positive variance sigma^2. Let M be the nxn random Markov matrix with i.i.d. rows obtained from X by dividing each row of X by its sum. In particular, when X11 follows an exponential law, then M belongs to the Diric... | [
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] | null | null | null |
14610927 | 0808.1507 | 2008-08-11 | New results on the least common multiple of consecutive integers | When studying the least common multiple of some finite sequences of integers, the first author introduced the interesting arithmetic functions $g_k$ $(k \in \mathbb{N})$, defined by $g_k(n) := \frac{n (n + 1) ... (n + k)}{\lcm(n, n + 1, >..., n + k)}$ $(\forall n \in \mathbb{N} \setminus \{0\})$. He proved that $g_k$ $... | [
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"name": "Daniel [\"M.\"] Kane",
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... | null |
13840352 | 0808.1493 | 2008-08-11 | On Jordan type inequalities for hyperbolic functions | This paper deals with some inequalities for trigonometric and hyperbolic functions such as the Jordan inequality and its generalizations. In particular, lower and upper bounds for functions such as (sin x)/x and x/(sinh x) are proved. | [
"math.CA"
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5816770 | 0808.1713 | 2008-08-12 | Loose Hamilton cycles in hypergraphs | We prove that any k-uniform hypergraph on n vertices with minimum degree at least n/(2(k-1))+o(n) contains a loose Hamilton cycle. The proof strategy is similar to that used by K\"uhn and Osthus for the 3-uniform case. Though some additional difficulties arise in the k-uniform case, our argument here is considerably si... | [
"math.CO"
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8362572 | 0808.1594 | 2008-08-12 | Extremely high precision VLBI astrometry of PSR J0437-4715 and implications for theories of gravity | Using the recently upgraded Long Baseline Array, we have measured the trigonometric parallax of PSR J0437-4715 to better than 1% precision, the most precise pulsar distance determination made to date. Comparing this VLBI distance measurement to the kinematic distance obtained from pulsar timing, which is calculated fro... | [
"astro-ph"
] | null | [
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] | null | null | null |
207063997 | 0808.1787 | 2008-08-12 | Transitive-Closure Spanners | Given a directed graph G = (V,E) and an integer k>=1, a k-transitive-closure-spanner (k-TC-spanner) of G is a directed graph H = (V, E_H) that has (1) the same transitive-closure as G and (2) diameter at most k. These spanners were implicitly studied in access control, data structures, and property testing, and propert... | [
"cs.DS",
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] | null | [
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] | null | null | null |
12149871 | 0808.1671 | 2008-08-12 | Algorithmic Pricing via Virtual Valuations | Algorithmic pricing is the computational problem that sellers (e.g., in supermarkets) face when trying to set prices for their items to maximize their profit in the presence of a known demand. Guruswami et al. (2005) propose this problem and give logarithmic approximations (in the number of consumers) when each consume... | [
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"name": "Jason [\"D.\"] Hartline",
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8525776 | 0808.1769 | 2008-08-13 | Spectroscopic Confirmation of the Fifth Image of SDSS J1004+4112 and Implications for the M_BH-sigma_* Relation at z=0.68 | We present the results of deep spectroscopy for the central region of the cluster lens SDSS J1004+4112 with the Subaru telescope. A secure detection of an emission line of the faint blue stellar object (component E) near the center of the brightest cluster galaxy (G1) confirms that it is the central fifth image of the ... | [
"astro-ph"
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"author_id": "n inada_1",
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"name": "Masamune Oguri",
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... | null |
236171492 | 0808.1850 | 2008-08-13 | Questions about determinants and polynomials | We discuss several conjectures about the real-rootedness of polynomials whose coefficients are determinants of coefficients of a real-rooted polynomial. We also consider some questions about matrices generalizing totally positive matrices, namely totally stable matrices and totally upper matrices. | [
"math.CA",
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884871 | 0808.1865 | 2008-08-13 | Heteroclinic connections in plane Couette flow | Plane Couette flow transitions to turbulence for Re~325 even though the laminar solution with a linear profile is linearly stable for all Re (Reynolds number). One starting point for understanding this subcritical transition is the existence of invariant sets in the state space of the Navier Stokes equation, such as up... | [
"physics.flu-dyn"
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"author_id": "j gibson_4",
"name": "John [\"F.\"] Gibson",
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"nu... | null |
14174042 | 0808.1725 | 2008-08-13 | Gravity Duals of Lifshitz-like Fixed Points | We find candidate macroscopic gravity duals for scale-invariant but non-Lorentz invariant fixed points, which do not have particle number as a conserved quantity. We compute two-point correlation functions which exhibit novel behavior relative to their AdS counterparts, and find holographic renormalization group flows ... | [
"hep-th",
"cond-mat.str-el"
] | null | [
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] | null | null | null |
119299039 | 0808.1880 | 2008-08-13 | Phantom Dark Energy Models with a Nearly Flat Potential | We examine phantom dark energy models produced by a field with a negative kinetic term and a potential that satisfies the slow roll conditions: [(1/V)(dV/dphi)]^2 << 1 and (1/V)(d^2 V/dphi^2) << 1. Such models provide a natural mechanism to produce an equation of state parameter, w, slightly less than -1 at present. Us... | [
