Publications in Natural Language Processing and Information Retrieval:

• Negation-based transfer learning for improving biomedical Named Entity Recognition and Relation Extraction.
  Hermenegildo Fabregat, Andrés Duque, Juan Martínez-Romo, Lourdes Araujo:
  J. Biomedical Informatics 138: 104279 (2023)
  keywords: negation, natural language processing, deep learning, entity recognition
  [Abstract][Full text] [bib]
  


• RoBERTime: A novel model for the detection of temporal expressions in Spanish.
  Alejandro Sánchez-de-Castro-Fernández, Lourdes Araujo, Juan Martínez-Romo:
  Leng. Natural 70: 39-51 (2023)
  keywords: natural language processing, temproral expressions, deep learning
  [Abstract][Full text] [bib]
  


• Detecting Signs of Non-suicidal Self-Injury in Psychiatric Medical Reports Using Language Analysis.
  Juan Martínez-Romo, Lourdes Araujo, Blanca Reneses, Julia Sevilla-Llewellyn-Jones, Ignacio Martínez-Capella, Germán Seara-Aguilar
  Procesamiento del Lenguaje Natural 69: 129-140 (2022)
  keywords: self-harm, machine learning, deep learning, artificial intelligence
  [Abstract][Full text] [bib]
  


• Discovering HIV related information by means of association rules and machine learning.
  Lourdes Araujo, Juan Martinez-Romo, Otilia Bisbal, Ricardo Sanchez-de-Madariaga
  Scientific Reports 12(1): 18208 (2022)
  keywords: hiv, aids, association rules, artificial intelligence, machine learning
  [Abstract][Full text] [bib]
  


• A keyphrase-based approach for interpretable ICD-10 code classification of Spanish medical reports.
  Andres Duque, Hermenegildo Fabregat, Lourdes Araujo, Juan Martínez-Romo
  Artificial Intelligence in Medicine 121: 102177 (2021)
  keywords: natural language processing, keyphrase extracción, icd10 codes, classification
  [Abstract][Full text] [bib]


• Understanding and Improving Disability Identification in Medical Documents.
  Hermenegildo Fabregat, Juan Martínez-Romo, Lourdes Araujo
  IEEE Access 8: 155399-155408 (2020)
  [Abstract][Full text] [bib]


• Deep-Learning Approach to Educational Text Mining and Application to the Analysis of Topics' Difficulty.
  Lourdes Araujo, Fernando López-Ostenero, Juan Martínez-Romo, Laura Plaza
  IEEE Access 8: 218002-218014 (2020)
  [Abstract][Full text] [bib]


• Genetic programming for natural language processing.
  Lourdes Araujo
  Genet. Program. Evolvable Mach. 21(1-2): 11-32 (2020)
  [Abstract][Full text] [bib]


• Discovering related scientific literature beyond semantic similarity: a new co-citation approach.
  Oscar Rodriguez-Prieto, Lourdes Araujo, Juan Martínez-Romo
  Scientometrics 120(1): 105-127 (2019)
  [Abstract][Full text] [bib]


• Can deep learning techniques improve classification performance of vandalism detection in Wikipedia?
  Juan R. Martinez-Rico, Juan Martínez-Romo, Lourdes Araujo
  Eng. Appl. Artif. Intell. 78: 248-259 (2019)
  [Abstract][Full text] [bib]


• Deep learning approach for negation trigger and scope recognition.
  Hermenegildo Fabregat, Lourdes Araujo, Juan Martínez-Romo
  Procesamiento del Lenguaje Natural 62: 37-44 (2019)
  [Abstract][Full text] [bib]


• Deep neural models for extracting entities and relationships in the new RDD corpus relating disabilities and rare diseases.
  Hermenegildo Fabregat, Lourdes Araujo, Juan Martínez-Romo
  Comput. Methods Programs Biomed. 164: 121-129 (2018)
  [Abstract][Full text] [bib]


• Discovering taxonomies in Wikipedia by means of grammatical evolution.
  Lourdes Araujo, Juan Martinez-Romo, Andres Duque
  Soft Comput. 22(9): 2907-2919 (2018)
  [Abstract][Full text] [bib]


