This paper presents an algorithm that permits the identification of apneas - cessations in the sleeping patient's respiratory flow - in the respiratory airflow signal and relates them to the drops in blood oxyhemo...
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This paper presents an algorithm that permits the identification of apneas - cessations in the sleeping patient's respiratory flow - in the respiratory airflow signal and relates them to the drops in blood oxyhemoglobin saturation that they produce. The structural nature of the algorithm allows us to perform a detailed characterization of the identified events and to easily modify the morphological detection criteria. This proposal is based on the fuzzy set theory for the representation and manipulation of the vagueness of the medical knowledge on which it is based, and on the constraint satisfaction problem formalism to provide a computable support to medical knowledge.
Pervasive Augmented Reality Gaming and Mobile P2P are both attracting significant focus and much progress has occurred recently. Augmented reality games extend reality with virtual elements to enhance game experience ...
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The recent emergence of wireless mesh networks as a quick and inexpensive way to access the Internet has gained attention in the networking field. While using multiple radios improves network throughput, it undermines...
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Success in the open source software world has been measured in terms of metrics such as number of downloads, number of commits, number of lines of code, number of participants, etc. These metrics tend to discriminate ...
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The approaches for extraction and representation of knowledge from textual user requirements could be summarized in two groups: i) when we have in mind an end model and seek, mine and represent knowledge for it. In sh...
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ISBN:
(纸本)9781601320254
The approaches for extraction and representation of knowledge from textual user requirements could be summarized in two groups: i) when we have in mind an end model and seek, mine and represent knowledge for it. In short, this approach can be defined as "knowledge driven from a target model";ii) when we have in mind knowledge in a text, and seek an appropriate model to represent it. The intermediate model obtained in this manner can be processed further, to achieve another kind of end model. We define this approach as "model driven from source knowledge". This paper presents an approach of the second kind, for analyzing textual user requirements and extraction and representation of knowledge as a graphical requirement engineering (RE) model - Use Case Paths.
The challenge in the creation of RE/SE (Requirements engineering/softwareengineering) models automatically from NL (Natural Language) description of requirements is to discover the knowledge model within the language...
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ISBN:
(纸本)9780889867055
The challenge in the creation of RE/SE (Requirements engineering/softwareengineering) models automatically from NL (Natural Language) description of requirements is to discover the knowledge model within the language model. In this article, we present a new approach for analyzing and processing these two models. Our approach combines two technologies: The first is NLP (Natural Language Processing) which we use to construct a graphical model of the language and of the knowledge it simultaneously carries within it. Once the model has been built, we can extract structural analogies with a DM (Domain Model). The second is FCA (Formal Concept Analysis), with which we process these structures. FCA helps us in two ways: as an analytical tool to formalize the concepts, and as a technology to structure and visualize them. A case study is provided to demonstrate the applicability of our approach.
This article describes graphical language for the representation of textual user requirements. We need such a language in order to approach the automatic construction of graphical softwareengineering (SE) models (in ...
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Modern softwareengineering practices lead to large models which exist in many versions. Version management systems should offer a service to compare, and possibly merge, these models. The computation of a difference ...
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ISBN:
(纸本)9781595938114
Modern softwareengineering practices lead to large models which exist in many versions. Version management systems should offer a service to compare, and possibly merge, these models. The computation of a difference between large models is a big challenge;current algorithms are too inefficient here. We present a new technique for computing differences between models. In practical tests, this technique has been an order of magnitude faster than currently known algorithms. The main idea is to use a high-dimensional search tree for efficiently finding similar model elements. Individual elements are mapped onto a vector of numerical values using a collection of metrics for models and a numerical representation of the names which occur in a model. Copyright 2007 ACM.
There has been an increased interest in recent years to incorporate uncertainty in Description Logics (DLs), and a number of proposals have been put forward for modeling uncertainty in DL frameworks. While much progre...
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This paper presents the ARTS (Agent-oriented Robust Transactional System) model, which applies transaction concepts to provide agent developers with high-level support for agent system robustness and reliability. ARTS...
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