Page type: student

Jussi Myllymaki;Jussi Myllymaki; Research Assistant; Computer Sciences Department; University of Wisconsin; 1210 West Dayton Street; Madison, WI 53706-1685; telephone: (608) 262-6627; fax: (608) 262-9777; email: jussi@cs.wisc.edu;Research Summary;I am interested in the performance analysis of DBMS operations on;advanced tape and disk technology, including disk and tape arrays. I'm;currently studying how to buffer large datasets from tertiary storage;to disk and memory when such data are used for data exploration and;visualization (the DEVise;project). My advisor is Prof. Miron;Livny.;My recent work includes improving the performance of relational joins;of large volumes of disk and tape-resident data (see publication list;below), and applying a log-structured organization to tertiary storage;to solve problems associated with the diverse characteristics and;functional limitations of tertiary media. Our recent paper on data;visualization and exploration discusses data and metadata management;issues when large and complex data sets are involved.;Refereed Publications;Efficient Buffering for Concurrent Disk and;Tape I/O (with Miron Livny), Proceedings of Performance;'96 - The International Conference on Performance Theory,;Measurement and Evaluation of Computer and Communication Systems,;October 1996.;Integrated Visualization of Parallel Program;Performance Data (with Karen L. Karavanic, Miron Livny and Barton;P. Miller), Proceedings of the Third Workshop on Environments and;Tools for Parallel Scientific Computing, August 1996;Log-Structured Organization for Tertiary;Storage (with Daniel A. Ford), Proceedings of the;International Conference on Data Engineering, February 1996. Also;available as IBM Almaden Research Report 9941.;Visual Exploration of Large Data Sets (with;Miron Livny and Raghu Ramakrishnan), Proceedings of SPIE - The;International Society for Optical Engineering, January 1996.;Disk-Tape Joins: Synchronizing Disk and;Tape Access (with Miron Livny), Proceedings of the ACM;SIGMETRICS Conference, May 1995.;Submitted for Publication;DEVise: Integrated Querying and Visualization of Large Datasets,;M. Livny, R. Ramakrishnan, K. Beyer, G. Chen, D. Donjerkovic,;S. Lawande, J. Myllymaki, and K. Wenger, submitted to the 1997;ACM SIGMOD Conference.;Relational Joins for Data on Tertiary Storage, Jussi Myllymaki and;Miron Livny, submitted to the 1997 International Conference on Data;Engineering.;Other Publications;Disk-Tape Joins: Synchronizing Disk and Tape;Access (with Miron Livny), University of Wisconsin, CS Department,;Technical Report 1270, 1995.;Joins on Tapes: Project Report, Master's Degree;Project Report, University of Wisconsin, CS Department, 1993.;Applying the Client-Server Model in Computer Network;Architectures, Master's Thesis, Helsinki University of Technology,;Department of Industrial Management, 1991. In Finnish.;Other Documents;Implementation and Performance Analysis of R-Tree;Algorithms (with Jeff Schwarz and Yoav Weiss), class report, 1993.;Experiences with Implementing a Log-Structured File;System (with Trishul Chilimbi and Yoav Weiss), class report, 1992.;Overview of current tape technologies and products;Overview of RAID technology suppliers and products;Some frequently needed links (FNL);Unified Technical Report Search;Adaptec SCSI adapters;(home);;Digital PCs;and;Technical Journal;and; Whitepapers;(home);;IBM Technology and Research;and;CyberJournal;Quantum Digital Linear Tape;and;DLT FAQ;and;Whitepapers;(home);;Sun Solaris;and;SparcStations;and;Technical Reports;(home);;SCSI FAQ;and;Storage FAQ;and other;Usenet FAQs;Many other of my links are found here.;jussi@cs.wisc.edu;