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6,574
Oceanstore: An architecture for global-scale persistent storage
, 2000
"... OceanStore is a utility infrastructure designed to span the globe and provide continuous access to persistent information. Since this infrastructure is comprised of untrusted servers, data is protected through redundancy and cryptographic techniques. To improve performance, data is allowed to be cac ..."
Abstract
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Cited by 1149 (32 self)
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OceanStore is a utility infrastructure designed to span the globe and provide continuous access to persistent information. Since this infrastructure is comprised of untrusted servers, data is protected through redundancy and cryptographic techniques. To improve performance, data is allowed
Orthogonal matching pursuit: Recursive function approximation with applications to wavelet decomposition
- in Conference Record of The Twenty-Seventh Asilomar Conference on Signals, Systems and Computers
, 1993
"... In this paper we describe a recursive algorithm to compute representations of functions with respect to nonorthogonal and possibly overcomplete dictionaries of elementary building blocks e.g. aiEne (wa.velet) frames. We propoeea modification to the Matching Pursuit algorithm of Mallat and Zhang (199 ..."
Abstract
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Cited by 637 (1 self)
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(1992) that maintains full backward orthogonality of the residual (error) at every step and thereby leads to improved convergence. We refer to this modified algorithm as Orthogonal Matching Pursuit (OMP). It is shown that all additional computation required for the OMP al gorithm may be performed
A Vector-Perturbation technique for Near-Capacity . . .
- IEEE TRANS. COMMUN
, 2005
"... Recent theoretical results describing the sum capacity when using multiple antennas to communicate with multiple users in a known rich scattering environment have not yet been followed with practical transmission schemes that achieve this capacity. We introduce a simple encoding algorithm that achi ..."
Abstract
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Cited by 323 (10 self)
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that achieves near-capacity at sum rates of tens of bits/channel use. The algorithm is a variation on channel inversion that regularizes the inverse and uses a “sphere encoder ” to perturb the data to reduce the power of the transmitted signal. This paper is comprised of two parts. In this first part, we show
Approximating probabilistic inference in Bayesian belief networks is NP-hard
, 1991
"... Abstract- A belief network comprises a graphical representation of dependencies between variables of a domain and a set of conditional probabilities associated with each dependency. Unless P=NP, an efficient, exact algorithm does not exist to compute probabilistic inference in belief networks. Stoch ..."
Abstract
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Cited by 291 (4 self)
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Abstract- A belief network comprises a graphical representation of dependencies between variables of a domain and a set of conditional probabilities associated with each dependency. Unless P=NP, an efficient, exact algorithm does not exist to compute probabilistic inference in belief networks
Breaking Spectrum Gridlock with Cognitive Radios: An Information Theoretic Perspective
, 2008
"... Cognitive radios hold tremendous promise for increasing spectral efficiency in wireless systems. This paper surveys the fundamental capacity limits and associated transmission techniques for different wireless network design paradigms based on this promising technology. These paradigms are unified b ..."
Abstract
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Cited by 265 (4 self)
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by the definition of a cognitive radio as an intelligent wireless communication device that exploits side information about its environment to improve spectrum utilization. This side information typically comprises knowledge about the activity, channels, codebooks and/or messages of other nodes with which
CODA: Congestion detection and avoidance in sensor networks
, 2003
"... Event-driven sensor networks operate under an idle or light load and then suddenly become active in response to a detected or monitored event. The transport of event impulses is likely to lead to varying degrees of congestion in the network depending on the sensing application. It is during these pe ..."
Abstract
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Cited by 244 (9 self)
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these periods of event impulses that the likelihood of congestion is greatest and the information in transit of most importance to users. To address this challenge we propose an energy efficient congestion control scheme for sensor networks called CODA (COngestion Detection and Avoidance) that comprises three
Feedback-directed random test generation
- In ICSE
, 2007
"... We present a technique that improves random test generation by incorporating feedback obtained from executing test inputs as they are created. Our technique builds inputs incrementally by randomly selecting a method call to apply and finding arguments from among previously-constructed inputs. As soo ..."
Abstract
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Cited by 188 (17 self)
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We present a technique that improves random test generation by incorporating feedback obtained from executing test inputs as they are created. Our technique builds inputs incrementally by randomly selecting a method call to apply and finding arguments from among previously-constructed inputs
comprises three morphologically cryptic species
"... Mitochondrial and nuclear phylogenetic analysis with Sanger and next-generation sequencing shows that, in Área de Conservación Guanacaste, Urbanus belliDHJ03) may be biologically separated by Wolbachia, as well as by their genetics. Use of parallel sequencing through 454-pyrosequencing improved the ..."
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Mitochondrial and nuclear phylogenetic analysis with Sanger and next-generation sequencing shows that, in Área de Conservación Guanacaste, Urbanus belliDHJ03) may be biologically separated by Wolbachia, as well as by their genetics. Use of parallel sequencing through 454-pyrosequencing improved
PLAN: A packet language for active networks
, 2006
"... The Internet protocols were designed to emphasize simple routing elements and intelligent hosts. However, there are applications that benefit from allowing hosts to customize or program routers, a concept known as active networking. Since routers are shared, this raises challenges with delivering su ..."
Abstract
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Cited by 175 (28 self)
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sufficient flexibility while preserving or improving performance, security, and safety. PLAN (Packet Language for Active Networks) is a language designed for the SwitchWare active network architecture. This architecture comprises active packets containing PLAN programs that invoke service routines over
Noise Spectrum Estimation in Adverse Environments: Improved Minima . . .
- IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING
, 2003
"... Noise spectrum estimation is a fundamental component of speech enhancement and speech recognition systems. In this paper, we present an Improved Minima Controlled Recursive Averaging (IMCRA) approach, for noise estimation in adverse environments involving non-stationary noise, weak speech components ..."
Abstract
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Cited by 126 (12 self)
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Noise spectrum estimation is a fundamental component of speech enhancement and speech recognition systems. In this paper, we present an Improved Minima Controlled Recursive Averaging (IMCRA) approach, for noise estimation in adverse environments involving non-stationary noise, weak speech
Results 1 - 10
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