Contact Information

Mailing/Courier Address

Universidad de Talca
Computer Science Department
Km. 1 Camino a los Niches, Curicó.
CHILE

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E-Mail

Home Page

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Biography

I was born in Concepción, Chile, on September 1977, and received my B.Sc. and Eng. degrees from the Universidad de Concepción, Chile, in 2002. Recently, I have obtained my doctoral degree at Carleton University, Canada. Since 2003 I've been working as a faculty member of the Department of Computer Science at the Universidad de Talca, Chile.

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Education

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Grants and Scholarships

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Research

My research interests include, but are not limited to:

My Doctoral Thesis, entitled "Self Organizing Maps Constrained by Data Structures" is advocated on the generation of enhacements to the Self-Organizing Maps (SOM). It explores avenues to improve the SOM capabilities by defining SOM-based strategies that learn the data distribution and its underlying structure in a more accurate manner. Particular interest is placed on a subset of such variants which utilize a tree as their underlying data structure.

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Publications

Scientific Journal Publications

  1. César A. Astudillo and B. John Oommen. Imposing Tree-based Topologies onto Self Organizing Maps. Information Sciences, 2011, 181, pp. 3798-3815. doi:10.1016/j.ins.2011.04.038.

Conference Papers

  1. César A. Astudillo and B. John Oommen. 2011. Semi-supervised classification using tree-based self-organizing maps. In Proceedings of the 24th international conference on Advances in Artificial Intelligence (AI'11), Dianhui Wang and Mark Reynolds (Eds.). Springer-Verlag, Berlin, Heidelberg, 21-30. doi:10.1007/978-3-642-25832-9_3.
  2. Sterling Somers, Jonathan Gagné, César Astudillo, and Jim Davies. 2011. Using semantic similarity to predict angle and distance of objects in images. In Proceedings of the 8th ACM conference on Creativity and cognition (C&C '11). ACM, New York, NY, USA, 217-222. doi:10.1145/2069618.2069655.
  3. Carolinne Torres, César A. Astudillo, Matthew Bardeen and Alfredo Candia. Algorithms for Interval Data Minmax Regret Paths. 22nd International Joint Conference on Artificial Intelligence (IJCAI-2011), Barcelona, Spain, 2011.
  4. César A. Astudillo and B. John Oommen. On Using Adaptive Binary Search Trees to Enhance Self Organizing Maps. 22nd Australasian Joint Conference on Artificial Intelligence (AI 2009), 2009, p199-209. This paper won the Best Paper Award of the Conference. [Abstract] [BibTeX][PDF]
  5. César A. Astudillo and B. John Oommen. A Novel Self Organizing Map Which Utilizes Imposed Tree-based Topologies. 6th International Conference on Computer Recognition Systems. 2009. This talk was a Plenary/Keynote Talk at the Conference. [Abstract] [BibTeX][PDF]
  6. Alfredo Candia and César A. Astudillo. Algoritmos para el Problema de las n-reinas. Proceedings of the 30th Latin-American Conference on Informatics. 2004. (Spanish) [Abstract] [BibTeX][PDF]
  7. Federico Meza, Ruth Garrido, César A. Astudillo. Un Lenguaje de Bajo Nivel como Apoyo al Aprendizaje en el Primer Curso de Programación de las Carreras de Ingeniería. Revista Electrónica de la Sociedad Chilena de Ciencia de la Computación. Vol. 4, Núm. 1, 2003. ISSN 0717-4276. (Spanish) [Abstract] [BibTeX][PDF]
  8. Alfredo Candia and César A. Astudillo. Un Algoritmo de Búsqueda Local para el Problema de las n-reinas. V Workshop en Inteligencia Artificial. 2004. (Spanish)

Theses

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Work

Up to the present days, my professional experience has been linked to the academic world.

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Press

Some press about me that I like.

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