Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 11 of 11

Full-Text Articles in Physical Sciences and Mathematics

Collecting Open Source Intelligence Via Tailored Information Delivery Systems, William Sousan, Qiuming Zhu, Ryan Nickell, William Mahoney, Peter Hospodka Sep 2008

Collecting Open Source Intelligence Via Tailored Information Delivery Systems, William Sousan, Qiuming Zhu, Ryan Nickell, William Mahoney, Peter Hospodka

Computer Science Faculty Publications

The Internet offers a plethora of freely available information for possible use in Open Source Intelligence (OSINT) operations. However, along with this information come challenges in finding relevant information and overcoming information overload. This paper presents the results of an ongoing research in a Tailored Information Delivery Services (TIDS) system that aids users in retrieving relevant information through various open intelligence sources. The TIDS provides a semantics-based query constructor that operates in a “What You Get is What You Need (WYGIWYNTM)” fashion and builds ontology based information tagging, theme extractor, and contextual model.


Information Technology’S Influence On Productivity, Jason Smith Jul 2008

Information Technology’S Influence On Productivity, Jason Smith

Student Work

Previous research has had mixed results correlating information technology investments to increases in productivity. This research surveyed the perceptions of information technology managers to determine the impact that information technology, decentralized decision making, and improved business processes have on productivity. It concluded that information technology’s influence on productivity is to magnify the effect of decentralized decision making and improved business processes.


Guidelines For Evaluating Patterns In The Is Domain, Deepak Khazanchi, John D. Murphy, Stacie Clarke Petter May 2008

Guidelines For Evaluating Patterns In The Is Domain, Deepak Khazanchi, John D. Murphy, Stacie Clarke Petter

Information Systems and Quantitative Analysis Faculty Proceedings & Presentations

Patterns were originally developed in the field of architecture as a mechanism for communicating good solutions to recurring classes of problems. Since then researchers have created patterns to provide guidance and solutions associated with virtual project management, software development and engineering, human computer interaction, and design science research. However, there has been limited emphasis on developing guidelines for evaluating the validity of patterns. In this paper, we propose an evaluation framework for patterns that draws upon the literature associated with patterns, philosophy of science and research methods. The evaluation framework can be used to validate patterns in a more consistent …


From Profiles To Patterns: A New View Of Task-Technology Fit, Ilze Zigurs, Deepak Khazanchi Apr 2008

From Profiles To Patterns: A New View Of Task-Technology Fit, Ilze Zigurs, Deepak Khazanchi

Information Systems and Quantitative Analysis Faculty Publications

Continuing advances in the capabilities of communication and information technologies provide a wide array of interesting ways for people to collaborate across space, time, cultures, and organizational boundaries. While the use of collaboration technologies spreads, researchers seek answers to understanding how best to match different technology capabilities with the tasks that teams need to accomplish. Different theories of task-technology fit have been promoted and these theories help to identify key issues of interest to both researchers and practitioners who seek the answer to the best technology support for collaboration. We examine existing theories of fit for collaboration technology and propose …


Risk Analysis In Extended Enterprise Environments: Identification Of Critical Risk Factors In B2b E-Commerce Relationships, Steve G. Sutton, Clark Hampton, Deepak Khazanchi, Vicky Arnold Apr 2008

Risk Analysis In Extended Enterprise Environments: Identification Of Critical Risk Factors In B2b E-Commerce Relationships, Steve G. Sutton, Clark Hampton, Deepak Khazanchi, Vicky Arnold

Information Systems and Quantitative Analysis Faculty Publications

The focus of this study is to identify the critical risk factors that can be used to assess the impact of B2B e-commerce on overall enterprise risk. We apply the Khazanchi and Sutton (2001) framework for B2B e-commerce assurance is applied as the organizing conceptual model for the study. The framework focuses on three primary risk components: (1) technical risks, (2) application-user risks, and (3) business risks. To identify a critical set of B2B risk factors, structured focus groups applying a nominal group technique were conducted with three internal constituency groups (corporate groups consisting of IS security, internal IT audit, …


Dynamic Energy Aware Task Scheduling For Periodic Tasks Using Expected Execution Time Feedback, Sachin Pawaskar, Hesham Ali Feb 2008

Dynamic Energy Aware Task Scheduling For Periodic Tasks Using Expected Execution Time Feedback, Sachin Pawaskar, Hesham Ali