"astro-ph",
"gr-qc"
] | null | [
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] | null | null | null |
14242070 | 0808.2059 | 2008-08-14 | Diversity-Multiplexing Tradeoffs in MIMO Relay Channels | A multi-hop relay channel with multiple antenna terminals in a quasi-static slow fading environment is considered. For both full-duplex and half-duplex relays the fundamental diversity-multiplexing tradeoff (DMT) is analyzed. It is shown that, while decode-and-forward (DF) relaying achieves the optimal DMT in the full-... | [
"cs.IT",
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"name": "Andrea [\"J.\"] Goldsmith",
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28405279 | 0808.1926 | 2008-08-14 | Maximal Success Probabilities of Linear-Optical Quantum Gates | Numerical optimization is used to design linear-optical devices that implement a desired quantum gate with perfect fidelity, while maximizing the success rate. For the 2-qubit CS (or CNOT) gate, we provide numerical evidence that the maximum success rate is $S=2/27$ using two unentangled ancilla resources; interestingl... | [
"quant-ph"
] | null | [
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] | null | null | null |
14412863 | 0808.2051 | 2008-08-14 | First Results From The Taiwanese-American Occultation Survey (TAOS) | Results from the first two years of data from the Taiwanese-American Occultation Survey (TAOS) are presented. Stars have been monitored photometrically at 4 Hz or 5 Hz to search for occultations by small (~3 km) Kuiper Belt Objects (KBOs). No statistically significant events were found, allowing us to present an upper ... | [
"astro-ph"
] | null | [
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"name": "Federica [\"B.\"] Bianco",
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13880505 | 0808.2045 | 2008-08-14 | Correctness is not enough | The usual aim of spreadsheet audit is to verify correctness. There are two problems with this: first, it is often difficult to tell whether the spreadsheets in question are correct, and second, even if they are, they may still give the wrong results. These problems are explained in this paper, which presents the key cr... | [
"cs.SE",
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] | null | [
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] | null | null | null |
2629901 | 0808.2081 | 2008-08-14 | Concurrent Imitation Dynamics in Congestion Games | Imitating successful behavior is a natural and frequently applied approach to trust in when facing scenarios for which we have little or no experience upon which we can base our decision. In this paper, we consider such behavior in atomic congestion games. We propose to study concurrent imitation dynamics that emerge w... | [
"cs.GT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
53341140 | 0808.2147 | 2008-08-15 | Tuning the Charge Density Wave and Superconductivity in CuxTaS2 | We report the characterization of layered, 2H-type CuxTaS2, for x between 0 and 0.12. The charge density wave (CDW), at 70 K for TaS2, is destabilized with Cu doping. The sub-1K superconducting transition in undoped 2H-TaS2 jumps quickly to 2.5 K at low x, increases to 4.5 K at the optimal composition Cu0.04TaS2, and t... | [
"cond-mat.supr-con"
] | null | [
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] | null | null | null |
18488621 | 0808.2195 | 2008-08-15 | Scaling of degree correlations and the influence on diffusion in scale-free networks | Connectivity correlations play an important role in the structure of scale-free networks. While several empirical studies exist, there is no general theoretical analysis that can explain the largely varying behavior of real networks. Here, we use scaling theory to quantify the degree of correlations in the particular c... | [
"physics.soc-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
26601901 | 0808.2181 | 2008-08-15 | Spectrum Sharing Between Cellular and Mobile Ad Hoc Networks: Transmission-Capacity Trade-Off | Spectrum sharing between wireless networks improves the efficiency of spectrum usage, and thereby alleviates spectrum scarcity due to growing demands for wireless broadband access. To improve the usual underutilization of the cellular uplink spectrum, this paper studies spectrum sharing between a cellular uplink and a ... | [
"cs.IT",
"math.IT"
] | null | [
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] | null | null | null |
2259400 | 0808.2073 | 2008-08-15 | Lower Bounds on the Rate-Distortion Function of LDGM Codes | A recent line of work has focused on the use of low-density generator matrix (LDGM) codes for lossy source coding. In this paper, wedevelop a generic technique for deriving lower bounds on the rate-distortion functions of binary linear codes, with particular interest on the effect of bounded degrees. The underlying ide... | [
"cs.IT",
"math.IT"
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{
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"author_id": "m wainwright_1",
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15225901 | 0808.2152 | 2008-08-15 | High-dimensional Gaussian model selection on a Gaussian design | We consider the problem of estimating the conditional mean of a real Gaussian variable $\nolinebreak Y=\sum_{i=1}^p\nolinebreak\theta_iX_i+\nolinebreak \epsilon$ where the vector of the covariates $(X_i)_{1\leq i\leq p}$ follows a joint Gaussian distribution. This issue often occurs when one aims at estimating the grap... | [
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10862139 | 0808.2222 | 2008-08-15 | Better Bounds for Frequency Moments in Random-Order Streams | Estimating frequency moments of data streams is a very well studied problem and tight bounds are known on the amount of space that is necessary and sufficient when the stream is adversarially ordered. Recently, motivated by various practical considerations and applications in learning and statistics, there has been gro... | [
