- "High-Precision Arithmetic and Experimental Mathematics," presentation to Sun Microsystems, Berkeley, CA (Jan 2009). PDF
- "High-Precision Numerical Integration on High-Performance Computers," High-Dimensional Approximation 2009 (HDA'09), invited talk, Sydney, Australia (Feb 2009). PDF
- "Experimental Mathematics, Multicore Processors and Highly Parallel Computing," SIAM Computational Science and Engineering Conference, invited talk, Miami, FL (Mar 2009). PDF
- "High-Precision Arithmetic and Mathematical Physics," invited lecture at Computer Algebra and Particle Physics (CAPP) school, DESY, Zeuthen, Germany (Mar 2009); similar talk given at ETH-Zurich, Zurich, Switzerland (Apr 2009). PDF
- "High-Precision Arithmetic and Experimental Mathematics," invited seminar talk, Grinnell College, Grinnell, Iowa (Apr 2009): PDF
- "High-Precision Arithmetic and Experimental Mathematics," invited talk, East Coast Computer Algebra Day, Kingstown, RI (May 2009): PDF
- "High-Precision Arithmetic and Mathematical Physics," invited lecture, ENRAGE09, Max-Planck Institute, Dresden, Germany (May 2009): PDF
- "Misleading Performance Claims in Parallel Computations," invited talk, 2009 Design Automatation Conference, San Francisco (Jul 2009): PDF
- "Computing: The Third Mode of Scientific Discovery," invited convocation talk, Grinnell College, Grinnell, Iowa (Apr 2009); updated version given at University of Newcastle, Australia (Aug 2009): PDF
- "Experimental Mathematics Meets Mathematical Physics," invited lecture, CARMA Workshop on Multidimensional Numerical Integration and Special Function Evaluation, University of Newcastle, Australia (Aug 2009); also given at Macquarie University (Dept. of Mathematics), Sydney, Australia (Aug 2009); updated version presented to Fields Institute Workshop on Experimentation in Number Theory, Simon Fraser University, Burnaby, BC Canada (Sep 2009): PDF
- "Experimental Mathematics, Multicore Processors and Highly Parallel Computing," University of Sydney (Dept. of Mathematics), Sydney, Australia, invited seminar (Sep 2009), also given at Macquarie University (Dept. of Electrical Engineering), Sydney, Australia (Sep 2009). PDF
- "Computing as the Third Mode of Scientific and Mathematical Discovery," University of Delaware (Dept. of Computer Science), Wilmington, DE, invited seminar (Mar 2010), also given as keynote address at SharcNet Users Group Meeting, Toronto, Canada (May 2010); also given at the Barcelona Supercomputer Center (Jun 2010). PDF
- "High-Precision Computation: Mathematical Physics and Dynamics," Joint SIAM/RSME-SCM-SEMA Meeting on Emerging Topics in Dynamical Systems and Partial Differential Equations, minisymposium talk Barcelona, Spain (June 2010). PDF
- "High-Precision, Highly Parallel Numerical Integration," University of Zaragoza (Dept. of Mathematics), Zaragoza, Spain, invited seminar (Jun 2010). PDF
- "A Mathematical and Data-Driven Approach to Cybersecurity," SIAM Annual Conference, minisymposium talk, Pittsburgh, PA (Jul 2010). PDF
- "High-Precision Numerical Integration and Experimental Mathematics," University of Newcastle (CARMA center), Newcastle, Australia (18 Aug 2010). PDF
- "The PSLQ Algorithm: Techniques for Efficient Computation," University of Newcastle (CARMA center), Newcastle, Australia (24 Aug 2010). PDF
- "Hand-to-Hand Combat with Thousand-Digit Integrals," Western Number Theory Conference, Provo, UT (17 Dec 2010). PDF
- "12 Ways to Fool the Masses: Fast Forward to 2011," Manycore and Accelerator-based High-performance Scientific Computing Workshop, University of California, Berkeley (26-29 Jan 2011). PDF
