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Journals and Conferences
For four years, ISRI has conducted an annual test of optical character recognition (OCR) systems known as “page readers.” These systems accept as input a bitmapped image of any document page, and attempt to identify the machine-printed characters on the page. In the annual test, we measure the accuracy of this process by comparing the text that is produced… (More)
We announce the availability of the UNLV/ISRI Analytic Tools for OCR Evaluation together with a large and diverse collection of scanned document images with the associated ground-truth text. This combination of tools and test data will allow anyone to conduct a meaningful test comparing the performance of competing page-reading algorithms. The value of this… (More)
We offer a perspective on the performance of current OCR systems by illustrating and explaining actual OCR errors made by three commercial devices. After discussing briefly the character recognition abilities of humans and computers, we present illustrated examples of recognition errors. The top level of our taxonomy of the causes of errors consists of… (More)
Finding a sequence of edit operations that transforms one string of symbols into another with the minimum cost is a well-known problem. The minimum cost, or edit distance, is a widely used measure of the similarity of two strings. An important parameter of this problem is the cost function, which specifies the cost of each insertion, deletion, and… (More)
SIMSCRIPT III is a programming language for discrete-event simulation. It is a major extension of its predecessor, SIMSCRIPT II.5, providing full support for object-oriented programming and modular software development.
FindSounds.com is the first Web search engine for sound effects. In addition to keyword-based retrieval of audio files, FindSounds.com provides a “sounds-like search” for content-based retrieval. FindSounds Palette is a unique software program enabling local and remote audio files to be searched by content and at multiple speeds.
Like painters selecting hues from color palettes, sound artists and composers choose from palettes of available sounds. Their choices become part of plays, films, radio and television programs, songs, animations, and games. FindSounds Palette is an audio retrieval system designed to facilitate this creative process. Local audio files, and audio files on the… (More)