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The following topics are dealt with: system sciences; collaboration systems and technologies; decision technologies and service sciences; digital media content and communication; electronic government; future electric power systems, smart grids, information technology in health care; Internet and the digital economy; knowledge management systems; organizational systems and technology and software...
Although many aids such as architectural styles and patterns are now available for software architects, making optimal design decisions on appropriate architectural structures still requires significant creativity. In an effort to introduce a more direct link between an architectural decision and its consequences, a finer grained architectural concept called a tactic has emerged. Since its introduction,...
I examined whether and how motivational orientations in the social domain (conceptualized as status striving and communion striving) and in the task domain (conceptualized as achievement striving) predict two types of discretionary behaviors: knowledge sharing and creativity. Data collected from full-time employees confirmed the positive relationship between achievement striving (but not the other...
The disparity between data collected in rural and urban counties is often detrimental in the appropriate analysis of cancer care statistics. Low counts drastically affect the incidence and mortality rates of the data, leading to skewed statistics. In order to more accurately report the data, various levels of aggregation have been used (grouping counties by population, age percentages, etc.); however,...
Research has indicated that Group Support Systems are most successful when offered in combination with facilitation or at least training. However the need for human support creates a serious barrier for use. In this paper we evaluated the use of a GSS for a multi-step creativity task. The groups using this GSS got no training, no experience and no support, and all handed in a report with the requested...
Rather than orienting rooftop installation of photovoltaics (PV) to maximize power for the individual customer-generator, we analyze design and performance of integrated PV for two alternate objectives: 1.) maximizing the volume of grid sellbacks, and 2.) maximizing customer-generator revenue through net metering. These alternative orientation strategies attempt to maximize power output during times...
The latent semantic indexing (LSI) methodology for information retrieval applies the singular value decomposition to identify an eigensystem for a large matrix, in which cells represent the occurrence of terms (words) within documents. This methodology is used to rank text documents, such as Web pages or abstracts, based on their relevance to a topic. The LSI was introduced to address the issues of...
The feasibility of using dataflow systems for running complex graph queries is studied in this paper. A general query optimization framework for parallel dataflow systems is also proposed. The proposed methods are used to optimize a suite of benchmark queries, and their effectiveness is evaluated. The performance of the optimized queries is measured on an actual parallel dataflow machine using a large...
The knowledge requirements of managing emergencies are inherently dynamic and evolving in nature. Existing KM systems in the context of emergency management are essentially static. This paper suggests the use of multi-agent systems for implementation of a more reliable and dynamic emergency planning and response system that can support the evolutionary nature of knowledge in emergencies. To validate...
Proxy limits are used to represent voltage constraints from an AC power flow as line flow constraints in a DC power flow. When a DC power flow is used to settle markets, the use of proxy limits can introduce errors in LMPs, dispatch, or both. This paper describes a method to obtain the optimal set of proxy limits for known voltage constraints. We discuss the general properties of these proxy limits.
Across power systems, large classes of identical devices can be found which support the system operation (transformers, breakers, switches, utility poles, etc.) The problem of their operational management is often aggravated by in-service failures and associated additional costs. Part of asset management strategy is to learn the failure characteristics of classes of devices in service and attempt...
An important difference among approaches to software requirements specification is the degree of formality of the specification process itself. In this paper we explore 12 approaches to security requirements specification. We divide the 12 approaches into two distinct groups, those that follow a formal specification process and those that follow an informal one. We evaluate and compare the benefits...
As with other areas of digital forensics the validity and in some cases the sheer possibility of media analysis depends upon successfully acquisition of data from the media. The analysis of acquired Random Access Memory has been an active area of recent research. This paper demonstrates a USB based method of memory acquisition invoked via a system reboot. The method does not depend upon the operating...
NASPI is a collaborative effort between the U.S. Department of Energy (DOE), the North American Electric Reliability Corporation (NERC), and North American electric utilities, vendors, consultants, federal and private researchers and academics. NASPInet is an effort to develop an "industrial grade", secure, standardized, distributed, and expandable data communications infrastructure to support...
Many power markets around the world have been facing inadequacy with generation capacity investment to meet the growing demand. Among various frameworks directed towards this problem, capacity markets have emerged in major eastern US power markets. In this paper, a prototype capacity market is discussed which is consistent with the trend of convergence of market design. Based on this, the critical...
The opportunities and challenges of implementing a smart electric supply system are discussed, including how to integrate the local public goods of electric system reliability, and increasingly of environmental compliance, in an efficient way. The full potential of the smart grid cannot be attained, however, without the wide-spread availability of real-time pricing for electricity so that all parties,...
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