resume

OBJECTIVE	Seeking for a chanllenging software engineer position.
SITE PREFERENCE	Northern California
INTERESTS	Computer networks and Internet technology * Internet service management, end-to-end QoS * Web QOS, Web server scalability * traffic/network performance measurement and analysis Parallel and Distributed Systems, Operating Systems * System software development * Cluster Technology Database Management Systems, Internet Database
HIGHLIGHTS	* Solid background in Computer Science and Engineering * Extensive experience in System level software development * Strong skills in debugging and trouble shooting * Rich experience on UNIX platforms * Active, Responsible, Quick-learning, Hard-working
EDUCATION	09/97 - present M.S. student in Computer Science, Cornell University GPA 4.0/4.0 Degree Expected 05/99 09/95 - 07/97 M.S. in Computer Science, Tsinghua University GPA 4.0/4.0 09/90 - 07/95 B.S. in Computer Science, Tsinghua University GPA 3.9/4.0 Bachelor in Enterprise Management (minor) GPA 4.0/4.0
TECHNICAL SKILLS	Programming Languages C, C++, JAVA, Assembly, SQL, Shells, HTML, ML, Pascal, FORTRAN Operating Systems UNIX (SUN/SOLARIS, HP/HP-UX, FreeBSD), LINUX, Windows NT, MS-DOS Networking/Internet HTTP, TCP/IP, UDP/IP, SNMP, Ethernet, UNIX IPCs and sockets, Routing Protocols (BGP, OSPF) Tools and Packages GNU tools, Visual C++, Borland C++, PVM, JDK, Matlab, Emacs, Latex, MS Office
EXPERIENCE	08/97 - present M.S. student, Dept. of Computer Science, Cornell University, Cornell Networking Research Group 02/99 - present Effect of Network Load on Internet Service Quality Focusing on two important Internet services: web browsing and voice over IP, we study the effect of network load on service quality for QOS provisioning via: * a testbed consisting of network simulator, web traffic generator, real web server, and real Internet telephony application. * studying the interaction between layering protocols and improving their collaboration. * improving adaptive schemes at the end-systems. 08/98 - 01/99 BGP Extensions for Differentiated Services Studying routing support for the differentiated services architecture, we proposed QOS extensions to BGP, the interdomain routing protocol of interest. Together with the OSPF extensions, the QOS-aware BGP protocol can be deployed to form the basis of the upcoming QOS-sensitive Internet architecture. 09/97 - 12/97 Teaching assistant for Introduction to Theory of Computing 01/98 - 05/98 Teaching assistant for Computer Graphics 05/98 - 08/98 Internship, software engineer, Siemens Pyramid Technology Inc. As a member of Generic OS group, I was involved in * fixing OS bugs related to file system reported by customers * attacking a cache performance degradation problem for one OS release * porting Vxfs2.0 to 64-bit file system to be used in a new 64-bit OS. 05/95 - 06/97 Master Student, Dept. of Computer Science, Tsinghua University Thesis Project: Fault-tolerance Mechanism for Workstation Cluster Built a fault-tolerance subsystem for workstation cluster: * on top of PVM, and application-transparent * using checkpointing and rollback recovery protocol, achieved consistent and online failure recovery of parallel applications on system failure 08/90 - 06/95 Undergraduate, Dept. of Computer Science, Tsinghua Univ. Dept. of Economics & Management (minor), Tsinghua Univ. Thesis Project: Simulating Communication Mechanism of Workstation Cluster Built a simulator for the message-passing communication in workstation cluster to test the performance of a new network interface design. Thesis Project(minor): Technical Analysis Software for Stock Market Developed a software which provided a group of technical measures for effective analysis and prediction of stock markets, with a GUI similar to commercial products.
SELECTED COURSE PROJECTS	08/98 - 01/99 Voice over IP Experimenting using Internet for telephony, and applications that straddle Internet and the telephone network: * big project of 20 people, 10 subgroups * including data exchange, signaling, gateway, directory service, pricing, and various applications such as voice email, whiteboard and multiparty audio conferencing * our data exchange subgroup focused on efficient voice packet transfer on Internet using forward error correction and adaptive playout * using ping statistics, we simulated and analyzed performance of FEC and playout algorithms on Internet paths of different delay and loss rate characteristics * our group also served as management group responsible for scheduling, coordination and integration 01/98 - 05/98 Extensible HTTP Browser Incorporating J-Kernel, a capability-based protection mechanism in Java, into Mozilla (Netscape) web browser as a security architecture. The browser becomes securely extensible in the sense that * untrusted Java applets run in seperate protection domains * applets can communicate with each other efficiently 01/98 - 05/98 Image Disorientation Auto-Recovery To detect and adjust the disorientated input images (due to camera motion) for video applications, we proposed an algorithm based on straightline features and tested its efficiency and robustness.
PAPERS	1. V. Ng, K. Wagstaff, W. Weimer, Y. Zhang, Data Exchange in Voice over IP, final report 2. Y. Zhang, Towards A Flexible Java Security Architecture, 1998, course paper 3. Yu Zhang, Y. Zhang, J. Wang, Z. Chen, Image Disorientation Auto-Recovery, 1998,course paper 4. Checkpointing and Rollback Recovery, 1997, Master Thesis 5. Y. Zhang, M. Shen, W. Zhen, Checkpointing and Rollback Recovery under UNIX, Nov. 1996, in Proceedings of the 11th National Symposium on Computer Architecture 6. Simulating Communication Mechanism of Workstation Cluster, 1995, Bachelor Thesis (Major) 7. Technical Analysis for Stock Market, 1995, Bachelor Thesis (minor)
HONORS	June 96 Excellent Master Thesis, Tsinghua Univ. 95 - 96 Siemens Scholarship, Tsinghua Univ. June 95 Excellent Graduate, Tsinghua Univ. 90 - 95 First-class Scholarship, Tsinghua Univ.