• Co-occurrence graphs for word sense disambiguation in the biomedical domain.
  Andres Duque Fernandez, Mark Stevenson, Juan Martinez-Romo, Lourdes Araujo
  Artificial Intelligence in Medicine 87: 9-19 (2018)
  [Abstract][Full text] [bib]


• Can multilinguality improve Biomedical Word Sense Disambiguation?
  Andres Duque, Juan Martinez-Romo, Lourdes Araujo
  Journal of Biomedical Informatics, 64: 320-332 (2016)
  [Abstract][Full text] [bib]


• SemGraph: Extracting keyphrases following a novel semantic graph-based approach.
  Juan Martinez-Romo, Lourdes Araujo, Andres Duque
  Journal of the Association for Information Science and Technology, 67(1): 71-82 (2016)
  [Abstract][Full text] [bib]


• Pattern-based unsupervised parsing method.
  Jesus Santamaria, Lourdes Araujo
  Natural Language Engineering, 22: 397-422 (2016)
  [Abstract][Full text] [bib]


• A Tagged Corpus for Automatic Labeling of Disabilities in Medical Scientific Papers.
  Carlos Valmaseda, Juan Martinez-Romo, Lourdes Araujo
  Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC)(2016)
  [Abstract][Full text] [bib]


• Choosing the best dictionary for Cross-Lingual Word Sense Disambiguation.
  Andres Duque, Juan Martinez-Romo, Lourdes Araujo
  Knowl.-Based Syst. 81: 65-75 (2015)
  [Abstract][Full text] [bib]


• CO-graph: A new graph-based technique for cross-lingual word sense disambiguation.
  Andres Duque Fernandez, Lourdes Araujo, Juan Martinez-Romo
  Natural Language Engineering 21(5): 743-772 (2015)
  [Abstract][Full text] [bib]


• Grammatical Evolution for Identifying Wikipedia Taxonomies.
  Lourdes Araujo, Juan Martinez-Romo, Andrés Duque Fernandez
  Genetic and Evolutionary Computation Conference, GECCO (2015)
  [Abstract][Full text] [bib]


• Extracción no supervisada de relaciones entre medicamentos y efectos adversos.
  Andrés Duque Fernandez, Juan Martinez-Romo, Lourdes Araujo
  Procesamiento del Lenguaje Natural 55: 83-90 (2015)
  [Abstract][Full text] [bib]


• Detecting malicious tweets in trending topics using a statistical analysis of language.
  Juan Martinez-Romo, Lourdes Araujo.
  Expert Syst. Appl. 40(8): 2992-3000 (2013)
  [Abstract][Full text] [bib]


• Answering questions about European legislation.
  Álvaro Rodrigo, Joaquín Pérez-Iglesias, Anselmo Peñas, Guillermo Garrido, Lourdes Araujo.
  Expert Syst. Appl. 40(15): 5811-5816 (2013)
  [Abstract][Full text] [bib]


• Semi-supervised Constituent Grammar Induction Based on Text Chunking Information.
  Jesus Santamaria, Lourdes Araujo.
  Int. Conf. on Computational Linguistics and Intelligent Text Processing (CICLing), 258-269 (2013)
  [Abstract][Full text] [bib]


• Local-based semantic navigation on a networked representation of information.
  José A. Capitán, Javier Borge-Holthoefer, Sergio Gómez, Juan Martinez-Romo, Lourdes Araujo, Jos6eacute; A. Cuesta, Alex Arenas.
  PLoS ONE, Volume 7, Issue 8, e43694 (2012)
  [Abstract][Full text] [bib]


• Updating Broken Web Links: an Automatic Recommendation System.
  Juan Martinez-Romo, Lourdes Araujo.
  Information Processing & Management, 48(2), 183-203 (2012)
  [Abstract][Full text] [bib]


• Disentangling categorical relationships through a graph of co-occurrences.
  Juan Martinez-Romo, Lourdes Araujo, Javier Borge-Holthoefer, Alex Arenas, José A. Capitán, José A. Cuesta.
  Physical Review E, 84(4), 1-8 (2011)
  [Abstract][Full text] [bib]


• Graph-based Word Clustering Applied to Question Answering and Reading Comprehension Tests.
  Juan Martinez-Romo, Lourdes Araujo.
  Clef (2011)
  [Abstract][Full text] [bib]


