Subject Details
Dept     : CSE
Sem      : 7
Regul    : 2019
Faculty : Dr.Jebakumari Immanuel.D
phone  : NIL
E-mail  : jebakumarimmanuel@gmail.com
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Lecture Notes

UNIT 1:
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Information Retrieval
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Early Developments – The IR Problem – The User‗s Task
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Information versus Data Retrieval
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The IR System – The Software Architecture of the IR System
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The Retrieval and Ranking Processes
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The Web – The e-Publishing Era – How the web changed Search
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Practical Issues on the Web – How People Search
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Search Interfaces Today
UNIT 2:
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Basic IR Models - Boolean Model
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TF-IDF (Term Frequency/Inverse Document Frequency) Weighting - Vector Model
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Probabilistic Model
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Latent Semantic Indexing Model
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Neural Network Model
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Precision and Recall – Reference Collection
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User-based Evaluation
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Relevance Feedback and Query Expansion – Explicit Relevance Feedback.

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