- "A Quartically Convergent Square Root Algorithm" (talk on Indian mathematics), Workshop on Computational and Analytical Mathematics in Honour of Jonathan Borwein's 60th Birthday, Simon Fraser University, Burnaby, BC, Canada (16-20 May 2011). PDF
- "Performance Tuning of Science Applications," Discovery 2015: HPC and Cloud Computing Workshop, Berkeley, CA (15-24 Jun 2011). Also given at Extreme Computing and Its Applications for the Nuclear Physics/Applied Mathematics/Computer Science Interface, Seattle, WA (28-29 Jun 2011). PDF
- "Creationism and Intelligent Design: False Friends," International Society for the History, Philosophy, and Social Studies of Biology (ISHPSSB 2011), Salt Lake City, UT (10-15 Jul 2011). PDF
- "Performance Research and the SUPER Project," FastMath Workshop, Livermore, CA (7-8 Nov 2011). PDF
- "Nonnormality of the Stoneham Constants," West Coast Number Theory Conference, Pacific Grove, CA (17 Dec 2011). PDF
- "Normal and Nonnormal Mathematical Constants," University of Newcastle Mathematics Colloquium, Newcastle, NSW, Australia, 29 Aug 2012. PDF
- "Hand-to-Hand Combat with Thousand-Digit Integrals," Workshop on Computational and Analytical Mathematics in Honour of Jonathan Borwein's 60th Birthday, Simon Fraser University, Burnaby, BC, Canada (16-20 May 2011); updated version at University of Newcastle Access Grid Colloquium, Newcastle, NSW, Australia (3 Sep 2012). PDF
- "High-precision Computation and Reproducibility," Reproducibility in Computational and Experimental Mathematics (ICERM workshop), Brown University, Providence, RI (9-14 Dec 2012). PDF
- "Lattice Sums Arising from the Poisson Equation," West Coast Number Theory Conference, Pacific Grove, CA (16-20 Dec 2012). PDF
- "Walking on Real Numbers," West Coast Number Theory Conference, Pacific Grove, CA (16-20 Dec 2012). PDF
- "Computational Discovery of Number Theory Identities for Mathematical Physics Integrals," AMS-MAA-SIAM Annual Joint Meeting, San Diego, CA (10-14 Jan 2013). PDF
- "High-Precision Computation: Applications and Challenges," U. C. Davis Computer Science seminar, Davis, CA (7 Mar 2013). PDF
- "High-Precision Computation: Applications and Challenges," keynote talk, 21st IEEE International Symposium on Computer Arithmetic, Austin, TX (7-10 Apr 2013). PDF
- "PSLQ: An algorithm to discover mathematical identities," U.C. Davis Mathematics Seminar, Davis, CA (16 Apr 2013). PDF
- "Numerical Reproducibility in High-Performance Computing," International Supercomputing Conference, Leipzig, Germany (16-20 Jun 2013). PDF
- "Conquering Numerical Error," Mathematics of Planet Earth, Melbourne, Australia (8-12 Jul 2013). PDF
- "Lattice sums arising from the Poisson equation," U.C. Berkeley Number Theory Seminar, Berkeley, CA (11 Sep 2013). PDF
- "Twelve ways to fool the masses: Fast forward to 2013," Scalable Approaches to High Performance and High Productivity Computing (ScalPerf'13), Bertinoro, Italy (22--27 Sep 2013). PDF
- "Conquering Numerical Error," Supercomputing 2013, Session on High-Precision Arithmetic, Denver, CO (20 Nov 2013). PDF
- "Computation and theory of extended Mordell-Tornheim-Witten sums," West Coast Number Theory Conference, Pacific Grove, CA (15-18 Dec 2013). PDF
- [with Marcos Lopez de Prado] "How to spot backtest overfitting," Battle of the Quants, New York City, 25 Mar 2014. PDF
- "Are the digits of pi random?," U.C. Davis Math Club, Davis, CA (30 Apr 2014). PDF
- "Using high-precision arithmetic to conquer numerical error," U.C. Davis Mathematics Seminar, Davis, CA (14 May 2014). PDF
- "Fooling the masses: Reproducibility in high-performance computing," ACM International Conference on Computing Frontiers 2014, Cagliari, Italy (20-22 May 2014). Similar talk given at the Australian Mathematical Sciences Institute National Seminar Series, University of Newcastle, Australia (15 Jul 2014). PDF
