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2005

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Articles 3631 - 3660 of 5573

Full-Text Articles in Physical Sciences and Mathematics

Privacy-Preserving Top-N Recommendation On Horizontally Partitioned Data, Huseyin Polat, Wenliang Du Jan 2005

Privacy-Preserving Top-N Recommendation On Horizontally Partitioned Data, Huseyin Polat, Wenliang Du

Electrical Engineering and Computer Science - All Scholarship

Collaborative filtering techniques are widely used by many E-commerce sites for recommendation purposes. Such techniques help customers by suggesting products to purchase using other users’ preferences. Today’s top-recommendation schemes are based on market basket data, which shows whether a customer bought an item or not. Data collected for recommendation purposes might be split between different parties. To provide better referrals and increase mutual advantages, such parties might want to share data. Due to privacy concerns, however, they do not want to disclose data. This paper presents a scheme for binary ratings-based top-N recommendation on horizontally partitioned data, in which two …

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A State-Free Data Delivery Protocol For Multihop Wireless Sensor Networks, Dazhi Chen, Jing Deng, Pramod K. Varshney Jan 2005

A State-Free Data Delivery Protocol For Multihop Wireless Sensor Networks, Dazhi Chen, Jing Deng, Pramod K. Varshney

Electrical Engineering and Computer Science - All Scholarship

A novel, state-free, and competition-based data delivery protocol, called State-free Implicit Forwarding (SIF), is proposed for multihop wireless sensor networks. The SIF protocol assumes moderate node density and distance-to-sink awareness. The state-free feature of SIF makes it robust to high network dynamics. SIF also combines the tasks of routing and MAC, via cross-layer design, to simplify the complexity of the protocol stack in sensors and to save precious network resources. Simulation results are presented to show that SIF performs better than some previously proposed protocols for data delivery in terms of communication overhead, packet delivery ratio, and average packet delay.

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Decision Fusion Rules In Multi-Hop Wireless Sensor Networks, Ying Lin, Biao Chen, Pramod K. Varshney Jan 2005

Decision Fusion Rules In Multi-Hop Wireless Sensor Networks, Ying Lin, Biao Chen, Pramod K. Varshney

Electrical Engineering and Computer Science - All Scholarship

We consider in this paper the decision fusion problem for a wireless sensor network (WSN) operating in a fading environment. In particular, we develop channel-aware decision fusion rules for a resource constrained WSN where decisions from local sensors may go through multi-hop transmission to reach a fusion center. Each relay node employs a binary relay scheme whereby the relay output is inferred from the channel impaired observation received from its source node. This estimated binary decision is subsequently transmitted to the next node until it reaches the fusion center. Under a flat fading channel model, we derive the optimum fusion …

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Gridbased Collaboration In Interactive Data Language Applications, Minjun Wang, Geoffrey C. Fox, Marlon Pierce Jan 2005

Gridbased Collaboration In Interactive Data Language Applications, Minjun Wang, Geoffrey C. Fox, Marlon Pierce

Electrical Engineering and Computer Science - All Scholarship

Interactive Data Language (IDL) is an array-oriented data analysis and visualization application, which is widely used in research, commerce, and education. It is meaningful to make user IDL applications collaborative between computers over networks, using a common message broker as the underlying communication system. In order to achieve the global collaboration, we have brought together in the research a Grid-based Collaboration paradigm, a Shared Event model, different implementing structures, methodologies and technologies. We have succeeded in our prototype codes, and we are currently working on a real life IDL application package to make it collaborative. At the same time, we …

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Reliability-Centric High-Level Synthesis, S. Tosun, N. Mansouri, E. Arvas, Mahmut Kandemir, Yuan Xie Jan 2005

Reliability-Centric High-Level Synthesis, S. Tosun, N. Mansouri, E. Arvas, Mahmut Kandemir, Yuan Xie

Electrical Engineering and Computer Science - All Scholarship

Importance of addressing soft errors in both safety critical applications and commercial consumer products is increasing, mainly due to ever shrinking geometries, higher-density circuits, and employment of power-saving techniques such as voltage scaling and component shut-down. As a result, it is becoming necessary to treat reliability as a first-class citizen in system design. In particular, reliability decisions taken early in system design can have significant benefits in terms of design quality. Motivated by this observation, this paper presents a reliability-centric high-level synthesis approach that addresses the soft error problem. The proposed approach tries to maximize reliability of the design while …

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Prototype Of Fault Adaptive Embedded Software For Large-Scale Real-Time Systems, Derek Messie, Mina Jung, Jae C. Oh, Shweta Shetty, Steven Nordstrom, Michael Haney Jan 2005

Prototype Of Fault Adaptive Embedded Software For Large-Scale Real-Time Systems, Derek Messie, Mina Jung, Jae C. Oh, Shweta Shetty, Steven Nordstrom, Michael Haney

