Autumn Quarter 2001

• Discourse & Dialogue
  Project Description: Presented and implmented a new algorithm for Topical Multi-Document Summarization. Used C++, JAVA, and UNIX shell scripting under Linux.
  Report: pdf
  Web: http://people.cs.uchicago.edu/~hai/courses/cs359
  Source Code: provided in project Web above.
  

Spring Quarter 2001

• Distributed Computing
  Project Description: Designed and developed an RPC-based, P2P music service for the storage and retrieval of music files on multiple sites. Used ANSI C under Linux.
  Report: pdf
  Source Code: tarball
  

• Computer Vision
  Project Description: Presented and implemented a refined algorithm for curve detection with dynamic programming. Used C++ under Linux.
  Report: pdf
  Source Code: tarball
  

• Collaborative Virtual Environments
  Project Description: Studied the effect of network bandwidth and multicast protocol on the performance of the Access Grid, a large-scale collaborative environment to support human interaction across the Grid.
  Report: pdf
  

Winter Quater 2001

• Operating Systems
  Project Description: Developed a simple Unix command shell known as Yash supporting I/O redirection, pipes, signals, and background processes. Developed a Unix-like operating system kernel named Yalnix supporting low-level hardware control, memory management, process scheduling, and system calls handling etc. Programmed with ANSI C under Sun Solaris for both projects.
  Yash Shell Handout: pdf
  Yalnix Kernel Handout: ps
  Yash Shell Source Code: tarball
  Yalnix Kernel Source Code: tarball
  

• Information Retrieval Technology
  Project Description: Surveyed prevalent text classification algorithms such as the Rocchio Algorithm, TFIDF classifier, and Naive Byes Algorithm etc. Implemented an automatic text categorization system named MailParser based on the Rocchio algorithm with TFIDF weighting method. Used C++ under Linux.
  Report: pdf
  Source Code: tarball
  

Autumn Quater 2000

• P2P Networks
  Project Description: Studied and analyzed the protocols of the Gnutella P2P system. Captured the network traffic and topology, and the resources dynamic behavior by a distributed crawler. Evaluated costs and benefits of the approach and investigated possible improvements to the routing protocol. Used Python under Linux for crawler and network analyzer programs. Used ATT's Graphviz to visualize the network topology.
  Report: pdf
  Presentation: ppt
  Crawler Source Code: tarball
  Analyzer Source Code: tarball

• Computer Architecture
  Project Description: Analyzed the features of the distributed sensor networks (DSNs) and compared with traditional networks. Discussed several critical DSN implmentation issues, including hardware, network architecture, communication and routing protocol, naming and addressing mechanism, application architecture, and security.
  Report: pdf