Context-awareness for adaptive information retrieval systems
Philosophiae Doctor - PhD === This research study investigates optimization of IRS to individual information needs in order of relevance. The research addressed development of algorithms that optimize the ranking of documents retrieved from IRS. In this thesis, we present two aspects of context-awar...
Main Author: | |
---|---|
Language: | en |
Published: |
University of the Western Cape
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/11394/3845 |
id |
ndltd-netd.ac.za-oai-union.ndltd.org-uwc-oai-etd.uwc.ac.za-11394-3845 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-netd.ac.za-oai-union.ndltd.org-uwc-oai-etd.uwc.ac.za-11394-38452017-08-02T04:00:39Z Context-awareness for adaptive information retrieval systems Agbele, Kehinde Kayode Information retrieval (IR) Context awareness Interactive reinforcement learning (IRL) Relevance Parameters optimization Performance measures Contextual information Personalization Clustering Evolutionary algorithm Philosophiae Doctor - PhD This research study investigates optimization of IRS to individual information needs in order of relevance. The research addressed development of algorithms that optimize the ranking of documents retrieved from IRS. In this thesis, we present two aspects of context-awareness in IR. Firstly, the design of context of information. The context of a query determines retrieved information relevance. Thus, executing the same query in diverse contexts often leads to diverse result rankings. Secondly, the relevant context aspects should be incorporated in a way that supports the knowledge domain representing users’ interests. In this thesis, the use of evolutionary algorithms is incorporated to improve the effectiveness of IRS. A context-based information retrieval system is developed whose retrieval effectiveness is evaluated using precision and recall metrics. The results demonstrate how to use attributes from user interaction behaviour to improve the IR effectiveness 2014-11-14T06:53:28Z 2014-11-14T06:53:28Z 2014 Thesis http://hdl.handle.net/11394/3845 en University of the Western Cape University of the Western Cape |
collection |
NDLTD |
language |
en |
sources |
NDLTD |
topic |
Information retrieval (IR) Context awareness Interactive reinforcement learning (IRL) Relevance Parameters optimization Performance measures Contextual information Personalization Clustering Evolutionary algorithm |
spellingShingle |
Information retrieval (IR) Context awareness Interactive reinforcement learning (IRL) Relevance Parameters optimization Performance measures Contextual information Personalization Clustering Evolutionary algorithm Agbele, Kehinde Kayode Context-awareness for adaptive information retrieval systems |
description |
Philosophiae Doctor - PhD === This research study investigates optimization of IRS to individual information needs in order of relevance. The research addressed development of algorithms that optimize the ranking of documents retrieved from IRS. In this thesis, we present two aspects of context-awareness in IR. Firstly, the design of context of information. The context of a query determines retrieved information relevance. Thus, executing the same query in diverse contexts often leads to diverse result rankings. Secondly, the relevant context aspects should be incorporated in a way that supports the knowledge domain representing users’ interests. In this thesis, the use of evolutionary algorithms is incorporated to improve the effectiveness of IRS. A context-based information retrieval system is developed whose retrieval effectiveness is evaluated using precision and recall metrics. The results demonstrate how to use attributes from user interaction behaviour to improve the IR effectiveness |
author |
Agbele, Kehinde Kayode |
author_facet |
Agbele, Kehinde Kayode |
author_sort |
Agbele, Kehinde Kayode |
title |
Context-awareness for adaptive information retrieval systems |
title_short |
Context-awareness for adaptive information retrieval systems |
title_full |
Context-awareness for adaptive information retrieval systems |
title_fullStr |
Context-awareness for adaptive information retrieval systems |
title_full_unstemmed |
Context-awareness for adaptive information retrieval systems |
title_sort |
context-awareness for adaptive information retrieval systems |
publisher |
University of the Western Cape |
publishDate |
2014 |
url |
http://hdl.handle.net/11394/3845 |
work_keys_str_mv |
AT agbelekehindekayode contextawarenessforadaptiveinformationretrievalsystems |
_version_ |
1718510778902904832 |