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11864430 | 0808.2088 | 2008-08-15 | Density estimates and concentration inequalities with Malliavin calculus | We show how to use the Malliavin calculus to obtain density estimates of the law of general centered random variables. In particular, under a non-degeneracy condition, we prove and use a new formula for the density of a random variable which is measurable and differentiable with respect to a given isonormal Gaussian pr... | [
"math.PR",
"math.FA"
] | null | [
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14090027 | 0808.2239 | 2008-08-16 | Implicit-Explicit Variational Integration of Highly Oscillatory Problems | In this paper, we derive a variational integrator for certain highly oscillatory problems in mechanics. To do this, we take a new approach to the splitting of fast and slow potential forces: rather than splitting these forces at the level of the differential equations or the Hamiltonian, we split the two potentials wit... | [
"math.NA"
] | null | [
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{
"author_id": "a stern_2",
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{
"author_id": "e grinspun_1",
"name": "Eitan Grinspun",
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"... | null |
365979 | 0808.2234 | 2008-08-16 | Sum of squares of degrees in a graph | Let $\G(v,e)$ be the set of all simple graphs with $v$ vertices and $e$ edges and let $P_2(G)=\sum d_i^2$ denote the sum of the squares of the degrees, $d_1, >..., d_v$, of the vertices of $G$. It is known that the maximum value of $P_2(G)$ for $G \in \G(v,e)$ occurs at one or both of two special graphs in $\G(v,e)$--t... | [
"math.CO"
] | null | [
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] | null | null | null |
16920095 | 0808.2231 | 2008-08-16 | The limited role of non-native contacts in folding pathways of a lattice protein | Models of protein energetics which neglect interactions between amino acids that are not adjacent in the native state, such as the Go model, encode or underlie many influential ideas on protein folding. Implicit in this simplification is a crucial assumption that has never been critically evaluated in a broad context: ... | [
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14983380 | 0808.2241 | 2008-08-16 | Persistent Clustering and a Theorem of J. Kleinberg | We construct a framework for studying clustering algorithms, which includes two key ideas: persistence and functoriality. The first encodes the idea that the output of a clustering scheme should carry a multiresolution structure, the second the idea that one should be able to compare the results of clustering algorithm... | [
"stat.ML"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18791697 | 0808.2314 | 2008-08-17 | Capacity of Symmetric K-User Gaussian Very Strong Interference Channels | This paper studies a symmetric K user Gaussian interference channel with K transmitters and K receivers. A "very strong" interference regime is derived for this channel setup. A "very strong" interference regime is one where the capacity region of the interference channel is the same as the capacity region of the chann... | [
"cs.IT",
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] | null | [
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"name": "Amin Jafarian",
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26711376 | 0808.2383 | 2008-08-18 | How to Draw Tropical Planes | The tropical Grassmannian parameterizes tropicalizations of linear spaces, while the Dressian parameterizes all planes in $\TP^{n-1}$. We study these parameter spaces and we compute them explicitly for $n \leq 7$. Planes are identified with matroid subdivisions and with arrangements of trees. These representations are ... | [
"math.CO",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10558090 | 0808.2391 | 2008-08-18 | Star formation rates in Lyman break galaxies: radio stacking of LBGs in the COSMOS field and the sub-$\mu$Jy radio source population | We present an analysis of the radio properties of large samples of Lyman Break Galaxies (LBGs) at $z \sim 3$, 4, and 5 from the COSMOS field. The median stacking analysis yields a statistical detection of the $z \sim 3$ LBGs (U-band drop-outs), with a 1.4 GHz flux density of $0.90 \pm 0.21 \mu$Jy. The stacked emission ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
278392 | 0808.2462 | 2008-08-18 | Thermal relic abundances of long-lived staus | In supersymmetric models with a long-lived stau being the lightest Standard Model superpartner, the stau abundance during primordial nucleosynthesis is tightly constrained. Considering the complete set of stau annihilation channels in the minimal supersymmetric Standard Model (MSSM) with real parameters for scenarios i... | [
"hep-ph",
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12234179 | 0808.2412 | 2008-08-18 | Relationship between vibrations and dynamical heterogeneity in a model glass former: extended soft modes but local relaxation | We study the relation between short-time vibrational modes and long-time relaxational dynamics in a kinetically constrained lattice gas with harmonic interactions between neighbouring particles. We find a correlation between the location of the low (high) frequency vibrational modes and regions of high (low) propensity... | [
"cond-mat.stat-mech"
] | null | [
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16201614 | 0808.2456 | 2008-08-18 | Experimentally testable state-independent quantum contextuality | We show that there are Bell-type inequalities for noncontextual theories that are violated by any quantum state. One of these inequalities between the correlations of compatible measurements is particularly suitable for testing this state-independent violation in an experiment. | [
"quant-ph"
] | null | [
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] | null | null | null |
