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Managing data from knowledge basesqu...

Sheng, Quan Z.

Managing data from knowledge basesquerying and extraction /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Managing data from knowledge basesby Wei Emma Zhang, Quan Z. Sheng.
其他題名:	querying and extraction /
作者:	Zhang, Wei Emma.
其他作者:	Sheng, Quan Z.
出版者:	Cham :Springer International Publishing :2018.
面頁冊數:	xiii, 139 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
標題:	Databases.
電子資源:	http://dx.doi.org/10.1007/978-3-319-94935-2
ISBN:	9783319949352$q(electronic bk.)

Managing data from knowledge basesquerying and extraction /
Zhang, Wei Emma.

Managing data from knowledge basesquerying and extraction /[electronic resource] :by Wei Emma Zhang, Quan Z. Sheng. - Cham :Springer International Publishing :2018. - xiii, 139 p. :ill., digital ;24 cm.

1 Introduction -- 2 Cache Based Optimization for Querying Curated Knowledge Bases -- 3 Query Performance Prediction on Knowledge Base -- 4 An Efficient Knowledge Clustering Algorithm -- 5 Knowledge Extraction from Unstructured Data on the Web -- 6 Building Knowledge Bases from Unstructured Data on the Web -- 7 Conclusion.

In this book, the authors first address the research issues by providing a motivating scenario, followed by the exploration of the principles and techniques of the challenging topics. Then they solve the raised research issues by developing a series of methodologies. More specifically, the authors study the query optimization and tackle the query performance prediction for knowledge retrieval. They also handle unstructured data processing, data clustering for knowledge extraction. To optimize the queries issued through interfaces against knowledge bases, the authors propose a cache-based optimization layer between consumers and the querying interface to facilitate the querying and solve the latency issue. The cache depends on a novel learning method that considers the querying patterns from individual's historical queries without having knowledge of the backing systems of the knowledge base. To predict the query performance for appropriate query scheduling, the authors examine the queries' structural and syntactical features and apply multiple widely adopted prediction models. Their feature modelling approach eschews the knowledge requirement on both the querying languages and system. To extract knowledge from unstructured Web sources, the authors examine two kinds of Web sources containing unstructured data: the source code from Web repositories and the posts in programming question-answering communities. They use natural language processing techniques to pre-process the source codes and obtain the natural language elements. Then they apply traditional knowledge extraction techniques to extract knowledge. For the data from programming question-answering communities, the authors make the attempt towards building programming knowledge base by starting with paraphrase identification problems and develop novel features to accurately identify duplicate posts. For domain specific knowledge extraction, the authors propose to use clustering technique to separate knowledge into different groups. They focus on developing a new clustering algorithm that uses manifold constraint in the optimization task and achieves fast and accurate performance. For each model and approach presented in this dissertation, the authors have conducted extensive experiments to evaluate it using either public dataset or synthetic data they generated.

ISBN: 9783319949352$q(electronic bk.)

Standard No.: 10.1007/978-3-319-94935-2doiSubjects--Topical Terms:

218042
Databases.

LC Class. No.: QA76.9.D343

Dewey Class. No.: 005.74

Managing data from knowledge basesquerying and extraction /
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505 0 $a 1 Introduction -- 2 Cache Based Optimization for Querying Curated Knowledge Bases -- 3 Query Performance Prediction on Knowledge Base -- 4 An Efficient Knowledge Clustering Algorithm -- 5 Knowledge Extraction from Unstructured Data on the Web -- 6 Building Knowledge Bases from Unstructured Data on the Web -- 7 Conclusion.
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