SIGIR'98 papers: DOLORES: A System for Logic-Based Retrieval of Multimedia Objects
DOLORES: A System for Logic-Based Retrieval of Multimedia Objects
Norbert Fuhr
Department of Computer Science,
University of Dortmund,
D-44221 Dortmund, Germany.
Norbert Gövert
Department of Computer Science,
University of Dortmund,
D-44221 Dortmund, Germany.
Thomas Rölleke
Department of Computer Science,
University of Dortmund,
D-44221 Dortmund, Germany.
Abstract
We describe the design and implementation of a system for logic-based
multimedia retrieval. As high-level logic for retrieval of hypermedia
documents, we have developed a probabilistic object-oriented logic
(POOL) which supports aggregated objects, different kinds of
propositions (terms, classifications and attributes) and even rules as
being contained in objects. Based on a probabilistic four-valued
logic, POOL uses an implicit open world assumption, allows for closed
world assumptions and is able to deal with inconsistent knowledge.
POOL programs and queries are translated into probabilistic Datalog
programs which can be interpreted by the HySpirit inference
engine. For storing the multimedia data, we have developed a new basic
IR engine which yields physical data abstraction. The overall
architecture and the flexibility of each layer supports logic-based
methods for multimedia information retrieval.
SIGIR'98
24-28 August 1998
Melbourne, Australia.
sigir98@cs.mu.oz.au.