Scott A. Mitchell

Papers 2007+

See also CCIM Publications & Presentations

[Sandia National Laboratories]

For more of Scott A. Mitchell's papers see also
Google Scholar Profile
Meshing papers, 1993-2002.
Computational Geometry Triangulation Papers and Software, 1992-1994.

Pictures by me, Green Lake, Colorado, June 2006.
Improving Spatial Coverage while Preserving the Blue Noise of Point Sets
Mohamed S. Ebeida, Muhammad A. Awad, Xiaoyin Ge, Ahmed H. Mahmoud, Scott A. Mitchell, Patrick M. Knupp and Li-Yi Wei
Special issue of the Journal of Computer Aided Design dedicated to the proceedings of the 2013 SIAM Conference on Geometric and Physical Modeling, SIAM GD/SPM13.
doi
Reposting on author website with permission from Elsevier as U.S. government funded work.
Talk slides in pptx and pdf.
bibtex

Simple and Fast Interval Assignment Using Nonlinear and Piecewise Linear Objectives
Scott A. Mitchell
IMR International Meshing Roundtable 2013, Springer online proceedings
Talk slides in pptx and pdf.
bibtex

Sifted Disks
Mohamed S. Ebeida, Ahmed H. Mahmoud, Muhammad A. Awad, Mohammed A. Mohammed, Scott A. Mitchell, Alexander Rand, and John D. Owens
Eurographics 2013
Talk slides in big pptx (non-portable) and small pptx and small pdf.
bibtex
Definitive versions from Wiley and Computer Graphics Forum EG 2013 Proceedings,
sites Eurographics Digital Library and Wiley.

k-d Darts: Sampling by k-Dimensional Flat Searches
Mohamed S. Ebeida, Anjul Patney, Scott A. Mitchell, Keith R. Dalbey, Andrew A. Davidson, and John D. Owens
Transactions on Graphics, vol. 33, no. 1, 2014.
doi 10.1145/2522528 and local mirror
bibtex

SIAM UQ14 minisymposium MS17 Characterizing Sample Distribution Properties and their Impact on Experimental Design talk pptx slides and pdf slides. austin slides

Older arxiv version: arXiv:1302.3917 [cs.GR] link and local mirror and bibtex.


Variable Radii Poisson-Disk Sampling
Scott A. Mitchell, Alexander Rand, Mohamed S. Ebeida and Chadrajit Bajaj
In proceedings of 24th Canadian Conference on Computational Geometry 2012
Just-this-paper downloads: faster local mirror print and online; of conference site print and online.
The print version is 6-pages in black and white. The online version is in color with better figures and an appendix with proofs and experiments. Both versions are part of the official CCCG proceedings.
dblp CCCG 2012 proceedings and dblp bibtex
talk slides pptx and keynote and pdf --- preview slide pdf and pptx.
bibtex-print and bibtex-online

I also described this spatial statistics open problem of characterizing the spectrum of Poisson-disk packings, and Delaunay Refinement output, and defining an ideal spectrum for computer graphics. I think the 2013 paper Blue Noise Sampling with Controlled Aliasing by Heck, Schlomer, and Deussen solves a lot of the open problem, by allowing you to define a spectrum then their algorithm finds a point set achieving it.


Well-Spaced Random Point Sets for Sampling and Meshing
Scott A. Mitchell
2013 CERI Summer Seminar Series (internal link)
Overview talk to Sandia summer students interns.
talk slides in pptx
Separated-Yet-Dense Random Point Clouds for Meshing and More
Scott A. Mitchell
2012 CSRI Summer Seminar Series (internal link)
Overview talk to Sandia summer students interns.
Abstract, talk slides in pptx and pdf, pptx is better because of animations.

High-Quality Parallel Depth-of-Field Using Line Samples
Stanley Tzeng, Anjul Patney, Andrew Davidson, Mohamed S. Ebeida, Scott A. Mitchell and John D. Owens
In High Performance Graphics 2012
bibtex
IDAV link and HPG slides and ACM Portal
The definitive version in the proceedings is available at Eurographics Digital Library and Wiley.

A Simple Algorithm for Maximal Poisson-Disk Sampling in High Dimensions, version with appendix.
Mohamed S. Ebeida, Scott A. Mitchell, Anjul Patney, Andrew A. Davidson and John D. Owens
Eurographics 2012
Talk slides in pptx and pdf.
bibtex
Definitive versions from Wiley and Computer Graphics Forum EG 2012 Proceedings,
sites Eurographics Digital Library and Wiley.

Scott A. Mitchell organized the minisymposium Ensembles of Random Points for Uncertainty Quantification and gave the talk Random Poisson-Disk Samples and Meshes . In SIAM UQ12, April 2012.

