Index Catalog // ScholarsArchive@OSU

Machine learning for activity recognition

Creator:: Oregon State University. Dept. of Computer Science and Shen, Jianqiang
Abstract:: This paper surveys the activity recognition task from a machine learning perspective. I give a definition of this problem, and I classify different activity recognition problems into two categories. I show the activities can be hierarchical, and based on such hierarchies I synthesize a language to describe activities. I give...
Resource Type:: Research Paper

Pruning improves heuristic search for cost-sensitive learning

Creator:: Oregon State University. Dept. of Computer Science, Zubek, Valentina Bayer, and Dietterich, Thomas Glen
Abstract:: This paper addresses cost-sensitive classification in the setting where there are costs for measuring each attribute as well as costs for misclassification errors. We show how to formulate this as a Markov Decision Process in which the transition model is learned from the training data. Specifically we assume a set...
Resource Type:: Research Paper

Integrating learning from examples into the search for diagnostic policies

Creator:: Oregon State University. Dept. of Computer Science, Bayer-Zubek, Valentina, and Dietterich, Thomas Glen
Abstract:: This paper studies the problem of learning diagnostic policies from training examples. A diagnostic policy is a complete description of the decision-making actions of a diagnostician (i.e., tests followed by a diagnostic decision) for all possible combinations of test results. An optimal diagnostic policy is one that minimizes the expected...
Resource Type:: Research Paper

Two heuristics for solving POMDPs having a delayed need to observe

Creator:: Oregon State University. Dept. of Computer Science, Zubek, Valentina Bayer, and Dietterich, Thomas Glen
Abstract:: A common heuristic for solving Partially Observable Markov Decision Problems POMDPs is to first solve the underlying Markov Decision Process MDP and then construct a POMDP policy by performing a fixed depth lookahead search in the POMDP and evaluating the leaf nodes using the MDP value function. A problem with...
Resource Type:: Research Paper

Interactive fault localization for end-user programmers : a think aloud study

Creator:: Oregon State University. Dept. of Computer Science, Prabhakararao, Shreenivasarao, and Cook, Curtis R.
Abstract:: End-user programmers are writing an unprecedented number of programs, due in large part to the significant effort put forth to bring programming power to end users. Unfortunately, this effort has not been supplemented by a comparable effort to increase the correctness of these often faulty programs. To address this need,...
Resource Type:: Research Paper

Learning diagnostic policies from examples by systematic search

Creator:: Oregon State University. Dept. of Computer Science and Zubek, Valentina Bayer
Abstract:: A diagnostic policy species what test to perform next based on the results of previous tests and when to stop and make a diagnosis. Cost-sensitive diagnostic policies perform tradeoffs between (a) the costs of tests and (b) the costs of misdiagnoses. An optimal diagnostic policy minimizes the expected total cost....
Resource Type:: Research Paper

Improving SVM accuracy by training on auxiliary data sources

Creator:: Oregon State University. Dept. of Computer Science, Wu, Pengcheng, and Dietterich, Thomas Glen
Abstract:: The standard model of supervised learning assumes that training and test data are drawn from the same underlying distribution. This paper explores an application in which a second, auxiliary, source of data is available drawn from a different distribution. This auxiliary data is more plentiful, but of significantly lower quality,...
Resource Type:: Research Paper

An integrated testing and fault localization methodology for spreadsheet languages

Creator:: Oregon State University. Dept. of Computer Science, Reichwein, James, and Burnett, Margaret, 1949-
Abstract:: Spreadsheet languages, which include commercial spreadsheets and various research systems, have proven to be flexible tools in many settings. Research shows, however, that spreadsheets often contain faults. This thesis presents an integrated testing and fault localization methodology for spreadsheets. This methodology allows spreadsheet developers to engage in modeless development, testing...
Resource Type:: Research Paper

Interactive, visual fault localization support for end-user programmers

Creator:: Oregon State University. Dept. of Computer Science, Ruthruff, Joseph Ronald, Prabhakararao, Shrinu, Reichwein, James, Cook, Curtis R., Creswick, Eugene Rogan, and Burnett, Margaret, 1949-
Abstract:: End-user programmers are writing an unprecedented number of programs, primarily using languages and environments that incorporate a number of interactive and visual programming techniques. To help these users debug these programs, we have developed an entirely visual, interactive approach to fault localization. This paper presents the approach. We also present...
Resource Type:: Research Paper

Gender : an important factor in end-user programming environments?