14593818 | 0808.2492 | 2008-08-18 | Faranoff-Riley type I jet deceleration at density discontinuities "Relativistic hydrodynamics with realistic equation of state" | The deceleration mechanisms for relativistic jets in active galactic nuclei remain an open question, and in this paper we propose a model which could explain sudden jet deceleration, invoking density discontinuities. This is particularly motivated by recent indications from HYMORS. Exploiting high resolution, numerical... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16909515 | 0808.2417 | 2008-08-18 | On NFAs Where All States are Final, Initial, or Both | We examine questions involving nondeterministic finite automata where all states are final, initial, or both initial and final. First, we prove hardness results for the nonuniversality and inequivalence problems for these NFAs. Next, we characterize the languages accepted. Finally, we discuss some state complexity prob... | [
"cs.CC",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14937466 | 0808.2550 | 2008-08-19 | The Vertical Structure of Warm Ionised Gas in the Milky Way | We present a new joint analysis of pulsar dispersion measures and diffuse H-alpha emission in the Milky Way, which we use to derive the density, pressure and filling factor of the thick disk component of the warm ionised medium (WIM) as a function of height above the Galactic disk. By excluding sightlines at low Galact... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2982842 | 0808.2664 | 2008-08-19 | Communication-optimal parallel and sequential QR and LU factorizations | We present parallel and sequential dense QR factorization algorithms that are both optimal (up to polylogarithmic factors) in the amount of communication they perform, and just as stable as Householder QR. We prove optimality by extending known lower bounds on communication bandwidth for sequential and parallel matrix ... | [
"math.NA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8071414 | 0808.2670 | 2008-08-19 | Solving the apparent diversity-accuracy dilemma of recommender systems | Recommender systems use data on past user preferences to predict possible future likes and interests. A key challenge is that while the most useful individual recommendations are to be found among diverse niche objects, the most reliably accurate results are obtained by methods that recommend objects based on user or o... | [
"cs.IR",
"physics.soc-ph"
] | null | [
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] | null | null | null |
5548779 | 0808.2641 | 2008-08-19 | Fitting the Gamma-Ray Spectrum from Dark Matter with DMFIT: GLAST and the Galactic Center Region | We study the potential of GLAST to unveil particle dark matter properties with gamma-ray observations of the Galactic center region. We present full GLAST simulations including all gamma-ray sources known to date in a region of 4 degrees around the Galactic center, in addition to the diffuse gamma-ray background and to... | [
"astro-ph",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18247630 | 0808.2552 | 2008-08-19 | BAT - The Bayesian Analysis Toolkit | We describe the development of a new toolkit for data analysis. The analysis package is based on Bayes' Theorem, and is realized with the use of Markov Chain Monte Carlo. This gives access to the full posterior probability distribution. Parameter estimation, limit setting and uncertainty propagation are implemented in ... | [
"physics.data-an",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14190714 | 0808.2628 | 2008-08-19 | Liberation of orthogonal Lie groups | We show that under suitable assumptions, we have a one-to-one correspondence between classical groups and free quantum groups, in the compact orthogonal case. We classify the groups under correspondence, with the result that there are exactly 6 of them: $O_n,S_n,H_n,B_n,S_n',B_n'$. We investigate the representation the... | [
"math.QA"
] | null | [
"target.key_reference"
] | null | null | null |
15981010 | 0808.2611 | 2008-08-19 | The Evolution of L and T Dwarfs in Color-Magnitude Diagrams | We present new evolution sequences for very low mass stars, brown dwarfs and giant planets and use them to explore a variety of influences on the evolution of these objects. We compare our results with previous work and discuss the causes of the differences and argue for the importance of the surface boundary condition... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118388371 | 0808.2533 | 2008-08-19 | Quantum tetrahedron and its classical limit | We present an asymptotically optimal generalized measurement for the Classical information that is retrieved from a quantum tetrahedron is intrinsically fuzzy. We present an asymptotically optimal generalized measurement for the extraction of classical information from a quantum tetrahedron. For a single tetrahedron th... | [
"gr-qc",
"quant-ph"
] | null | [
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{
"author_id": "d terno_1",
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] | null |
18495905 | 0808.2742 | 2008-08-20 | J1420--0545: The radio galaxy larger than 3C236 | We report the discovery of the largest giant radio galaxy, J1420-0545: a FR type II radio source with an angular size of 17.4' identified with an optical galaxy at z=0.3067. Thus, the projected linear size of the radio structure is 4.69 Mpc (if we assume that H_{0}=71 km\s\Mpc, Omega_{m}=0.27, and Omega_{\Lambda}=0.73)... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3074806 | 0808.2776 | 2008-08-20 | Phases of Higher Dimensional Black Holes | We review some of the most striking properties of the phase diagrams of higher dimensional black holes in pure gravity. We focus on static black hole solutions with Kaluza-Klein asymptotics and stationary black hole solutions in flat Minkowski space. Both cases exhibit a rich pattern of interconnected phases and merger... | [
"hep-th"
] | null | [