- "Big data computing: Science or pseudoscience?," Australian Mathematical Sciences Institute National Seminar Series, University of Newcastle, Australia (11 Jul 2014). PDF
- "Scientific integrity in mathematical finance," Workshop on Optimization, Nonlinear Analysis, Randomness and Risk, University of Newcastle, Australia (12 Jul 2014). PDF
- "Computational challenges in experimental mathematics," Challenges in 21st Century Experimental Mathematical Computation (ICERM workshop), Brown University (22 Jul 2014). PDF
- "Reproducibility in scientific computing," Reproducibility: Principles, Practices, Problems, Zurich, Switzerland (29 Sep 2014). PDF
- "Expectations on fractal sets," West Coast Number Theory Conference, Pacific Grove, CA (16-19 Dec 2014). PDF
- "Financial mathematics and big data computing: Science and pseudoscience," invited colloquium talk, ETH Zurich, Switzerland (25 Mar 2015). PDF
- "Petascale computing and high-precision arithmetic: Applications and challenges," invited colloquium talk, ETH Zurich, Switzerland (26 Mar 2015). PDF
- "A thread-safe, high-performance arbitrary precision package," colloquium talk, University of Newcastle, Australia (12 Mar 2015). PDF
- "Backtesting in the world of quantitative finance: Limitations, opportunities and scrutiny needed," Quant Invest 2015, London, England (30 Sep 2015). PDF
- "Discovery of large Poisson polynomials using a new arbitrary precision package," U.C. Berkeley numerical analysis seminar, Berkeley, CA (13 Oct 2015). Similar talk given at U.C. Davis Computer Science colloquium (5 Nov 2015). PDF
- "Numerical reproducibility in high-performance computing," CARMA workshop on reproducibility, University of Newcasatle, Australia (13 Nov 2015). PDF
- "Reproducibility and statistical overfitting in mathematical finance," Workshop on Mathematical Aspects of Behavioural Economics and Finance, University of Newcastle, Australia (13 Nov 2015). PDF
- "Big data and its sins," Workshop on Mathematical Aspects of Behavioural Economics and Finance, University of Newcastle, Australia (14 Nov 2015). PDF
- "The NAS Parallel Benchmarks: History and impact," Test of Time Award talk, Supercomputing 2015, Austin, TX (17 Nov 2015). PDF
- "Numerical reproducibility in high-performance computing," Workshop on Numerical Reproducibility, Supercomputing 2015, Austin, TX (20 Nov 2015). PDF
- "Computer discovery of large Poisson polynomials with 51,000-digit computations," West Coast Number Theory Symposium, Pacific Grove, CA (16 Dec 2015). PDF
- "Computer discovery of large Poisson polynomials," U.C. Berkeley Number Theory Seminar, Berkeley, CA (16 Mar 2016). PDF
- "Computer discovery and analysis of large Poisson polynomials," Computationally Assisted Mathematical Discovery and Experimental Mathematics, London, Ontario, Canada (12-15 May 2016). PDF
- "Computer discovery and analysis of large Poisson polynomials using 64,000-digit arithmetic," Number Theory Down Under, Newcastle, Australia (23-26 Sep 2016). PDF
- "Mathematics, computing and the acceleration of scientific progress," Hamilton College Plant Lecture, Clinton, NY (3 Nov 2016). PDF
- "Stock portfolio design and backtest overfitting," Hamilton College, Clinton, NY (3 Nov 2016). PDF
- "Computer discovery of new mathematical facts and formulas," Hamilton College, Clinton, NY (3 Nov 2016). PDF
- "On the normality of Stoneham numbers, pi and log(2)," Normal Numbers: Arithmetic, Computational and Probabilistic Aspects, Erwin Schrodinger Institute, University of Vienna, Austria (14-18 Nov 2016). PDF
- "Computation and experimental evaluation of Mordell-Tornheim-Witten sum derivatives," West Coast Number Theory Conference, Pacific Grove, CA (16-20 Dec 2016). PDF
