We analyze the problem of detecting a road target in background clutter and investigate the amount of prior (i.e. target speciic) knowledge needed to perform this search task. The problem is formulated in terms of Bayesian inference and we deene a Bayesian ensemble of problem instances. This formulation implies that the performance measures of diierent models depend on order parameters which ch...

In many fields of science including population dynamics, the vast state spaces inhabited by all but the very simplest of systems can preclude a deterministic analysis. Here, a class of approximate deterministic models is introduced into the field of epidemiology that reduces this state space to one that is numerically feasible. However, these reduced state space master equations do not in gener...

We discuss two named-entity recognition models which use characters and character -grams either exclusively or as an important part of their data representation. The first model is a character-level HMM with minimal context information, and the second model is a maximum-entropy conditional markov model with substantially richer context features. Our best model achieves an overall F of 86.07% on...

Gidi Kroon University of Twente, MESA Research Institute, P.O. Box 217, 7500 AE Enschede, The Netherlands tel. +31 (0)53 489 4394 fax. +31 (0)53 489 2799 [email protected] Abstract|In this article pin-compatible, also known as fully-simulatable, behavioural models are discussed that can replace a transistor level circuit in a simulation. Note that speci cally not the existing AC-only mode...

Test methodologies for large embedded systems fail to reflect the test process as a whole. Instead, the test process is divided into independent test levels featuring differences like the functional abstraction levels, but also similarities such as many functional test cases. Desirable instruments such as test front-loading feature a considerable test effort and test cost reduction potential, b...

TODD A. DELONG BARRY W. JOHNSON Universiiy of Virginia JOSEPH A. PROFETA 111 Union Switch and Signal, Inc. AS EARLY AS THE 1960~, designers recognized the importance of incorporating fault tolerance into microelectronic designs. However, they often performed this task late in the process when the design was near completion. As computer systems become more complex, designers must consider fault ...

In this paper I propose new continuous and discrete choice demand models. To do so, I note that existing demand models from the continuousand discrete-choice demand literatures each have distinct advantages for taking to market-level data. I attempt to build models with the union of the good properties of each literature. For instance, the continuous choice models are more appropriate for disag...

A number of viewpoints on how a cell can be modelled are discussed in this paper in light of the ability it has to process information. The paper begins with a very brief summary of four general types of computation: sequential, parallel, distributed, and emergent. These form the general framework from which a number of comparisons are made. Several metaphors are introduced to enable reflection...

SystemC is a popular language used in modeling systemon-chip implementations. To support this task at a high level of abstraction, transaction-level modeling (TLM) libraries have been recently developped. While TLM libraries are useful, it is difficult to capture the reactive nature of certain transactions with the constructs currently available in the SystemC and TLM libraries. In this paper, ...

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