Alfonso Ortega

According to our database1, Alfonso Ortega authored at least 115 papers between 1996 and 2019.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.

Timeline

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Bibliography

2019
Cooling Effectiveness of a Data Center Room under Overhead Airflow via Entropy Generation Assessment in Transient Scenarios.
Entropy, 2019

2018
AMIC: Affective multimedia analytics with inclusive and natural communication.
Procesamiento del Lenguaje Natural, 2018

Text-to-Pictogram Summarization for Augmentative and Alternative Communication.
Procesamiento del Lenguaje Natural, 2018

Estimation of the Number of Speakers with Variational Bayesian PLDA in the DIHARD Diarization Challenge.
Proceedings of the Interspeech 2018, 2018

Phonetic Variability Influence on Short Utterances in Speaker Verification.
Proceedings of the Fourth International Conference, 2018

In-domain Adaptation Solutions for the RTVE 2018 Diarization Challenge.
Proceedings of the Fourth International Conference, 2018

Differentiable Supervector Extraction for Encoding Speaker and Phrase Information in Text Dependent Speaker Verification.
Proceedings of the Fourth International Conference, 2018

Wide Residual Networks 1D for Automatic Text Punctuation.
Proceedings of the Fourth International Conference, 2018

A Recurrent Neural Network Approach to Audio Segmentation for Broadcast Domain Data.
Proceedings of the Fourth International Conference, 2018

GE and Semantics.
Proceedings of the Handbook of Grammatical Evolution, 2018

2017
Domain Adaptation of PLDA Models in Broadcast Diarization by Means of Unsupervised Speaker Clustering.
Proceedings of the Interspeech 2017, 2017

Tied Hidden Factors in Neural Networks for End-to-End Speaker Recognition.
Proceedings of the Interspeech 2017, 2017

2016
Bayesian Networks to Model the Variability of Speaker Verification Scores in Adverse Environments.
IEEE/ACM Trans. Audio, Speech & Language Processing, 2016

Analysis of speech quality measures for the task of estimating the reliability of speaker verification decisions.
Speech Communication, 2016

ASLP-MULAN: Audio speech and language processing for multimedia analytics.
Procesamiento del Lenguaje Natural, 2016

Towards Quantitative Networks of Polarized Evolutionary Processors: A Bio-Inspired Computational Model with Numerical Evaluations.
Proceedings of the Trends in Practical Applications of Scalable Multi-Agent Systems, 2016

Bottleneck Based Front-End for Diarization Systems.
Proceedings of the Advances in Speech and Language Technologies for Iberian Languages, 2016

2015
Intelligibility Assessment and Speech Recognizer Word Accuracy Rate Prediction for Dysarthric Speakers in a Factor Analysis Subspace.
TACCESS, 2015

A model of quantum-von Neumann hybrid cellular automata: principles and simulation of quantum coherent superposition and decoherence in cytoskeletal microtubules.
Quantum Information & Computation, 2015

Albayzín-2014 evaluation: audio segmentation and classification in broadcast news domains.
EURASIP J. Audio, Speech and Music Processing, 2015

Distributed Simulation of NEPs Based On-Demand Cloud Elastic Computation.
Proceedings of the Advances in Computational Intelligence, 2015

Spoofing detection with DNN and one-class SVM for the ASVspoof 2015 challenge.
Proceedings of the INTERSPEECH 2015, 2015

Variational Bayesian PLDA for speaker diarization in the MGB challenge.
Proceedings of the 2015 IEEE Workshop on Automatic Speech Recognition and Understanding, 2015

2014
Low bit rate compression methods of feature vectors for distributed speech recognition.
Speech Communication, 2014

Audio scrambling technique based on cellular automata.
Multimedia Tools Appl., 2014

Audio segmentation-by-classification approach based on factor analysis in broadcast news domain.
EURASIP J. Audio, Speech and Music Processing, 2014

ViVoLab and CVLab - MediaEval 2014: Violent Scenes Detection Affect Task.
Proceedings of the Working Notes Proceedings of the MediaEval 2014 Workshop, 2014

Factor analysis with sampling methods for text dependent speaker recognition.
Proceedings of the INTERSPEECH 2014, 2014

