The paper presents a new model of query and computation on the Web. We focus on two important aspects that distinguish the access to Web data from the access to a standard database system: the navigational nature of the access and the lack of concurrency control. We show that these two issues have significant effect on the computability of queries. To illustrate the ideas and how they can be used in practice for designing appropriate Web query languages, we consider a particular query language, the Web calculus, an abstraction and extension of the practical Web query language WebSQL.
|Number of pages||10|
|State||Published - 1997|
|Event||Proceedings of the 1997 16th ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems - Tucson, AZ, USA|
Duration: 12 May 1997 → 14 May 1997
|Conference||Proceedings of the 1997 16th ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems|
|City||Tucson, AZ, USA|
|Period||12/05/97 → 14/05/97|