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Full-Text Articles in Physical Sciences and Mathematics

Elements Of Human Decision-Making, Jens G. Pohl Aug 2006

Elements Of Human Decision-Making, Jens G. Pohl

Collaborative Agent Design (CAD) Research Center

The purpose of this paper is to present some understandings of the human problem-solving activity that we have gained in the Collaborative Agent Design Research Center (CADRC) over the past two decades. Since we feel strongly that the human decision-maker should be an integral component of any computer-based decision-support system, it follows that we would have endeavored to incorporate many of the elements that appear to be important to the user in the design of these systems. The complexity of the human cognitive system is evidenced by the large body of literature that describes problem-solving behavior and the relatively fewer …


Scalable Approaches For Supporting Mpi-Io Atomicity, Peter Aarestad, George K. Thiruvathukal, Avery Ching, Alok Choudhary May 2006

Scalable Approaches For Supporting Mpi-Io Atomicity, Peter Aarestad, George K. Thiruvathukal, Avery Ching, Alok Choudhary

Computer Science: Faculty Publications and Other Works

Scalable atomic and parallel access to noncontiguous regions of a file is essential to exploit high performance I/O as required by large-scale applications. Parallel I/O frameworks such as MPI I/O conceptually allow I/O to be defined on regions of a file using derived datatypes. Access to regions of a file can be automatically computed on a perprocessor basis using the datatype, resulting in a list of (offset, length) pairs. We describe three approaches for implementing lock serving (whole file, region locking, and byterange locking) and compare the various approaches using three noncontiguous I/O benchmarks. We present the details of the …


2006 Chesapeake Bay Bridge Tunnel Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2006

2006 Chesapeake Bay Bridge Tunnel Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


2006 Hampton Roads Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2006

2006 Hampton Roads Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


2006 Gloucester Point Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2006

2006 Gloucester Point Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


2006 Wachapreague Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2006

2006 Wachapreague Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


Secure Data Transmission Using Quibits, Iman Marvian, Saied Hosseini-Khayat Jan 2006

Secure Data Transmission Using Quibits, Iman Marvian, Saied Hosseini-Khayat

Faculty of Informatics - Papers (Archive)

A quantum protocol for secure transmission of data using qubits is presented. This protocol sends one qubit in a round-trip to transmit one bit of data. The protocol offers an improvement over the BB84 QKD protocol. BB84, in conjunction with one-time pad encryption, has been shown to be unconditionally secure. However its security relies on the assumption that the qubit source device does not emit multiple replicas of the same qubit for each transmitted bit. If this happens a multi-qubit emission attack can be launched. In addition, BB84 cannot be used to send predetermined bit strings as it generates a …


Wfms-Based Data Integration For E-Learning, Jianming Yong, Jun Yan, Xiaodi Huang Jan 2006

Wfms-Based Data Integration For E-Learning, Jianming Yong, Jun Yan, Xiaodi Huang

Faculty of Informatics - Papers (Archive)

As more and more organisations and institutions are moving towards the e-learning strategy, more and more disparate data are distributed by different e-learning systems. How to effectively use this vast amount of distributed data becomes a big challenge. This paper addresses this challenge and works out a new mechanism to implement data integration for e-learning. A workflow management system based (WFMS-based) data integration model is contributed to the e-learning.


Comparisons Between Sciamachy And Ground-Based Ftir Data For Total Columns Of Co, Ch4, Co2 And N2o, B Dils, M De Maziere, J F. Muller, T Blumenstock, Nicholas B. Jones, David W. Griffith, C P Rinsland, E Mahieu, S Wood, R De Beek, P Demoulin, M Buchwitz, P Duchatelet, C Frankenberg, A Gloudemans, T Kerzenmacher, I Kramer, J Mellqvist, H Shrijver, A Strandberg, D Smale, W Stremme, A G. Straume, R Sussmann, M Van Den Broek, T Wagner, K Strong, Aldona Wiacek, J R. Taylor, Hans Fast, Thorsten Warneke, Richard L. Mittermeier, Justus Notholt, Voltaire A. Velazco Jan 2006

Comparisons Between Sciamachy And Ground-Based Ftir Data For Total Columns Of Co, Ch4, Co2 And N2o, B Dils, M De Maziere, J F. Muller, T Blumenstock, Nicholas B. Jones, David W. Griffith, C P Rinsland, E Mahieu, S Wood, R De Beek, P Demoulin, M Buchwitz, P Duchatelet, C Frankenberg, A Gloudemans, T Kerzenmacher, I Kramer, J Mellqvist, H Shrijver, A Strandberg, D Smale, W Stremme, A G. Straume, R Sussmann, M Van Den Broek, T Wagner, K Strong, Aldona Wiacek, J R. Taylor, Hans Fast, Thorsten Warneke, Richard L. Mittermeier, Justus Notholt, Voltaire A. Velazco

Faculty of Science - Papers (Archive)

