نتایج جستجو برای: continuous modeling
تعداد نتایج: 638979 فیلتر نتایج به سال:
Models of industrial processes often contain discrete phenomena superimposed on the continuous system behavior. Simulation of batch processes, start-up and shutdown procedures, fault diagnosis and alarms fall under this category. Models for such processes require a mathematical theory for both its continuous and discrete state transitions. A key problem in hybrid simulation lies in the detectio...
The movement of landmarks on the human face can be recorded in 3D using motion capture equipment. We describe methods for the analysis of data collected on groups of subjects with a view to describing and assessing the differences between the facial motions of those groups. We focus on the smile motion in particular. The methods presented can be used more generally for continuous shape change d...
1. Introduction Minimizing costs and maximizing coverage are common goals in many planning contexts. Examples include locating fire stations to guarantee immediate response to calls for service, placing emergency warning sirens to alert the public of impending danger, or siting cellular towers to allow widespread access of wireless broadband. To support these planning problems, spatial optimiza...
We propose the stochastic lexicon model which represents the pronunciation variations to optimally cope with the continuous speech recognizer. In this lexicon model, the baseform of words are represented by subword states and probability distribution of subwords as hidden Markov model. Also, proposed approach can be applied to system employing non-linguistic recognition units and lexicon is aut...
Caching is one of the most important schemes for improving the performance of continuous media servers. Continuous object caching enables a server to support more clients simultaneously since it reduces the disk load imposed at each round. But, without a quan-tative analysis of the disk load reduction induced by caching, the caching eeect can not be reeected in the admission control scheme, whi...
Selecting an appropriate mathematical model to describe the dynamical behavior of a genetic regulatory network plays an important part in discovering gene regulatory mechanisms. Whereas fine-scale models can in principle provide a very accurate description of the real genetic regulatory system, one must be aware of the availability and quality of the data used to infer such models. Consequently...
Phone durations play a significant part in the comprehension of speech. The duration information is still mostly disregarded in automatic speech recognizers due to the use of hidden Markov models (HMMs) which are deficient in modeling phone durations properly. Previous results have shown that using different approaches for explicit duration modeling have improved the isolated word recognition i...
An essential problem in developing concentric-tube continuum robots is to determine the shape of the robot, which is dependent on robot structure and external load. A comprehensive model that takes into considerations of influencing factors is hence required. In this work, the shape modeling of a type of concentric-tube continuum robot built with a collection of super-elastic NiTiNol tubes is s...
In the modeling of continuous time systems, there is a need to convert the analog system to a discrete time system. The transform frequently encountered in the literature is the impulse invariant transform. This transform has proven to be inadequate for biological system modeling. In this paper we will review the available linear transforms and derive three new transforms, namely the centered s...
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