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A fast learning algorithm for deep belief nets

by Geoffrey E. Hinton, Simon Osindero - Neural Computation , 2006
"... We show how to use “complementary priors ” to eliminate the explaining away effects that make inference difficult in densely-connected belief nets that have many hidden layers. Using complementary priors, we derive a fast, greedy algorithm that can learn deep, directed belief networks one layer at a ..."
Abstract - Cited by 970 (49 self) - Add to MetaCart
very good generative model of the joint distribution of handwritten digit images and their labels. This generative model gives better digit classification than the best discriminative learning algorithms. The low-dimensional manifolds on which the digits lie are modelled by long ravines in the free-energy

The Impact of Data Aggregation in Wireless Sensor Networks

by Bhaskar Krishnamachari, Deborah Estrin, Stephen Wicker
"... Sensor networks are distributed event-based systems that differ from traditional communication networks in several ways: sensor networks have severe energy constraints, redundant low-rate data, and many-to-one flows. Datacentric mechanisms that perform in-network aggregation of data are needed in th ..."
Abstract - Cited by 400 (12 self) - Add to MetaCart
in this setting for energy-efficient information flow. In this paper we model data-centric routing and compare its performance with traditional end-toend routing schemes. We examine the impact of sourcedestination placement and communication network density on the energy costs and delay associated with data

Tachyon condensation on the brane-antibrane system

by Ashoke Sen - JHEP , 1998
"... A coincident D-brane- anti-D-brane pair has a tachyonic mode. We present an argument showing that at the classical minimum of the tachyonic potential the negative energy density associated with the potential exactly cancels the sum of the tension of the brane and the anti-brane, thereby giving a con ..."
Abstract - Cited by 307 (10 self) - Add to MetaCart
A coincident D-brane- anti-D-brane pair has a tachyonic mode. We present an argument showing that at the classical minimum of the tachyonic potential the negative energy density associated with the potential exactly cancels the sum of the tension of the brane and the anti-brane, thereby giving a

The Variational Formulation of the Fokker-Planck Equation

by Richard Jordan, David Kinderlehrer, Felix Otto - SIAM J. Math. Anal , 1999
"... The Fokker--Planck equation, or forward Kolmogorov equation, describes the evolution of the probability density for a stochastic process associated with an Ito stochastic differential equation. It pertains to a wide variety of time--dependent systems in which randomness plays a role. In this paper, ..."
Abstract - Cited by 282 (22 self) - Add to MetaCart
of this iterative scheme is that the time step is governed by the Wasserstein metric on probability measures. This formulation enables us to reveal an appealing, and previously unexplored, relationship between the Fokker--Planck equation and the associated free energy functional. Namely, we demonstrate

Optimizing Sensor Networks in the Energy-Latency-Density Design Space

by Curt Schurgers, Vlasios Tsiatsis, Saurabh Ganeriwal, Mani Srivastava - IEEE TRANSACTIONS ON MOBILE COMPUTING , 2002
"... In wireless sensor networks, energy efficiency is crucial to achieving satisfactory network lifetime. To reduce the energy consumption significantly, a node should turn off its radio most of the time, except when it has to participate in data forwarding. We propose a new technique, called Sparse T ..."
Abstract - Cited by 194 (1 self) - Add to MetaCart
Topology and Energy Management (STEM), which efficiently wakes up nodes from a deep sleep state without the need for an ultra low-power radio. The designer can trade the energy efficiency of this sleep state for the latency associated with waking up the node. In addition, we integrate STEM

Complete suboptimal folding of RNA and the stability of secondary structures

by Stefan Wuchty, Walter Fontana, Ivo L. Hofacker, Peter Schuster - BIOPOLYMERS 49:145–165 , 1999
"... An algorithm is presented for generating rigorously all suboptimal secondary structures between the minimum free energy and an arbitrary upper limit. The algorithm is particularly fast in the vicinity of the minimum free energy. This enables the efficient approximation of statistical quantities, s ..."
Abstract - Cited by 215 (23 self) - Add to MetaCart
, such as the partition function or measures for structural diversity. The density of states at low energies and its associated structures are crucial in assessing from a thermodynamic point of view how well-defined the ground state is. We demonstrate this by exploring the role of base modification in tRNA secondary

Global and regional climate changes due to black carbon,

by V Ramanathan , G Carmichael - Nat. Geosci., , 2008
"... Figure 1: Global distribution of BC sources and radiative forcing. a, BC emission strength in tons per year from a study by Bond et al. Full size image (42 KB) Review Nature Geoscience 1, 221 -227 (2008 Black carbon in soot is the dominant absorber of visible solar radiation in the atmosphere. Ant ..."
Abstract - Cited by 228 (5 self) - Add to MetaCart
of aerosol optical depth, simulated with a regional aerosol-chemistry transport model 96 (see areas with BC optical depth > 0.01 in What are the opportunities to reduce the positive forcing by BC? Providing alternative energy-efficient and smoke-free cookers and introducing transferring technology

Variational characterisation of Gibbs measures with Delaunay triangle interaction

by David Dereudre, Hans-otto Georgii , 2009
"... This paper deals with stationary Gibbsian point processes on the plane with an interaction that depends on the tiles of the Delaunay triangulation of points via a bounded triangle potential. It is shown that the class of these Gibbs processes includes all minimisers of the associated free energy den ..."
Abstract - Cited by 3 (1 self) - Add to MetaCart
This paper deals with stationary Gibbsian point processes on the plane with an interaction that depends on the tiles of the Delaunay triangulation of points via a bounded triangle potential. It is shown that the class of these Gibbs processes includes all minimisers of the associated free energy

The energy density in . . .

by Clément Hongler, Stanislav Smirnov , 2010
"... We study the critical Ising model on the square lattice in bounded simply connected domains with + and free boundary conditions. We relate the energy density of the model to a discrete fermionic spinor and compute its scaling limit by discrete complex analysis methods. As a consequence, we obtain ..."
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We study the critical Ising model on the square lattice in bounded simply connected domains with + and free boundary conditions. We relate the energy density of the model to a discrete fermionic spinor and compute its scaling limit by discrete complex analysis methods. As a consequence, we obtain

Free-Energy Density of the Shape-Memory Alloy AuZn

by Jason C Lashley , Hassel Ledbetter , Tim W Darling , Avadh Saxena , Artur Malinowski , Michael F Hundley , James L Smith , Dan J Thoma
"... The shape-memory alloy AuZn transforms martensitically (T M ¼ 65 K) from a cubic B2 (Pm " 3 3m) to a rhombohedral R-phase (P3) through softening of the TA 2 [110] phonon branch. We report elastic constants, specific heat, and thermal expansivity measurements through the transition. A large ela ..."
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. On the basis of these measurements, combined with established group-theoretical symmetry criteria, the freeenergy density is presented with atomic shuffle displacements as the primary order parameter, Q. We use this free-energy model to explain the atomic displacements in the R-phase.
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