this paper presents a new three-dimensional curvelet transform based dictionary learning for automatic segmentation of intraretinalcysts, most relevant prognostic biomarker in neovascular age-related macular degeneration, from 3d spectral-domain optical coherencetomography (sd-oct) images. in particular, we focus on the spectralis sd-oct (heidelberg engineering, heidelberg, germany) system, and...

We study the efficiency of greedy algorithms with regard to redundant dictionaries in Hilbert spaces. We obtain upper estimates for the errors of the Pure GreedyAlgorithm and the Orthogonal GreedyAlgorithm in terms of the best m-term approximations. We call such estimates the Lebesgue-type inequalities. We prove the Lebesgue-type inequalities for dictionaries with special structure. We assume t...

A method to add part-of-speech statistics, derived from a dictionary, to a rule-based broad-coverage parser is described. By entering the most likely part-of-speech, determined by the number of senses per part-of-speech in a standard dictionary, to the parser, parsing accuracy improves. This method improves the parser's accuracy without requiring a large corpus or manual encoding. Part-of-speec...

the study aimed at investigating whether the retention of vocabulary acquired incidentally is dependent upon the amount of task-induced involvement. immediate and delayed retention of twenty unfamiliar words was examined in three learning tasks( listening comprehension + group discussion, listening comprehension + dictionary checking + summary writing in l1, and listening comprehension + dictio...

In this paper a new algorithm for string edit distance computation is proposed. It is based on the classical approach [11]. However, while in [11] the two strings to be compared may be given online, our algorithm assumes that one of the two strings to be compared is a dictionary entry that is known a priori. This dictionary word is converted, in an o -line phase to be carried out beforehand, in...

THE NPL Russian-English automatic dictionary is organised on a stem-paradigm basis wherein there is for most nouns and adjectives a single entry for all their inflected forms and for most verbs only one or two entries. This is in contrast to the full-form type of dictionary organisation wherein each inflected form of every word has a separate entry. The decision to organise our dictionary on th...

This empirical study explores how L2 learners access information while reading L2 texts in a Web-based learning environment. Twenty-three second-year German students read and summarized two online texts in the netLearn program, while their use of online multimedia support resources was tracked. Multimedia resources included a program-internal glossary, an online bilingual dictionary, and an aud...