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2 results on '"Sohel, Ferdous Ahmed"'

1. Text Classification using the Concept of Association Rule of Data Mining

Author

Rahman, Chowdhury Mofizur, Sohel, Ferdous Ahmed, Naushad, Parvez, and Kamruzzaman, S. M.

Subjects
Computer Science - Learning, Computer Science - Databases, Computer Science - Information Retrieval
Abstract

As the amount of online text increases, the demand for text classification to aid the analysis and management of text is increasing. Text is cheap, but information, in the form of knowing what classes a text belongs to, is expensive. Automatic classification of text can provide this information at low cost, but the classifiers themselves must be built with expensive human effort, or trained from texts which have themselves been manually classified. In this paper we will discuss a procedure of classifying text using the concept of association rule of data mining. Association rule mining technique has been used to derive feature set from pre-classified text documents. Naive Bayes classifier is then used on derived features for final classification., Comment: 8 Pages, International Conference

Published
2010

2. New dynamic enhancements to the vertex-based rate-distortion optimal shape coding framework

Author

Sohel, Ferdous Ahmed, Dooley, Laurence S., and Karmakar, Gour C.

Subjects
Image coding -- Methods, Algorithms -- Usage, Tolerance (Engineering) -- Measurement, Algorithm, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Existing vertex-based operational rate-distortion (ORD) optimal shape coding algorithms use a vertex band around the shape boundary as the source of candidate control points (CP) usually in combination with a tolerance band (TB) and sliding window (SW) arrangement, as their distortion measuring technique. These algorithms however, employ a fixed vertex-band width irrespective of the shape and admissible distortion (AD), so the full bit-rate reduction potential is not fulfilled. Moreover, despite the causal impact of the SW-length upon both the bit-rate and computational-speed, there is no formal mechanism for determining the most suitable SW-length. This paper introduces the concept of a variable width admissible CP band and new adaptive SW-length selection strategy to address these issues. The presented quantitative and qualitative results analysis endorses the superior performance achieved by integrating these enhancements into the existing vertex-based ORD optimal algorithms. Index Terms--Vertex-based shape coding, video coding.

Published
2007

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