Uniform Random Voronoi Meshes
Mohamed S. Ebeida and Scott A. Mitchell
Talk Slides in pptx and pdf. The pptx is better because of the animations on slides 3, 9, and 12.
20th International Meshing Roundtable and its proceedings, Oct 2011
bibtex

Random Meshes for Carbon Sequestration
Mohamed S. Ebeida, Scott A. Mitchell, Patrick M. Knupp, Vitus J. Leung, Joseph E. Bishop, Mario J. Martinez, Anjul Patney, Andrew A. Davidson, and John D. Owens
Poster 20th International Meshing Roundtable and its proceedings, Oct 2011
bibtex

Flexible Approximate Counting
Scott A. Mitchell and David M. Day,
IDEAS2011, 15th International Database Engineering & Applications Symposium , Sep 2011
Talk Slides
bibtex

Efficient and Good Delaunay Meshes from Random Points
Mohamed S. Ebeida, Scott A. Mitchell, Andrew A. Davidson, Anjul Patney, Patrick M. Knupp, and John D. Owens
Reposting on author website with permission from Elsevier
doi:10.1016/j.cad.2011.08.012
article = http://www.sciencedirect.com/science/article/pii/S0010448511002119
Special issue of Journal of Computer-Aided Design dedicated to proceedings of SIAM Conference on Geometric and Physical Modeling (GD/SPM11), 2011.
Talk Slides
bibtex

Efficient Maximal Poisson-Disk Sampling
Mohamed S. Ebeida, Anjul Patney, Scott A. Mitchell, Andrew Davidson, Patrick M. Knupp, and John D. Owens
SIGGRAPH 2011.
Talk Slides in pptx and pdf. The pptx is better because of the animations.
doi
bibtex

Geometric Comparison of Popular Mixture Model Distances
Scott A. Mitchell
Short talk at Foundations of Topological Analysis workshop in VizWeek 2010.
Sandia technical report SAND2010-6286C: pdf and bibtex-techreport.
Article in Journal of Modern Mathematics Frontier Vol. 1 Iss. 4, December 2012: local mirror of pdf, and bibtex-journal.
Long seminar talk slides in pptx and pdf. The pptx is better because of the animations.
Matlab demo files in zip or tar to go with the talk. Play seminar45.m to view the animations that go with the with the talk, as prompted on slides. Let me know if there is a file missing in the tar one; the zip file has extra files.
bibtex

Statistical Analysis of HPC Alerts and Developments in Root Cause Analysis
Joel M. Vaughan, Jon R. Stearley, Scott A. Mitchell, and George Michailidis
CSRI Summer Proceedings 2010, pages 331-342, SAND report SAND2010-8783P.
bibtex
Joel Vaughan was a summer student with me at CSRI in 2010 and 2009.


Multifractal Dimensions Using Maximal Simplices and Python Extensions to TEVA-SPOT
Jesse Berwald, David M. Day, Scott A. Mitchell, and Afra Zomorodian
CSRI Summer Proceedings 2010, pages 178-195, SAND report SAND2010-8783P.
bibtex
Afra Zomorodian spent part of his saabatical, and Jesse Berwald was a summer student, with me at CSRI in 2010.
We used topology to analyze data from optimization simulations.

Distinguishing Documents, LDRD 149045 Final Report
Scott A. Mitchell
SAND report SAND2010-6678, September 2010.
Root Cause Analysis of Errors for High Performance Computing
Joel M. Vaughan and Jon R. Stearley and Scott A. Mitchell and George Michailidis
CSRI Summer Proceedings 2009, pages 177-186, SAND report SAND2009-3083P.
bibtex
Joel Vaughan was a summer student with me at CSRI in 2010 and 2009. PhD. student of George Michailids.
Network inference: we used statistics over indirect graph data to determine the root cause of supercomputer faults.


Summary of the CSRI Workshop on Combinatorial Algebraic Topology (CAT): Software, Applications, & Algorithms
Janine C. Bennett, David M. Day, Scott A. Mitchell,
SAND report SAND2009-7777, 2009.
Scott A. Mitchell and Shawn Martin organized and chaired this stand-alone CAT workshop.

The RatNest Routing Protocol for Ad-Hoc Circuits Over Fixed Radio Networks
Scott A. Mitchell,
SAND report SAND2009-1895C, 2009.
A Large Scale Enterprise Level Systems of Systems Simulation Tool
Gio Kao and Steven Handy,
INFORMS October 2009.
CoreSim is a component of SoSAT; presentation acknowledges Scott A. Mitchell and other CoreSim developers.
CoreSim / Logistics and System-of-Systems
Scott A. Mitchell
CCIM impact document, April 2009.
R&D for Computational Cognitive and Social Models: Foundations for Model Evaluation through Verification and Validation (Final LDRD Report),
McNamara, Laura A., Timothy G. Trucano, George A. Backus, Scott A. Mitchell,
SAND Report SAND2008-6453, September 2008.
Distance-Avoiding Sets for Extremely Low-Bandwidth Authentication,
Michael J. Collins and Scott A. Mitchell, mjcolli@sandia.gov,
In Proceedings of the 5th international Conference on Sequences and their Applications (Lexington, KY, USA, September 14 - 18, 2008). S. W. Golomb, M. G. Parker, A. Pott, and A. Winterhof, Eds. Lecture Notes In Computer Science, vol. 5203. Springer-Verlag, Berlin, Heidelberg, 230-238.
DOI
Int'l Conf. on Sequences and Their Applications, SETA 2008 webpage, and online proceedings.
Also SAND report SAND2007-4543C.


LDRD 102610 Final Report New Processes for Innovative Microsystems Engineering with Predictive Simulation
Scott A. Mitchell, Ann E. Mattsson, and Stephen W. Thomas,
SAND report SAND2007-4888, August 2007.



My son Evan with a trout he caught at Green Lake fly fishing.

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