December 1980 - Vol. 23 No. 12
Features
Computer programs for detecting and correcting spelling errors
With the increase in word and text processing computer systems, programs which check and correct spelling will become more and more common. Peterson investigates the…
Learning and reasoning by analogy
We use analogy when we say something is a Cinderella story and when we learn about resistors by thinking about water pipes. We also use analogy when we learn subjects…
Deletion in two-dimensional quad trees
An algorithm for deletion in two-dimensional quad trees that handles the problem in a manner analogous to deletion in binary search trees is presented. The algorithm is…
Measured performance of an Ethernet local network
The Ethernet communications network is a broadcast, multiaccess system for local computer networking, using the techniques of carrier sense and collision detection.…