Welcome to the
PRHLT RESEARCH CENTER
The Pattern Recognition and Human Language Technology (PRHLT) research center is composed by researchers from the Universitat Politècnica de València (UPV) in the areas of Multimodal Interaction, Pattern Recognition, Image Processing (Image Analysis, Computer Vision, Handwritten Text Recognition, Document Analysis) and Language Processing (Speech Recognition and Understanding, Machine Translation, Information Retrieval).
The PRHLT center is an active research entity with important ongoing research projects, technology transfer activities, and research publications.
ÁREAS DE INVESTIGACIÓN
Big data and deep learning
“Machine Learning is the new electricity” Deep Learning is a technique that belongs to the Machine Learning Field. Machine Learning techniques learns from data. Nowadays the amount of data grows exponentially year after year. Therefore machine learning techniques obtain a great potential to solve very complex problems. Big-data is the perfect partner and deep learning techniques are becoming a standard thanks to the hardware and software advances. In PRHLT we have [...]
ÁREAS DE INVESTIGACIÓN
Speech processing and dialogue systems
El procesado de habla incluye diferentes aplicaciones, tales como reconocimiento y comprensión del habla, traducción del habla, interacción mediante habla con dispositivos móviles, adaptación a locutor y dominio y reconocimiento multimodal de habla. Las tareas relacionadas con sistemas de diálogo incluyen sistemas de diálogo basados en habla y multimodalidad, modelos estadísticos de diálogo y anotación automática de diálogo.
ÁREAS DE INVESTIGACIÓN
Handwritten Text Recognition
Both off-line (document images) and on-line HTR (tablet or e-pen signals) are considered. No prior character or word segmentation is needed. Technology relies on character-level optical models based on Convolutional-Recurrent Neural Networks and Hidden Markov Models, along with Finite-State Lexical and N-Gram Language Models. After model training, for each given text line image, a holistic (“Viterbi”) search provides both an optimal transcription and the corresponding word and character segmentations. Applications: [...]
ÁREAS DE INVESTIGACIÓN
Computer vision
General Statistical and Syntactic Pattern Recognition techniques for image analysis and recognition. Some applications: OCR and document analysis, medical diagnosis, biometric identification, image and video retrieval. Relevance-based Image Retrieval Biometrics
ÁREAS DE INVESTIGACIÓN
Language translation
Las actividades del grupo de Traducción Automática comenzaron hace algunos años con el uso de modelos de estados finitos para la traducción de voz a voz y la traducción de texto a texto en dominios limitados. Este grupo ha desarrollado una serie de modelos de traducción con sus correspondientes algoritmos de aprendizaje y una serie de prototipos para la traducción de voz y la traducción asistida por ordenador. Actualmente, el grupo [...]
ÁREAS DE INVESTIGACIÓN
Natural Language Processing
Social media data analysis: Author profiling, Stance detection, Deceptive opinion detection, Irony detection and sentiment analysis, Mixed-script text analysis, Plagiarism and social copying detection. Author profiling Given a text, what are the author’s traits? The focus is on inferring traits such as gender, age, native language, language variety, and personality on the basis of the stylistic analysis of the author’s texts. This is of interest for areas such [...]
