Authors:
Fatma Zohra Lebib
1
;
Hakima Mellah
2
and
Abdelkrim Meziane
2
Affiliations:
1
University of Science and Technology Houari Boumediene, USTHB, Algiers, Algeria, Research Center in Scientific and Technical Information, CERIST, Algiers and Algeria
;
2
Research Center in Scientific and Technical Information, CERIST, Algiers and Algeria
Keyword(s):
Log Files Analysis, Web Usage Mining, Multi-source Search System, Knowledge Extraction, Information Source, User Profile.
Abstract:
In a multi-source search system, understanding users’ interests and behaviour is essential to improve the search and adapt the results according to each user profile. The interesting information characterizing the users can be hidden in large log files, whereas it must be discovered, extracted and analyzed to build an accurate user profile. This paper presents an approach which analyzes the log data of a multi-source search system using the web usage mining techniques. The aim is to capture, model and analyze the behavioural patterns and profiles of users interacting with this system. The proposed approach consists of two major steps, the first step “pre-processing” eliminates the unwanted data from log files based on predefined cleaning rules, and the second step “processing” extracts useful data on user’s previous queries. In addition to the conventional cleaning process that removes irrelevant data from the log file, such as access of multimedia files, error codes and accesses of
Web robots, deep cleaning is proposed, which analyzes the queries structure of different sources to further eliminate unwanted data. This allows to accelerate the processing phase. The generated data can be used for personalizing user-system interaction, information filtering and recommending appropriate sources for the needs of each user.
(More)