Access Type

Open Access Dissertation

Date of Award

January 2016

Degree Type


Degree Name



Computer Science

First Advisor

Zaki Malik


The need to find, access and extract information has been the motivation for many

different fields of research in the past few years. The fields such as Machine Learning,

Question Answering Systems, Semantic Web, etc. each tries to cover parts of the

mentioned problem. Each of these fields have introduced many different tools and

approaches which in many cases are multi-disciplinary, covering more than one of

these fields to provide solution for one or more of them. On the other hand, the

expansion of the Web with Web 2.0, gave researchers many new tools to extend

approaches to help users extract and find information faster and easier. Currently,

the size of e-commerce and online shopping, the extended use of search engines for

different purposes and the amount of collaboration for creating content on the Web

provides us with different possibilities and challenges which we address some of them