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119273769 | 0808.2680 | 2008-08-20 | Optimal control of a leaking qubit | Physical implementations of quantum bits can contain coherent transitions to energetically close non-qubit states. In particular, for anharmonic oscillator systems such as the superconducting phase qubit and the transmon a two-level approximation is insufficient. We apply optimal control theory to the envelope of a res... | [
"quant-ph"
] | null | [
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{
"author_id": "p rebentrost_1",
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"author_id": "f wilhelm_1",
"name": "Frank [\"K.\"] Wilhelm",
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730975 | 0808.2749 | 2008-08-20 | An invitation to toric degenerations | This is an expository paper which explores the ideas of the authors' paper "From Affine Geometry to Complex Geometry", arXiv:0709.2290. We explain the basic ideas of the latter paper by going through a large number of concrete, increasingly complicated examples. | [
"math.AG",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
787051 | 0808.2676 | 2008-08-20 | Efficient and Robust Secure Aggregation for Sensor Networks | Wireless Sensor Networks (WSNs) rely on in-network aggregation for efficiency, however, this comes at a price: A single adversary can severely influence the outcome by contributing an arbitrary partial aggregate value. Secure in-network aggregation can detect such manipulation. But as long as such faults persist, no ag... | [
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"name": "Panos Papadimitratos",
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8953603 | 0808.2771 | 2008-08-20 | Seiberg Duality in Chern-Simons Theories with Fundamental and Adjoint Matter | We explore the dynamics of three-dimensional Chern-Simons gauge theories with N=2 supersymmetry and matter in the fundamental and adjoint representations of the gauge group. Realizing the gauge theories of interest in a setup of threebranes and fivebranes in type IIB string theory we argue for a Seiberg duality that re... | [
"hep-th"
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] | null |
119259958 | 0808.2673 | 2008-08-20 | Preferred-Frame and CP-Violation Tests with Polarized Electrons | We used a torsion pendulum containing $\approx 10^{23}$ polarized electrons to search new interactions that couple to electron spin. We limit CP-violating interactions between the pendulum's electrons and unpolarized matter in the earth or the sun, test for rotation and boost-dependent preferred-frame effects using the... | [
"hep-ex"
] | null | [
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"author_id": "e adelberger_1",
"name": "Eric [\"George\"] Adelberger",
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13963873 | 0808.2801 | 2008-08-20 | Discretized Multinomial Distributions and Nash Equilibria in Anonymous Games | We show that there is a polynomial-time approximation scheme for computing Nash equilibria in anonymous games with any fixed number of strategies (a very broad and important class of games), extending the two-strategy result of Daskalakis and Papadimitriou 2007. The approximation guarantee follows from a probabilistic ... | [
"cs.GT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
675731 | 0808.2775 | 2008-08-20 | Parallel approximation of non-interactive zero-sum quantum games | This paper studies a simple class of zero-sum games played by two competing quantum players: each player sends a mixed quantum state to a referee, who performs a joint measurement on the two states to determine the players' payoffs. We prove that an equilibrium point of any such game can be approximated by means of an ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference",
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] | null | null | null |
15630116 | 0808.2877 | 2008-08-21 | Stein's method for discrete Gibbs measures | Stein's method provides a way of bounding the distance of a probability distribution to a target distribution $\mu$. Here we develop Stein's method for the class of discrete Gibbs measures with a density $e^V$, where $V$ is the energy function. Using size bias couplings, we treat an example of Gibbs convergence for str... | [
"math.PR"
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"name": "Gesine Reinert",
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119258273 | 0808.2868 | 2008-08-21 | Measurement of the solar 8B neutrino rate with a liquid scintillator target and 3 MeV energy threshold in the Borexino detector | We report the measurement of electron neutrino elastic scattering from 8B solar neutrinos with 3 MeV energy threshold by the Borexino detector in Gran Sasso (Italy). The rate of solar neutrino-induced electron scattering events above this energy in Borexino is 0.217 +- 0.038 (stat) +- 0.008 (syst) cpd/100 t, which corr... | [
"astro-ph",
"hep-ex",
"nucl-ex"
] | null | [
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] | null | null | null |
18335611 | 0808.2870 | 2008-08-21 | Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits | We report new precision measurements of the properties of our Galaxy's supermassive black hole. Based on astrometric (1995-2007) and radial velocity (2000-2007) measurements from the W. M. Keck 10-meter telescopes, a fully unconstrained Keplerian orbit for the short period star S0-2 provides values for Ro of 8.0+-0.6 k... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15226770 | 0808.2981 | 2008-08-21 | Quantifying the heart of darkness with GHALO - a multi-billion particle simulation of our galactic halo | We perform a series of simulations of a Galactic mass dark matter halo at different resolutions, our largest uses over three billion particles and has a mass resolution of 1000 M_sun. We quantify the structural properties of the inner dark matter distribution and study how they depend on numerical resolution. We can me... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15950826 | 0808.3145 | 2008-08-22 | Approximate capacity of the two-way relay channel: A deterministic approach | We study the capacity of the full-duplex bidirectional (or two-way) relay channel with two nodes and one relay. The channels in the forward direction are assumed to be different (in general) than the channels in the backward direction, i.e. channel reciprocity is not assumed. We use the recently proposed deterministic ... | [