Confidence Measures in Automatic Speech Recognition Systems for Error Detection in Restricted Domains.
Proceedings of the Advances in Speech and Language Technologies for Iberian Languages, 2014

A Preliminary Study of Acoustic Events Classification with Factor Analysis in Meeting Rooms.
Proceedings of the Advances in Speech and Language Technologies for Iberian Languages, 2014

2013
Quality Assessment for Speaker Diarization and Its Application in Speaker Characterization.
IEEE Trans. Audio, Speech & Language Processing, 2013

TIMPANO: Technology for complex Human-Machine conversational interaction with dynamic learning.
Procesamiento del Lenguaje Natural, 2013

The I3a speaker recognition system for NIST SRE12: post-evaluation analysis.
Proceedings of the INTERSPEECH 2013, 2013

A new Bayesian network to assess the reliability of speaker verification decisions.
Proceedings of the INTERSPEECH 2013, 2013

Suprasegmental information modelling for autism disorder spectrum and specific language impairment classification.
Proceedings of the INTERSPEECH 2013, 2013

Prosodic features and formant modeling for an ivector-based language recognition system.
Proceedings of the IEEE International Conference on Acoustics, 2013

Segmentation-by-classification system based on factor analysis.
Proceedings of the IEEE International Conference on Acoustics, 2013

Different Approaches for Development Tools for Natural Computers - Grammar Driven vs. Model Driven Approaches.
Proceedings of the ICAART 2013, 2013

2012
Digital Image Scrambling Using 2D Cellular Automata.
IEEE MultiMedia, 2012

Towards the Automatic Programming of NEPs: A First Case Study.
Proceedings of the Highlights on Practical Applications of Agents and Multi-Agent Systems, 2012

The BLZ Submission to the NIST 2011 LRE: Data Collection, System Development and Performance.
Proceedings of the INTERSPEECH 2012, 2012

Reliability Estimation of the Speaker Verification Decisions Using Bayesian Networks to Combine Information from Multiple Speech Quality Measures.
Proceedings of the Advances in Speech and Language Technologies for Iberian Languages, 2012

Voice Pathology Detection on the Saarbrücken Voice Database with Calibration and Fusion of Scores Using MultiFocal Toolkit.
Proceedings of the Advances in Speech and Language Technologies for Iberian Languages, 2012

Score Level versus Audio Level Fusion for Voice Pathology Detection on the Saarbrücken Voice Database.
Proceedings of the Advances in Speech and Language Technologies for Iberian Languages, 2012

2011
Bayesian Networks for Discrete Observation Distributions in Speech Recognition.
IEEE Trans. Audio, Speech & Language Processing, 2011

The Spanish Network on Biomolecular and Biocellular Computing: Bio-inspired Natural Computing in Spain.
ERCIM News, 2011

Towards the Automatic Programming of NEPs.
Proceedings of the Foundations on Natural and Artificial Computation, 2011

Distributed Simulation of P Systems by Means of Map-Reduce: First Steps with Hadoop and P-Lingua.
Proceedings of the Advances in Computational Intelligence, 2011

Partitioning of Two-Speaker Conversation Datasets.
Proceedings of the INTERSPEECH 2011, 2011

I3A Language Recognition System for Albayzin 2010 LRE.
Proceedings of the INTERSPEECH 2011, 2011

Hierarchical Audio Segmentation with HMM and Factor Analysis in Broadcast News Domain.
Proceedings of the INTERSPEECH 2011, 2011

Intra-session variability compensation and a hypothesis generation and selection strategy for speaker segmentation.
Proceedings of the IEEE International Conference on Acoustics, 2011

Parallel Simulation of NEPs on Clusters.
Proceedings of the 2011 IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology, 2011


2010
Unsupervised Data-Driven Feature Vector Normalization With Acoustic Model Adaptation for Robust Speech Recognition.
IEEE Trans. Audio, Speech & Language Processing, 2010

Towards the Automatic Programming of H Systems: jHsys, a Java H System Simulator.
Proceedings of the Trends in Practical Applications of Agents and Multiagent Systems, 2010

Confidence measures for speaker segmentation and their relation to speaker verification.
Proceedings of the INTERSPEECH 2010, 2010

