This paper is focused on the study of skeleton transformations involved in the hand printed & handwritten documents’ images preprocessing. A new homotropic transformation structural element is proposed in order to optimize the sequential thinning procedure: reduced number of thinning cycles and less coarse skeleton lines. Key-Words: Hand-written Character Recognition, homomorfic transformation,...

We participated in Web retrieval tasks in order to investigate the integration of multiple retrieval results. We also examined the possibility of using a general retrieval system designed for organized documents, such as news articles that match users’ queries, to retrieve unorganized documents, such as Web documents. Our results show that if information retrieval systems use the OKAPI method, ...

Online communities bring together people with varied access to and understanding of the work at hand, who must collaborate through documents of various kinds. We develop a framework articulating the characteristics of documents supporting collaborators with asymmetric access to knowledge versus those with symmetric knowledge. Drawing on theories about document genre, boundary objects and proven...

Usually retrieval systems search for documents relevant to a certain query or—more general—information need. However, in some situations the user is not interested in documents but other types of entities. In the paper at hand, we will propose a system searching for companies with expertise in a given field sketched by a keyword query. The system covers all aspects: determining and representing...

Digital documents have advanced only slightly from their non-digital ancestors, incorporating a few such innovations as hypertext links andfull text searching. Even the much heralded advent of multimedia, just as embedded images and video clips, are rather straightforward digital analogs of books and frim. We believe that computer technology makes possible far more interesting and complex digit...

Automatic classification of documents is an important area of research with many applications in the fields of document searching, forensics and others. Methods to perform classification of text rely on the existence of a sample of documents whose class labels are known. However, in many situations, obtaining this sample may not be an easy (or even possible) task. Consider for instance, a set o...

as the chief communication channel between eastern and western civilizations, the  silk road has played the significant role in the history of northeastern iran. the  silk road has provided a communicative way for commercial exchanges in one hand, and was in used by invader nomads in order to plunder of northeastern iran during many decades in other hand. the contacts have led to interaction be...

General remarks about these documents: These are lecture notes. Let us reflect separately on the meaning of both words. The first word is meant to indicate some correspondence between what is said in the lectures and what appears in these notes. This correspondence is not precise: on the one hand, in response to a question or a comment, I may say things in class which do not make it into these ...