Authors:
M'hamed Mataoui
1
;
Mohamed Mezghiche
2
;
Faouzi Sebbak
3
and
Farid Benhammadi
3
Affiliations:
1
Ecole Militaire Polytechnique and M’hamed Bougara University of Boumerdes, Algeria
;
2
M’hamed Bougara University of Boumerdes, Algeria
;
3
Ecole Militaire Polytechnique, Algeria
Keyword(s):
Topic-sensitive, Query Dependent, Re-ranking Approach, XML Information Retrieval, XML links, Link Analysis Algorithms, INEX.
Related
Ontology
Subjects/Areas/Topics:
Applications
;
Business Analytics
;
Data Engineering
;
Information Retrieval
;
Ontologies and the Semantic Web
;
Pattern Recognition
;
Semi-Structured and Unstructured Data
;
Software Engineering
Abstract:
In this paper, we propose a new evidential link-based approach for re-ranking XML retrieval results. The
approach, based on Dempster-Shafer theory of evidence, combines, for each retrieved XML element, content
relevance evidence, and computed link evidence (score and rank). The use of the Dempster–Shafer theory is
motivated by the need to improve retrieval accuracy by incorporating the uncertain nature of both bodies of
evidence (content and link relevance). The link score is computed according to a new link analysis algorithm
based on weighted links, where relevance is propagated through the two types of links, i.e., hierarchical and
navigational. The propagation, i.e. the amount of relevance score received by each retrieved XML element,
depends on link weight which is defined according to two parameters: link type and link length. To evaluate
our proposal we carried out a set of experiments based on INEX data collection.