JasonBender-WebPageClassification

JasonBender-WebPageClassification - Click to edit Master...

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Click to edit Master subtitle style 8/1/11 Web Page Classification Features and Algorithms Paper by: XIAOGUANG QI and BRIAN D. DAVISON Presentation by: Jason Bender
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8/1/11 Outline Introduction to Classification l Background Classification Types Classification Methods l Applications l Features l Algorithms l Evolution of Websites
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8/1/11 What is web page The process of assigning a web page to one or more predefined category labels (ex: news, sports, business…) l Classification is generally posed as a supervised learning problem Set of labeled data is used to train a classifier which is applied to label future examples
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8/1/11 Background - Classification Supervised learning problem broken into sub problems: Subject Classification Functional Classification Sentiment Classification Other types of Classification
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8/1/11 Subject Classification Concerned with subject or topic of the web page Judging whether a page is about arts, business, sports, etc… Functional Classification Role that the page is playing Deciding a page to be a personal homepage, course page, admissions page, etc…
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8/1/11 Sentiment Classification Focuses on the opinion that is presented in a web page Other types of Classification Such as genre classification and search engine spam classification
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8/1/11 Background - Classification Binary vs. Multiclass l Single Label vs. Multi Label l Soft vs. Hard l Flat vs. Hierarchical
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8/1/11 Binary vs. Multiclass
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8/1/11 Single-Label vs. Multi-Label
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8/1/11 Soft vs. Hard Classification
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8/1/11 Flat vs. Hierarchical
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8/1/11 Applications Why is classification important and how can we use it efficiently?
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This note was uploaded on 07/30/2011 for the course COP 4810 taught by Professor Staff during the Spring '11 term at University of Central Florida.

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JasonBender-WebPageClassification - Click to edit Master...

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