Index Catalog // ScholarsArchive@OSU

A hybrid approach to reasoning under uncertainty

Creator:: D'Ambrosio, Bruce
Abstract:: A complete approach to reasoning under uncertainty requires support for both identification of the appropriate hypothesis space and ranking hypotheses based on available evidence. We present a hybrid reasoning scheme which combines symbolic and numeric methods for uncertainty management to provide efficient and effective support for both of these tasks....
Resource Type:: Technical Report

VNS -- a virtual network simulator

Creator:: Domka, Walter F. and Freiling, Michael J.
Abstract:: A software system to study network algorithms was implemented on UNIX. Each part of a network algorithm can be written as a single C program which becomes a virtual node in the network. During a simulation all virtualized nodes run as separate processes on a single PDP 11/44. Inter-node communication...
Resource Type:: Technical Report

FORLOG : a logic-based architecture for design

Creator:: Dietterich, Thomas G. and Ullman, David G.
Abstract:: It is difficult to build intelligent computer-aided design (ICAD) programs using available expert system shells and AI programming languages. To build ICAD programs, tools are needed that support (a) generative search of design spaces, (b) deep search of design spaces to evaluate alternative designs, (c) simultaneous exploration of alternative designs...
Resource Type:: Technical Report

Artificial intelligence at OSU

Creator:: Dietterich, Thomas G. and D'Ambrosio, Bruce
Abstract:: This report describes of current research in Artificial Intelligence at Oregon State University. The five areas of active research are ( a) intelligent aids for mechanical engineering design, (b) active experimentation as a method in machine learning, ( c) techniques for combining logic programming and assumption-based truth maintenance, ( d)...
Resource Type:: Technical Report

A summary of machine learning papers from IJCAI-85

Creator:: Dietterich, Thomas G., Flann, Nicholas S., and Wilkins, David C.
Abstract:: This report reviews the 31 papers on machine learning that were presented at the Ninth International Joint Conference on Artificial Intelligence (IJCAI-85) held in Los Angeles during August, 1985. The papers are grouped according to a taxonomy of the various subareas of machine learning research. The areas receiving the most...
Resource Type:: Technical Report

A knowledge level analysis of learning programs

Creator:: Dietterich, Thomas G.
Abstract:: This chapter develops a taxonomy of learning methods using techniques based on Newell’s knowledge level. Two properties of each system are defined: knowledge level predictability and knowledge level learning. A system is predictable at the knowledge level if the principle of rationality can be applied to predict its behavior. A...
Resource Type:: Technical Report

An inductive approach to solving the imperfect theory problem

Creator:: Dietterich, Thomas G. and Flann, Nicholas S.
Resource Type:: Technical Report

Learning at the knowledge level

Creator:: Dietterich, Thomas G.
Abstract:: When Newell introduced the concept of the knowledge level as a useful level of description for computer systems, he focused on the representation of knowledge. This paper applies the knowledge level notion to the problem of knowledge acquisition. Two interesting issues arise. First, some existing machine learning programs appear to...
Resource Type:: Technical Report

Spring Cereal Forage Applied Water Use

Creator:: Bohle, Mylen
Abstract:: Drought is a major concern for producers of food and forage crops. According to the U.S. Drought monitor, Central and Eastern Oregon in particular, are in severe drought. In the early 1990's, a trial was conducted to determine the yield per inch of water applied to 5 cereal species: barley,...
Resource Type:: Technical Report

Preventing and Controlling Powderpost Beetles In and Around the Home

Creator:: De Angelis, Jack D.
Abstract:: This PNW Extension publication provides an overview of various types of powderpost beetles, the symptoms associated with their damage, as well as tips for prevention and control.
Resource Type:: Technical Report

How Oregon State University Programming Supports the Development of Agritourism Activities (Including Farm-Direct Sales) in Oregon

Creator:: Stewart, Mary and Comerford, Audrey
Abstract:: Oregon State University (OSU) faculty members have supported the success of agriculture producers and their businesses for more than 100 years. Through research, education and community engagement, OSU faculty have helped agriculture producers and value-added operators respond to threats and opportunities in a manner that has brought vitality and sustainability...
Resource Type:: Technical Report

Economic Linkages and Impact Analysis for the Oregon Sea Grant Programmed and Operated Hatfield Marine Science Center Visitor Center

