Most of these lectures are Powerpoint presentations - a few are HTML or (most recently) PDF.

CS 486 lectures:

• 1/27/03: Lecture 1 Intro to the course. What is electronic commerce? What are the interesting computational issues?
• 1/29/03: Lecture 2 Agents. What is an agent, and why is this a useful concept for software design? Rationality as a design principle. Designing mechanisms to encourage rational agents to behave in socially useful ways.
• 2/3/03: Lecture 3 Symmetric key encryption. Caesar cipher. Block and Stream Ciphers. Basics of symmetric-key encryption. DES and RC5.
• 2/5/03: Lecture 4 Public key Encryption. Basics. RSA. Mathematics and correctness of RSA. Authentication and digital signatures. Computational difficulty of factoring. Zero-knowledge protocols.
• 2/10/03: Lecture 5 Attacks on Cryptosystems. Zero-knowledge protocols.
• 2/12/03: Lecture 6 Applying Encryption to different sorts of Protocols: message-oriented, transaction-oriented, and session-oriented. Steganography and digital watermarking.
• 2/17/03: Lecture 7 Details of steganography and digital watermarking schemes. Uses and attacks.
• 2/19/03: More on steganography.
• 2/24/03: Lecture 8 Search and Discovery on the Web. A History of the WWW and the development of hyperlinked documents. The graph structure of the Web. Estimating search engine coverage.
• 2/26/03: Lecture 9 Architecture of a search engine. Indexing. PageRank. Crawling and storing very large search spaces. Structure of the Web.
• 3/3/03: Project 2, part 1 Discussion of the project. Requesting XML over HTTP. What are Web Services?
• 3/5/03: XML and XSLT. Notes are here. Form and construction of XML documents. DTDs. Forming parse trees from XML documents. Using XSL style sheets to transform XML documents.
• 3/10/03: Project 2, Part 2 Discussion of part 2 of project 2.
• 3/12/03: Lecture 14 Discussion of Project 2, SOAP, and using Apache Axis. Notes contained in this guide.
• 3/17/03 Spring Break
• 3/19/03 Spring Break
• 3/24/03 Midterm review
• 3/26/03 Midterm
• 3/31/03 Recommender Systems. Personalization. Whay recommender systems are interesting. Types of recommendations (user-user, item-item, item-user). Algorithms: Naive Bayes classifier, rule learning, nearest neighbor.
• 4/2/03 Information Goods. What makes information goods distinct: low marginal cost, nonrivalry, nonexcludability, bundling, pricing.
• 4/7/03 More on pricing information. Learning prices and the tradeoff between accuracy and learning rate. Supply and Demand.
• 4/9/03 Intro to game theory. Extensive and normal form games. Prisoner's Dilemma. Tragedy of the Commons. Dominated strategies.
• 4/14/03 More game theory. Nash equilibria. More on finding dominated strategies. Mixed strategy Nash equilibria.
• 4/16/03 Auctions What are the different types of auctions? (First price, Dutch, Vickrey, CDA). Truth-telling in the Vickrey auction. Using auctions to schedule resource usage.
• 4/21/03 Discussion of Project 3. Began coverage of Business Plans .
• 4/23/03 More coverage of Business Plans .
• 4/28/03 Payment mechanisms
• 4/30/03 More payment mechanisms.
• 5/5/03 Finishing payment. Copyright, Intellectual Property, and Fair Use.
• 5/7/03 More on intellectual property. Copyleft, the GNU public license, and open-source.
• 5/12/03 Summary and wrap-up.
• 5/14/03 Review for exam.
• 5/19/03 Final exam