Review of Link Structure Based Ranking Algorithms and Hanging Pages

Review of Link Structure Based Ranking Algorithms and Hanging Pages

Ravi P. Kumar (Curtin University, Australia), Ashutosh K. Singh (National Institute of Technology, India) and Anand Mohan (National Institute of Technology, India)
DOI: 10.4018/978-1-5225-0105-3.ch018
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Abstract

In this era of Web computing, Cyber Security is very important as more and more data is moving into the Web. Some data are confidential and important. There are many threats for the data in the Web. Some of the basic threats can be addressed by designing the Web sites properly using Search Engine Optimization techniques. One such threat is the hanging page which gives room for link spamming. This chapter addresses the issues caused by hanging pages in Web computing. This Chapter has four important objectives. They are 1) Compare and review the different types of link structure based ranking algorithms in ranking Web pages. PageRank is used as the base algorithm throughout this Chapter. 2) Study on hanging pages, explore the effects of hanging pages in Web security and compare the existing methods to handle hanging pages. 3) Study on Link spam and explore the effect of hanging pages in link spam contribution and 4) Study on Search Engine Optimization (SEO) / Web Site Optimization (WSO) and explore the effect of hanging pages in Search Engine Optimization (SEO).
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Background

Hanging page is a page that does not have any forward or outgoing links in the Web. Hanging page can be also called dangling page, zero-out-link page, dead end page, sink page etc. For uniformity and consistency purpose, the term 'hanging page' has been used throughout this chapter. Most of the ranking algorithms used by search engines just ignore the hanging pages. However, hanging pages cannot be just ignored because they may have relevant and useful information like .pdf, .ppt, video and other attachment files. This chapter exposes the various problems associated with hanging pages in link structure based ranking algorithms. This chapter also discusses some former methods for dealing with hanging pages. Hanging pages are one of the hidden problems in link structure based ranking algorithms because:

  • They do not propagate the rank scores to other pages (important function of link structure based ranking algorithms).

  • They can be compromised by spammers to induce link spam in the Web.

  • They can affect Website optimization and the performance of link structure based ranking algorithms.

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