This paper presents a scheme for video denoising by diffusion of gray levels, based on the Computational Algebraic Topology (CAT) image model. The diffusion approach is similar to the one used to denoise static images. Rather than using the heat transfer partial differential equation, discretizing it and solving it by a purely mathematical process, the CAT approach considers the global expressi...

In this paper we describe the Catalan Lexical Sample task. This task was initially devised for evaluating the role of unlabeled examples in supervised and semi-supervised learning systems for WSD and it is the counterpart of the Spanish Lexical Sample task. It was coordinated also with other lexical sample tasks (Basque, English, Italian, Rumanian, and Spanish) in order to share part of the tar...

An existence theorem for a fixed point of an α-nonexpansive mapping of a nonempty bounded, closed and convex subset of a uniformly convex Banach space has been recently established by Aoyama and Kohsaka with a non-constructive argument. In this paper, we show that appropriate Ishikawa iterate algorithms ensure weak and strong convergence to a fixed point of such a mapping. Our theorems are also...

We give conditions when cat(f × g) < cat(f) + cat(g). We apply our result to show that under suitable conditions for rational maps f , mcat(f) < cat(f) is equivalent to cat(f) = cat(f×idSn). Many examples with mcat(f) < cat(f) satisfying our conditions are constructed. We also resolve one open case of Ganea’s conjecture by constructing a space X such that cat(X × S1) = cat(X) = 2. In fact for e...

An existence theorem for a fixed point of an α-nonexpansive mapping of a nonempty bounded, closed and convex subset of a uniformly convex Banach space is recently established by Aoyama and Kohsaka with a non-constructive argument. In this paper, we show that appropriate Ishihawa iterate algorithms ensure weak and strong convergence to a fixed point of such a mapping. Our theorems are also exten...

A Photo Browser Applying Photomosaic Kiho SAKAMOTO and Takayuki ITOH †Department of Information Sciences, Faculty of Science, Ochanomizu University 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-0012 Japan E-mail: † {keyhole, itot}@itolab.is.ocha.ac.jp Abstract This paper introduces a photo browser applying photomosaic. Photomosaic is a technique to produce large images by arranging many small images like...

the aim of the present study was to determine the presence of helicobacter species in different parts of gastrointestinal tract, hepatobiliary system and pancreas of stray cats. six different sites at the level of genus, gastric (h. heilmannii and h. felis) and enterohepatic species of helicobacter were investigated in six cats using species-specific primers by polymerase chain reaction (pcr). ...

background: cats and other felines act as definitive hosts for many intestinal parasites, some of which are responsible for several zoonotic diseases.  the aim of this study was to determine the type and prevalence of protozoa and gastrointestinal helminthes among stray cats. methods: a cross sectional study was conducted. digestive tracts of 100 stray cats in zanjan province, north-west of ira...