Publications associées à P (complexité)

Discrete stochastic heat equation driven by fractional noise

We consider the parabolic Anderson model on

\mathbb{Z}^d

driven by fractional noise. We prove that it has a mild solution given by Feynman-Kac representation which coincides with the partition function of a directed polymer in a fractional Brownian envir ...

EPFL2014

Kinematic primitives for walking and trotting gaits of a quadruped robot with compliant legs

Auke Ijspeert, Alexander Spröwitz, Mostafa Ajallooeian, Alexandre Tuleu

In this work we research the role of body dynamics in the complexity of kinematic patterns in a quadruped robot with compliant legs. Two gait patterns, lateral sequence walk and trot, along with leg length control patterns of different complexity were impl ...

Frontiers Research Foundation2014

On the Key Schedule of Lightweight Block Ciphers

Serge Vaudenay, Jialin Huang

Key schedules in lightweight block ciphers are often highly simplified, which causes weakness that can be exploited in many attacks. Today it remains an open problem on how to use limited operations to guarantee enough diffusion of key bits in lightweight ...

Springer-Verlag Berlin2014

Audiovisual focus of attention and its application to Ultra High Definition video compression

Touradj Ebrahimi, Martin Rerabek, Jong Seok Lee, Hiromi Nemoto

Using Focus of Attention (FoA) as a perceptual process in image and video compression belongs to well-known approaches to increase coding efficiency. It has been shown that foveated coding, when compression quality varies across the image according to regi ...

SPIE2014

Universal Polar Codes

Rüdiger Urbanke, Seyed Hamed Hassani

Polar codes, invented by Arikan in 2009, are known to achieve the capacity of any binary-input memoryless outputsymmetric channel. Further, both the encoding and the decoding can be accomplished in O(N log(N)) real operations, where N is the blocklength. O ...

Ieee2014

Ultra low power design of hardware efficient CS-Based compression scheme in WBSN

David Atienza Alonso, Pierre Vandergheynst, Hossein Mamaghanian

Ultra-low power optimization is a challenging research topic in the de- sign of the sensor front-ends, especially in the area of Wireless Body Sensor Nodes (WBSN), where a limited amount of power and hardware resources are available. In this talk, I analyz ...

2014

Fast Byzantine Agreement

Rachid Guerraoui, Florian Huc

This paper presents the first probabilistic Byzantine Agreement algorithm whose communication and time complexities are poly-logarithmic. So far, the most effective probabilistic Byzantine Agreement algorithm had communication complexity and time complexit ...

2013

A Fast TCAD-based Methodology for Variation Analysis of Emerging Nano-Devices

Giovanni De Micheli, Pierre-Emmanuel Julien Marc Gaillardon, Majid Yazdani, Hassan Ghasemzadeh Mohammadi

Variability analysis of nanoscale transistors and circuits is emerging as a necessity at advanced technology nodes. Technology Computer Aided Design (TCAD) tools are powerful ways to get an accurate insight of Process Variations (PV). However ...

2013

Bayesian Early Mode Decision Technique for View Synthesis Prediction-enhanced Multiview Video Coding

Pascal Frossard, Thomas Maugey

View synthesis prediction (VSP) is a coding mode that predicts video blocks from synthesised frames. It is particularly useful in a multi-camera setup with large inter-camera distances. Adding a VSP-based SKIP mode to a standard Multiview Video Coding (MVC ...

Institute of Electrical and Electronics Engineers2013

Coding schemes for broadcast erasure channels with feedback: the two multicast case

Christina Fragouli, Efe Onaran

We consider the single hop broadcast packet erasure channel (BPEC) with two multicast sessions (each of them destined to a different group of

N

users) and regularly available instantaneous receiver ACK/NACK feedback. Using the insight gained from recent ...

2013

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Discrete stochastic heat equation driven by fractional noise

Kinematic primitives for walking and trotting gaits of a quadruped robot with compliant legs

On the Key Schedule of Lightweight Block Ciphers

Audiovisual focus of attention and its application to Ultra High Definition video compression

Universal Polar Codes

Ultra low power design of hardware efficient CS-Based compression scheme in WBSN

Fast Byzantine Agreement

A Fast TCAD-based Methodology for Variation Analysis of Emerging Nano-Devices

Bayesian Early Mode Decision Technique for View Synthesis Prediction-enhanced Multiview Video Coding

Coding schemes for broadcast erasure channels with feedback: the two multicast case

On the Key Schedule of Lightweight Block Ciphers

Discrete stochastic heat equation driven by fractional noise

Fast Byzantine Agreement

Audiovisual focus of attention and its application to Ultra High Definition video compression

Bayesian Early Mode Decision Technique for View Synthesis Prediction-enhanced Multiview Video Coding

Universal Polar Codes

A Fast TCAD-based Methodology for Variation Analysis of Emerging Nano-Devices

Coding schemes for broadcast erasure channels with feedback: the two multicast case

Ultra low power design of hardware efficient CS-Based compression scheme in WBSN

Kinematic primitives for walking and trotting gaits of a quadruped robot with compliant legs