- "Computer discovery and analysis of large Poisson polynomials using 64,000-digit arithmetic," Jonathan Borwein Remembrance Day, Paris, France (10 Feb 2017). PDF
- "Experimental mathematics and the omega function," mathematics seminar, U.C. Davis (17 Apr 2017). PDF
- "Fooling the masses in 2017: Why the scientific computing community must still be vigilant," IPDPS-17, Orlando, FL (1-2 Jun 2016). PDF
- "Computation and analysis of arbitrary digits of Pi and other mathematical constants," Levi Conant Prize lecture, Worcester Polytechnic Institute, Worcester, MA (16 Sep 2017). PDF
- "Computer discovery and analysis of large Poisson polynomials," keynote, Jonathan Borwein Commemorative Conference, University of Newcastle, Newcastle, Australia (25-30 Sep 2017). PDF
- "Stock portfolio design and backtest overfitting," Jonathan Borwein Commemorative Conference, University of Newcastle, Newcastle, Australia (25-30 Sep 2017). PDF
- "What is experimental mathematics?," All-day seminar on experimental mathematics, University of Newcastle, Newcastle, Australia (3 Oct 2017). PDF
- "Pi and normality," All-day seminar on experimental mathematics, University of Newcastle, Newcastle, Australia (3 Oct 2017). PDF
- "High-precision arithmetic and PSLQ," All-day seminar on experimental mathematics, University of Newcastle, Newcastle, Australia (3 Oct 2017). PDF
- "Experimental mathematics and integration," All-day seminar on experimental mathematics, University of Newcastle, Newcastle, Australia (3 Oct 2017). PDF
- "Ancient Indian mathematics," All-day seminar on experimental mathematics, University of Newcastle, Newcastle, Australia (3 Oct 2017). PDF
- "Computer discovery and analysis of large Poisson polynomials," All-day seminar on experimental mathematics, University of Newcastle, Newcastle, Australia (3 Oct 2017). PDF
- "Backtest overfitting in stock fund design and market prediction," Risk Management Seminar, University of California, Berkeley (17 Oct 2017). PDF
- "Getting financial predictions right," MediaX Conference, Stanford University, Stanford, CA (1 Nov 2017). PDF
- "Fine tuning and Fermi's paradox," A Fractured Universe? Fundamental Physics, Symmetry and Life, University of Sydney, Sydney, Australia (30 Nov - 1 Dec 2017). PDF
- "High-performance computing (and the dangers of overfitting) in finance," Artificial Intelligence and Data Science: Capital Markets, New York City, NY (6-7 Dec 2017). PDF
- "Computation of the omega function," West Coast Number Theory Conference, Pacific Grove, CA (16-20 Dec 2017). PDF
- "Variable precision in modern floating-point computing," ARM seminar, Cambridge, UK (19 Sep 2018). PDF
- "Quantum computing performance: Standards now or scandals later?," D-Wave seminar, Burnaby, BC, Canada (20 Jan 2019). PDF
- "Reproducibility and variable precision computing," Computational Reproducibility at Exascale 2019 (CRE2019), Denver, CO (17 Nov 2019). PDF
- "Variable precision computing: Applications and challenges," ICERM Workshop on Variable Precision in Mathematical and Scientific Computing, ICERM, Brown University (6-8 May 2020). PDF
- "Reproducible scientific computing: Progress and challenges," Correctness 2020: 4th International Workshop on Software Correctness for HPC Applications (11 Nov 2020). PDF
- "Finding large Poisson polynomials using four-level variable precision," Correctness 2021: 5th International Workshop on Software Correctness for HPC Applications (14 Nov 2021). PDF
- "Why financial research is prone to false statistical discoveries," U.C. Berkeley Risk Seminar (25 Jan 2022); similar talk for Minnesota Center for Financial and Actuarial Mathematics (18 Mar 2022). PDF
- "Experimental mathematics: Serious research and great fun," Euler Circle (6 Jun 2022). PDF