Electrical Engineering and Computer Science - All Scholarship

This paper describes a comprehensive prototype of large-scale fault adaptive embedded software developed for the proposed Fermilab BTeV high energy physics experiment. Lightweight self-optimizing agents embedded within Level 1 of the prototype are responsible for proactive and reactive monitoring and mitigation based on specified layers of competence. The agents are self-protecting, detecting cascading failures using a distributed approach. Adaptive, reconfigurable, and mobile objects for reliability are designed to be self-configuring to adapt automatically to dynamically changing environments. These objects provide a self-healing layer with the ability to discover, diagnose, and react to discontinuities in real-time processing. A generic modeling environment …

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Multi-Objective Mobile Agent Routing In Wireless Sensor Networks, Ramesh Rajagopalan, Chilukuri K. Mohan, Pramod Varshney, Kishan Mehrotra Jan 2005

Multi-Objective Mobile Agent Routing In Wireless Sensor Networks, Ramesh Rajagopalan, Chilukuri K. Mohan, Pramod Varshney, Kishan Mehrotra

Electrical Engineering and Computer Science - All Scholarship

A recent approach for data fusion in wireless sensor networks involves the use of mobile agents that selectively visit the sensors and incrementally fuse the data, thereby eliminating the unnecessary transmission of irrelevant or non-critical data. The order of sensors visited along the route determines the quality of the fused data and the communication cost. We model the mobile agent routing problem as a multi-objective optimization problem, maximizing the total detected signal energy while minimizing the energy consumption and path loss. Simulation results show that this problem can be solved successfully using evolutionary multi-objective algorithms such as EMOCA and NSGA-II. …

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Adapting H.323 Terminals In A Service-Oriented Collaboration System, Wenjun Wu, Hasan Bulut, Ahmet Uyar, Geoffrey C. Fox Jan 2005

Adapting H.323 Terminals In A Service-Oriented Collaboration System, Wenjun Wu, Hasan Bulut, Ahmet Uyar, Geoffrey C. Fox

Electrical Engineering and Computer Science - All Scholarship

Global Multimedia Collaboration System (Global-MMCS), a scalable, robust and service-oriented collaboration system, can bridge H.323, SIP, Access Grid clients and 2.5G/3G cellular phones in audiovisual collaborations. The H.323 gateway in Global-MMCS enables H.323 terminals to interact with other clients, and provides them the complete H.323 conference control services.

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Instantiations Of Shared Event Model In Grid-Based Collaboration, Minjun Wang, Geoffrey C. Fox, Marlon Pierce Jan 2005

Instantiations Of Shared Event Model In Grid-Based Collaboration, Minjun Wang, Geoffrey C. Fox, Marlon Pierce

Electrical Engineering and Computer Science - All Scholarship

The Internet is a global infrastructure that brings resources and people together. Diverse fields are prospering on it, such as Grid computing and collaboration. We demonstrate the Grid-based Collaboration idea by making three interface applications collaborative between computers over networks, using a common message broker as the underlying communication system. To achieve the global collaboration, we have brought together in the research a Grid-based Collaboration paradigm, a Shared Event model, different implementing structures, methodologies and technologies. We describe the applications’ event structures in messages coordinating the Grid-base collaboration. We further abstract the collaboration of the applications to be collaboration between …

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Searching For High-Value Rare Events With Uncheatable Grid Computing, Wenliang Du, Michael T. Goodrich Jan 2005

Searching For High-Value Rare Events With Uncheatable Grid Computing, Wenliang Du, Michael T. Goodrich

Electrical Engineering and Computer Science - All Scholarship

High-value rare-event searching is arguably the most natural application of grid computing, where computational tasks are distributed to a large collection of clients (which comprise the computation grid) in such a way that clients are rewarded for performing tasks assigned to them. Although natural, rare-event searching presents significant challenges for a computation supervisor, who partitions and distributes the search space out to clients while contending with “lazy” clients, who don’t do all their tasks, and “hoarding ” clients, who don’t report rare events back to the supervisor. We provide schemes, based on a technique we call chaff injection, for efficiently …

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Searching For High-Value Rare Events With Uncheatable Grid Computing, Wenliang Du, Michael T. Goodrich Jan 2005

Searching For High-Value Rare Events With Uncheatable Grid Computing, Wenliang Du, Michael T. Goodrich

Electrical Engineering and Computer Science - All Scholarship

High-value rare-event searching is arguably the most natural application of grid computing, where computational tasks are distributed to a large collection of clients (which comprise the computation grid) in such a way that clients are rewarded for performing tasks assigned to them. Although natural, rare-event searching presents significant challenges for a computation supervisor, who partitions and distributes the search space out to clients while contending with “lazy” clients, who don’t do all their tasks, and “hoarding ” clients, who don’t report rare events back to the supervisor. We provide schemes, based on a technique we call chaff injection, for efficiently …

