This dissertation studies information extraction (IE), the problem of extracting structured information from unstructured data. Example IE tasks include extracting person names from news articles, product information from e-commerce Web pages, street addresses from emails, and names of emerging music bands from blogs. IE is all increasingly…

This study developed a variation of the DELPHI approach, a polling technique for systematically soliciting opinions from experts, to produce a technological forecast of developments in the information-processing industry. SEER (System for Event Evaluation and Review) combines the more desirable elements of existing techniques: (1) intuitive…

The progress made on 65 contracts and grants active during 1968 in the four areas designated by the COSATI subject headings: (1) documentation and information technology, (2) language and linguistics, (3) bionics and (4) information theory are presented. Selected highlights of the program are given in the introductory chapter. This is followed by…

Paper presented at the Council of Academic Societies Conference, Washington, D. C., October 2-5, 1968.

Presents a new image compression algorithm that employs some of the most successful approaches to adaptive lossless compression to perform adaptive online (single pass) vector quantization with variable size codebook entries. Results of tests of the algorithm's effectiveness on standard test images are given. (12 references) (KRN)

Evaluates the performance of different methods of data compression coding in several situations. Huffman's code, arithmetic coding, fixed codes, fast approximations to arithmetic coding, and splay coding are discussed in terms of their speed, memory requirements, and proximity to optimal performance. Recommendations for the best methods of…

Presents an inference algorithm that produces a weighted finite automata (WFA), in particular, the grayness functions of graytone images. Image-data compression results based on the new inference algorithm produces a WFA with a relatively small number of edges. Image-data compression results alone and in combination with wavelets are discussed.…

Describes a semantic content recognition process based on relatively small sets of context relators, logical relators, phase and state relators, and aspect relators, which are connecting tools in describing meanings in process of concept formation and human communication. Semantic analysis of textual data by computer is tested for feasibility.…

The problem of managing computer facilities at educational institutions is examined. User categories are defined, and the interrelations between user requirements and the goals/objectives of the facility are discussed. Enumerations of the factors that influence computer facility operations is also accomplished. In addition, management information…

This report delineates the theory and terminology of data compression. It surveys four data compression methods--null suppression, pattern substitution, statistical encoding, and telemetry compression--and relates them to a standard statistical coding problem, i.e., the noiseless coding problem. The well defined solution to that problem can serve…

The twenty-second in a series, this report describes research in information organization and retrieval conducted by the Department of Computer Science at Cornell University. The report covers work carried out during the period summer 1972 through summer 1974 and is divided into four parts: indexing theory, automatic content analysis, feedback…

At the 1972 NATO Advanced Study Institute in Information Science the plenary sessions covered four main areas: the nature of information, information technology and its implications, the impact of information technology on social institutions, and professional issues. In addition, working groups were formed which addressed themselves to specific…

An issue of "Soviet Cybernetics: Recent News Items" consists of English translations of the leading recent Soviet contributions to the study of cybernetics. Articles deal with cybernetics in the 21st Century; the Soviet State Committee on Science and Technology; economic reforms in Rudnev's ministry; an interview with Rudnev; Dnepr-2; Dnepr-2…