Advisors

Peter Eades

Peter Eades

Technical Advisor

Peter Eades is a Research Professor at the University of Sydney. His interest in graph visualization began in the early 1980s, and since then he has centered his research on graph drawing. Over the past thirty years, Peter has written over a hundred papers and coauthored the book Graph Drawing: Algorithms for the Visualization of Graphs. He has also been awarded the title of "Distinguished Researcher" by the National Information Communications Technology Research Centre of Excellence in Australia (NICTA). Currently, he is working on visualization of dynamic data sets, visualization of uncertainty, and algorithms for increasing the crossing angles in graph drawings. Peter's recent major projects include topological approaches for three-dimensional graph drawing and new methods for interactive visualization of large microarray data sets. He has performed consulting projects for the Australian government and a number of other industries, including Bioinformatics, Defense, Financial Services, and Software Engineering.

Tom Sawyer Software has a long-standing relationship with Peter and has collaborated with him on many advisory projects. Peter was the keynote speaker at the 2009 Tom Sawyer Software User Conference, where he gave a presentation on how visualization methods can help users cope with large data sets. When asked why he joined Tom Sawyer Software's Technical Advisory Board, Peter stated, "I believe that Tom Sawyer Software is the leader in graph visualization and has a group of very intelligent and innovative people."

Peter holds Ph.D. and Bachelor of Arts degrees in Mathematics from the Australian National University.

Paulis Kikusts

Paulis Kikusts

Technical Advisor

Before his time at Tom Sawyer Software, Paulis was a well-respected professor at the University of Latvia, working in the Faculty of Physics and Mathematics. He was also a leading researcher of the university, working in the Institute of Mathematics and Computer Science. Paulis is an expert in graph theory and computational geometry. Paulis began developing graph drawing algorithms as early as 1991. In 1994, he was involved with the GRADE project, which was originally built for Siemens but continued its life as a tool for students at the University of Latvia. The GRADE system was one of the most sophisticated graph layout and diagramming projects ever built. In the 1990s, Paulis got involved in the graph drawing community by publishing papers and winning prizes in graph drawing contests. During his collaboration with Tom Sawyer Software, Paulis built the new Hierarchical Layout, which would remain his main area of work for several years. He also developed the Polyomino Packing algorithm to lay out disconnected components and isolated nodes. Paulis’ work is recognized through numerous publications. Paulis was instrumental in training Tom Sawyer Software’s new generation of layout engineers as well. Retired now, Paulis has returned to the University of Latvia and continues to teach classes.

Paulis studied at the Latvia State University under Peter Stuchka, earning his university graduation diploma in Mathematics. He also has a Candidate degree of Science, and a doctorate degree in Mathematics.

Ioannis G. Tollis

Ioannis G. Tollis

Technical Advisor

Ioannis G. Tollis is a professor of computer science, Director of the Center for Information and Communication Technologies, and Director of the Data Processing Laboratory at the University of Crete in Greece. He is also affiliated with the Institute of Computer Science at Foundation for Research and Technology in Greece (FORTH–ICS), where he was the head of the Biomedical Informatics Laboratory (BMI lab) from 2005 to 2010.

Professor Tollis received his Ph.D. degree in computer science from the University of Illinois at Urbana-Champaign in January 1988. He joined the faculty of the University of Texas at Dallas in December 1987, where he was a professor of computer science until 2004. He has published eight books, over 175 journal and conference papers, and has given more than 70 invited lectures worldwide. His research interests are in the design, analysis, and visualization of networks, modeling and visualization of biomedical data and networks, graph drawing, information visualization, data analytics and security, and algorithms and applications.

Professor Tollis' research has been funded by numerous agencies and companies. He has a U.S. patent and several of his projects have been licensed by companies for commercial distribution. He is a founding editor and executive committee member of the electronic Journal of Graph Algorithms and Applications, and was editor-in-chief from 1997 to 2013. He is also member of the editorial board of several journals. Additionally, he was the organizer and program committee chair of the 16th International Symposium on Graph Drawing in 2008, co-organizer and program committee co-chair of the International Symposium on Graph Drawing in 1994, and has served as a member of program committees of several international conferences.