Conferencia

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Abstract:

This work presents a system for pattern recognition that combines a self-organising unsupervised technique (via a Kohonen-type SOM) with a bayesian strategy in order to classify input patterns from a given probability distribution and, at the same time, detect ambiguous cases and explain answers. We apply the system to the recognition of handwritten digits. This proposal is intended as an improvement of a model previously introduced by our group, consisting basically of a hybrid unsupervised, self-organising model, followed by a supervised stage. Experiments were carried out on the handwritten digit database of Concordia University, which is generally accepted as one of the standards in most of the literature in the field.

Registro:

Documento: Conferencia
Título:Detection of ambiguous patterns in a SOM based recognition system: Application to handwritten numeral classification
Autor:Seijas, L.M.; Segura, E.C.; Universitat Bielefeld; SFB 673
Ciudad:Bielefeld
Filiación:Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Bayesian statistics; Pattern recognition; Self-organising maps; Ambiguous patterns; Bayesian statistics; Concordia University; Handwritten digit; Handwritten numeral; Recognition systems; Self-organising; Unsupervised techniques; Conformal mapping; Pattern recognition; Probability distributions; Self organizing maps; Pattern recognition systems
Año:2007
Título revista:6th Int. Workshop on Self-Organizing Maps, WSOM 2007
Título revista abreviado:WSOM - Int. Workshop Self-Organ. Maps
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS12828_v_n_p_Seijas

Referencias:

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  • Krzyzak, A., Dai, W., Suen, C.Y., Unconstrained handwritten character classification using modified backpropagation model (1990) Proceedings of 1st. International Workshop on Frontiers in Handwritten Recognition, pp. 155-166. , Montreal, Canada
  • Chen, G.Y., Bui, T.D., Krzyzak, A., Contour-based handwritten numeral recognition using multi-wavelets and neural networks (2003) Pattern Recognition, 36 (7), pp. 1597-1604
  • Romero, D., Seijas, L., Ruedin, A., Directional continuous wavelet transform applied to handwritten numerals recognition using neural networks (2007) JCST, 7 (1), pp. 66-71
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  • Seijas, L.M., Segura, E.C., A hybrid neural network model for pattern recognition: Solving ambiguities and explaining answers (2005) Proceedings ASIS 2005-34 JAIIO, , Rosario, Argentina
  • Seijas, L.M., Segura, E.C., Un clasificador neuronal que explica sus respuestas: aplicación al re-conocimiento de dígitos manuscritos (2003) Proceedings IX Congreso Argentino de Ciencias de la Computación (CACIC 2003), , La Plata, Argentina
  • Liu, C., Nakashima, K., Sako, H., Fujisawa, H., Handwritten digit recognition using state-of-the-art techniques (2002) Proceedings of the Eighth International Workshop on Frontiers in Handwriting Recognition, pp. 320-325. , Niagara-on-the lake, Canada. August 6-8
  • Dong, J.X., Krzyzak, A., Suen, C.Y., Fast SVM training algorithm with decomposition on very large datasets (2005) IEEE Transactions on Pattern Analysis and Machine Intelligence, 27 (4), pp. 603-618. , April
  • Dong, J.X., Krzyzak, A., Suen, C.Y., Local learning framework for handwritten character recognition (2002) Engineering Applications of Artificial Intelligence, 15 (2), pp. 151-159. , April
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Citas:

---------- APA ----------
Seijas, L.M., Segura, E.C. & Universitat Bielefeld; SFB 673 (2007) . Detection of ambiguous patterns in a SOM based recognition system: Application to handwritten numeral classification. 6th Int. Workshop on Self-Organizing Maps, WSOM 2007.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS12828_v_n_p_Seijas [ ]
---------- CHICAGO ----------
Seijas, L.M., Segura, E.C., Universitat Bielefeld; SFB 673 "Detection of ambiguous patterns in a SOM based recognition system: Application to handwritten numeral classification" . 6th Int. Workshop on Self-Organizing Maps, WSOM 2007 (2007).
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS12828_v_n_p_Seijas [ ]
---------- MLA ----------
Seijas, L.M., Segura, E.C., Universitat Bielefeld; SFB 673 "Detection of ambiguous patterns in a SOM based recognition system: Application to handwritten numeral classification" . 6th Int. Workshop on Self-Organizing Maps, WSOM 2007, 2007.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS12828_v_n_p_Seijas [ ]
---------- VANCOUVER ----------
Seijas, L.M., Segura, E.C., Universitat Bielefeld; SFB 673 Detection of ambiguous patterns in a SOM based recognition system: Application to handwritten numeral classification. WSOM - Int. Workshop Self-Organ. Maps. 2007.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS12828_v_n_p_Seijas [ ]