RESEARCH INTEREST

• Computer network
• Web workload characterization and performance enhancement techniques
• Content distribution
• Adaptive applications
• Packet classification
• TCP and congestion control in general
• Wireless networking

EDUCATION

• Cornell University, 08/1996 - 01/2001

Ph.D. major in Computer Science, minor in EE
Research advisors: Prof. George Varghese and Dr. Robbert van Renesse
Cumulative G.P.A.: 4.06/4.00
• Cornell University, 08/1996 - 05/1998

M.S. in Computer Science
Research advisor: Prof. Srinivasan Keshav
Cumulative G.P.A.: 4.06/4.00
• University of Bridgeport, 08/1993 - 05/1996

B.S. in Computer Science, and  B.S. in Physics
Cumulative G.P.A.: 3.96/4.00,  CS Major G.P.A.: 4.00/4.00, Physics G.P.A.: 4.00/4.00

RESEARCH AND INDUSTRIAL EXPERIENCE

• Researcher. Microsoft Research, 02/2001 - present
• Research Assistant. Cornell University CS Department, 08/1998 - 01/2001

Worked on:
• Web replication
• Packet classification
• TCP/Spand: Investigate techniques to improve TCP start-up performance
• TCP performance analysis: Study individual and aggregate TCP performance using extensive simulation
• Built a semi-automatic C to C++ translator

• Research Intern. AT&T Labs , Summer 2000

Mentor: Sandeep Sibal. Worked on server selection techniques in content distribution networks.
 
• Research Intern. Microsoft Research, Summer 1999

Mentor: Venkata N. Padmanabhan. Worked on characterizing web workload and web replication. The work will appear in SIGCOMM'2000.
 
• Research Intern. Bell Labs, Lucent Technologies, Summer 1998

Mentor: Jonathan Rosenberg. Worked on integrating FEC into adaptive audio playout algorithms. The work appeared in INFOCOM'2000.
 
• Intern. Sun Microsystem, Menlo Park, CA, Summer 1997

Mainly involved in developing WebNFS client and NFSTool.
 
• Intern. Coopers & Lybrand, New York, NY, Summer 1996

Worked on Fads & Fashion Project. It is an X-window application written in C++ which uses mathematical modeling to predict CD market. This project was presented in the annual conference of Santa Fe Institution in August 1996, and got very good response.
 
• Intern. Dictaphone, Summer 1995

Wrote a SCSI-device control program in C using Adaptec's adaptor and its assembly software interface to monitor and automate testing the DAT tape-drivers.

• Teaching Assistant. Cornell University CS Department, 1997 Fall and 1998 Spring

Course: CS314 (Introduction to Digital System and Computer Organization)
• Teaching Assistant. University of Bridgeport, 9/1994 - 5/1996

Courses: different levels of mathematic courses, including calculus, differential equation, discrete structure.

REFEREED PAPERS

• L. Qiu, G. Varghese, and S. Suri. Fast Packet Classification on Multiple Dimensions. Accepted as extended abstract in SIGMETRICS 2001.
• L. Qiu, Y. Zhang, and S. Keshav. Understanding the Performance of Many TCP Flows. Accepted by Computer Networks Journal.
• L. Qiu, V. N. Padmanabhan, G. M. Voelker. On the Placement of Web Server Replicas. To appear in INFOCOM 2001.
• V. N. Padmanabhan and L. Qiu. The Content and Access Dynamics of a Busy Web Server: Findings and Implications. Proceedings of ACM SIGCOMM 2000, Stockholm, Sweden, August - September 2000.
• Y. Zhang, L. Qiu, and S. Keshav. Speeding Up Short Data Transfers: Theory, Architectural Support, and Simulation Results. Proceedings of NOSSDAV 2000, Chapel Hill, NC, USA, June 2000.
• V. N. Padmanabhan and L. Qiu. The Content and Access Dynamics of a Busy Web Server. Extended abstract in Proceedings of ACM SIGMETRICS 2000, Santa Clara, CA, USA, June 2000.
• J. Rosenberg, L. Qiu, and H. Schulzrinne. Integrating Packet FEC into Adaptive Voice Playout Buffer Algorithms on the Internet. Proceedings of IEEE INFOCOM 2000, Tel-Aviv, Israel, March 2000.
• L. Qiu, Y. Zhang, and S. Keshav. On Individual and Aggregate TCP Performance. 7th International Conference on Network Protocols (ICNP), Toronto, Canada, October 1999.
• L. Qiu and L. Li. Contour Extraction of Moving Objects. 14th International Conference on Pattern Recognition (ICPR), Australia, 1998.

TALKS

• "The Content and Access Dynamics of a Busy Web Ser ver: Findings and Implications". ACM SIGCOMM 2000, Stockholm, Sweden, August 2000.
• On Individual and Aggregate TCP Performance". 7th International Conference on Network Protocols (ICNP'99), Toronto, Canada, October 1999.

HONORS AND AWARDS

• McMullen Fellowship, 1996-97, Cornell University
• Dan Drew Scholarship, 1996, US National award in computer science
• All American Scholar, 1996
• Dean's Award, 1996, University of Bridgeport, offered to 1 senior each year
• Academic Achievement in Physics, 1996, University of Bridgeport
• Charles E. Reed Award, 1995, University of Bridgeport, offered to 1 junior each year
• President's List, 1993 - 1996, University of Bridgeport
• Dean's List, 1993 - 1996, University of Bridgeport
• Academic Excellence and Leadership Scholarship, 1993 - 1996, University of Bridgeport

COMPUTER SKILLS

• Programming Languages:

C, C++, Java and Java Beans, Perl, PASCAL, Tcl/Tk, OTCL, ML, Scheme, Fortran, Forth, SQL
• Operating System Experience:

Unix (SunOS/Solaris, Linux), DOS, Microsoft Windows, Windows NT, OS/2
• Networking:

Familiarity with TCP/IP protocol stack, HTTP, RPC, NFS protocols.
Working experience with Network Simulator (NS) and Entrapid, CGI programming.
• System Knowledge:

Unix system programming, Unix shell programming, X-windows programming in XView and Motif, Database, compiler, basic system administration.
• Document preparation language:

Latex, HTML
• Hardware

VHDL, FPGA implementation

PROFESSIONAL ACTIVITIES

• Referee for submissions to the following professional conferences and journals: IEEE INFOCOM, IEEE IPDPS, NOSSDAV, IEEE Journal on Selected Areas in Communications (JSAC), and Computer Comunnication Review (CCR).
• Student member, IEEE Computer Society
• Student member, IEEE Communication Society
• Member, Upsilon Pi Epsilon National Honor Society

REFERENCE

• Professor George Varghese (Thesis advisor)

Computer Science and Engineering, MS 0114
University of California, San Diego
9500 Gilman Drive
La Jolla, CA 92040-0114
Tel: 619-822-0424
Email: varghese@cs.ucsd.edu
 
• Dr. Robbert van Renesse (Thesis advisor)

Department of Computer Science
4118 Upson Hall
Ithaca, NY 14853
Tel: 607-255-1021
Email: rvr@cs.cornell.edu
 
• Dr. Venkata N. Padmanabhan (Internship supervisor)

Systems and Networking Research Group
Microsoft Research
One Microsoft Way
Redmond, WA 98052
Tel: 425-705-2790
Email: padmanab@microsoft.com
 
• Jonathan Rosenberg (Internship supervisor)

Dynamicsoft
72 Eagle Rock Avenue
First Floor
East Hanover, NJ 07936
Tel: 973-952-5000
Email: jdrosen@dynamicsoft.com