Titlebook: Next Generation Information Technologies and Systems; 5th International Wo Alon Halevy,Avigdor Gal Conference proceedings 2002 Springer-Ver

丑恶

Cholecystokinin

招人嫉妒

Adenocarcinoma

尽责

打折

ureter

Rotator-Cuff

Answering Cooperative Recursive Queries in Web Federated Databasesads to multiple accesses to the participants of the federation. Since the components are not uniform in terms of computation power, reliability, and communication delays, it might be desirable to minimize the number of accesses to the individual databases, and to maximize the size of the obtained an

中世纪

A New Privacy Model for Web Surfingy of users. When a user requests a service on the Internet, an eavesdropper can reveal his identity, the WEB site he accesses (end server), the link between them, and infer private information about the user. The computer security community has concentrated on improving user privacy by hiding his id

micronized

Design and Implementation of a Distributed Crawler and Filtering Processoranets and large portal sites. More recently, crawlers have also been used as tools to conduct focused Web searches and to gather data about the characteristics of the WWW. In this paper, we study the employment of crawlers as a programmable, scalable, and distributed component in future Internet mid