Abstract—Ontology as a concept and model description way,
is widely used in various fields, and achieved good effect.
Ontology based on intelligent Agent how to realize its definition
of the concept in Meta search engine, help system realize the
personalized, still need further research. This paper put
forward a meta search engine personalized mechanism based on
ontology with the use of the Agent technology, this mechanism
through mining user behavior of characteristics with Agent for
information retrieval, combining ontology technology set up
and update the user general view, can well reflect user current
interest and to the user's interest to the renewal of the dynamic.
Based on ontology users can also according to the user's query
scene reasoning and used in filter search results, can make the
search results to meet user needs, has the personalized. Finally,
in the intelligent Meta search engine prototype platform of the
related experimental study, results verified the feasibility of
personalized mechanism, and reached a certain degree of
intelligent effect.
Keywords: Ontology, Agent, Personalized, Meta Search Engine
I. INTRODUCTION
With the rapid development of computer technology and
network technology, Internet is becoming an integral part of
people's lives. In order to fully use the potential of the
Internet, a wealth of shared resources for further integration,
search engine by collecting a large number of Web sites to
provide a global network of resources and retrieval
mechanisms, can help people better access to the
information needed in the network. However, because of its
universal nature and the rapid growth of Web information,
search engines still can not meet different user with different
backgrounds, different purpose during the query request,
and indexed in the Internet Information subject to
increasingly severe test. the existing search engines is low
on coverage and low precision of the defect, without
considering the needs of individual users, not fully meet the
requirements of the user information quickly and
effectiveness.
Meta search engine can take advantage of multiple
members of the search engine, greatly increased search
coverage and recall rate; personalized service technology
can offer different services for different users, in order to
meet different needs, through personalized service
technology collection and analysis of user information to
learn users' interests and behavior [1], the use of
personalized service technology to the search is able to
effectively meet the individual needs when users retrieve,
find the information users are most concerned about, so that
the search engine search be improved. Meta search
personalization combines the benefits of both technologies is
an effective way to improve the existing search engine.
Agent technology is an important research direction in
artificial intelligence and software engineering, has been
widely applied. Agent used in Web information retrieval,
and provide personalized platform mechanism is based on
the Agent's own characteristics [4]: Agent autonomy makes
the Agent can take users to monitor and know by their own
decision-making mechanism to decide how to behave; Agent
learning makes the agent can learn users' interests, hobbies,
to create a user model, to further guide their
decision-making; Agent society makes the agent to
communicate with other Agent, to better serve the users.
These features of Agent application to the search engine, so
that the Agent's advantages into full play.
User personalization mechanism of intelligent retrieval
has the bright application prospect, so it attracts domestic
and foreign enterprises and research institutions to do
research actively. Especially the research on combining
ontology technology, Agent technology and personalized
Meta search to build intelligent search engine, it also has a
high research value. Many experts and scholars do some
research on this direction. In foreign countries, 1999,
literature [4] through the research on user macro demand,
put forward an meta search engine structure based on users’
demand; 2001, literature [5] proposed the intelligent agents
to achieve the meta search engine method; 2002, literature [6]
put forward to use ontology technology to record the user
search intent, and combine with Agent technology, complete
the related intelligent processing; 2008, literature [7]
establish a more detailed model on the ontology and Agent.
But at present the ontology's form there is still no consensus.
In 2010, literature [8] presents a thought which to predict the
future behavior through analysis of user behavior when
using a search engine. But these models are in the stage of
theory exploration, there is a certain distance away from
practical applications.
Ontology based User Personalization Mechanism in Meta Search Engine
LI Qing-shan
Software Engineering Institute ,
Xidian University. Xi’an China
Email: qshli@mail.xidian.edu.cn
ZOU Yan-xin
Software Engineering Institute ,
Xidian University. Xi’an China
Email: yxzou@stu.xidian.edu.cn
SUN Ying-cheng
Software Engineering Institute ,
Xidian University. Xi’an China
Email: ychsun@stu.xidian.edu.cn
2012 International Conference on Uncertainty Reasoning and Knowledge Engineering
978-1-4673-1460-2/12/$31.00 ©2012 IEEE
230