1. Scribing Your responsibility to scribe at least one class (5 points of final grade!)

2. Homework 3 Deadline extended to first class after Spring break If you write a good original report, then I will let you make that your longer research paper Demo

3. Homework 3 Google's mission is to organize the world's information and make it universally accessible and useful Heterogeneity: –Data is in many different formats: –Images (general); Satellite images (overlaid on Maps, focused domain: Google Earth) –Video –Structured (info. about businesses: Google Local) Vs. Unstructured (Web pages, scanned books) Vs Hybrid (email, research papers: Google Scholar)

4. Homework 3 We saw how Google deals with Textual Web Pages: Text + Hyperlink data: –Anatomy –Cleaning, purification, term extraction –Indexing –Query interface –How to do a search –Ranking algorithms for search results (PageRank) –Performance metrics –Metasearch –False starts made by businesses (search --> portal) –How to make money: advertising –Fraud

5. Homework 3 Write an article about how Google can extend/modify itself to "manage" other data/information than textual Web pages At least 2500 words No upper bound on number of words Organization and Flow of ideas matter most