Section: Bilateral Contracts and Grants with Industry

International Initiatives

Inria Associate Teams

COMET

• Title: Computational Methods for the analysis of high-dimensional data

• Inria principal investigator: Steve Y. Oudot

• International Partner:

  • Institution: Stanford University (United States)

  • Laboratory: Computer Science Department

  • Researcher: Leonidas J. Guibas

• International Partner:

  • Institution: Ohio State University (United States)

  • Laboratory: Computer Science and Engineering

  • Researcher: Yusu Wang

• Duration: 2011 - 2013

• See also: http://geometrica.saclay.inria.fr/collaborations/CoMeT/index.html

• CoMeT is an associate team between the Geometrica group at Inria, the Geometric Computing group at Stanford University, and the Computational Geometry group at the Ohio State University. Its focus is on the design of computational methods for the analysis of high-dimensional data, using tools from metric geometry and algebraic topology. Our goal is to extract enough structure from the data, so we can get a higher-level informative understanding of these data and of the spaces they originate from. The main challenge is to be able to go beyond mere dimensionality reduction and topology inference, without the need for a costly explicit reconstruction. To validate our approach, we intend to set our methods against real-life data sets coming from a variety of applications, including (but not restricted to) clustering, image or shape segmentation, sensor field monitoring, shape classification and matching. The three research groups involved in this project have been active contributors in the field of Computational Topology in the recent years, and some of their members have had long-standing collaborations. We believe this associate team can help create new synergies between these groups.

Visits of International Scientists

Exterior research visitors

• Misha Belkin (Ohio State University).

• Mikhail Bessmeltsev (University of British Columbia).

• Mark Blome (Zuse-Institut Berlin).

• Benjamin Burton (School of Mathematics and Physics, University of Queensland, Brisbane).

• Dengfeng Chai (Zhejiang University).

• Mathieu Desbrun (Caltech).

• Paweł Dłotko (Jagiellonian University, Krakow).

• Leo Guibas (Stanford University).

• Sun Jian (Tsinghua University, Beijing).

• Leif Kobbelt (RWTH Aachen).

• Sylvain Lazard (EPI vegas ).

• Michael Lesnick (Stanford University).

• Jeff Phillips (University of Utah).

• Alla Sheffer (University of British Columbia).

• Vin de Silva (Pomona College).

• Gert Vegter (Johan Bernoulli Institute, Groningen University).

• Yusu Wang (Ohio State University).

Visiting Phd students

• Ricard Campos (six months)

  • Topic: Reconstruction of 3D underwater scenes

  • Institution: University of Girona (Spain)

• Andrea Tagliasacchi (three months)

  • Topic: surface reconstruction through optimal transportation

  • Institution: Simon Fraser University (Canada)