Contacting Me:

 

Office:	3310 CS Dept. 1210 W.Dayton St. Madison WI 53706
Phone:	608-262-1721(o)  608-231-6244(h)
Fax:	608-262-9777
Email:	ywl@cs.wisc.edu

Seeking a challenging position beginning Jan. 2001 in software design and development, with interests in areas of Database Systems, Networking, and Operating System.

 

M.S. in Computer Sciences (expected December, 2000)	University of Wisconsin, Madison
B.S. in Computer Sciences (July, 1999)	Peking University, China

 

CS 564 Database Management System	CS764 Topics in Database Management System
CS640 Introduction to Network	CS736 Advanced Operating System
CS540 Introduction to Artificial Intelligence	CS766 Computer Vision
CS752 Advanced Computer Architecture	CS838 Bioinformatics

Database System:

   --Implemented various components of a relational DBMS, including buffer manager, file manager, catalogs and two kinds of joins: sort merge join and grace hash join. (C++ on Unix)

   --Took a commercial database and added an ADT for it. Implemented the Email type ADT, which was able to store an Email message in database and retrieve different parts of the email message: sender, receiver, date, subject and any parts of the body. (C++ on Unix)

  Network:

   --Implemented a Reliable Multicast network over a Datagram Network. Designd the network layer and transport layer protocols, and provided interfaces to the application and the underlying layer. The project provided the reliable multicast service with scalability. (C++ on Unix)

 Operating System:

   --Studied the NASD caching alternatives by trace-driven simulation. The goal of this project is to evaluate caching schemes on NASD. The best caching configuration in our model turns out to be 1-Chance scheme on server side and non-cooperative on client side. (C++ on Unix)

 Computer Architecture:

   --Investigated the effectiveness of the trace-cache and the multiple branch prediction. We added the trace cache and the multiple branch predictor to ?sim-outorder? of SimpleScalar Tool Set and used it to do execution-driven simulation. We used SPEC95 Benchmarks and investigated the performance of different variations of the trace cache. (C on Unix)

CS Dept. UW-Madison (09/00 - 12/00)

Teaching assistant for CS135.

NCR, Madison WI (05/00 - 08/00, intern)

Extented a commercial parallel database by integrating the rank operator and qualify clause into the system. As the increasing use of databases in decision-support and data warehousing environments, ranking tuples on some attributes and limiting the  cardinality of the final output are commonly needed. In the parallel system, we needed to do range partitioning on ranked attributes, rank data on each local node, then merge the final  result. (C++ on NT)

Oracle, Beijing, China (08/98 - 01/99, part time)

Worked with a group of technical consultants. Work included documentation, application development and technical support.

UW Graduate School Fellowship, 1999-2000, University of Wisconsin, Madison.

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