VLDB
1994
ACM
14 years 4 months ago
1994
ACM
We describe the integration of a structuredtext retrieval system (TextMachine) into an object-oriented database system (OpenODB). We use the external function capability of the da...
VLDB
1994
ACM
14 years 4 months ago
1994
ACM
As video data is penetrating many information systems the need for database support for video data evolves. In this paper we present a generic data model that captures the structu...
ADC
1994
Springer
14 years 4 months ago
1994
Springer
We present a proposed query language for extended entity relationship schemas. The language improves on previous proposals by using only concepts explicitly in a given schema. It ...
SIGMOD
1996
ACM
14 years 4 months ago
1996
ACM
While much recent research has focussed on extending databases beyond the traditional relational model, relatively little has been done to develop database tools for querying data...
ADBIS
1997
Springer
14 years 4 months ago
1997
Springer
A graphical formalized language is proposed for specifying systems of views over database schemas. The language is based on the notion of arrow (mapping) between data schemas and ...
VLDB
1999
ACM
14 years 4 months ago
1999
ACM
Motivated to a large extent by the substantial and growing prominence of the World-Wide Web and the potential benefits that may be obtained by applying database concepts and tech...
ICDT
1999
ACM
14 years 4 months ago
1999
ACM
Abstract. In this paper we present a new approach for studying aggregations in the context of database query languages. Starting from a broad de nition of aggregate function, we ad...
DBPL
1999
Springer
14 years 4 months ago
1999
Springer
Semistructured databases are treated as dynamically typed: they come equipped with no independent schema or type system to constrain the data. Query languages that are designed fo...
PODS
1999
ACM
14 years 4 months ago
1999
ACM
Semistructured data occur in situations where information lacks a homogeneous structure and is incomplete. Yet, up to now the incompleteness of information has not been re ected b...
COOPIS
1999
IEEE
14 years 4 months ago
1999
IEEE
The Web so far has been incredibly successful at delivering information to human users. So successful actually, that there is now an urgent need to go beyond a browsing human and ...