In this paper, we present an off-line OCR methodology for isolated handwritten Greek characters mainly based on a robust hybrid feature extraction scheme. First, image pre-processing is performed in order to normalize the character images as well as to correct character slant. At the next step, two types of features are combined in a hybrid fashion. The first one divides the character image int...

The c l a s s i f i c a t i o n o f a s e t o f p a t t e r n s i s a p rob lem t h a t appears i n v e r y many f i e l d s . I n g e n e r a l , the number o f p o s s i b l e c l asses i s unknown. To d e f i n e a d i s t a n c e ( o r s i m i l a r i t y ) m a t r i x on the s e t o f p a t t e r n s , we must summarize the a v a i l a b l e da te i n the fo rm o f a f i n i t e s e t o f ...

We propose a new energy-based ([1]) online learning approach to the problem of extracting small features from high dimensional, noisy datasets. We demonstrate the power of this new technique by applying it to the Detection of cellular nuclei in large hyperspectral images. Thus, we prove that only a minimum number of random, wideband measurements is necessary to achieve efficient feature extract...

There has been increasing environmental concerns on the metallic pollution in recent decades. The conventional technologies used for metal extraction are ion-exchange resins, polymer ultrafiltration and microemulsion. The whole extraction mechanism can be divided into 4 steps: 1) The binding of dissolved metal to active sites, 2) Separation of the metal load extractant from the lean phase, 3) R...

This paper examines English unbounded dependency constructions and concludes that the syntactic mechanism responsible for extraction operates in the same way in all constructions, regardless of the structures being subordinate or coordinate. In other words, this work argues that there is a general and fully uniform mechanism behind the linkage of ‘gaps’ and their ‘fillers’ in the family of cons...