In semiotics, pragmatics is about purpose, context, communication and negotiation. the concept of pragmatics could be introduced into the web service technology to become the pragmatic web service. Intelligent agents ...
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ISBN:
(纸本)9780769529301
In semiotics, pragmatics is about purpose, context, communication and negotiation. the concept of pragmatics could be introduced into the web service technology to become the pragmatic web service. Intelligent agents play a vital role in this web service architecture especially for web service integration to provide better solution based on service consumers' overall requirement. In this paper, intelligent agents and are described to manage users' intention, service context, information communication and negotiation between service consumers and service providers. In addition, the agents need to be able to analyze user's requirements, construct web service abstract work flow and rank the semantic equivalent web services from the service registry. Section2 describes the research background of pragmatic web services. Section3 is about the basic structure of pragmatic web service agents and section4 concerns the agent-based web service integration.
Legacy information search systems have limitation that it does not consider semantic information but just lexical information such as keywords. A semantic web is expected to solve such limitation of present systems. I...
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ISBN:
(纸本)9780769529301
Legacy information search systems have limitation that it does not consider semantic information but just lexical information such as keywords. A semantic web is expected to solve such limitation of present systems. In constructing semantic web, an ontology is believed to be a must. However, the ontology construction is very difficult. It requires great human efforts, since the creation of individuals is a time consuming task. thus, there is a potential need for automatic or semiautomatic ontology population system, which greatly alleviates the human efforts. this paper proposes a method for an ontology population, in which the population is processed by computing the overlap between instances and concepts. this method is very simple but shows high performance.
this paper puts forward a new transaction identification algorithm (TIFRO) in web mining, which is based on forward reference object. Firstly, TIFRO uses the maximal forward reference algorithm (MFR) to get the forwar...
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ISBN:
(纸本)9780769529301
this paper puts forward a new transaction identification algorithm (TIFRO) in web mining, which is based on forward reference object. Firstly, TIFRO uses the maximal forward reference algorithm (MFR) to get the forward reference path, and then join a final object of the forward reference path to transaction set. Secondly, TIFRO starts a new transaction by judging the reference length (RL) in case of RL is longer than the maximal reference length(T-MAX). So TYRO can find the object set but not the path set of MFR. thirdly, TIFRO uses SPADE algorithm to discovery frequency patterns. Finally, we compare TIFRO with MFR in performance.
Due to the lack of word boundaries in Asian systems of writing, machine processing of these languages often, involves segmenting text into word units. this paper tests the assumption that this segmentation is a necess...
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ISBN:
(纸本)9780769529301
Due to the lack of word boundaries in Asian systems of writing, machine processing of these languages often, involves segmenting text into word units. this paper tests the assumption that this segmentation is a necessary step for authorship attribution and topic classification tasks in Chinese, and demonstrates that it is not. We show extensive results for both tasks, considering both single words and short phrases as features, and examining the effect of document length on classification accuracy. Our experiments show that a naive character bigram model of text performs as well as models generated using a state-of-the-art automatic segmenter.
this study investigates the conditions under which graphical information can support reading comprehension in a second language. this paper presents results of an experimental study in which reading comprehension of f...
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ISBN:
(纸本)9780387693101
this study investigates the conditions under which graphical information can support reading comprehension in a second language. this paper presents results of an experimental study in which reading comprehension of foreign students in two different environments was compared: vocabulary learning only vs. vocabulary and grammar plus graphic tasks. the results indicate that tasks decreasing grammatical complexities were more effective than lexical practices.
the purpose of this paper is to provide a forecast model and policy guideline for setting selection criteria for a wireless communications system, a crucial technology in BIS and BMS according to Korean case studies. ...
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ISBN:
(纸本)9780769529301
the purpose of this paper is to provide a forecast model and policy guideline for setting selection criteria for a wireless communications system, a crucial technology in BIS and BMS according to Korean case studies. Existing cases were used for reference, and a combination of tracking method and communication method was used to construct the forecast models. Each model was rated for its advantages and disadvantages, as well as selection criteria, which resulted in a policy guideline applicable to local authorities in Korea or cities overseas that are considering the introduction of BIS in their respective regions.
Question classification is the key element of question answering system(QA). It governs answer extraction range and method, and further affects entire system performance. Most question classification methods are based...
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ISBN:
(纸本)9780769529301
Question classification is the key element of question answering system(QA). It governs answer extraction range and method, and further affects entire system performance. Most question classification methods are based on pattern sets or knowledge databases. their disadvantages are that the set or database scale will become larger more and more, and need much human work. By comparing question classification with document classification, and analyzing Chinese question sentences' characters, this paper proposes a new question classification computation model, which is based on Bayes theory and takes the relations between question structures and question types into account. Experiments show that in this model, feature vector extension can reduce the negative influences of shorter question sentences and smaller corpora;and interrogative-based 2-gram can make use of question structure features to efficiently improve question classification precision.
In order to carry out e-commerce better, advanced technologies to access business information are in need urgently. An agent is described to deal withthe problems of extracting internet informationthat caused by the...
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ISBN:
(数字)9780387754949
ISBN:
(纸本)9780387754932
In order to carry out e-commerce better, advanced technologies to access business information are in need urgently. An agent is described to deal withthe problems of extracting internet informationthat caused by the non-standard and skimble-scamble structure of Chinese websites. the agent designed includes three modules which respond to the process of extracting information separately. A method of HTTP tree and a kind of Lead algorithm is proposed to generate a lead order, with which the required web can be retrieved easily. How to transform the extracted information structuralized with natural language is also discussed.
Bilingual word alignment is to find the corresponding word-level translation between the source and the target language sentences. It is widely used in the area of natural languageprocessing, like machine translation...
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ISBN:
(纸本)9780769529301
Bilingual word alignment is to find the corresponding word-level translation between the source and the target language sentences. It is widely used in the area of natural languageprocessing, like machine translation, cross-languageinformation retrieval, bilingual dictionary compilation. However, bilingual word alignment is a very difficult task involving many challenges such as morphology, syntax, semantics, human translation habits, and the inherent difference between English and Chinese. In this paper, a new algorithm is proposed By adopting a multilayered matching and disambiguation strategy, the bilingual word-alignment task is transformed to an iterative solution of anchor word-pair. the positive experimental results of 93.5% precision, 77.3% recall, and 84.2% F-score show the algorithm's effectiveness.
In Chinese information retrieval, documents are usually segmented into words and then indexed by these words. However, segmentation granularity problem (SDP) should be considered because small granularity may lead to ...
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ISBN:
(纸本)9780769529301
In Chinese information retrieval, documents are usually segmented into words and then indexed by these words. However, segmentation granularity problem (SDP) should be considered because small granularity may lead to low precision and efficiency while big granularity may cause low recall. To solve the problem, this paper proposes an intuitive and heuristic approach. Two-level index for the segmentation dictionary is built by which the original query word could be expanded with its weighted overlaid words. this method not only reserves the advantage of big granularity in precision, but also overcome its disadvantage in recall. the experimental results show that our approach slightly but consistently outperforms the baseline.
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