Creator:: Sorte, Bruce, McBride, Catherine, Rahe, Mallory, and Lev, Larry
Abstract:: The Oregon Sea Grant Visitor Center at Hatfield Marine Science Center attracts 150,000 visitors a year and does not require an admission fee. Surveying visitors, 39% of all people indicated that half or more of their reason for coming to the Oregon coast was to visit the Visitor Center.
Resource Type:: Technical Report

Measuring Community Action Program Impacts on Multi-Dimensional Poverty: Final Report of the Futures Project

Creator:: Torgerson, Melissa
Abstract:: The Community Action Partnership of Oregon (CAPO) approached Oregon State University to assist in developing statewide indicators which help local agencies better utilize data for continuous improvement. The project was expanded to include Washington and Idaho. This report summarizes the project's findings.
Resource Type:: Technical Report

Vital Wallowa Indicator Project: 2009 Baseline Assessment Report

Creator:: Etuk, Lena and Crandall, Mindy
Abstract:: This report details a collaborative effort of the Wallowa Resources, Northeast Oregon Economic Development District and Oregon State University faculty members jointly affiliated with Extension Service and the Rural Studies Program to develop indicators of Wallowa County community vitality in a way that reflects the goals and values of the...
Resource Type:: Technical Report

Wallowa County Indicators of Vitality: 2009 Report Summary

Creator:: Etuk, Lena and Crandall, Mindy
Abstract:: This document summarizes a collaborative effort of the Wallowa Resources, Northeast Oregon Economic Development District and Oregon State University faculty members jointly affiliated with Extension Service and the Rural Studies Program to develop indicators of Wallowa County community vitality in a way that reflects the goals and values of the...
Resource Type:: Technical Report

Vernonia Community Indicators of Vitality: 2013 Baseline Assessment Report

Creator:: Grotta, Amy
Abstract:: This document is a report on the Baseline Vital Vernonia Indicator Project, an effort aimed at exploring community vitality in Vernonia, particularly in light of recent catastrophic floods and subsequent rebuilding and community development initiatives. The Vital Vernonia Indicator Project is a collaboration of Oregon State University Extension Service, Rural...
Resource Type:: Technical Report

Vernonia Community Indicators of Vitality: 2013 Baseline Assessment Summary

Creator:: Grotta, Amy
Abstract:: This document is a report on the Baseline Vital Vernonia Indicator Project, an effort aimed at exploring community vitality in Vernonia, particularly in light of recent catastrophic floods and subsequent rebuilding and community development initiatives. The Vital Vernonia Indicator Project is a collaboration of Oregon State University Extension Service, Rural...
Resource Type:: Technical Report

Tillamook County: 2020 Strategic Vision. Indicator Report & Assessment, 2009–2014. Executive summary

Creator:: Etuk, Lena
Abstract:: A product of the Vital Tillamook Indicator Project. This executive summary provides an overview of a collaborative effort of the Tillamook County Futures Council and Oregon State University faculty members jointly affiliated with Extension Service and the Rural Studies Program developed 50 indicators of Tillamook County: 2020 Strategic Vision in...
Resource Type:: Technical Report

Tillamook County: 2020 Strategic Vision. 2009-2014 Indicator Assessment Report

Creator:: Etuk, Lena
Abstract:: A product of the Vital Tillamook Indicator Project. This report details a collaborative effort of the Tillamook County Futures Council and Oregon State University faculty members jointly affiliated with Extension Service and the Rural Studies Program developed 50 indicators of Tillamook County: 2020 Strategic Vision in order to gain insight...
Resource Type:: Technical Report

Estimating Nitrogen Contribution from Cover Crops on Organic Vegetable and Cane Berry Farms : Final report

Creator:: Andrews, Nick and Stephenson, Garry
Abstract:: The main objective of this project was to compare on-farm measurement techniques for estimating N-contributions from cover crops using 1) separated species lab tests (a standard experimental method), 2) bulked species lab tests, 3) fresh weight, 4) dry weight and 5) canopy height and density. We also recorded relative weed...
Resource Type:: Technical Report

WealthWorks Northwest Evaluation

Creator:: Hause, Amy and Rahe, Mallory
Abstract:: Evaluation of WealthWorks Northwest in Exploration & Construction Regions from 2014–2016.
Resource Type:: Technical Report

