ByGhelani Vivek G.

(4SH10CS014)

OUTLINE

→ INTRODUCTION→ SEMENTIC SEARCH→ MAJOR FORM OF SEARCH→ HOW SEARCH WORKS→ CONCLUSION

INTRODUCTION

• Google Search (or Google Web Search) is a web search engine owned by Google Inc.

• Most-used search engine on the World Wide Web

• Main purpose of Google Search is to hunt for text in publicly accessible documents offered by web servers

• Frequency of use of search terms on Google - more than ????? billion each day

SEMENTIC SEARCH

Attributes of semantic searchContext of SearchSynonyms with correct sensesGeneralizationsConcept matchingKnowledge matchingNatural language queries and questionsVariation of wordsLocation

MAJOR FORM OF SEARCH

1. Navigational– To navigate to a particular intended document– Semantic search is not applicable to navigational

searches.

2. Research– To denote an object about which the user is

trying to gather/research information– Semantic search lends itself well with this

approach

• 60 Trillion Individual Pages & still growing• CRAWLING - Navigates Web

› We follow links from PAGE to PAGE› Site Owner choose whether their sites are crawled

(SEO)• INDEXING – Sort Pages

› By page Content & other factors› It keep track of it all in INDEX› Data of INDEX is over ??? million GB

• GOOGLE PANDA• GOOGLE PENGUIN• GOOGLE HUMMINGBIRD

GOOGLE PANDA

• March, 2011• AIM – “To Change

Search Results Ranking“

• Affects ranking of entire site/specific section rather than just individual pages on site

GOOGLE PENGUIN

• April, 2012• AIM – “To Control

Spamdexing ”• Decreasing search

engine rankings of websites that violate Google’s Webmaster Guidelines (i.e Design and Content, Technical, & Quality)

GOOGLE HUMMINGBIRD

• September, 2013• AIM – “Precise & Fast”• Rank the Results using over ??? Factors– Site & Page Quality– Freshness– Page Rank– Safe Search– User Context– Your Region•All this happens in 1/8th of seconds

RESULT