We present Opal, a light-weight framework for interactively locating missing web pages (http status code 404). Opal is an example of “in vivo” preservation: harnessing the col...
We propose a method to evaluate queries using a last-resort semantic cache in a distributed Web search engine. The cache stores a group of frequent queries and for each of these qu...
Many information resources on the web are relevant primarily to limited geographical communities. For instance, web sites containing information on restaurants, theaters, and apar...
A major problem of current Web search is that search queries are usually short and ambiguous, and thus are insufficient for specifying the precise user needs. To alleviate this pro...
As the set of available Web Services expands, it becomes increasingly important to have automated tools to help identify services that match a requester's requirements. Findi...