• Automatic detection of trends in time-stamped sequences: an evolutionary approach.
  Lourdes Araujo and Juan J. Merelo.
  Soft Computing, 14(3), pp. 211-227 (2010)
  [Abstract][Full text] [bib]


• Standard Deviation as a Query Hardness Estimator
  Joaquín Pérez-Iglesias, Lourdes Araujo.
  Proc. Int. Symposium on String Processing and Information Retrieval (SPIRE 10)
  LNCS 6393, pp. 207-212, Springer (2010)
  [Abstract][Full text] [bib]


• Evaluation of Query Performance Prediction Methods by Range
  Joaquín Pérez-Iglesias, Lourdes Araujo.
  Proc. Int. Symposium on String Processing and Information Retrieval (SPIRE 10)
  LNCS 6393, pp. 225-236, Springer (2010)
  [Abstract][Full text] [bib]


• Identifying Patterns for Unsupervised Grammar Induction.
  Jesús Santamaría, Lourdes Araujo.
  Proc. of the Fourteenth Conference on Computational Natural Language Learning (conll 2010)
  Association for Computational Linguistics, pp. 38-45 (2010)
  [Abstract][Full text] [bib]


• Evolving natural language grammars without supervision.
  Lourdes Araujo, Jesús Santamaría.
  Proc. IEEE Congress on Evolutionary Computation (CEC 2010)
  IEEE Press, pp 1-8 (2010)
  [Abstract][Full text] [bib]


• Training a classifier for the selection of good query expansion terms with a genetic algorithm.
  Lourdes Araujo, Joaquín Pérez-Iglesias.
  Proc. IEEE Congress on Evolutionary Computation (CEC 2010)
  IEEE Press, pp 1-8 (2010)
  [Abstract][Full text] [bib]


• Web spam detection: new classification features based on qualified link analysis and language models.
  Lourdes Araujo, Juan Martinez-Romo.
  IEEE Transactions on Information Forensics and Security 5(3): 581-590 (2010)
  [Abstract][Full text][bib]


• Analyzing Information Retrieval Methods to Recover Broken Web Links.
  Juan Martinez-Romo, Lourdes Araujo.
  Proc. European Conf. on Information Retrieval (ECIR 2010)
  LNCS 5993, pp. 26-37, Springer (2010)
  [Abstract][Full text][bib]


• Structure of morphologically expanded queries: A genetic algorithm approach.
  Lourdes Araujo, Hugo Zaragoza, José R. Pérez-Agüera, Joaquín Pérez-Iglesias.
  Data Knowledge Engeneering 69(3): 279-289 (2010)
  [Abstract][Full text][bib]


• A Question Answering System based on Information Retrieval and Validation.
  Álvaro Rodrigo, Joaquín Pérez-Iglesias, Anselmo Peñas, Guillermo Garrido, Lourdes Araujo
  Cross Language Evaluation Forum (CLEF 2010), Notebook Papers/LABs/Workshops (2010)
  [Abstract][Full text] [bib]


• Stochastic Parsing and Evolutionary Algorithms.
  Lourdes Araujo.
  Applied Artificial Intelligence 23(4): 346-372 (2009)
  [Abstract][Full text] [bib]


• Web spam identification through language model analysis.
  Juan Martinez-Romo, Lourdes Araujo.
  Proc. International Workshop on Adversarial Information Retrieval on the Web (AIRWeb 2009)
  ACM International Conference Proceeding Series, pp. 21-28 (2009).
  [Abstract][Full text] [bib]


• Ranking List Dispersion as a Query Performance Predictor.
  Joaquín Pérez-Iglesias, Lourdes Araujo.
  Proc. Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval (ICTIR 2009)
  LNCS 5766, pp. 371-374, Springer (2009)
  [Abstract][Full text] [bib]


• Retrieving broken web links using an approach based on contextual information.
  Juan Martinez-Romo, Lourdes Araujo.
  Proc. ACM Conference on Hypertext and Hypermedia (Hypertext 2009)
  ACM Press, pp. 351-352 (2009).
  [Abstract][Full text] [bib]


