Web clustering Engines are emerging trend in the field of data retrieval. They organize search results by topic, thus providing a complementary view to the flat ranked list returned by the standard search engines.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
WEB CLUSTERING ENGINES
Northern Lights (Clustered Search Engine)
Web clustering engines:
1. Northern Light - predefined set of clusters
2. Credo Reference
Text of each search result gets split into a sequence of basic independent units called tokens represent by word, number or symbol.
Remove the inflectional prefixes and suffixes of each word to reduce different grammatical form of the word to a common base form called a ‘stem’.
connected,connecting & interconnection
↓ ↓ ↓
where t0, t1, . . . tnis a set of words/features
andwtiis the weight/importance of feature ti
d→“Pollyhad a dog and the dog had Polly”
for building the clusters and labeling.
Three types of Algorithms:
1.Data Centric Algorithms