Research

Our research areas are focused on:

  • High Performance Computing.
  • Distributed Systems.
  • Distributed Simulations.
  • Information Retrieval.

Name


Information System on Biodiversity for Aysén (SIB-Aysén)

Project


Government of Chile. Fondo de Innovación para la Competitividad, FIC-R Región de Aysén

Years


2015-2016

Responsible


Roberto Uribe-Paredes

Name


Parallel Computing for Information Retrieval (DI15-0031)

Project


DIUFRO Project of Universidad de La Frontera

Years


2015-2016

Responsible


Ricardo J. Barrientos



Developments

Name


Real Query Log from the Similarity Search Engine MUFIN

Source


This query log was published in the publication [1]. The authors are the Head of the DISA Laboratory, and also one of the members of the Drago-HPC Research Group and his advisors in his PhD.

Description


This is a query log obtained from an in-production Similarity Search Engine called MUFIN [2].
Regarding the format of the file of this query log, each line represents a query, which is an image. Each image (or query) contains 6 elements. The first element is just an ID. The following five elements are the MPEG descriptors: (1) Colour Layout (dimension=12), (2) Colour Structure (dimension=64), (3) Edge Histogram (dimension=80), (4) Scalable Colour (dimension=64), and (5) Region Shape (dimension=36).
All the 6 elements (ID and MPEG descriptors) are separated with a tabulator ('\t').
There are 68,919 queries in this file. The first line is not a query, it is just a description of the previous 6 elements.

[1] R.J. Barrientos, J.I. Gómez, C. Tenllado, M. Prieto, P. Zezula. "Multi-level clustering on metric spaces using a multi-GPU platform". In 19th International European Conference on Parallel and Distributed Computing (Euro-Par 2013). LNCS, vol.8097, pp.216-228. Springer. DOI 10.1007/978-3-642-40047-6_24. Germany, 2013.

  PDF

  BIBTEX

[2] D. Novak, M. Batko, P. Zezula. "Generic similarity search engine demonstrated by an image retrieval application". In 32nd ACM SIGIR Conference on Research and Development in Information Retrieval. p. 840. ACM, Boston, MA, USA (2009).

  PDF

  BIBTEX


Resources


The query log is available [here].

Name


Crawling the Chilean Web

Source


Thesis of the program Computer Science Engineering at Catholic University of Maule

Description


The main objective of this thesis is to analyze the features and behavior of the Chilean Web. For this we need to visit and retrieve the Web sites with .cl domain. We will compare our results to previous state-of-the-art studies about the Chilean Web.

Authors


Ramiro Urbina (advisor: Ricardo J. Barrientos)

Resources


The resources are in this [link].