This paper reports on an application of Language Modeling techniques to the retrieval of Farsi documents. We discovered that Language Modeling improves the precision of retrieval when compared to a standard vector spa...
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ISBN:
(纸本)0769521088
This paper reports on an application of Language Modeling techniques to the retrieval of Farsi documents. We discovered that Language Modeling improves the precision of retrieval when compared to a standard vector space model.
MathChat is a protocol to support web-based chat sessions to simulate a classroom-type environment enabled for mathematics education. With MeML support, MathChat allows mathematics computation and display, which empow...
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ISBN:
(纸本)0769521088
MathChat is a protocol to support web-based chat sessions to simulate a classroom-type environment enabled for mathematics education. With MeML support, MathChat allows mathematics computation and display, which empowers mathematics educators to hold lectures and discussions outside the physical classroom. An online educational framework offers such advantages as more flexibility in scheduling and less apprehension to "shy" students.
Development of information systems and IT are continuously ongoing in almost every company and organisation. More and more of the IT development is performed in organisations characterised by professional work. Two st...
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ISBN:
(纸本)0769521088
Development of information systems and IT are continuously ongoing in almost every company and organisation. More and more of the IT development is performed in organisations characterised by professional work. Two studies are performed to point out two types of professions. One study is carried out at an airbase within the Swedish Air Force and one study is done in a health care organisation in Sweden. The aim of this paper is to describe and analyse the different types of the professional work in these organisations. Some implications in designing IT in different types of professional work are addressed.
In order to achieve TV program group recommendation, an approach based on fuzzy clustering is proposed for program classification in this paper. This paper firstly describes the XML based program description metadata ...
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ISBN:
(纸本)0769521088
In order to achieve TV program group recommendation, an approach based on fuzzy clustering is proposed for program classification in this paper. This paper firstly describes the XML based program description metadata representation, in which both textual and symbolic information is included. Secondly it presents the program feature extraction and presentation method. A program is defined as two vectors, one is based on term statistics implying what the program is about, and the other reflects broadcasting characteristics of the program. Then the classifying approach based on fuzzy clustering is proposed. The approach goes: normalizing original data, building fuzzy similarity matrix, and then clustering. The final fuzzy similarity matrix is constructed by combining two fuzzy similarity matrices calculated from two different aspects.
The paradigm of grid computing has been successfully applied in the domain of computationally-intensive applications supporting scientific research using server-class computers interconnected by wired network The user...
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ISBN:
(纸本)0769521088
The paradigm of grid computing has been successfully applied in the domain of computationally-intensive applications supporting scientific research using server-class computers interconnected by wired network The users of the existing and growing number of wireless mobile devices often demand more computational power than their devices can currently provide. We propose using the computational grid paradigm to build a problem-solving environment for wireless mobile devices.
This paper proposes the FULL-COVERAGE summarizer: an efficient, information retrieval oriented method to extract non-redundant sentences from text for summarization purposes. Our method leverages existing information ...
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ISBN:
(纸本)0769521088
This paper proposes the FULL-COVERAGE summarizer: an efficient, information retrieval oriented method to extract non-redundant sentences from text for summarization purposes. Our method leverages existing information Retrieval technology by extracting key-sentences on the premise that the relevance of a sentence is proportional to its similarity to the whole document. We show that our method can produce sentence-based summaries that are up to 78% smaller than the original text with only 3% loss in retrieval performance.
Latent semantic indexing is a linear data reduction technique used in informational retrieval applications. The method of principal components is a popular linear data reduction technique that has been used in many ap...
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ISBN:
(纸本)0769521088
Latent semantic indexing is a linear data reduction technique used in informational retrieval applications. The method of principal components is a popular linear data reduction technique that has been used in many applications. In this paper how the principal components method is used in information retrieval is presented, and how the latent semantic indexing is related to the principal component method is shown. Two experiments of monolingual and multilingual searches are described to show the feasibility of the method of principal components in information retrieval.
Personalization in education is supposed to be the answer to enhanced learning. Adaptive hypermedia (AH) is a means to this end. However, authoring of AH is still complicated This paper presents a system that tries to...
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ISBN:
(纸本)0769521088
Personalization in education is supposed to be the answer to enhanced learning. Adaptive hypermedia (AH) is a means to this end. However, authoring of AH is still complicated This paper presents a system that tries to tackle this problem, by allowing leveled authoring of the adaptive behavior of AH, for beginner authors as well as advanced authors. This approach allows authors to implement their own conceptions about instructional strategies, aimed at, e.g., specific learning styles.
A new technique for optimally encoding a given source statistical properties of which are described by the first-order model is introduced. The calculation of codeword lengths is based on construction of a new source ...
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ISBN:
(纸本)0769521088
A new technique for optimally encoding a given source statistical properties of which are described by the first-order model is introduced. The calculation of codeword lengths is based on construction of a new source with statistics that is determined by the consecutive redistribution of the probabilities of symbols in accordance with their original probabilities at each stage of the encoding. The proposed method performs equally well for different orders of symbol probabilities. While codewords are generated by a, separate combinatorial procedure, the overall computational cost of the proposed method is lower than that for the Huffman code.
Grid computing is a major research area with increasing impact on the business world. Substantial work has been spend on improving the grid middleware but the gap between the high expectations and available real-life ...
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ISBN:
(纸本)0769521088
Grid computing is a major research area with increasing impact on the business world. Substantial work has been spend on improving the grid middleware but the gap between the high expectations and available real-life grid applications is still remarkable. There is a significant emerging risk of creating a new hype which may result in disillusion and disappointment. Therefore, this paper emphasises the urgence of providing reliable grid-based solutions -- regardless of their scientific or commercial domain in order to get grid computing to a mature state with wide-spread acceptance. An application prototype for editing and modelling grid workflows for semiprofessionals - as part of an approach for solving this problem - and a grid job example are described.
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