Intelligent Database Systems Lab Presenter: YU-TING LU Authors: Christopher C. Yang and Tobun Dorbin Ng 2011. TSMCA Analyzing and Visualizing Web Opinion.

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Presentation transcript:

Intelligent Database Systems Lab Presenter: YU-TING LU Authors: Christopher C. Yang and Tobun Dorbin Ng TSMCA Analyzing and Visualizing Web Opinion Development and Social Interactions with Density-Based Clustering

Intelligent Database Systems Lab Outlines Motivation Objectives Methodology Experiments Conclusions Comments

Intelligent Database Systems Lab Motivation Analysis of developing Web opinions is potentially valuable for discovering ongoing topics. Typical document clustering techniques with the goal of clustering all documents applied to Web opinions produce unsatisfactory performance.

Intelligent Database Systems Lab Objectives We investigated the density-based clustering algorithm and proposed the scalable distance-based clustering technique for Web opinion clustering. This Web opinion clustering technique enables the identification of themes within discussions in Web social networks and their development, as well as the interactions of active participants.

Intelligent Database Systems Lab Methodology

Intelligent Database Systems Lab Methodology-content clustering Core Thread Concept Selection for Clustering

Intelligent Database Systems Lab Methodology-content clustering SDC Algorithm

Intelligent Database Systems Lab Methodology-Interactive information visualization

Intelligent Database Systems Lab Methodology-Interactive information visualization

Intelligent Database Systems Lab Methodology-Interactive information visualization

Intelligent Database Systems Lab Experiments

Intelligent Database Systems Lab Experiments

Intelligent Database Systems Lab Experiments

Intelligent Database Systems Lab Conclusions The SDC algorithm overcomes the weakness of DBSCAN algorithm by grouping less number of less relevant clusters together when they are density-reachable. The result has shown that they are promising to extract clusters of threads with important topics and filter the noise.

Intelligent Database Systems Lab Comments Advantages - SDC performs better than DBSCAN. - Effective noise filtering. Applications - Web opinions clustering. - Density-based clustering.