Science and Development Network (SciDev.Net)
The World Wide Web (WWW) comprises enormous websites located around the world, and it is the cheapest source to publish information that instantly becomes accessible across the globe. The information available on the Internet is invariably increasing on the daily basis, which in turn is resulting in serious challenges for the researchers to retrieve the relevant information from huge bulk of data. The precious time of researchers and scientists goes wasted as they have to sift through massive amount of irrelevant and unnecessary material returned by the conventional search engines. Due to this fact, the task of searching focused and relevant material has become a tedious activity in the information retrieval process over the Internet.