Publications

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Information retrieval for children: Search Behavior and Solutions

I have been awarded the degree of Phd (Cum Laude) after successfully defending my PhD thesis at the University of Twente on February 14, 2014. The first contribution of this thesis provides a characterization, on a large scale, of the ...

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Analysis of Search and Browsing Behavior of Young Users on the Web

by Sergio Duarte Torres, Ingmar Weber and Djoerd Hiemstra  In this journal paper we expanded the study presented in paper What and How Children Search on the Web in two directions. Firstly, We provide a more detailed analysis of ...

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Query Recommendation in the Domain of Information for Children

by Sergio Duarte Torres, Djoerd Hiemstra, Ingmar Weber, Pavel Serdyukov.  Children represent an increasing part of web users. One of the key problems that hamper their search experience is their limited vocabulary, their difficulty to use the right keywords, and ...

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Vertical Selection in the Information Domain of Children

by Sergio Duarte Torres, Djoerd Hiemstra and Theo Huibers  In this paper we explore the vertical selection methods in aggregated search in the specific domain of topics for children between 7 and 12 years old. A test collection consisting ...

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Cross-lingual alignment and completion of Wikipedia templates

by Gosse Bouma, Sergio Duarte Torres and Zahurul Islam.  For many languages, the size of Wikipedia is an order of magnitude smaller than the English Wikipedia. We present a method for cross-lingual alignment of template and infobox attributes in Wikipedia. ...

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Visual Exploration of Health Information for Children

by Frans van der Sluis, Sergio Duarte Torres, Djoerd Hiemstra, Betsy van Dijk, Frea Kruisinga  Children experience several difficulties retrieving informa- tion using current Information Retrieval (IR) systems. Particularly, chil- dren struggle to find the right keywords to construct queries ...

A Novel Image Encryption Scheme Based on a Generalized Chinese Remainder Theorem

by Sergio Duarte Torres, David Becerra Romero, Luis Niño and Yoan Pinzon. In this paper, a novel method for image encryption based on a Generalized Chinese Remainder Theorem (GCRT) is presented. The proposed method is based on the work ...

A Model for Resource Assignment to Transit Routes in Bogota Transportation System Transmilenio

by Sergio Duarte Torres, David Becerra Romero and Luis Niño. In this work, a model based on genetic algorithms, queue theory and graph theory for route planning in a mass transportation system is presented. Most important features of the ...

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A novel ab-initio genetic-based approach for protein folding prediction

by Sergio Duarte Torres, David Becerra, Luis Niño and Yoan Pinzon.  In this paper, a model based on genetic algorithms for protein folding prediction is proposed. The most important features of the proposed approach are: i) Heuristic secondary structure information is ...

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