Non-linear predictive vector quantization of feature vectors for distributed speech recognition.
Proceedings of the INTERSPEECH 2010, 2010

The Role of Keeping "Semantic Blocks" Invariant - Effects in Linear Genetic Programming Performance.
Proceedings of the ICEC 2010 - Proceedings of the International Conference on Evolutionary Computation, [part of the International Joint Conference on Computational Intelligence IJCCI 2010], Valencia, Spain, October 24, 2010

Coevolutionary Architectures with Straight Line Programs for Solving the Symbolic Regression Problem.
Proceedings of the ICEC 2010 - Proceedings of the International Conference on Evolutionary Computation, [part of the International Joint Conference on Computational Intelligence IJCCI 2010], Valencia, Spain, October 24, 2010

Model Regularization in Coevolutionary Architectures Evolving Straight Line Code.
Proceedings of the Computational Intelligence, 2010

PNEPs for Shallow Parsing - NEPs Extended for Parsing Applied to Shallow Parsing.
Proceedings of the ICAART 2010 - Proceedings of the International Conference on Agents and Artificial Intelligence, Volume 2, 2010

2009
Towards the Validation of Plagiarism Detection Tools by Means of Grammar Evolution.
IEEE Trans. Evolutionary Computation, 2009

A Christiansen Grammar for Universal Splicing Systems.
Proceedings of the Methods and Models in Artificial and Natural Computation. A Homage to Professor Mira.s Scientific Legacy, 2009

PNEPs, NEPs for Context Free Parsing: Application to Natural Language Processing.
Proceedings of the Bio-Inspired Systems: Computational and Ambient Intelligence, 2009

Real-time live broadcast news subtitling system for Spanish.
Proceedings of the INTERSPEECH 2009, 2009

Graphical models for discrete hidden Markov models in speech recognition.
Proceedings of the INTERSPEECH 2009, 2009

Local projections and support vector based feature selection in speech recognition.
Proceedings of the INTERSPEECH 2009, 2009

Differential vector quantization of feature vectors for distributed speech recognition.
Proceedings of the INTERSPEECH 2009, 2009

Unsupervised training scheme with non-stereo data for empirical feature vector compensation.
Proceedings of the INTERSPEECH 2009, 2009

On the Solutions of NP-Complete Problems by Means of jNEP Run on Computers.
Proceedings of the ICAART 2009 - Proceedings of the International Conference on Agents and Artificial Intelligence, Porto, Portugal, January 19, 2009

2008
Capturing Local Variability for Speaker Normalization in Speech Recognition.
IEEE Trans. Audio, Speech & Language Processing, 2008

Parallel Metropolis-Montecarlo Simulation for Potts Model using an Adaptable Network Topology based on Dynamic Graph Partitioning.
Proceedings of the 7th International Symposium on Parallel and Distributed Computing (ISPDC 2008), 2008

Feature vector normalization with combined standard and throat microphones for robust ASR.
Proceedings of the INTERSPEECH 2008, 2008

2007
The Normalized Compression Distance Is Resistant to Noise.
IEEE Trans. Information Theory, 2007

Reduced-Complexity Delayed-Decision Algorithm for Context-Based Image Processing Systems.
IEEE Trans. Image Processing, 2007

Christiansen Grammar Evolution: Grammatical Evolution With Semantics.
IEEE Trans. Evolutionary Computation, 2007

Cepstral Vector Normalization Based on Stereo Data for Robust Speech Recognition.
IEEE Trans. Audio, Speech & Language Processing, 2007

Evaluation of the combined use of MEMLIN and MLLR on the non-native adaptation task of hiwire project database.
Proceedings of the INTERSPEECH 2007, 2007

On the jointly unsupervised feature vector normalization and acoustic model compensation for robust speech recognition.
Proceedings of the INTERSPEECH 2007, 2007

Automatic generation of benchmarks for plagiarism detection tools using grammatical evolution.
Proceedings of the Genetic and Evolutionary Computation Conference, 2007

A simple genetic algorithm for music generation by means of algorithmic information theory.
Proceedings of the IEEE Congress on Evolutionary Computation, 2007

