Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download

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Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download

Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download. Data management comprises all the disciplines related to managing data as a valuable resource of knowledge. This volume is focusing on its recent advances in five major directions: Information Retrieval & Web Intelligence, Knowledge Discovery, Information Integration & Data Security, Intelligent Agents, and Data Management in Medical Domain. The first part of the book contains five contributions in the area of Information Retrieval & Web Intelligence. The chapter, written by P. Kolaczkowski and Henryk Rybinski, presents a novel approach to solving Index Selection Problem, a well known problem in the database area. Opposite to other known approaches, the method searches the space of possible query execution plans, instead of searching the space of index configurations.

Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download

The space is searched by an evolutionary algorithm, and as a result the set of indexes used by the best query execution plans is obtained. The algorithm converges to the optimal solution, as opposite to greedy heuristics, which for performance reasons tend to reduce the space of candidate solutions, possibly discarding optimal solutions. Although the search space is very large and grows exponentially with the size of input workload, searching the space of the query plans allows to direct more computational power to the most costly plans, thus yielding very fast convergence to ”good enough” solutions.

Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download

In the Chapter titled “Integrated Retrieval from Web of Documents and Data”, K. Thirunarayan and T. Immaneni present a unified web model that integrates the HTML Web and the Semantic Web, formalizing the connection between them. Their hybrid query language to retrieve documents and data improves recall for legacy documents and provides keyword-based search capability for the semantic web. The prototype system SITAR implements their approach inlcuding the novel wordset pair queries. The third chapter, written by S. Zadrozny and J. Kacprzyk, concerns the difficulty of expressing user requirements (information needs) in standard query languages. Authors show how the use of fuzzy logic makes possible to model and properly process linguistic terms in queries.

Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download

They look at various ways of how to understand bipolarity in database querying, propose fuzzy counterparts of some crisp approaches and study their properties. In the next chapter, T. Andreasen and H. Bulskov present an approach where conceptual summaries are provided through a conceptualization as given by ontology. The idea is to restrict a background ontology to the set of concepts that appear in the text to be summarized and the same provide a structure, called instantiated ontology, that is specific to the domain of the text and can be used to condense to a summary not only quantitatively but also it conceptually covers the subject of the text.

Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download

The fifth chapter is written byY. Yao and N. Zhong and concerns the World Wide Web which due to its huge scale and complexity, one may find extremely difficult to search for simple theories and models for explaining it. Clearly, more complicated theories and methodologies are needed, so that the Web can be examined from various perspectives. There are two purposes of this chapter. One is to present an overview of the triarchic theory of granular computing, and the other is to examine granular computing perspectives on Web Intelligence (WI). The second part of the book contains four contributions in the area of Knowledge Discovery.

Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download

Advances in Data Management by Zbigniew W. Ras and Agnieszka Dardzinska pdf free download


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