Recently organizations have begun to realize the potential value in the huge amounts of raw, constantly fluctuating data sets that they generate and, with the help of advances in storage and processing technologies, collect. This leads to the phenomenon of big data. This data may be stored in structured format in relational database systems, but…

1.2 billion users in Facebook, 17 million articles in Wikipedia, and 190 million tweets per day have demanded significant increase of information processing through Internet in recent years. Similarly life sciences and bioinformatics also have faced issues of processing Big data due to the explosion of publicly available genomic information…

An interactive search and editing system, 3RIP, is being developed at the library of the Royal Institute of Technology in Stockholm for large files of textual and numeric data. A substantial part (on the order of 10-E9 characters) of the primary file of the search system will consist of bibliographic references from a wide range of sources. If the…

Social science data, existing in a format that can be manipulated by computing machinery, can be used for many purposes in addition to those for which they were initially collected. Scholars and government planners should hve ready and equal access to such material and these groups will be best served if they are informed regarding the…

Response time in large, inverted file document retrieval systems is determined by time required to access files of document identifiers on disk and process a Boolean search request. A specialized computer system has been devised that can perform a complicated sample search involving 70 terms and over 60,000 document references 12 to 60 times…

A bulk data input processor which is available for the Rapidly Extensible Language (REL) English versions is described. In REL English versions, statements that declare names of data items and their interrelationships normally are lines from a terminal or cards in a batch input stream. These statements provide a convenient means of declaring some…

Presents a word-based technique for storing natural language text in compact form. The compressed text consists of a dictionary and a text that is a combination of actual running text and pointers to the dictionary. This technique has shown itself to be effective for both text storage and retrieval. (VT)

An English summary is provided for this French article which describes the first stage of a research project using the Bose, Ghosh and Abraham theory with attributes of multiple values applied to a file containing a large number (10 6) of records. (7 references) (Author/SJ)

Reviews hardware (microfilm, videodiscs, computers) which can process and retrieve large amounts of educational information. Identifies ways in which computer-based techniques can be used for course management, direct learning, and research. (Author/DC)

Conversion of the Chemical Abstract Service scientific literature data base from Standard Distribution Format to a center-oriented file format, STF, is described. A tape file format is described in which variable length logical records, possibly longer than the blocksize, may be stored safely. (7 references) (Author/NH)

The computer system described was developed as a departmental aid in locating documents for use as teaching material or for research purposes in the area of information science. The data base of about 2,000 records includes a departmental library of manuals, reports, technical literature, and reprints, as well as journal references and book…

A new technique, known as discrimination value analysis, ranks the text words in accordance with how well they are able to discriminate the documents of a collection from each other. (Author/PF)

WISE is an on-line interactive information retrieval system designed particularly for bibliographic data bases, but it is potentially useful for any keyword-oriented data base. The WISE user searches a data base by entering and combining keywords that are appropriate to the data base and the subject area of interest. The user can also enter…

Describes an online library catalog in which bibliographic references have been compiled by simply transcribing the descriptive data found on the title page and elsewhere on the documents, and discusses the wider implications of the use of natural language descriptions without modifications. Eleven references are listed. (FM)

Examines various types of link list structures built on top of the traditional random access files for application to a database query technique involving multiple keys, and shows how the technique can improve performance of traditional random access files for the Grants Information System. (Author/CMV)