Robust speech recognition with on-line unsupervised acoustic feature compensation.
Proceedings of the IEEE Workshop on Automatic Speech Recognition & Understanding, 2007

2006
Study of time and frequency variability in pathological speech and error reduction methods for automatic speech recognition.
Proceedings of the INTERSPEECH 2006, 2006

Local transformation models for speech recognition.
Proceedings of the INTERSPEECH 2006, 2006

Time-dependent cross-probability model for multi-environment model based LInear normalization.
Proceedings of the INTERSPEECH 2006, 2006

Stability Control in a Two-Channel Speech Reinforcement System for Vehicles.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

2005
An adaptive digital method of imbalances cancellation in LINC transmitters.
IEEE Trans. Vehicular Technology, 2005

Nonlinear distortion cancellation using LINC transmitters in OFDM systems.
TBC, 2005

Speech Reinforcement System for Car Cabin Communications.
IEEE Trans. Speech and Audio Processing, 2005

Attribute Grammar Evolution.
Proceedings of the Artificial Intelligence and Knowledge Engineering Applications: A Bioinspired Approach: First International Work-Conference on the Interplay Between Natural and Artificial Computation, 2005

Acoustic feedback cancellation in speech reinforcement systems for vehicles.
Proceedings of the INTERSPEECH 2005, 2005

Augmented state space acoustic decoding for modeling local variability in speech.
Proceedings of the INTERSPEECH 2005, 2005

Robust speech recognition in cars using phoneme dependent multi-environment linear normalization.
Proceedings of the INTERSPEECH 2005, 2005

2004
Book Review: Grammatical Evolution: Evolutionary Automatic Programming in an Arbitrary Language.
Genetic Programming and Evolvable Machines, 2004

Nonlinear distortion cancellation in OFDM systems using an adaptive LINC structure.
Proceedings of the IEEE 15th International Symposium on Personal, 2004

AV@CAR: A Spanish Multichannel Multimodal Corpus for In-Vehicle Automatic Audio-Visual Speech Recognition.
Proceedings of the Fourth International Conference on Language Resources and Evaluation, 2004

Multi-environment models based linear normalization for speech recognition in car conditions.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

2003
Grammatical evolution to design fractal curves with a given dimension.
IBM Journal of Research and Development, 2003

Residual echo power estimation for speech reinforcement systems in vehicles.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Using Grammatical Evolution to Design Curves with a Given Fractal Dimension.
Proceedings of the ICEIS 2003, 2003

Cellular Automata and Probabilistic L Systems: An Example in Ecology.
Proceedings of the Grammars and Automata for String Processing: From Mathematics and Computer Science to Biology, 2003

2002
Parametric 2-dimensional L systems and recursive fractal images: Mandelbrot set, Julia sets and biomorphs.
Computers & Graphics, 2002

Cabin car communication system to improve communications inside a car.
Proceedings of the IEEE International Conference on Acoustics, 2002

DSP to improve oral communications inside vehicles.
Proceedings of the 11th European Signal Processing Conference, 2002

Automatic composition of music by means of grammatical evolution.
APL, 2002

Complex systems in APL: fractals, evolving cellular automata and artificial life.
APL, 2002

2001
Spotlight on m&s activities: Web-based Simulation Activities of the Technical School of Computer Science in the Universidad Autónoma of Madrid.
Simulation, 2001

Determination of fractal dimensions from equivalent L systems.
IBM Journal of Research and Development, 2001

Acoustic echo control and noise reduction for cabin car communication.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

2000
MCM placement using a realistic thermal model.
Proceedings of the 10th ACM Great Lakes Symposium on VLSI 2000, 2000

Using APL2 to compute the dimension of a fractal represented as a grammar.
Proceedings of the APL-Berlin-2000 Conference: Think Arrays in a Great City, 2000

1999
Object-Oriented Thermal Placement using an Accurate Heat Model.
Proceedings of the 32nd Annual Hawaii International Conference on System Sciences (HICSS-32), 1999

1997
A study of the representation of fractal curves by L systems and their equivalences.
IBM Journal of Research and Development, 1997

1996
Representation of Fractal Curves by Means of L Systems.
APL, 1996


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