PROJECT MANAGEMENT Chu Eu Ho Dept. of Civil and Environmental Engineering Massachusetts Institute of Technology.
Origin of Simultaneous Donor- Acceptor Emission in Single Molecule of Peryleneimide- Terrylenediimide Labeled Polyphenylene Dendrimers Sergey M.Melnikov.
IR Models: Overview, Boolean, and Vector. Introduction IR systems usually adopt index terms to process queries Index term: –a keyword or group of selected.
Search Engines in eCommerce Web-Based Information Architectures MSEC 20-760 Mini II Jaime Carbonell.
Web-based Information Architectures Jian Zhang. Today’s Topics Term Weighting Scheme Vector Space Model & GVSM Evaluation of IR Rocchio Feedback Web Spider.
Operating Systems Protection & Security. Topics –Goals of Protection –Domain of Protection –Access Matrix –Implementation of Access Matrix –Revocation.
Information Retrieval Latent Semantic Indexing. Speeding up cosine computation What if we could take our vectors and “pack” them into fewer dimensions.
