Ola Alsukour

TL;DR: The effects of network parameters (beacon packet interval-time, node speed, network density, transmission range, and network area size) on Wireless link breakage, identified as the neighbor wireless link break (NWLB) problem, in the GPSR protocol are identified and the NWLBP model is proposed.

Abstract: Crawler is one of the major components in the architecture of information retrieval systems or search engines.The function is to gather relevant websites aimed to be managed through indexing of links and content.A focused crawler application is designed to select and collect web pages that are relevant to domains or specific topics in the Internet.A good crawler can provide accurate, extensive and relevant information to the user during the process of information seeking using search engines.The inability to detect links and content of Malay language is one of the main issues.Therefore, some of the content of the Malay website cannot be indexed and processed for information retrieval.The lack of research in focused crawler especially for Malay website has motivated this research.The main objective of this study is to identify good crawling strategies for focused crawler in detecting relevant and quality links for Malay website.The focused crawler employed in this research has undergone some modifications resulting from a combination of some crawling strengthening techniques.Findings indicate that the presence of a focused crawler enhancement module provides good results because it can detect Malay language webs accurately.This research is also a turning point for the development of information retrieval for Malay websites as well as enhancing the prominence of Malay language in cyberspace.

TL;DR: By applying local error recovery algorithm, the number of duplicated packets, due to packets retransmission, decreases which lead to improving the system performance, and the scalability of the proposed algorithm is demonstrated in comparison to Source Tree Reliable Multicast (STRM) protocol.