JPEG picture compression and related algorithms are not only used in still picture compression, but also to a growing degree for moving picture compression in telecommunication applications. Real-time JPEG compression and decompression are crucial in these scenarios. We present a method to significantly improve the performance of software based JPEG decompression. Key to these performance gains...

This paper presents a knowledge based approach to consonant recognition. In traditional knowledge based systems, the expert is the linguist/phonetician who attempts to describe and quantify the acoustic events, in the form of production rules into phonetic description. This paper proposes to alter the expert's role so that the expert only needs to provide the basic structure of the phonetic cla...

Our long-term research goal is to create systems capable of answering a wide variety of questions, including questions which were unanticipated at the time the system was constructed, and questions tailored to novel scenarios which the user is interested in. Our approach is to augment on-line text with a knowledgebased question-answering component, capable of reasoning about a scenario which th...

To be considered exceptional, a textbook must satisfy three basic requirements. First, it must be authoritative, written by one with a broad range of experience in, and knowledge of, a subject. Second, it must effectively communicate to the reader, in the same manner in which a course instructor must be capable of imparting knowledge to students in a classroom. Third, it must stimulate the read...

We present the general design of a system to control urban street traffic signals. It is based on cooperating, learning, realtime, distributed expert systems. We also describe the operation of a running prototype program which, while using several simplifying assumptions, has proven the technical feasibility of the approach. It has also attained a 36% improvement in the traffic flow under non-s...

There is an increasing need for technology for merging semi-structured information (such as structured reports) from heterogeneous sources. For this, we advocate a knowledgebased approach when the information to be merged incorporates diverse, and potentially complex, conflicts (inconsistencies). In this paper, we contrast the goals of knowledge-based merging with other technologies such as sem...

We tackle in this paper the problem known as plan recognition. Our aim is to try to restudy the problem, paying particular attention to the underlying reasoning processes. We rename the problem as goal recognition, explain the details of the reasoning steps that are required for it, and argue in particular that forward reasoning is the central process in goal recognition though it needs to be s...

For many years, physical asset indicators were the main evidence of an organization’s successful performance. However, the situation has changed following the revolution of information technology in the knowledge-based economy and in the new ideas in economy; knowledge assets are a critical strategic resource in economy. Knowledge management [KM] tools have become very important and in order to...

The layout of information is a complex task, and is usual-ly entrusted to a professional graphic designer. Research into automatic layout attempts to develop computational models of problem solving techniques used by graphic designers to solve layout problems. Graphic designers develop their problem solving skills through years of learning by following three approaches: i) learning by being tol...