Research supported by grants from the National Science Foundation and the Joint Services Electronics Program. (DD)

Presents an implicit enumeration algorithm for redrawing school attendance boundaries in order to meet integration requirements. The basis of the approach is the division of the city into smaller areas or zones corresponding to neighborhoods. (Author)

A straightforward procedure for performing weighted-term searches can be programmed quickly and easily, and the same general algorithm can be used for either on-line or batch mode searching. The method can be used to do whole text searches as well as conventional searches for index terms or other descriptors. (5 references) (Author/NH)

Using negative digits in writing numerals and in calculation is explained. This is the second article in the series; for the first, see Vol. 1, No. 7, Nov., 1972, pp. 8-9. (DT)

The present paper discusses two rather different types of partitioning techniques that still have the same property of monotone invariance. (Author)

The intent of this paper is to generalize the min and max clustering procedures in such a way that the assumption of a symmetric similarity measure is unnecessary. (Author)

Paper is an attempt to extend the hierarchical partitioning algorithms and to emphasize a general connection between these clustering procedures and the mathematical theory of lattices. (Author)

A discussion of the various algorithms used for multiplication. Repeated addition, arrays, the distributive law, Egyptian and Russian Peasant Multiplication, Gelosia, Napier's Rods and Genaille's Rods are all described, and examples of multiplying using each method are explained. (DT)

An analysis is made of the extent to which specific division skills are retained from fourth to fifth grade, with results showing a significant loss in ability during the summer. Implications for instruction are included. (DT)

Special issue on translation. (VM)

Reviews current applications and future plans for instructional technology in Hungary, focussing on programed learning--the area which has gotten the greatest attention in that country to date. (LS)