"cs.IT",
"math.IT"
] | null | [
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"author_id": "a sezgin_1",
"name": "Aydin Sezgin",
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16042335 | 0808.3140 | 2008-08-22 | Direct calculation of the radiative efficiency of an accretion disk around a black hole | Numerical simulation of magnetohydrodynamic (MHD) turbulence makes it possible to study accretion dynamics in detail. However, special effort is required to connect inflow dynamics (dependent largely on angular momentum transport) to radiation (dependent largely on thermodynamics and photon diffusion). To this end we e... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
410441 | 0808.3231 | 2008-08-23 | Multi-Instance Multi-Label Learning | In this paper, we propose the MIML (Multi-Instance Multi-Label learning) framework where an example is described by multiple instances and associated with multiple class labels. Compared to traditional learning frameworks, the MIML framework is more convenient and natural for representing complicated objects which have... | [
"cs.LG",
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] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118634097 | 0808.3382 | 2008-08-25 | The Chiral Magnetic Effect | Topological charge changing transitions can induce chirality in the quark-gluon plasma by the axial anomaly. We study the equilibrium response of the quark-gluon plasma in such a situation to an external magnetic field. To mimic the effect of the topological charge changing transitions we will introduce a chiral chemic... | [
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14882610 | 0808.3401 | 2008-08-25 | Substructures in hydrodynamical cluster simulations | The abundance and structure of dark matter subhalos has been analyzed extensively in recent studies of dark matter-only simulations, but comparatively little is known about the impact of baryonic physics on halo substructures. We here extend the SUBFIND algorithm for substructure identification such that it can be reli... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6600113 | 0808.3348 | 2008-08-25 | Torsional oscillators and the entropy dilemma of putative supersolid He-4 | Solid He-4 is viewed as a nearly perfect Debye solid. Yet, recent calorimetry measurements by the PSU group (J. Low Temp. Phys. 138, 853 (2005) and Nature 449, 1025 (2007)) indicate that at low temperatures the specific heat has both cubic and linear contributions. These features appear in the same temperature range wh... | [
"cond-mat.mtrl-sci",
"cond-mat.dis-nn"
] | null | [
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{
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{
"author_id": "a balatsky_1",
"name": "Alexander [\"Vladimirovich\"] Balatsky",
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18654997 | 0808.3416 | 2008-08-25 | Uncertainty quantification in complex systems using approximate solvers | This paper proposes a novel uncertainty quantification framework for computationally demanding systems characterized by a large vector of non-Gaussian uncertainties. It combines state-of-the-art techniques in advanced Monte Carlo sampling with Bayesian formulations. The key departure from existing works is the use of i... | [
"stat.CO",
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] | null | [
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{
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] | null |
7215499 | 0808.3410 | 2008-08-25 | Interacting String Multi-verses and Holographic Instabilities of Massive Gravity | Products of large-N conformal field theories coupled by multi-trace interactions in diverse dimensions are used to define quantum multi-gravity (multi-string theory) on a union of (asymptotically) AdS spaces. One-loop effects generate a small O(1/N) mass for some of the gravitons. The boundary gauge theory and the AdS/... | [
"hep-th"
] | null | [
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{
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168049 | 0808.3572 | 2008-08-26 | Model-Based Compressive Sensing | Compressive sensing (CS) is an alternative to Shannon/Nyquist sampling for the acquisition of sparse or compressible signals that can be well approximated by just K << N elements from an N-dimensional basis. Instead of taking periodic samples, CS measures inner products with M < N random vectors and then recovers the s... | [
"cs.IT",
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"name": "Volkan Cevher",
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976078 | 0808.3431 | 2008-08-26 | Jamming in Fixed-Rate Wireless Systems with Power Constraints - Part I: Fast Fading Channels | This is the first part of a two-part paper that studies the problem of jamming in a fixed-rate transmission system with fading. Both transmitter and jammer are subject to power constraints which can be enforced over each codeword short-term / peak) or over all codewords (long-term / average), hence generating different... | [
"cs.IT",
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"math.IT"
] | null | [
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] | [] | [
{
"author_id": "g amariucai_1",
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{
"author_id": "s wei_43",
"name": "Shuangqing Wei",
"publication_history": null,
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11007839 | 0808.3574 | 2008-08-26 | Classical Knowledge for Quantum Security | We propose a decision procedure for analysing security of quantum cryptographic protocols, combining a classical algebraic rewrite system for knowledge with an operational semantics for quantum distributed computing. As a test case, we use our procedure to reason about security properties of a recently developed quantu... | [