• Approaching Question Answering by Means of Paragraph Validation.
  Álvaro Rodrigo, Joaquín Pérez-Iglesias, Anselmo Peñas, Guillermo Garrido, Lourdes Araujo
  10th Workshop of the Cross-Language Evaluation Forum, CLEF 2009
  LNCS 6241, pp. 245-252, Springer (2009)
  [Abstract][Full text] [bib]


• Information Retrieval Baselines for the ResPubliQA Task.
  Joaquín Pérez-Iglesias, Guillermo Garrido, Álvaro Rodrigo, Lourdes Araujo, Anselmo Peñas
  10th Workshop of the Cross-Language Evaluation Forum, CLEF 2009
  LNCS 6241, pp. 253-256, Springer (2009)
  [Abstract][Full text] [bib]


• Web People Search Disambiguation using Language Model Techniques.
  Juan Martinez-Romo, Lourdes Araujo.
  2nd Web People Search Evaluation Workshop (WePS 2009), 18th WWW Conference
  [Abstract][Full text] [bib]


• Highly accurate error-driven method for noun phrase detection.
  Lourdes Araujo, J. Ignacio Serrano.
  Pattern Recognition Letters, 29(4), pp. 547-557 (2008)
  [Abstract][Full text] [bib]


• NectaRSS, an intelligent RSS feed reader.
  Juan J. Samper, Pedro A. Castillo, Lourdes Araujo, Juan J. Merelo, Oscar Cordón, Fernando Tricas.
  Journal of Network and Computer Applications, 31(4), pp. 793-806 (2008).
  [Abstract][Full text] [bib]


• Improving Query Expansion with Stemming Terms: A New Genetic Algorithm Approach.
  Lourdes Araujo, Jose R. Pérez Agüera.
  Proc. European Conference on Evolutionary Computation in Combinatorial Optimisation (EvoCop 2008).
  LNCS 4972, pp 182-193, Springer-Verlag (2008).
  [Abstract][Full text] [bib]


• Exploiting Morphological Query Structure Using Genetic Optimisation.
  Jose R. Pérez Agüera, Hugo Zaragoza, Lourdes Araujo.
  Proc. Int. Conference on Applications of Natural Language to Information Systems (NLDB 2008).
  LNCS 5039, pp 124-135, Springer-Verlag (2008).
  [Abstract][Full text] [bib]


• Comparing and Combining Methods for Automatic Query Expansion.
  Jose R. Pérez Agüera, Lourdes Araujo
  Research in Computing Science, 33, pp. 177-188 (2008).
  [Abstract][Full text] [bib]


• Recommendation System for Automatic Recovery of Broken Web Links.
  Juan Martinez-Romo, Lourdes Araujo
  Proc. IBERAMIA 2008,
  LNCS 5290, pp. 302-311, Springer (2008).
  [Abstract][Full text] [bib]


• UNED at WebCLEF 2008: Applying High Restrictive Summarization, Low Restrictive Information Retrieval and Multilingual Techniques.
  Enrique Amigó, Juan Martinez-Romo, Lourdes Araujo, Víctor Peinado.
  Proc CLEF 2008,
  LNCS 5706, pp. 798-801, Springer (2009).
  [Abstract][Full text] [bib]


• How evolutionary algorithms are applied to statistical natural language processing.
  Lourdes Araujo.
  Artif. Intell. Rev. 28(4): 275-303 (2007).
  [Abstract][Full text] [bib]


• A genetic algorithm for dynamic modelling and prediction of activity in document streams.
  Lourdes Araujo, Juan J. Merelo Güervós
  Proc. of the Genetic and Evolutionary Computation Conference (GECCO 2007), pp. 1896-1903, ACM (2007).
  [Abstract][Full text] [bib]


• Enriching Thesauri with Hierarchical Relationships by Pattern Matching in Dictionaries.
  Lourdes Araujo, Jose R. Pérez Agüera.
  Proc. Int. Conf. on Natural Language Processing (FINTAL 2006),
  LNCS 4139, pp. 268-279, Springer-Verlag (2006).
  [Abstract][Full text] [bib]


• Query Expansion with an Automatically Generated Thesaurus.
  Jose R. Pérez Agüera, Lourdes Araujo.
  Proc. Int. Conf. on Intelligent Data Engineering and Automated Learning (IDEAL 2006)
  LNCS 4224, pp. 771-778, Springer-Verlag (2006).
  [Abstract][Full text] [bib]


