On the expected gain from adjusting matched term retrieval systems
A file adjustment procedure based on maximizing the Bayes expected gain is proposed for matched term retrieval systems. The expected gain and its probability distribution…
HCI
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Contextual understanding by computers
A further development of a computer program (ELIZA) capable of conversing in natural language is discussed. The importance of context to both human and machine…
UPLIFTS—University of Pittsburgh linear file tandem system
A series of computer programs has been developed and is now operational for processing the National Aeronautics and Space Administration linear file system on an IBM…
This paper is intended as an outline of the various conventions which are being considered for the use of flowchart symbols in the preparation of all types of flowcharts…
Secondary key retrieval using an IBM 7090-1301 system
The secondary key retrieval method involves the preparation of secondary storage lists from primary data records. Search requests are satisfied by logical operations on…
An executive system implemented as a finite-state automaton
The 473L command and control system used by the Air Force permits many operators to access large data files through the use of a computer. The man-machine interface is…
Theoretical considerations in information retrieval systems
A method for automatic loading of library subroutines, which can be adapted to operate in conjunction with any conventional two-pass assembler is described. The method is…
An automated data system analysis technique is described. The technique is designed to alleviate some of the principal problems that beset current analysis—large…
Experimental personalized array translator system
A system designed for intimate man-machine interaction in a general-purpose problem-solving environment is experimentally operational. The system utilizes an…
An experiment in a user-oriented computer system
A version of a software-hardware system for the purpose of facilitating the programming and analysis of well-formulated problems is described. A modified Flexowriter is…
A technique for computer detection and correction of spelling errors
The method described assumes that a word which cannot be found in a dictionary has at most one error, which might be a wrong, missing or extra letter or a single…
Computer-made perspective movies as a scientific and communication tool
It is easy to program the basic transformation required for a perspective drawing. This fact plus the advent of high speed microfilm printers such as the General Dynamics…
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