**Contact Information:**

Wayne Oldford

Wayne Oldford's personal website

## Research interests

Statistical reasoning, exploratory data analysis, data visualization, and the development of interactive computational environments that support these activities, comprise the broad areas of Professor Oldford's research interests.

Much of this kind of research has come to be known in recent years under such names as statistical learning and data mining, the latter being used mainly when data sets are so large that computational considerations figure importantly in the statistical methodology that can be applied. The goal is typically to uncover previously unknown, unanticipated, or unusual relationships and structures within a set of data. The data set could consist for example of a set of text documents, financial transactions, or gene expressions; characteristically the data will contain many items each of which will have many measured variables or dimensions.

Professor Oldford and his students have developed and applied data mining methodology to such applications as the real-time clustering of document snippets returned from web searches, pharmaceutical drug discovery, and predicting whether a patient carries a genetic mutation for colon cancer based on their family history. Other students under his supervision have carried out more theoretical investigations into dimension reduction and into a variety of algorithms for finding like groups (or clustering) in data.

Professor Oldford has developed methodology and software for carrying out interactive clustering, the approach being to design and provide a computing environment where the data analyst can search for structure, freely mixing different automatic clustering methods with one another and in combination with interactive visualization tools for high-dimensional data. These tools are added to the quantitative programming environment called Quail that has been developed over many years by Professor Oldford with his colleagues and students. Quail was designed primarily as an experimental computational laboratory for prototyping interactive methods and for expressing data analysis strategies in software.

Related to computational structure and methods for interactive data analysis, but somewhat removed from software implementation, is Professor Oldford's research on the philosophical structure of statistical reasoning. More generally still, Professor Oldford's scholarly interests include the role of scientific and statistical reasoning in public policy.

## Education/biography

Professor Oldford's professional statistical career began at Statistics Canada where he was a survey methodologist. After his graduate training, he joined the Center for Computational Research in Economics and Management Science of the Sloan School at Massachusetts Institute of Technology (MIT) where he taught statistics, conducted research, and was statistical consultant to the speech recognition group at MIT. Over the years Professor Oldford has consulted privately on statistical and computational problems with a variety of organizations including publishing houses, medical and dental researchers, AT&T Bell Laboratories, Dupont, and the U.S. Federal Reserve Board. More recently, he has been a consultant to some local Waterloo high-tech companies including Primal Fusion and Terepac.

Professor Oldford was one of three founders of the Society for Artificial Intelligence & Statistics, which has been holding biennial AISTATS workshops since 1990. He has been active in a variety of other national and international organizations including being elected to the council of the International Association for Statistical Computing and the board of directors of the Statistical Society of Canada.

Professor Oldford has served as an associate editor for the *Journal of the American Statistical Association*, the *Journal of Computational Graphics and Statistics*, the *International Statistical Review*, and *Statistics and Computing*, where he also served as editor-in-chief from 2001 to 2006.

Professor Oldford has been on numerous conference program committees, including chairing the fourth international workshop on AI and Statistics and, from 2002 to 2005, co-editing the series of interdisciplinary papers on "Statistics, Science and Public Policy" from the conferences of the same name.

Since joining the University of Waterloo, Professor Oldford has served as associate chair of Statistics and Actuarial Science, as the director of the Centre for Computational Mathematics in Industry and Commerce, and as Associate Dean (Computing) for the Faculty of Mathematics.

## Selected publications

- R.W. Oldford and A. Waddell (2011) ”Visual Clustering of High-dimensional Data by Navigating Low-dimensional Spaces”
*Proc. 58th World Statistical Congress, 2011, Dublin (Session STS057)*, pp. 3294-3303.
- A. Waddell and R.W. Oldford (2011) "RnavGraph: A visualization tool for navigating through high-dimensional data"
* **Proc. 58th World Statistical Congress, 2011, Dublin (Session IPS117)*, pp. 1852-1860.
- C.B. Hurley and R.W. Oldford (2011). “Graphs as navigational infrastructure for high dimensional data spaces”
*Computational Statistics*, 26, No. 4, pp. 585-612
- C.B. Hurley and R.W. Oldford (2011). “Eulerian tour algorithms for data visualization and the PairViz package”
*Computational Statistics*, 26, No. 4, pp. 613-633.
- C.B. Hurley and R.W. Oldford (2010). “Pairwise display of high dimensional information via Eulerian tours and Hamiltonian decompositions” Journal of Computational and Graphical Statistics, 19, No. 4, pp. 861-886
- A.M. Herzberg and R.W. Oldford (2005), editors.
**Statistics, Science and Public Policy IX: Government, ****Science and Politics**, Queen’s University, Kingston, 269 pages.
- J.C. Bailar III, H.B. Dinsdale, B.A. Farbey, A.M. Herzberg, K.W. James, and R.W. Oldford (2004).
**Statistics, Science and Public Policy: Recommendations for Government and the Scientific Community**. Report, ix + 14 pages.
- A.M. Herzberg and R.W. Oldford (2004), editors.
**Statistics, Science and Public Policy VIII: Science, ****Ethics and the Law**, Queen’s University, Kingston, 234 pages.
- A.M. Herzberg and R.W. Oldford (2003), editors.
**Statistics, Science and Public Policy VII: Health, Environment, and Globalization**, Queen’s University, Kingston, 254 pages.
- A.M. Herzberg and R.W. Oldford (2002), editors.
**Statistics, Science and Public Policy VI: Science ****and Responsibility**, Queen’s University, Kingston, 280 pages.
- R.J. Mackay and R.W. Oldford (2000). Scientific method, statistical method, and the speed of light.
*Statistical Science*, 15 3:254-278.
- R. W. Oldford, (1997). “Computational Thinking for Statisticians: Training by Implementing Statistical Strategy,”
*Proc. 29th Symp. Interface on Computing and Statistics*.
- P. Cheeseman and R.W. Oldford (1994), editors.
**Selecting Models from Data: Artificial Intelligence ****and Statistics IV,** Springer-Verlag LNS, 89, 487 pages.
- R.W. Oldford and S.C. Peters (1988), "DINDE: Towards more sophisticated statistical software",
*SIAM Journal of Scientific and Statistical Computing, 9(1**)*, 191–211.