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MOOC on M4D 2013
SEARCH AND SEMANTIC SEARCH
Indian Institute of Technology Kanpur Commonwealth of Learning Vancouver
MOOC on M4D 2013
S EARCH AND S EMANTIC S EARCH Indian Institute of Technology Kanpur - - PowerPoint PPT Presentation
S EARCH AND S EMANTIC S EARCH Indian Institute of Technology Kanpur - - PowerPoint PPT Presentation
S EARCH AND S EMANTIC S EARCH Indian Institute of Technology Kanpur Commonwealth of Learning Vancouver MOOC on M4D 2013 T.V. Prabhakar IIT Kanpur MOOC on M4D 2013 Search Engines Do not search the web in real time Searche an index of
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MOOC on M4D 2013
Search Engines
- Do not search the web in real time
- Searche an index of the web
- Created by crawling with spiders
- Searches the documents for the occurrence
- f the “search string” - substring search
- After retrieving the documents does ranking
- Ranking is critical and complex
– Google uses 200+ factors for ranking
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MOOC on M4D 2013
Google Webmasters Tools
- How search works
https://youtu.be/BNHR6IQJGZs
- More detailed
https://youtu.be/KyCYyoGusqs
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But
Holstein Jersey
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How do we do this?
- The system needs to know that Holstein is a
breed of cow and Jersey is another breed
Cow Breeds
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Pigeonpea domain model
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MOOC on M4D 2013
We call these
- Knowledge Models
- Useful in
– Semantic Search – Related Documents – Inference – Teaching – ..
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MOOC on M4D 2013