The goal of this study is to improve corpus-based Japanese morphological analysis which is composed by word segmentation and part-of-speech (below POS) tagging. We divide the problem of Japanese morphological analysis into three subproblems: models for known word, models for unknown word and corpus maintenance schema. Firstly, we discuss Markov model-based approaches for known word processing. ...

In this paper, a new morphology-based homomorphic filtering technique is presented to enhance features in medical images. The homomorphic filtering is performed based on the morphological sub-bands, in which an image is morphologically decomposed. An evolutionary design is carried to find an optimal gain and structuring element of each sub-band. As a search algorithm, Differential Evolution sch...

Species traits may provide a short-cut to predicting generalities in species turnover in response to environmental change, particularly for poorly known taxa. We ask if morphological traits of assemblages respond predictably to macrohabitats across a large scale. Ant assemblages were collected at nine paired pasture and remnant sites from within three areas along a 300 km distance. We measured ...

This paper is concerned with amoeba median filtering, a structure-adaptive morphological image filter. It has been introduced by Lerallut et al. in a discrete formulation. Experimental evidence shows that iterated amoeba median filtering leads to segmentation-like results that are similar to those obtained by self-snakes, an image filter based on a partial differential equation. We investigate ...

Three nontrivial problems of Thai morphological processing are word boundary ambiguity, tagging ambiguity and implicit spelling errors. These problems cause a lot of difficulty to the parser due to the alternative or erroneous chain of word. This work attempts to provide a computational solution, called Word Filtering, to those linguistic phenomena. The filtering process calculates the probabil...

Recent work is summarised that characterises deterministically and statistically the performance of morphological and rank order filters. We propose adaptivtly filtering noise that is asymmetric by one of the biased morphological filters co and oc whose average is known to be an unbiased estimator of a signal in symmetric noise. Significant differences in filtered images are determined using a ...

A new hardware structure for implementation of soft morphological filters is presented in this paper. This is based on the modification of the majority gate technique. A pipelined systolic array architecture suitable to perform real-time soft morphological filtering is presented as an illustrative example. The processing times of the proposed hardware structure do not depend on the data window ...