Digital Commons Network^™

Design Of Partially Supervised Classifiers For Multispectral Image Data, Byeungwoo Jeon, David Landgrebe

Department of Electrical and Computer Engineering Technical Reports

This report addresses a partially supervised classification problem, especially when the class definition and corresponding training samples are provided a pnori only for just one particular class. In practical applications of pattern classification techniques, a frequently observed characteristic is the heavy, often nearly impossible requirements on representative prior statistical class characteristics of all classes in a given data set. Considering the effort in both time and man-power required to have a well-defined, exhaustive list of classes with a corresponding representative set of training samples, this "partially" supervised capability would be very desirable, assuming adequate classifier performance can be obtained. Two …

Decentralized Global Transaction Management In Multidatabase Systems, Aidong Zhang, Jiansan Chen, Ahmed K. Elmagarmid, Omran Bukhres

Department of Computer Science Technical Reports

No abstract provided.

Symbolic Methods In Computer Graphics And Geometric Modeling (Ph.D. Thesis), Andrew Vasanth Royappa

Department of Computer Science Technical Reports

No abstract provided.

Robust Regression And Outlier Set Estimation Using Likelihood Reasoning, R. L. Kashyap', S. Maiyuran

Department of Electrical and Computer Engineering Technical Reports

We con iid er the simultaneous estimation of the outlier set and the regression parameters using the ~corJtaminatcdd ata set, A, which has many members obeying the linear model, but some which do not. A precise definition of outliers is given using set theory. Fixing the iers to be L, the optimum set of inliers is chosen as the set having the highest log all subsets of A of size N-L, bJ being the size of A. We define the concept of the data set A into inlien and outliers, and show that the local maxima of the likelihood fu …

An Interactive X-Window Based User Interface For The Xox Solid Modeling Library, Poting Wu, Elias N. Houstis

Department of Computer Science Technical Reports

No abstract provided.

New Algorithms For Minimizing The Longest Wire Length During Circuit Compaction, Susanne E. Hambrusch, Hung-Yi Tu

Department of Computer Science Technical Reports

No abstract provided.

"Look Back And Say 'So What'": The Limitations Of The Generalist Tutor, Jean Kiedaisch, Sue Dinitz

The Writing Center Journal

No abstract provided.

Information And Normal Backwardation As Determinants Of Trading Performance: Evidence From The North-Sea Oil Forward Market, Gordon M. Phillips, Robert J. Weiner

Purdue CIBER Working Papers

In this paper we take advantage of a unique micro-database on forward trading in the international petroleum market, with information on the buyer and seller in each transaction. We utilize transaction-specific data to test directly predictions from the theory of normal backwardation vs. information-based predictions of who profits in these markets. We find that no trader groups make significan profits on interday measures. Within the day, however, groups likely to have superior information do make significant profits. The results are not supportive of normal backwardation, but are consistent with the time pattern of information dissemination in this market--deals made during …

The Effect Of Trade Induced Displacement On Unemployment And Wages, Jon D. Haveman

Purdue CIBER Working Papers

This study provides an investigation into the differences in the postdisplacement labor market experiences of workers separated from declining traded, expanding traded and nontraded industries. The results presented provide the beginnings of a bridge across the gap between what is known and what is perceived regarding the allocative efficiency effects of trade-related labor displacements. The strategy of the paper is to relate the postdisplacement experience of individuals to changes in the competitive position of the industry from which the individual was displaced. The investigative lens is primarily focused on the impact of changing industry competitiveness on the duration of unemployment …

Foreign Currency Translation Under Two Case-Integrated And Isolated Economies, Stephen R. Goldberg, Joseph H. Godwin

Purdue CIBER Working Papers

Beaver and Wolfson (1982 BW) identify economic interpretability and symmetry as desirable properties for financial statement translation. They then analyze translation methods with respect to these properties assuming perfect and complete markets between and within both countries (referred to, here, as the integrated economics case). This study extends BW's analysis by examining isolated economics characterized by perfect and complete internal markets and a random relationship between prices and exchange rates. In BW's integrated economics case, inflation differentials drive exchange rate changes. No exchange rish exists, although monetary assets are exposed to the risk of unexpected inflation. Isolated economies expose monetary …

Tutoring Esl Students: Issues And Options, Muriel Harris, Tony Silva

Purdue Writing Lab/Purdue OWL Publications

No abstract provided.

Would You Run It Here ... Or There? (Ahs: Automatic Heterogeneous Supercomputing), H. G. Dietz, W. E. Cohen, B. K. Grant

Department of Electrical and Computer Engineering Technical Reports

Parallel programs often exhibit strong preferences for different system structures, and machines with the ideal structures may all be available within a single heterogeneous network. There is also the complication that, although a particular application might execute fastest when running by itself on one system, the best turnaround time might result from running the program on a diffeient system that is less heavily loaded at the time the job is submitted. In this paper, we suggest that application programmers should be able to write their code using whatever programming model, control or data parallel, they feel is most appropriate - …

A Spectral Flux Method For Solving The Boltzmann Equation, Muhammad A. Alam, Mark A. Stettler, Mark S. Lundstrom

Department of Electrical and Computer Engineering Faculty Publications

A spectral method for solving the Boltzmann equation by the scattering matrix approach is presented, The algorithm discussed can be used to simulate both bulk and device properties with arbitrary field profiles. Although the primary goal is to reduce the data storage problem of the scattering matrix approach, many of the concepts and mathematical properties developed may be useful for other traditional spectral methods as well.

