G. A. Mapp
Page 593
Mel Skinner
Page 593
A. Kenneth Fitzgerald
Page 593
Richard K. Bennett
Page 594
Jeffrey P. Krischer
Page 594
The “peekaboo” idea from punched card information retrieval methods has been mated with the idea of superimposed punching to produce a programming technique which cuts computer run time in half on a test search of 33,000 subject …
Fred C. Hutton
Pages 595-598
Experiments designed to evaluate the capabilities of mechanized information retrieval systems, with emphasis on interactive (man-machine) language and on some of the mechanical and psychological limitations in their design, were …
Morris Rubinoff, Samuel Bergman, Winifred Franks, Elayne R. Rubinoff
Pages 598-604
The ability of a computer system to communicate with the outside world efficiently is as important as its ability to perform computations efficiently. It is quite difficult to characterize a particular user, but rather easy to …
Peter J. Denning
Pages 605-612
A system developed at Harvard for graphically inputting and outputting nonstandard characters on a computer is printed. In principle, the system can deal with any orthography, although at present it is limited to 4000 Chinese …
Hideyuki Hayashi, Sheila Duncan, Susumu Kuno
Pages 613-618
An algorithm for identifying the ergodic subchains and transient states of a stochastic matrix is presented. Applications in Markov renewal programming and in the construction of variable length codes are reviewed, and an updating …
B. L. Fox, D. M. Landi
Pages 619-621
An algorithm is presented which efficiently evaluates the probability for the union of
n independent and not mutually exclusive events. The problem is that of evaluating the sums of the products of all possible combinations of …
G. D. Miller
Pages 630-631
T. A. Bray, C. Witzgall
Pages 631-633
W. Pankiewicz
Page 633
J. H. Henderson, R. M. Knapp, M. E. Volberding
Page 633
T. A. Bray
Page 633
A truly general purpose programming language, GPL, is described which contains facilities for constructing (within the language) new data types as well as facilities for operations performed upon them. The basic language is minimal …
Jan V. Garwick
Pages 634-638
The numerical solution of a system of linear equations resulting from a discrete approximation to a thin plate heat transfer problem is considered. The slow convergence of point iterative methods is analyzed and shown to be caused …
G. W. Stewart, Dale W. Lick
Pages 639-640
Hutchinson states that the “new” (prime modulo) multiplicative congruential pseudorandom generator, attributed to D.H. Lehmer, has passed the usual statistical tests for random number generators. It is here empirically shownautocorrelation …
John RB Whittlesey
Pages 641-644
A description is presented of PLEXUS, a system which enables a user to construct and specify a neural network, to analyze the output data produced by the network, and to store and retrieve networks and data from a library. The …
J. C. Dill, D. L. Randall, I. Richer
Pages 622-629
