Notes for C.2.9 Search Engine Effectiveness - IB | RevisionDojo
C.2.9 Search Engine Effectiveness Notes
Key Concepts
Search Engine Effectiveness: How well a search engine retrieves relevant results based on a query.
Assumptions in Development: The underlying rules and heuristics used to design search algorithms.
How Assumptions Affect Effectiveness
Keyword Matching: Many search engines assume that matching keywords in the query to keywords in documents will yield relevant results.
Limitation: This may miss documents that use synonyms or related terms.
Popularity-Based Ranking: Algorithms like PageRank assume that popular pages are more relevant.
Limitation: Niche or new content may be overlooked.
User Intent: Some search engines use machine learning to predict user intent.
Limitation: Misinterpreting intent can lead to irrelevant results.
Balancing Precision and Recall
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Definition
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(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.
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Note
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Excepteur sint occaecat cupidatat non proident
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Tip
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.
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Note
Key Concepts
Search Engine Effectiveness: How well a search engine retrieves relevant results based on a query.
Assumptions in Development: The underlying rules and heuristics used to design search algorithms.
