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EXISTING SYSTEM

PROPOSED SYSTEM

 EXISTING CONCEPT:-

In this case, a previous noncore node (including an outlier or a newly added node) in the network becomes a core node. Such anew core node p may either join the MCMS of an existing community causing its expansion, form atonally new community (birth), or may cause two communities to merge by joining their respective MCMSs through its Np. These situations are generalized.

Existing core node loses its core node property due to some change(s) in its neighborhood. Such a situation could either split a community due to a cut in its MCMS resulting from a lost core node, or shrinkage of a community. These situations are generalized.

 PROPOSED CONCEPT:-

In this paper, we have proposed a novel density-based framework, HOC Tracker, to track community evolution in dynamic social networks.

The problem of community detection in social networks depends on various factors, including whether the definition of community relies on global or local network properties, whether communities overlap, whether communities possess a hierarchical structure, whether link weights are utilized, whether outliers are considered, and whether dynamic nature of networks/communities is considered.

EXISTING TECHNIQUE:-

Birth_Expand_Merge,Death_Shrink_Split, Crawl

PROPOSED TECHNIQUE:-

HOC Tracker

TECHNIQUE DEFNITION:-

Existing core node loses its core node property due to some change(s) in its neighborhood. Such a situation could either split a community due to a cut in its MCMS resulting from a lost core node, or shrinkage of a community. These situations are generalized.

TECHNIQUE DEFNITION:-

Real-world social networks often contain noise or outliers and hubs. Therefore, after finding all possible communities from an underlying network, HOC Tracker labels an un-clustered/un-labeled node as a hub if it has out-going edges to the primary core nodes of more than one community, and the remaining nodes are marked as outliers.

DRAWBACKS:-

Here existing community can access new  community

existing community content will be change

ADVANTAGES:-

Here easily find out the overlapping

Content doesn’t change