WWW Data Source Selection with SQLfi

Gonçalves, Marlene; Tineo, Leonid

doi:10.1109/fuzzy.2005.1452531

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…In [9], we have proposed solving the problem of Data Source Selection in Web as an application of SQLf, using SQLfi Server. Nevertheless, this previous work was just a proposal without a real implementation.…”

Section: The Egloo Fuzzy Web Data Source Selection Toolmentioning

confidence: 99%

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The Egloo Fuzzy Web Data Source Selection Tool

Gonçalves¹,

Tineo²

2007

18th International Conference on Database and Expert Systems Applications (DEXA 2007)

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The WWW is a very large repository composed of many documents that are stored by several data sources. Web search engines allow retrieval based on keywords. Nevertheless, published documents may be incomplete, obsolete or huge. Therefore, search also might include quality criteria such as completeness, recentness, update frequency, and granularity. Traditional DBMS rigidity does not allow the expression of user preferences based on soft criteria. Fuzzy DBMS, such as SQLfi, are necessary instead. Here we present a tool for the selection of the best data sources and documents in terms of user preferences. Documents and data sources would be described according to quality parameters stored in a catalog. Retrieval would be done by means of fuzzy SQLf queries. Our tool offers a user-oriented wizard to allow the expression of requirements.

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Section: The Egloo Fuzzy Web Data Source Selection Toolmentioning

confidence: 99%

“…It contains metadata describing data sources, documents and links. We have extended Catalog schema presented in [9]. In our new relational schema, both documents and data sources have quality parameters.…”

Section: Catalog Descriptionmentioning

confidence: 99%

The Egloo Fuzzy Web Data Source Selection Tool

Gonçalves¹,

Tineo²

2007

18th International Conference on Database and Expert Systems Applications (DEXA 2007)

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“…But, none of these previous works have incorporated fuzzy features. Finally, Goncalves and Tineo (2005) proposed solving Web data source selection problem by means of SQLfi use. A SQLf query has the following syntax:…”

Section: Related Work and Backgroundmentioning

confidence: 99%

A Web Tool for Web Document and Data Source Selection With Sqlfi

Gonçalves¹,

Tineo²

2007

Proceedings of the Ninth International Conference on Enterprise Information Systems

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WWW is composed of a great volume of documents that are stored by several data sources. Normally, a user is interested in those documents that include certain keywords. However, these documents might be incomplete, ancient or huge, and therefore, the user would have to discard irrelevant ones. An ideal Web search tool might select the best documents in base on user criteria defined over quality parameters such as completeness, recentness, frequency of updates and granularity. Traditional query languages are very restrictive in expressing preference-based queries. Therefore new query languages, such as SQLf, are needed. We present a tool that allows the selection of the best data sources and documents in terms of user preferences. Documents and data sources are described according to quality parameters. User preferences are expressed by means of SQLf queries. Our tool contains a wizard to retrieve the best documents and data sources. Thus, the user is oriented by a set of steps where a preference query that involves quality parameters is built easily.

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Incorporating Knowledge into e-Commerce Automated Negotiation

Gonçalves

Tineo

2007

18th International Conference on Database and Expert Systems Applications (DEXA 2007)

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WWW Data Source Selection with SQLfi

Cited by 4 publications

References 13 publications

The Egloo Fuzzy Web Data Source Selection Tool

The Egloo Fuzzy Web Data Source Selection Tool

A Web Tool for Web Document and Data Source Selection With Sqlfi

Incorporating Knowledge into e-Commerce Automated Negotiation

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