Advisor | Tabrizi, M. H. N. | en_US |
Author | Darabi, Majid | en_US |
Date Accessioned | 2013-08-24T18:30:08Z | |
Date Available | 2014-10-01T14:45:52Z | |
Date of Issue | 2013 | en_US |
Identifier (URI) | http://hdl.handle.net/10342/4228 | |
Description | With the proliferation of documents on the Internet, it has become increasingly difficult for users to search and retrieve the information they want: information that is relevant and interesting. To address this problem, researchers have adopted personalized services and filtering systems that rely on user preferences. In this thesis, we present a novel method to model user interests automatically and generate a ranked list of preferences for each user in real time. The proposed framework here consists of three main steps to automatically model user preferences and generate a ranked list of the user's interests in real time. 1) Through the use of WordNet, a list of keywords which represent explicit interests is extracted from a text document and then implicit user preferences are determined by employing domain ontology. 2) A hierarchical data structure for each user stores interests and is updated for each new document read by that user. Additionally, there is a queue of recently accessed interests for each user that maintains these preferences based upon arrival time. 3) The final step includes generating a ranked list of top K interests for each user in real time. This ranking system employs the user model to create a combined list of both short-term and long-term interests. The results show significant improvement over some widely used methods. | en_US |
Extent | 47 p. | en_US |
Format Medium | dissertations, academic | en_US |
Language | | en_US |
Publisher | East Carolina University | en_US |
Subject | Computer science | en_US |
Subject | Data mining | en_US |
Subject | Information retrieval | en_US |
Subject | Learning to rank | en_US |
Subject | Profile model | en_US |
Subject | User interest | en_US |
Subject | User model | en_US |
Library of Congress Subject Headings | Internet searching | |
Library of Congress Subject Headings | Internet users | |
Library of Congress Subject Headings | Information storage and retrieval systems | |
Title | UInterestManager : A Generic Framework to Model User Interests | en_US |
Type | Master's Thesis | en_US |
Department | Computer Science | en_US |
Degree | M.S. | en_US |