Presents three text compression methods of increasing power and evaluates each based on the trade-off between compression gain and processing time. The advantages of using hash coding for speed and optimal arithmetic coding to successor information for compression gain are discussed. (26 references) (Author/CLB)

The Teacher Follow-up Survey (TFS) is sponsored by the National Center for Education Statistics (NCES) on behalf of the U.S. Department of Education and is conducted by the U.S. Census Bureau. TFS is a follow-up survey of selected elementary and secondary school teachers who participated in the Schools and Staffing Survey (SASS). SASS is the…

The High School Longitudinal Study of 2009 (HSLS:09) is the fifth in a series of National Center for Education Statistics (NCES) secondary longitudinal studies. The core research questions for HSLS:09 explore secondary to postsecondary transition plans and the evolution of those plans; the paths into and out of science, technology, engineering,…

The Commonwealth of Virginia, as with other states, operates a panoply of programs whose objectives, either directly or indirectly, are to develop the state's workforce. Some programs enhance the skills of Virginians through training or formal education; whereas other programs, such as the Employment Service, attempt to facilitate the employment…

This article briefly describes the topics "beta coefficient"--a measurement of the price volatility of a company's stock in relationship to the overall stock market--and "market share"--an average measurement for the overall stock market based on a specified group of stocks. It then selectively recommends a database (file) on…

This paper reports the results of two studies of the readability of FORTRAN programs, i.e., the ease with which a programmer can read and analyze programs already written, particularly in the processes of maintenance and debugging. In the first study, low-level characteristics of 202 FORTRAN programs stored on the general-use UNIX systems at Bell…

This paper presents the major characteristics of the Chinese Character Code for Information Interchange (CCCII) and indicates its intended application for the interchange of Chinese information among computer systems and communication facilities, especially in library networks. It is considered sufficient for present day library applications,…

This article presents the results of a survey to investigate the current issues of computer use in public parks and recreation agencies and to document the experiences of agencies pioneering the use of electronic data processing. (PD)

A model which relates the access control and indexing functions. The model is based on concept protection which allows a practically unbounded number of levels (subsets) of protection without requiring a fixed hierarchy among the levels. This protection is offered independently for each of the user operations allowed. (Author)

Points out a viable and tested alternative to the use of lengthy account numbers. This alternative uses simple numbers and appends the lengthy numbers with their various sort keys and distribution codes to the tables of account names. (Author/DN)

This discussion paper seeks to highlight the need for standardization in the development of computer and telecommunications systems in Australian libraries to ensure an inbuilt capacity to interconnect with other systems. It presents a proposal for the establishment of an on-going mechanism responsible for identifying and developing standards…

A number of basic concepts relating to debugging are identified and a gross theory of debugging is described. (Author)