Total column amounts of CO, CH4, CO2 and N2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data from a ground-based quasi-global network of Fourier-transform infrared (FTIR) spectrometers. The SCIAMACHY data considered here have been produced by three different retrieval algorithms, WFM-DOAS (version 0.5 for CO and CH4 and version 0.4 for CO2 and N2O), IMAP-DOAS (version 1.1 and 0.9 (for CO)) and IMLM (version 6.3) and cover the January to December 2003 time period. Comparisons have been made for individual data, as well as for monthly averages. To maximize the number of reliable coincidences …


The Risk Of Public Data Availability On Critical Infrastructure Protection, Roba Abbas Jan 2006

The Risk Of Public Data Availability On Critical Infrastructure Protection, Roba Abbas

Faculty of Informatics - Papers (Archive)

This paper examines the threat of freely available information on critical infrastructure protection (CIP) efforts. Critical infrastructure are the services required to maintain the stability and security of a country, and comprise both physical and cyber infrastructures. These interdependent entities must be protected from natural disasters, accidental errors, and deliberate attacks. The CIP process typically includes vulnerability assessment, risk assessment and risk management, and has been a global concern for many years; the concern now amplified in Australia due to a number of recent events such the 9/11 attacks, and the Bali bombings. The events have called into question the …


Analyzing Harmonic Monitoring Data Using Data Mining, Ali Asheibi, David A. Stirling, Danny Sutanto Jan 2006

Analyzing Harmonic Monitoring Data Using Data Mining, Ali Asheibi, David A. Stirling, Danny Sutanto

Faculty of Informatics - Papers (Archive)

Harmonic monitoring has become an important tool for harmonic management in distribution systems. A comprehensive harmonic monitoring program has been designed and implemented on a typical electrical MV distribution system in Australia. The monitoring program involved measurements of the three-phase harmonic currents and voltages from the residential, commercial and industrial load sectors. Data over a three year period has been downloaded and available for analysis. The large amount of acquired data makes it difficult to identify operational events that impact significantly on the harmonics generated on the system. More sophisticated analysis methods are required to automatically determine which part of …


On The Design Of Early Generation Variety Trials With Correlated Data, Brian R. Cullis, A B. Smith, N. E. Coombes Jan 2006

On The Design Of Early Generation Variety Trials With Correlated Data, Brian R. Cullis, A B. Smith, N. E. Coombes

Faculty of Informatics - Papers (Archive)

This article considers the design of early generation variety trials with a prespecified spatial correlation structure and introduces a new class of partially replicated designs called p-rep designs in which the plots of standard varieties are replaced by additional plots of test lines. We show how efficient p-rep designs can be readily generated using the modified Reactive TABU search algorithm. The expected and realized genetic gain of p-rep and grid plot designs is compared in a simulation study.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Prince Georges County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Prince Georges County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Cecil County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Cecil County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Calvert County, Marcia Berman, Harry Berquist, Sharon Killeen, Karen Reay, Karinna Nunez, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Calvert County, Marcia Berman, Harry Berquist, Sharon Killeen, Karen Reay, Karinna Nunez, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Anne Arundel County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Anne Arundel County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Worcester County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Worcester County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Harford County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Harford County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Somerset County, Marcia Berman, Harry Berquist, Sharon Dewing, Carl Hershner, Helen Rea, Tamia Rudnicky, Daniel E. Schatt, David Weiss, Helen Wood Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Somerset County, Marcia Berman, Harry Berquist, Sharon Dewing, Carl Hershner, Helen Rea, Tamia Rudnicky, Daniel E. Schatt, David Weiss, Helen Wood

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Kent County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Kent County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Talbot County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Talbot County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Development Of The Maryland Shoreline Inventory Methods And Guidelines For Queen Anne’S County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss Jan 2006

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Queen Anne’S County, Marcia Berman, Harry Berquist, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt, David Weiss

Reports

No abstract provided.


Stafford County, Virginia Shoreline Situation Report Methods And Guidelines (2006), Marcia Berman, Harry Berquist, Sharon Dewing, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, David Weiss Jan 2006

Stafford County, Virginia Shoreline Situation Report Methods And Guidelines (2006), Marcia Berman, Harry Berquist, Sharon Dewing, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, David Weiss

Reports

No abstract provided.


Gis Data: Caroline County, Virginia Shoreline Situation Report, Marcia Berman, Harry Berquist, Carl Hershner, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, David Weiss Jan 2006

Gis Data: Caroline County, Virginia Shoreline Situation Report, Marcia Berman, Harry Berquist, Carl Hershner, Sharon Killeen, Karinna Nunez, Karen Reay, Tamia Rudnicky, David Weiss

Data

The data inventory developed for the Shoreline Situation Reports is based on a three-tiered shoreline assessment approach. In most cases this assessment characterizes conditions that can be observed from a small boat navigating along the shoreline. Hand-held GPS units are used to log features observed. The three tiered shoreline assessment approach divides the shorezone into three regions: 1) the immediate riparian zone, evaluated for land use; 2) the bank, evaluated for height, stability, cover and natural protection; and 3) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes. Three GIS coverages are generated. The car_lubc …