"cs.CR",
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"quant-ph"
] | null | [
"target.author.publication_history"
] | [
{
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}
] | [
{
"author_id": "e d'hondt_0",
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},
{
"author_id": "m sadrzadeh_1",
"name": "Mehrnoosh Sadrzadeh",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
16134257 | 0808.3436 | 2008-08-26 | Suzaku Observation of HESS J1825-137: Discovery of Largely-Extended X-rays near from PSR J1826-1334 | We observed the brightest part of HESS J1825-137 with the Suzaku XIS, and found diffuse X-rays extending at least up to 15' (~ 17 pc) from the pulsar PSR J1826-1334. The spectra have no emission line, and are fitted with an absorbed power-law model. The X-rays, therefore, are likely due to synchrotron emission from a p... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17849676 | 0808.3466 | 2008-08-26 | On sequential Monte Carlo, partial rejection control and approximate Bayesian computation | We present a sequential Monte Carlo sampler variant of the partial rejection control algorithm, and show that this variant can be considered as a sequential Monte Carlo sampler with a modified mutation kernel. We prove that the new sampler can reduce the variance of the incremental importance weights when compared with... | [
"stat.CO",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
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},
{
"corpus_id": "14244782",
"num_citations": null
},
{
"corpus_id": "12074789",
"num_citations": null
}
] | [
{
"author_id": "g peters_2",
"name": "Gareth [\"W.\"] Peters",
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"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "y fan_78",
"name": "Yanan Fan",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
2125442 | 0808.3418 | 2008-08-26 | Jamming in Fixed-Rate Wireless Systems with Power Constraints - Part II: Parallel Slow Fading Channels | This is the second part of a two-part paper that studies the problem of jamming in a fixed-rate transmission system with fading. In the first part, we studied the scenario with a fast fading channel, and found Nash equilibria of mixed strategies for short term power constraints, and for average power constraints with a... | [
"cs.IT",
"cs.CR",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g amariucai_1",
"name": "George [\"T.\"] Amariucai",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s wei_43",
"name": "Shuangqing Wei",
"publication_history": null,
"h_index": null,
"num_pape... | null |
827483 | 0808.3577 | 2008-08-26 | Singular reduction operators in two dimensions | The notion of singular reduction operators, i.e., of singular operators of nonclassical (conditional) symmetry, of partial differential equations in two independent variables is introduced. All possible reductions of these equations to first-order ODEs are are exhaustively described. As examples, properties of singular... | [
"math.AP",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2406643 | 0808.3747 | 2008-08-27 | Forward Correction and Fountain codes in Delay Tolerant Networks | Delay tolerant Ad-hoc Networks make use of mobility of relay nodes to compensate for lack of permanent connectivity and thus enable communication between nodes that are out of range of each other. To decrease delivery delay, the information that needs to be delivered is replicated in the network. Our objective in this ... | [
"cs.NI",
"cs.PF"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14895455 | 0808.3630 | 2008-08-27 | Periodic Oscillations in the Intra-day Optical Light Curves of the Blazar S5 0716+714 | We present results of a periodicity search of 20 intra-day variable optical light curves of the blazar S5 0716+714, selected from a database of 102 light curves spanning over three years. We use a wavelet analysis technique along with a randomization test and find strong candidates for nearly periodic variations in eig... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17552359 | 0808.3751 | 2008-08-27 | Necessary and sufficient conditions for the existence of the q-optimal measure | This paper presents the general form and essential properties of the q-optimal measure following the approach of Delbaen and Schachermayer (1996) and proves its existence under mild conditions. Most importantly, it states a necessary and sufficient condition for a candidate measure to be the q-optimal measure in the ca... | [
"math.PR"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s sabanis_1",
"name": "Sotirios Sabanis",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
6955803 | 0808.3776 | 2008-08-27 | Relativistic Lee Model on Riemannian Manifolds | We study the relativistic Lee model on static Riemannian manifolds. The model is constructed nonperturbatively through its resolvent, which is based on the so-called principal operator and the heat kernel techniques. It is shown that making the principal operator well-defined dictates how to renormalize the parameters ... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6837086 | 0808.3674 | 2008-08-27 | Comix, a new matrix element generator | We present a new tree-level matrix element generator, based on the colour dressed Berends-Giele recursive relations. We discuss two new algorithms for phase space integration, dedicated to be used with large multiplicities and colour sampling. | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1632373 | 0808.3623 | 2008-08-27 | Calculation of material properties for arbitrary shape transformation media | We propose a general method to evaluate the material parameters for arbitrary shape transformation media. By solving the original coordinates in the transformed region via Laplace's equations, we can obtain the deformation field numerically, in turn the material properties of the devices to be designed such as cloaks, ... | [