Tribal climate adaptation guidebook : version 1.0

Creator:: Dalton, Meghan, Chisholm Hatfield, Samantha, and Petersen, Alexander “Sascha”
Abstract:: This Guidebook follows a holistic approach to adaptation planning called community-driven climate resilience planning. Community-driven climate resilience planning is “the process by which residents of vulnerable and impacted communities define for themselves the complex climate challenges they face, and the climate solutions most relevant to their unique assets and threats.”...
Resource Type:: Technical Report

Historical trends and future projections of climate and streamflow in the Willamette Valley and Rogue River Basins

Creator:: Dalton, Meghan, Rupp, David, Dello, Kathie, and Mote, Philip
Abstract:: A report to the US Army Corps of Engineers Portland District Office.
Resource Type:: Technical Report

Projected climate change impacts on water demand and supply for the City of Corvallis

Creator:: Rupp, David E.
Abstract:: A report to Carollo Engineers, Inc.
Resource Type:: Technical Report

Efficient fault tolerant broadcasting algorithm for the hypercube

Creator:: Al-Dhelaan, Abdullah and Bose, Bella
Abstract:: One of the most popular topologies is the hypercube, that has n = 2ᵏ processors, numbered 0 to 2ᵏ -1 and connected in such a way that there is a link between any two if and only if they differ in one bit. Its popularity is due to the fact...
Resource Type:: Technical Report

The test incorporation hypothesis and the weak methods

Creator:: Bennett, James S. and Dietterich, Thomas G.
Abstract:: Test incorporations are program transformations that improve the performance of generate-and-test procedures by moving information out of the "test" and into the "generator." The test information is said to be "incorporated" into the generator so that items produced by the generator are guaranteed to satisfy the incorporated test. This article...
Resource Type:: Technical Report

Tours of graphs, digraphs and sequential machines

Creator:: Cull, Paul
Abstract:: A tour of a graph (digraph, or sequential machine) is a sequence of nodes from the graph such that each node appears at least once and two nodes are adjacent in the sequence only if they are adjacent in the graph. Finding the shortest tour. of a graph is known...
Resource Type:: Technical Report

A computational model of resource-bounded reasoning and decision-making under uncertainty

Creator:: D'Ambrosio, Bruce
Abstract:: A complete approach to uncertainty management requires support for interactive and incremental problem formulation, inference, hypothesis ranking, and decision making. In addition, computational models must allow for time and resource bounds. Current approaches to uncertainty management concentrate primarily on inference, provide little or no support for the larger issues in...
Resource Type:: Technical Report

Towers of Hanoi and analysis of algorithms

Creator:: Cull, Paul and Ecklund, Earl F., Jr.
Resource Type:: Technical Report

A new strategy for processors allocation in an n-cube multiprocessor

Creator:: Al-Dhelaan, Abdullah and Bose, Bella
Abstract:: In this paper we will describe two known strategies for static processors allocation in an n-cube multiprocessor, namely the buddy system strategy and the gray code strategy and then propose a new strategy that outperforms the first by (n-k+1) and the second by (n-k+1)/2 in cube recognition. Furthermore, our strategy...
Resource Type:: Technical Report

Interactive problem solving in elementary algebra

Creator:: Bregar, William S. and Farley, Arthur M.
Abstract:: A general model of interactive problem solving is described. The model views interactive problem solving to be the product of cooperating subsystems. The operative subsystem selectively attends to and manipulates problem relevant information in search of a solution. The descriptive subsystem is capable of interpreting this behavior and of discussing...
Resource Type:: Technical Report

A survey of graph theoretic computer program complexity measures

Creator:: Cook, Curtis R. and Harrison, Warren
Abstract:: A computer program complexity measure is a measure of how easy the program is to understand, test, modify, maintain, etc. Many of these measures are derived from the control or flow graph of the program. We describe these measures graph theoretically, indicate what aspect or aspects of the program they...
Resource Type:: Technical Report

