Lukas C. Faulstich, Myra Spiliopoulou, "Building HyperView Wrappers for Publisher Web-sites", Intl' Journal on Digital Libraries (special issue "In the Tradition of Alexandrian Scholars"), Vol. 3, NO. 1, pp. 3--18, 2000.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....service to the human users. Because users tolerate only limited wait times or only a limited number of links to follow, the challenge in query processing is efficiency. Many wrapper approaches hide technical details of the services, i.e. they expand the necessary links within the wrappers [18]. Information splitting can only implicitly be recognized by long time delays. Therefore, this kind of intelligent black box wrappers are not suitable for this approach. Here, wrappers are limited to the mapping between local and global attributes. Metadata on the services. In order to compute ....

Faulstich, L., Spiliopoulou, M.: Building HyperView wrappers for publisher Web sites. In: Int. Journal on Digital Libraries, 3(1), p. 3-18, 2000.

....dimensions: active vs. passive, and proprietary vs. standard. Active providers notify the alerting system on new available publications, typically by e mail. Passive providers are monitored on a regular basis to detect new publications, for instance by using HyperView wrappers for their Web sites [FS00] A promising standard for passive providers is the OAI metadata harvesting protocol. HERMES includes a generic wrapper for arbitrary OAI compliant information providers. Another HERMESwrapper is responsible for harvesting the bibliographic databases offered by the DEMETRIOS federation service, ....

Lukas C. Faulstich and Myra Spiliopoulou. Building HyperView wrappers for publisher web-sites. International Journal on Digital Libraries, 3(1):3--18, 2000.

....of a wrapper. Several approaches such as [2, 3, 11] use regular expression matching on HTML documents. However, regular expressions are not very robust with respect to layout variations and structural changes that occur frequently in Web sites. Rule based approaches such as YAT [6] or HyperView [9] that operate on syntax trees of HTML documents provide a higher robustness. The HyperView system that is used in the Hermes project supports the maintenance of wrappers by using a multi layered approach to separate the concerns of data extraction and data conversion. The main contribution of ....

....of the Darwin AS 13 can subscribe to receive an E mail notification whenever a new issue of a particular journal appears. Passive providers do not o#er such a service and have to be queried for new material in a scheduled manner. An algorithm to optimize the query scheduling is introduced in [9]. Additionally, providers can be cooperative or non cooperative. Cooperative providers provide their information in one of the standard formats that can be handled automatically by Hermes, and they implement at least one of the protocols supported by Hermes. Non cooperative providers o#er their ....

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L. C. Faulstich and M. Spiliopoulou. Building HyperView wrappers for publisher web-sites. International Journal on Digital Libraries, 3(1):3--18, 2000.

....of the site, and when dynamic adjustment should be preferred. 4.2 Applying annotation rules with the HyperView system We adapt the Web site linkage to the annotation rules by coupling the original web site with a proxy server that applies those rules. As proxy server we use the HyperView system [7, 8] coupled with a metadata server that maintains the annotation rules. This architecture is depicted in Fig. 2. We can see that the original site is left unchanged. WUM is used to discover the navigation patterns reAEecting the behaviour for customers and non customers in the site. The patterns are ....

Lukas C. Faulstich and Myra Spiliopoulou. Building HyperView wrappers for publisher websites. In 2nd European Conf. on Digital Libraries (ECDL'98), LNCS 1513, Heraclion, Greece, Sept. 1998. Springer Verlag. Extended version to appear in the IJODL Special Issue iIn the Tradition of Alexandrian Scholarsj.

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Lukas C. Faulstich, Myra Spiliopoulou, "Building HyperView Wrappers for Publisher Web-sites", Intl' Journal on Digital Libraries (special issue "In the Tradition of Alexandrian Scholars"), Vol. 3, NO. 1, pp. 3--18, 2000.

No context found.

Lukas C. Faulstich, Myra Spiliopoulou, "Building HyperView Wrappers for Publisher Web-sites", Proc. of 2nd European Conf. on Digital Libraries (ECDL'98), Heraclion (September 1998.

No context found.

Lukas C. Faulstich, Myra Spiliopoulou, "Building HyperView Wrappers for Publisher Web-sites", Intl' Journal on Digital Libraries (special issue "In the Tradition of Alexandrian Scholars"), Vol. 3, NO. 1, pp. 3--18, 2000.

No context found.

Lukas C. Faulstich, Myra Spiliopoulou, "Building HyperView Wrappers for Publisher Web-sites", Proc. of 2nd European Conf. on Digital Libraries (ECDL'98), Heraclion (September 1998.

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