"physics.optics"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "12253988",
"num_citations": null
}
] | [
{
"author_id": "j hu_98",
"name": "Jin Hu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "x zhou_55",
"name": "Xiaoming Zhou",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citat... | null |
7250283 | 0808.3631 | 2008-08-27 | Large deviations for infinite dimensional stochastic dynamical systems | The large deviations analysis of solutions to stochastic differential equations and related processes is often based on approximation. The construction and justification of the approximations can be onerous, especially in the case where the process state is infinite dimensional. In this paper we show how such approxima... | [
"math.PR"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a budhiraja_2",
"name": "Amarjit Budhiraja",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p dupuis_1",
"name": "Paul Dupuis",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
4373541 | 0808.3772 | 2008-08-27 | A common mass scale for satellite galaxies of the Milky Way | The Milky Way has at least twenty-three known satellite galaxies that shine with luminosities ranging from about a thousand to a billion times that of the Sun. Half of these galaxies were discovered in the past few years in the Sloan Digital Sky Survey, and they are among the least luminous galaxies in the known Univer... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118372605 | 0808.3973 | 2008-08-28 | Randomized benchmarking of single and multi-qubit control in liquid-state NMR quantum information processing | Being able to quantify the level of coherent control in a proposed device implementing a quantum information processor (QIP) is an important task for both comparing different devices and assessing a device's prospects with regards to achieving fault-tolerant quantum control. We implement in a liquid-state nuclear magne... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15787078 | 0808.3996 | 2008-08-28 | Dynamical and Statistical Criticality in a Model of Neural Tissue | For the nervous system to work at all, a delicate balance of excitation and inhibition must be achieved. However, when such a balance is sought by global strategies, only few modes remain balanced close to instability, and all other modes are strongly stable. Here we present a simple model of neural tissue in which thi... | [
"q-bio.NC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m magnasco_1",
"name": "Marcelo [\"O.\"] Magnasco",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "o piro_1",
"name": "Oreste Piro",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
6254915 | 0808.3971 | 2008-08-28 | Networked MIMO with Clustered Linear Precoding | A clustered base transceiver station (BTS) coordination strategy is proposed for a large cellular MIMO network, which includes full intra-cluster coordination to enhance the sum rate and limited inter-cluster coordination to reduce interference for the cluster edge users. Multi-cell block diagonalization is used to coo... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1463527 | 0808.3773 | 2008-08-28 | Area laws for the entanglement entropy - a review | Physical interactions in quantum many-body systems are typically local: Individual constituents interact mainly with their few nearest neighbors. This locality of interactions is inherited by a decay of correlation functions, but also reflected by scaling laws of a quite profound quantity: The entanglement entropy of g... | [
"quant-ph",
"cond-mat.other",
"hep-th",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14715642 | 0809.0009 | 2008-08-29 | Distributed Parameter Estimation in Sensor Networks: Nonlinear Observation Models and Imperfect Communication | The paper studies distributed static parameter (vector) estimation in sensor networks with nonlinear observation models and noisy inter-sensor communication. It introduces \emph{separably estimable} observation models that generalize the observability condition in linear centralized estimation to nonlinear distributed ... | [
"cs.MA",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference",
"target.key_reference"
] | [] | [
{
"author_id": "s kar_1",
"name": "Soummya Kar",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j moura_1",
"name": "José [\"M.\",\"F.\"] Moura",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
235352215 | 0808.4051 | 2008-08-29 | Honest variable selection in linear and logistic regression models via $\ell_1$ and $\ell_1+\ell_2$ penalization | This paper investigates correct variable selection in finite samples via $\ell_1$ and $\ell_1+\ell_2$ type penalization schemes. The asymptotic consistency of variable selection immediately follows from this analysis. We focus on logistic and linear regression models. The following questions are central to our paper: g... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118377770 | 0808.4085 | 2008-08-29 | Signature of Primordial Non-Gaussianity on Matter Power Spectrum | Employing the perturbative treatment of gravitational clustering, we discuss possible effects of primordial non-Gaussianity on the matter power spectrum. As gravitational clustering develops, the coupling between different Fourier modes of density perturbations becomes important and the primordial non-Gaussianity which... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14638405 | 0808.4015 | 2008-08-29 | The Visual Orbit of the 1.1-day Spectroscopic Binary \sigma^2 Coronae Borealis from Interferometry at the CHARA Array | We present an updated spectroscopic orbit and a new visual orbit for the double-lined spectroscopic binary \sigma^2 Coronae Borealis based on radial velocity measurements at the Oak Ridge Observatory in Harvard, Massachusetts and interferometric visibility measurements at the CHARA Array on Mount Wilson. \sigma^2 CrB i... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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