Computer Science Faculty Proceedings & Presentations

Scheduling dependent tasks is one of the most challenging problems in parallel and distributed systems. It is known to be computationally intractable in its general form as well as several restricted cases. An interesting application of scheduling is in the area of energy awareness for mobile battery operated devices where minimizing the energy utilized is the most important scheduling policy consideration. A number of heuristics have been developed for this consideration. In this paper, we study the scheduling problem for a particular battery model. In the proposed work, we show how to enhance a well know approach of accounting for …


Abstract Answer Set Solvers, Yuliya Lierler Jan 2008

Abstract Answer Set Solvers, Yuliya Lierler

Computer Science Faculty Proceedings & Presentations

Nieuwenhuis, Oliveras, and Tinelli showed how to describe enhancements of the Davis-Putnam-Logemann-Loveland algorithm using transition systems, instead of pseudocode. We design a similar framework for three algorithms that generate answer sets for logic programs: SMODELS, ASP-SAT with Backtracking, and a newly designed and implemented algorithm SUP. This approach to describing answer set solvers makes it easier to prove their correctness, to compare them, and to design new systems.


On The Tradeoff Between Speedup And Energy Consumption In High Performance Computing – A Bioinformatics Case Study, Sachin Pawaskar, Hesham Ali Jan 2008

On The Tradeoff Between Speedup And Energy Consumption In High Performance Computing – A Bioinformatics Case Study, Sachin Pawaskar, Hesham Ali

Computer Science Faculty Proceedings & Presentations

High Performance Computing has been very useful to researchers in the Bioinformatics, Medical and related fields. The bioinformatics domain is rich in applications that require extracting useful information from very large and continuously growing sequence of databases. Automated techniques such as DNA sequencers, DNA microarrays & others are continually growing the dataset that is stored in large public databases such as GenBank and Protein DataBank. Most methods used for analyzing genetic/protein data have been found to be extremely computationally intensive, providing motivation for the use of powerful computers or systems with high throughput characteristics. In this paper, we provide a …


Information Technology Adoption By Small Businesses In Minority And Ethnic Communities, Sajda Qureshi, Anne S. York Jan 2008

Information Technology Adoption By Small Businesses In Minority And Ethnic Communities, Sajda Qureshi, Anne S. York

Information Systems and Quantitative Analysis Faculty Proceedings & Presentations

Information systems adoption by small businesses often is viewed as a basic building block of economic development. Yet, the components that impact business success and thus economic development are mostly unexplored, especially within the context of minority and ethnic communities, both domestically and internationally. Given that IT adoption in small businesses is very often the domain of the business owner, an investigation of how the attributes of individual business owners and the context in which they are embedded is essential. This paper develops an integrative model of the role that IT adoption plays in business success and the economic development …


Adoption Of Information Technology By Micro-Enterprises: Insights From A Rural Community, Sajda Qureshi, Mehruz Kamal, Travis Good Jan 2008

Adoption Of Information Technology By Micro-Enterprises: Insights From A Rural Community, Sajda Qureshi, Mehruz Kamal, Travis Good

Information Systems and Quantitative Analysis Faculty Proceedings & Presentations

It appears that the growth of micro-enterprises is a key driver of economic development in underserved communities. However their growth is limited to only 20% of the economy even though they comprise 87% of businesses in Nebraska. Research has shown that IT adoption can increase their growth by 3.5% but the challenges to IT adoption by microenterprises are many. Current theoretical models on IT adoption focus on the intent to adopt IT in large organizations where employees’ attitudes and perceptions are measured in terms of their objectives within the structures of accountability. Microenterprises are unique in that the intention to …


Synergistic Ideation Through Pairing Participants In Facilitated Group Support Systems Sessions, John D. Murphy, Deepak Khazanchi Jan 2008

Synergistic Ideation Through Pairing Participants In Facilitated Group Support Systems Sessions, John D. Murphy, Deepak Khazanchi

Information Systems and Quantitative Analysis Faculty Publications

Group Support Systems (GSS) have been used and studied in the support of facilitated ideation sessions for years. The norm for these sessions has been for participants to work individually at GSS workstations. A review of applicable literature suggests that pairing participants at GSS workstations could result in higher quality ideas and participant satisfaction. This paper reports the results of a lab experiment that tested for differences between paired and unpaired facilitated GSS sessions. These results suggest that pairing participants can yield higher quality ideas from facilitated ideation without negative consequences.