Distributed machine learning examples

Distributed machine learning examples

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  DISTRIBUTED MACHINE LEARNINGEXAMPLES STANLEY WANG SOLUTION ARCHITECT, TECH LEAD @SWANG68 http://www.linkedin.com/in/stanley-wang-a2b143b
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  Topic Modeling • Topicalcategorization of blogs, documents or other objects that can be tagged with text, improves the experience for end users; • Discover Sets of Topics from Large Unstructured Collections of documents; • Annotate documents with topic; • Utilize Annotation to Index, Search and Classify on documents;
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  The Intuitions behindLDA • Latent Dirichlet Allocation (LDA) is an unsupervised, probabilistic, text clustering algorithm. LDA defines a generative model that can be used to model how documents are generated given a set of topics and the words in the topics;
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  Graphical Model forLDA • Topic-based text classification; • Topic modeling can be seen as a pre-processing step before applying supervised learning methods, such as Collaborative Filtering; • Finding patterns in genetic data, images, and social networks;
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  Real Inference withLDA • A 100-topic LDA model was fitted to 17,000 articles from the Science journal; • At right are the top 15 most frequent words from the most frequent topics; • At left are the inferred topic proportions for the example article from previous slide;
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  Topic Modeling andAnalysis
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  What is CommunityIntuition? In social world, community is a collection of users that are more closely related to each other than the rest of the network. The relation between users can be amount of interaction, similar interest, geographical factors etc.
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  Why Detect SocialCommunities? • Behavior Analysis • Location-based Interaction Analysis • Recommender Systems Development • Link Prediction • Customer Interaction and Analysis • Media & Content Analysis • Security • Social Studies
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  Community And Applications
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  Structure Metrics
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  Centrality Metrics
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  Metrics of GraphAnalysis
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  Graph Modularity
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  Graph Modularity Computation
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  Graph Modularity Examples
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  Diverse of Centrality
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  Social Tag Clustering
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  Social Tag Clustering- Examples