Results 1 - 10 of 168

Conceptual Modelling of Web Sites for End-Users.

by Olga De Troyer, Tom Decruyenaere , 2000
"... Internet and the WWW more and more play an important role in our information society. It is now one of the major sources of information in every rank of our society. The overwhelming accessibility to data, on a global scale, does not necessarily translate to widespread utility of data. We often fi ..."
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find that we are drowning in data, with few tools to help managing relevant data for our various activities. In this paper, we argue that the WWW and its end-users could benefit from the existence of a conceptual web site schema. We propose such a conceptual web site schema that describes what

A vision for management of complex models

by Philip A. Bernstein, Alon Y. Levy, Rachel A. Pottinger - SIGMOD Record , 2000
"... Many problems encountered when building applications of database systems involve the manipulation of models. By “model, ” we mean a complex structure that represents a design artifact, such as a relational schema, object-oriented interface, UML model, XML DTD, web-site schema, semantic network, comp ..."
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Many problems encountered when building applications of database systems involve the manipulation of models. By “model, ” we mean a complex structure that represents a design artifact, such as a relational schema, object-oriented interface, UML model, XML DTD, web-site schema, semantic network

Extracting structured data from web pages

by Arvind Arasu - In ACM SIGMOD , 2003
"... Many web sites contain a large collection of “structured” web pages. These pages encode data from an underlying structured source, and are typically generated dynamically. An example of such a collection is the set of book pages in Amazon. There are two important characteristics of such a collection ..."
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Many web sites contain a large collection of “structured” web pages. These pages encode data from an underlying structured source, and are typically generated dynamically. An example of such a collection is the set of book pages in Amazon. There are two important characteristics of such a

Semantic Approaches to Structuring and Querying Web Sites

by E. Damiani, L. Tanca - In Proceedings of 7th IFIP Work. Conf. on Database Semantics (DS-97 , 1997
"... In order to pose effective queries to Web sites, some form of site data model must be implicitly or explicitly shared by users. Many approaches try to compensate for the lack of such a common model by considering the hypertextual structure of Web sites; unfortunately, this structure has usually litt ..."
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allows the description of data manipulation primitives via (sets of) graph(s). The WG-log description of a Web site schema is lexically based on standard hypermedia design languages, thus allowing for easy schema generation by current hypermedia authoring environments. The use of WG-log for queries

A Classifier for Schema Types Generated by Web Data Extraction Systems

by Mohammed Kayed, Awny Sayed, Marwa Hashem
"... Generating Web site schema is a core step for value-added services on the web such as comparative shopping and information integration systems. Several approaches have been developed to detect this schema. For a real web site, due to the complexity of the site schema, post process of this schema suc ..."
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Generating Web site schema is a core step for value-added services on the web such as comparative shopping and information integration systems. Several approaches have been developed to detect this schema. For a real web site, due to the complexity of the site schema, post process of this schema

Structuring and Querying the Web through Graph-Oriented Languages

by Baldi Damiani, M. Baldi, E. Damiani, F. Insaccanebbia - In Proc. of SEBD 97, SEBD Conferences , 1997
"... . In order to pose effective queries to Web sites, some form of site data model must be implicitly or explicitly shared by users. Many approaches try to compensate for the lack of such a common model by considering the hypertextual structure of Web sites; unfortunately, this structure has usually li ..."
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model of GOOD [Gys94] and G-log [Par95] allowing description of data manipulation primitives via graph transformations. WG-log description of the navigational part of a Web site schema is lexically based on standard hypermedia design languages, thus allowing for easy schema generation by current

In Search of the Lost Schema

by Stephane Grumbach , et al. - PROC. OF THE 7TH INTERNATIONAL CONFERENCE ON DATABASE THEORY , 1999
"... We study the problem of rediscovering the schema of nested relations that have been encoded as strings for storage purposes. We consider various classes of encoding functions, and consider the markup encodings, which allow to find the schema without knowledge of the encoding function, under rea ..."
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of tuples, thus leading in practice to a linear time behavior with respect to the database size for wrapping the data. Finally, we show that the proposed techniques are well-suited for practical applications, such as structuring and wrapping HTML pages and Web sites.

instances navigation for querying integrated data from web-sites

by Domenico Beneventano, Sonia Bergamaschi, Stefania Bruschi, Francesco Guerra, Mirko Orsini, Maurizio Vincini - In WEBIST 2006, Proceedings of the Second International Conference on Web Information Systems and Technologies, Setubal , 2006
"... Abstract: Research on data integration has provided a set of rich and well understood schema mediation languages and systems that provide a meta-data representation of the modeled real world, while, in general, they do not deal with data instances. Such meta-data are necessary for querying classes r ..."
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Abstract: Research on data integration has provided a set of rich and well understood schema mediation languages and systems that provide a meta-data representation of the modeled real world, while, in general, they do not deal with data instances. Such meta-data are necessary for querying classes

Extracting Logical Schema from the Web

by Vincenza Carchiolo, Alessandro Longheu, Ro Longheu, Michele Malgeri - Applied Intelligence , 2000
"... . One of the main problems arising when facing with web data is the lack of explicit structure (schema), which presence may help in understanding semantics of information. In this paper we present an approach to extract logical schema of a web-site starting from page schemas. We first define a pa ..."
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. One of the main problems arising when facing with web data is the lack of explicit structure (schema), which presence may help in understanding semantics of information. In this paper we present an approach to extract logical schema of a web-site starting from page schemas. We first define a

Adaptive web sites: Conceptual cluster mining

by Mike Perkowitz, Oren Etzioni , 1999
"... The creation of a complex web site is a thorny problem in. user interface design. In IJCAI '97, we challenged the AI community to address this problem by creating adaptive web sites. In response, we investigate the problem of index page synthesis — the automatic creation of pages that facilitat ..."
Abstract - Cited by 56 (0 self) - Add to MetaCart
The creation of a complex web site is a thorny problem in. user interface design. In IJCAI '97, we challenged the AI community to address this problem by creating adaptive web sites. In response, we investigate the problem of index page synthesis — the automatic creation of pages
Results 1 - 10 of 168