Topological Sorting is a standard computation performed on finite partial order relations, for which efficient algorithms are well known.
This work is a study of using a depth-first search of a directed graph to implement topological sorting algorithms. A new algorithm is presented, along with a discussion of how it...
This paper describes a real time garbage collection algorithm. It allocates storage automatically from a heap, and does not require the programmer to give any indication that particular items are no longer useful or accessible. A garbage collection algorithm is considered to be real time if the amount of work...
Information derived from a Landsat Multispectral Scanner CMSS) scene can be used to assign individual pixels, each representing about one acre on the Earth's surface, to natural resource classes, A lineprinter can be used to generate a 1:24,000 scale map of the scene in which each symbol corresponds to a...
University Honors Program Senior Project.
Many times the study of the behavior of an algorithm can be inhibited by the inability to actually see exactly what the algorithm does. Static diagrams and verbal descriptions are often not enough to provide real insight into the behavior of an algorithm. It would...
Over the past few years Qualitative Reasoning about physical systems has emerged strongly as an important area in Artificial Intelligence. Many qualitative reasoning formalisms have been developed and applied to varied domains, namely, hydraulic systems, electrical systems, industrial control etc.
This paper examines Qualitative Process Theory [Forbus 84] formalism in...
The Large-Grain Data-Flow (LGDF) Machine is a tightly-coupled multi-processor consisting of several independent nodes, upon each of which may run one or more tasks. These tasks must be able to communicate and synchronize with each other. This document describes a message-passing system developed to meet these requirements.
The message-passing system...
This paper describes a mathematical formulation and a computer program
in basic language for analyzing the load carrying capacity of skyline
systems using the effects of log drag. The actual log and ground geometry
are used in the analysis of the payload capacities for standing, live and
running skylines. The...
The language G is an expression based language designed around the concept of the stream; where a stream is a sequence of values, perhaps infinite in length. There are no statements in G, only expressions. All expressions are evaluated on a demand driven basis, no computation takes place that does...
Object oriented programming languages are noted for their ability to allow users to quickly construct large software systems. They achieve this ability by allowing the programmer to concentrate on what it is they want to do, ignoring details of how that functionality is achieved. Such characteristics should make the object...
This paper presents equations developed to predict the height to live crown base of six species in the central western Willamette Valley of Oregon. Weighted nonlinear regression was used to fit a separate logistic equation for each species. The predictor variables are total tree height, crown competition factor in trees...
Equations are presented for predicting height to crown base (or bole ratio) for fourteen species of trees common to the mixed-conifer zone of southwest Oregon. Nonlinear regression was used to fit a weighted logistic function for each species. The independent variables include height, crown competition factor in larger trees, stand...
