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