Collaborative Virtual Environments (CVE) support the collaboration, communication and social interaction among users in virtual spaces. In this paper we present a customizable CVE...
Roberto C. Portugal, Luis A. Guerrero, David A. Fu...
In prior work we have demonstrated that search engine caches and archiving projects like the Internet Archive’s Wayback Machine can be used to “lazily preserve” websites and...
Documents in the Web are often organized using category trees by information providers (e.g. CNN, BBC) or search engines (e.g. Google, Yahoo!). Such category trees are commonly kn...
Freshness has been increasingly realized by commercial search engines as an important criteria for measuring the quality of search results. However, most information retrieval met...
Abstract. With information proliferation on the Web, how to obtain highquality information from the Web has been one of hot research topics in many fields like Database, IR as well...