Introduction to Information Retrieval Introduction to Information Retrieval Lecture 6: Scoring, Term Weighting and the Vector Space Model.
Probe, Count, and Classify: Categorizing Hidden Web Databases Panagiotis G. Ipeirotis Luis Gravano Columbia University Mehran Sahami E.piphany Inc.
Educational Statistics: Activities of Statisticians Major activities in statistics involve: –design of experiments and surveys to test hypotheses –exploration.
7-5 Box-and-Whisker Plots Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
CS276 Information Retrieval and Web Mining Lecture 6.
Scoring, Term Weighting, and Vector Space Model Lecture 7: Scoring, Term Weighting and the Vector Space Model Web Search and Mining 1.
PrasadL08VSM-tfidf1 Vector Space Model : TF - IDF Adapted from Lectures by Prabhakar Raghavan (Google) and Christopher Manning (Stanford)