Creator:: Oregon State University. Dept. of Computer Science, Beckwith, Laura A., and Burnett, Margaret, 1949-
Abstract:: A human-centric issue that has not been considered in the design of end-user programming environments is whether gender differences exist that are important to the design of these environments. Ignoring this issue would miss the opportunity of enhancing the effectiveness of end-user programmers by incorporating appropriate mechanisms to support gender-associated...
Resource Type:: Research Paper

The impact of two orthogonal factors in interactive fault localization

Creator:: Oregon State University. Dept. of Computer Science, Ruthruff, Joseph Ronald, Burnett, Margaret, 1949-, and Rothermel, Gregg
Abstract:: End users develop more software than any other group of programmers, using software authoring devices such as email filtering editors, by-demonstration macro builders, and spreadsheet environments. Despite this, there has been only a little research on finding ways to help these programmers with the dependability of the software they create....
Resource Type:: Research Paper

A POMDP approximation algorithm that anticipates the need to observe

Creator:: Oregon State University. Dept. of Computer Science, Zubek, Valentina Bayer, and Dietterich, Thomas Glen
Abstract:: This paper introduces the even-odd POMDP an approximation to POMDPs Partially Observable Markov Decision Problems in which the world is assumed to be fully observable every other time step. This approximation works well for problems with a delayed need to observe. The even-odd POMDP can be converted into an equivalent...
Resource Type:: Research Paper

Scaling up an end-user dependability framework for spreadsheets

Creator:: Oregon State University. Dept. of Computer Science, Creelan, Tyler, and Fisher, Marc Randall
Abstract:: The WYSIWYT (What You See is What You Test) methodology applies formal analysis and testing techniques to the spreadsheet paradigm. So far the methodology has been applied to a research spreadsheet prototype, Forms/3. However, this prototype lacks the mathematical libraries, referential functions, ranges, and macros of commercial spreadsheets like Excel...
Resource Type:: Research Paper

Effectiveness of end-user debugging software features : are there gender issues?

Creator:: Oregon State University. Dept. of Computer Science, Beckwith, Laura A., Burnett, Margaret, 1949-, Wiedenbeck, Susan, Cook, Curtis R., Sorte, Shraddha, and Hastings, Michelle
Abstract:: Although gender differences in a technological world are receiving significant research attention, much of the research and practice has aimed at how society and education can impact the successes and retention of female computer science professionals—but the possibility of gender issues within software has received almost no attention. If gender...
Resource Type:: Research Paper

Gencel : a program generator for correct spreadsheets

Creator:: Oregon State University. Dept. of Computer Science, Erwig, Martin, Abraham, Robin, Cooperstein, Irene, and Kollmansberger, Steven
Abstract:: A huge discrepancy between theory and practice exists in one popular application area of functional programming--spreadsheets. Although spreadsheets are the most frequently used (functional) programs, few formal models of computation and type systems exist that would provide the foundation for creating reliable spreadsheets. Consequently, existing spreadsheets contain many errors, some...
Resource Type:: Research Paper

ScholarsArchive@OSU

Machine learning for activity recognition

Pruning improves heuristic search for cost-sensitive learning

Integrating learning from examples into the search for diagnostic policies

Two heuristics for solving POMDPs having a delayed need to observe

Interactive fault localization for end-user programmers : a think aloud study

Learning diagnostic policies from examples by systematic search

Improving SVM accuracy by training on auxiliary data sources

An integrated testing and fault localization methodology for spreadsheet languages

Interactive, visual fault localization support for end-user programmers

Gender : an important factor in end-user programming environments?

The impact of two orthogonal factors in interactive fault localization

A POMDP approximation algorithm that anticipates the need to observe

Scaling up an end-user dependability framework for spreadsheets

Effectiveness of end-user debugging software features : are there gender issues?

Gencel : a program generator for correct spreadsheets

Limit your search

Creator

Date

Decade

Language

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search