• Multiobjective Genetic Programming for Natural Language Parsing and Tagging.
  Lourdes Araujo.
  Proc. Int. Conf. on Parallel Problem Solving from Nature, (PPSN IX)
  LNCS 4193, pp. 302-311, Springer-Verlag (2006).
  [Abstract][Full text] [bib]


• Genetic algorithm for burst detection and activity tracking in event streams.
  Lourdes Araujo, Jose A. Cuesta, Juan J.Merelo.
  Proc. Int. Conf. on Parallel Problem Solving from Nature, (PPSN IX)
  LNCS 4193, pp. 433-442, Springer-Verlag (2006).
  [Abstract][Full text] [bib]


• Natural Language Tagging with Genetic Algorithms.
  Enrique Alba, Gabriel Luque, Lourdes Araujo.
  Information Processing Letters, 100(5), pp. 173-182 (2006).
  [Abstract][Full text] [bib]


• Statistical Recognition of Noun Phrases in Unrestricted Text.
  J. Ignacio Serrano, Lourdes Araujo.
  Proc. of the 6th International Symposium on Intelligent Data Analysis (IDA 2005)
  LNCS 3646, pp. 397-408, Springer-Verlag (2005).
  [Abstract][Full text] [bib]


• Evolutionary Algorithm for Noun Phrase Detection in Natural Language Processing.
  J. Ignacio Serrano, Lourdes Araujo.
  Proc. of the 2005 IEEE Congress on Evolutionary Computation (CEC 2005)
  pp. 640-647, IEEE Press (2005).
  [Abstract][Full text] [bib]


• A Probabilistic Chart Parser implemented with an Evolutionary Algorithm.
  Lourdes Araujo.
  International Conference on Intelligent Text Processing and Computational Linguistics CICLing-2004.
  LNCS 2945. Springer-Verlag. p. 81-92 (2004)
  [Abstract] [Full text] [bib]


• Genetic Programming for Natural Language Parsing.
  Lourdes Araujo.
  European Conference on Genetic ProgrammingIntelligent EuroGP-2004.
  LNCS 3003. Springer-Verlag. p. 230-239 (2004)
  [Abstract] [Full text] [bib]


• Symbiosis of Evolutionary Techniques and Statistical Natural Language Processing.
  Lourdes Araujo.
  IEEE Transactions on Evolutionary Computation. IEEE Press.  8(1), (2004). p. 14-27.
  [Abstract][Full text] [bib]


• Metaheuristics for Natural Language Tagging.
  Lourdes Araujo, Gabriel Luque, Enrique Alba
  Proc. of the Int. Genetic and Evolutionary Computation Conference
  (GECCO 2004), LNCS 3102, pp. 889-900, Springer-Verlag (2004).
  [Abstract][Full text] [bib]


• Studying the Advantages of a Messy Evolutionary Algorithm for Natural Language Tagging.
  Lourdes Araujo.
  Proc. of the Int. Genetic and Evolutionary Computation Conference (GECCO 2003).
  LNCS 2724. Springer-Verlag, p. 1951-1962 (2003).  
  [Abstract] [Full text] [bib]


• A Parallel Evolutionary Algorithm for Stochastic Natural Language Parsing.
  Lourdes Araujo.
  International Conference on Parallel Problem Solving from Nature - PPSN VII
  Lecture Notes in Computer Science 2439, pp. 700-709, Springer-Verlag, (2002).
  [Abstrac][Full text] [bib]


• Part-of-Speech Tagging with Evolutionary Algorithms.
  Lourdes Araujo.
  International Conference on Intelligent Text Processing and Computational Linguistics CICLing-2002.
  Lecture Notes in Artificial Intelligence 2276, pp. 230-239. Springer-Verlag (2002).
  [Abstrac][Full text] [bib]


• Evolutionary Parsing for a Probabilistic Context Free Grammar.
  Lourdes Araujo.
  Proc. International Conference on Rough Sets and Current Trends in Computing
  (RSCTC-2000) , LNCS 2005, pp. 590-597, Springer-Verlag, (2000).
  [Abstract][Full text] [bib]