Text Retrieval and Search Engines Orientation Course Introduction (00:03:11) Course Welcome (00:10:45) Week 1 1.1 Natural Language Content Analysis (00:21:05) 1.2 Text Access (00:09:24) 1.3 Text Retrieval Problem (00:26:18) 1.4 Overview of Text Retrieval Methods (00:10:10) 1.5 Vector Space Model: Basic Idea (00:09:44) 1.6 Vector Space Model: Simplest Instantiation (00:17:30) 1.7 Vector Space Model: Improved Instantiation (00:16:52) 1.8 TF Transformation (00:18:56) 1.9 Doc Length Normalization (00:18:56)