Numerical considerations on Fibonacci numbers of order r

Creator:: Capocelli, Renato M., Cerbone, Giuseppe, and Cull, Paul
Abstract:: Recently generalized Fibonacci numbers have received increasing attention. Some properties that are well known for traditional Fibonacci numbers do not generalize easily, some others do not generalize at all. In this paper we report some properties that we have generalized. Section 1 introduces the notation and a theorem due to...
Resource Type:: Technical Report

Climate change in the Northwest : implications for our landscapes, waters, and communities

Creator:: Dalton, Meghan M., Mote, Philip W., Snover, Amy K., and Oregon Climate Change Research Institute
Abstract:: Climate Change in the Northwest: Implications for Our Landscapes, Waters, and Communities is a report aimed at assessing the state of knowledge about key climate impacts and consequences to various sectors and communities in the Northwest United States. This report draws on two recent state climate assessments in Washington in...
Resource Type:: Technical Report

Sixth Oregon climate assessment

Creator:: Fleishman, Erica and Oregon Climate Change Research Institute
Abstract:: Consistent with its charge under Oregon House Bill 3543, the Oregon Climate Change Research Institute (OCCRI) conducts a biennial assessment of the state of climate change science, including biological, physical, and social science, as it relates to Oregon and the likely effects of climate change on Oregon. This sixth Oregon...
Resource Type:: Technical Report

Fifth Oregon climate assessment

Creator:: Dalton, Meghan M., Fleishman, Erica, and Oregon Climate Change Research Institute
Abstract:: Consistent with its charge under Oregon House Bill 3543, the Oregon Climate Change Research Institute (OCCRI) conducts a biennial assessment of the state of climate change science, including biological, physical, and social science, as it relates to Oregon and the likely effects of climate change on Oregon. This fifth Oregon...
Resource Type:: Technical Report

The third Oregon climate assessment report : January 2017

Creator:: Dalton, Meghan M., Dello, Kathie D., Hawkins, Linnia, Mote, Philip W., Rupp, David E., and Oregon Climate Change Research Institute
Abstract:: As per Oregon State Legislature House Bill 3543.
Resource Type:: Technical Report

Fourth Oregon climate assessment report. State of climate science : 2019

Creator:: Mote, Philip W., Abatzoglou, John, Dello, Kathie D., Hegewisch, Katherine, Rupp, David E., and Oregon Climate Change Research Institute
Abstract:: This report, required by state law under HB3543, provides a comprehensive assessment of the state of science of climate change as it pertains to Oregon, covering the physical, biological, and social dimensions. The first chapter summarizes the current state of knowledge of physical changes in climate and hydrology, focusing on...
Resource Type:: Technical Report

Oregon climate assessment report : December 2010

Creator:: Dello, Kathie D., Mote, Philip W., and Oregon Climate Change Research Institute
Abstract:: The group of scientists that make up the Intergovernmental Panel on Climate Change found in 2007 that the warming of Earth’s climate is unequivocal and largely due to human activity. Earth’s climate has changed in the past, though the recent magnitude and pace of changes are unprecedented in human existence....
Resource Type:: Technical Report

Future climate projections. Wheeler County : August 2018

Creator:: Dalton, Meghan, Rupp, David, and Hawkins, Linnia
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Wallowa County : April 2022

Creator:: Dalton, Meghan, Fleishman, Erica, and Bachelet, Dominique
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Marion County : June 2022

Creator:: Dalton, Meghan, Fleishman, Erica, and Bachelet, Dominique
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Sherman County : August 2018

Creator:: Dalton, Meghan, Rupp, David, and Hawkins, Linnia
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Tillamook County : August 2022

Creator:: Dalton, Meghan, Fleishman, Erica, and Bachelet, Dominique
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Lincoln County : February 2020

Creator:: Dalton, Meghan
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Malheur County : August 2018

Creator:: Dalton, Meghan, Rupp, David, and Hawkins, Linnia
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Linn County : July 2022

Creator:: Dalton, Meghan, Fleishman, Erica, and Bachelet, Dominique
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Wasco County : August 2018

Creator:: Dalton, Meghan, Rupp, David, and Hawkins, Linnia
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Lane County : July 2022

Creator:: Dalton, Meghan, Fleishman, Erica, and Bachelet, Dominique
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

Future climate projections. Umatilla County : October 2020

Creator:: Dalton, Meghan
Abstract:: A report to the Oregon Department of Land Conservation and Development.
Resource Type:: Technical Report

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