نتایج جستجو برای: joint typicality decoder

تعداد نتایج: 200824  

2013
Lukas Drescher Omar Fawzi Renato Renner

We consider the multiparty typicality conjecture raised by Dutil from a one-shot perspective. Asking for a multipartite state close to the state of the system that is typical on different subsystems simultaneously, this conjecture serves as a placeholder for the general difficulty to transfer the concept of classical joint typicality to the quantum setting. In this work, we reformulate the mult...

Journal: :IEEE Trans. Communications 2003
K. P. Subbalakshmi Jacques Vaisey

We propose an optimal joint source-channel maximum a posteriori probability decoder for variable-length encoded sources transmitted over a wireless channel, modeled as an additive-Markov channel. The state space introduced by the authors in a previous paper is used to take care of the unique challenges posed by variable-length codes. Simulations demonstrate that this decoder performs substantia...

Journal: :Journal of vision 2014
Justin T Maxfield Westri D Stalder Gregory J Zelinsky

The role of target typicality in a categorical visual search task was investigated by cueing observers with a target name, followed by a five-item target present/absent search array in which the target images were rated in a pretest to be high, medium, or low in typicality with respect to the basic-level target cue. Contrary to previous work, we found that search guidance was better for high-ty...

Journal: :British journal of psychology 2012
Janneke Blijlevens Claus-Christian Carbon Ruth Mugge Jan P L Schoormans

Theories differ on how typicality and arousal influence aesthetic appraisal and whether these processes together interact or have independent effects on aesthetic appraisal. This research investigates the simultaneous effects of typicality and arousal on aesthetic appraisal for product designs by manipulating both processes separately: typicality by prototype deviation and arousal by colour sat...

2012
Liang Zhao

In this paper, we proposed a novel receiver algorithm for coherent underwater acoustic communications. The proposed receiver is composed of three parts: (1) Doppler tracking and correction, (2) Time reversal channel estimation and combining, and (3) Joint iterative equalization and decoding (JIED). To reduce computational complexity and optimize the equalization algorithm, Time reversal (TR) ch...

2011
Orly Shenker

Recently it has been argued that typicality considerations play a crucial explanatory role in deterministic theories in physics (e.g. classical statistical mechanics and Bohmian mechanics). In this approach a sharp distinction is made between typicality and probability. We analyze in this paper the relation between the notion of typicality and probability, the question of the choice of measure ...

2009
Katarina Britz Johannes Heidema Thomas Andreas Meyer

We present a semantic model of typicality of concept members in description logics that accords well with a binary, globalist cognitive model of class membership and typicality. We define a general preferential semantic framework for reasoning with object typicality in description logics. We propose the use of feature vectors to rank concept members according to their defining and characteristi...

2005
Shriram Sarvotham Dror Baron Richard G. Baraniuk

Classical coding schemes that rely on joint typicality (such as Slepian-Wolf coding and channel coding) assume known statistics and rely on asymptotically long sequences. However, in practice the statistics are unknown, and the sequences are of finite length n. In this finite regime, we must allow a non-zero probability of coding error and also pay a penalty by transmitting extra bits. The pena...

2015
Neri Merhav

The likelihood decoder is a stochastic decoder that selects the decoded message at random, using the posterior distribution of the true underlying message given the channel output. In this work, we study a generalized version of this decoder where the posterior is proportional to a general function that depends only on the joint empirical distribution of the output vector and the codeword. This...

2017
Alessandra Zarcone Ken McRae Alessandro Lenci Sebastian Padó

Complement coercion (begin a book →reading) involves a type clash between an event-selecting verb and an entity-denoting object, triggering a covert event (reading). Two main factors involved in complement coercion have been investigated: the semantic type of the object (event vs. entity), and the typicality of the covert event (the author began a book →writing). In previous research, reading t...

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