Compiler-Assisted Cache Coherence, Chiiwen Liou, Henry G. Dietz

Department of Electrical and Computer Engineering Technical Reports

Although it is convenient to program multiprocessors as though all processors share access to the same memory, it is difficult to construct hardware directly implementing this model. Allowing each processor to have its own independent cache partially solves this problem; unfortunately, different caches might hold different values for the same main memory address. Making the cache hardware always be coherent - one value per address - makes the hardware expensive and slow. This paper proposes compiler analysis to generate explicit cache control instructions to ensure that all program memory accesses execute as though the caches were coherent. Compared to other …

A Coarse-Grained, Architecture-Independent Approach For Connected Component Labeling, Mikhail J. Atallah, Frank Dehne, Susanne E. Hambrusch

Department of Computer Science Technical Reports

No abstract provided.

An Optimal Algorithm For Shortest Paths On Weighted Interval And Circular-Arc Graphs With Applications, Mikhail J. Atallah, Danny Z. Chen, D. T. Lee

Department of Computer Science Technical Reports

No abstract provided.

Topologically Correct Approximations Of Arbitrary Rational Parametric, Chandrajit L. Bajaj, Andrew V. Royappa

Department of Computer Science Technical Reports

No abstract provided.

A Unifying Approach To Hierarchical Transaction Management In Multidatabase Systems, Ahmed K. Almagarmid, Aidong Zhang

Department of Computer Science Technical Reports

No abstract provided.

On The Semantics Of Generative Geometry Representations, Christoph M. Hoffmann

Department of Computer Science Technical Reports

No abstract provided.

Humor And The Serious Tutor, Steve Sherwood

The Writing Center Journal

No abstract provided.

Tutors As Teachers: Assisting Esl/Efl Students In The Writing Center, Terese Thonus

The Writing Center Journal

No abstract provided.

From Silence To Noise: The Writing Center As Critical Exile, Nancy Welch

The Writing Center Journal

No abstract provided.

A Defense Of Dualism: The Writing Center And The Classroom, Dave Healy

The Writing Center Journal

No abstract provided.

Rethinking Writing Center Conferencing Strategies For The Esl Writer, Judith K. Powers

The Writing Center Journal

No abstract provided.

Esl And Native-English Speaking Writers And Pedagogies-The Issue Of Difference: A Review Essay, Carol Severino

The Writing Center Journal

No abstract provided.

The "Doodles" In Context: Qualifying Claims About Contrastive Rhetoric, Carol Severino

The Writing Center Journal

No abstract provided.

Subgrade Resilient Modulus For Pavement Design And Evaluation, Woojin Lee, Nihal C. Bohra, Adolph G. Altschaeffl, Thomas D. White

JTRP Technical Reports

The main goal of this study was to develop a set of testing procedure for resilient modulus and to provide a set of resilient modulus data on typical Indiana soils. Soils tested were five cohesive soils and one granular soil. Resilient modulus tests were performed in the laboratory on a fully automated repeated-load triaxial equipment according to AASHTO T 274-82.

A set of correlations was developed between the resilient modulus and the unconfined compression test results for normal and thawed subgrade conditions, based on the test results on the specimen sampled from existing subgrades. Freeze-thaw and post compaction water content …

Chemical Admixtures Of Highway Concrete: Fundamental Research And A Guide To Usage, Part Ii - Quantitative Analysis Of Interactions Between Portland Cements And Superplasticizers, Sidney Diamond, Keisuke Matsukawa

JTRP Technical Reports

This report is made up to two distinct elements. Part II consists of a detailed record of laboratory research carried out to develop a pattern for physicochemical investigation of admixture effects. The procedures developed were then applied to the study of the detailed chemical interactions undergone by several different kinds of superplasticizer admixtures studied with a range of cements displaying various characteristics. Specific conclusions were drawn concerning the effects on superplasticizer effectiveness of certain cement characteristics, especially nature of the gypsum component and of cement alkali content.

Multiobjective Design Of Service Routes, J. R. Wright, Jin-Yuan Wang

JTRP Technical Reports

The purpose of this research has been the design of a computer-based decision support system for use in the design of service routes on the Indiana intrastate highway system. The following work has been completed for this purpose:

1) Acquisition of a 1:100,000 scale DLG data representation of the entire state transportation network.

2) Reclassification of those data with the aid of a computer-based interactive data filter and participation by DOT maintenance personnel from 6 districts.

3) Development of several route design algorithm components designed specifically for addressing the problem of routing snow and ice control vehicles for INDOT.

4) …

Embankment Widening And Grade Raising On Soft Foundation Soils, Phase 2, Scott Ludlow, Wai-Fah Chen, Philippe L. Bourdeau, C. W. Lovell

JTRP Technical Reports

No abstract provided.