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The Role Of Feeding Behavior In Sustaining Copepod Populations In The Tropical Ocean, J. D. Wiggert, A. G. E. Haskell, G.-A. Paffenhofer, E. E. Hofmann, J. M. Klinck Jan 2005

The Role Of Feeding Behavior In Sustaining Copepod Populations In The Tropical Ocean, J. D. Wiggert, A. G. E. Haskell, G.-A. Paffenhofer, E. E. Hofmann, J. M. Klinck

CCPO Publications

A fundamental question regarding marine copepods is how the many species coexist and persist in the oligotrophic environment (i.e. Hutchinson’s paradox). This question is addressed with a stochastic, object-oriented Lagrangian model that explicitly simulates the distinct foraging behaviors of three prominent tropical species: Clausocalanus furcatus, Paracalanus aculeatus and Oithona plumifera. The model also individually tracks all prey cells. Each particle’s motion combines sinking, turbulent diffusion and active swimming when applicable. The model successfully simulates observed size partitioned carbon uptake rates. Based on the model results, the wide-ranging translational ambit employed by C. furcatus is best suited for the acquisition …

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Time In Service To Historical Ecology, Ted L. Gragson Jan 2005

Time In Service To Historical Ecology, Ted L. Gragson

Ecological and Environmental Anthropology (University of Georgia)

Historical Ecology is one of the ascendant views in ecological and environmental anthropology. It originates in the intellectual transformation of history and ecology during the last 50 years, and seeped into anthropology in the last 10 to 15 years. Historical Ecology is increasingly recognized as one of the key approaches in the discipline helping to advance our understanding of what it means to be human.
There are numerous definitions of historical ecology, but the anthropological challenge is to place human decision-making, and the consciousness that drives it, at the center of our analyses of the human-environmental relationship (Crumley 1994, Whitehead …

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Letter From The Editors, The Editors Jan 2005

Letter From The Editors, The Editors

Ecological and Environmental Anthropology (University of Georgia)

We of the new journal Ecological and Environmental Anthropology thank you for visiting us and hope to engage you in the discussions and debates we aim to spark. We would like the journal to serve as a nexus for the free flow of ideas of scholars and practitioners in a wide range of fields, since many disciplines are both contained within, and influenced by, ecological and environmental anthropology.
Interest in and compassion for people lie at the heart of anthropology, and we would like to dedicate our first issue to the people of Asia and Africa who became victims of …

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An Overview Of The 2nd National Invasive Rodent Summit, Gary Witmer, John Eisemann Jan 2005

An Overview Of The 2nd National Invasive Rodent Summit, Gary Witmer, John Eisemann

Wildlife Damage Management Conference Proceedings

On October 19-21, 2004, the USDA, APHIS, Wildlife Services, National Wildlife Research Center (NWRC) in Fort Collins, CO, hosted the 2nd National Invasive Rodent Summit. The conference was jointly sponsored by the NWRC, the U.S. Fish and Wildlife Service (FWS) and The Wildlife Society’s Wildlife Damage Management Working Group. The conference was a follow-up to the 2001 “Rat Summit” held in San Francisco, CA. Like the “Rat Summit,” this conference emphasized the management of rodents to conserve plants, other wildlife and habitats. The scope of the problem, concerns, species involved, and lands affected were all considered. The conference began with …

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Evaluation Of A New Strategy For Control Of Bovine Tuberculosis In Michigan White-Tailed Deer: Year 1 Progress Report, Stephen Schmitt, Daniel O'Brien, Elaine Carlson, David Smith, Zachary Cooley, Brent Rudolph, Graham Hickling, Graham Nugent, Peter Butchko Jan 2005

Evaluation Of A New Strategy For Control Of Bovine Tuberculosis In Michigan White-Tailed Deer: Year 1 Progress Report, Stephen Schmitt, Daniel O'Brien, Elaine Carlson, David Smith, Zachary Cooley, Brent Rudolph, Graham Hickling, Graham Nugent, Peter Butchko

Wildlife Damage Management Conference Proceedings

The State of Michigan is striving to eliminate bovine tuberculosis (Tb) infection among free-ranging white-tailed deer in the northeastern Lower Peninsula of the state. Aggressive reduction in the overall deer population abundance may help to further reduce TB prevalence, but this course of action is unacceptable to many hunters and landowners. Targeted culling of sick deer would likely be far more acceptable to these stakeholders, so in the winter of 2003 the Michigan Department of Natural Resources pilot-trialed a new strategy based on live-trapping and Tb-testing of wild deer. The field study was conducted in a township with relatively high …

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Bovine Tb Eradication Project – Recognizing Hot Button Issues, Bridget Kavanagh-Patrick Jan 2005

Bovine Tb Eradication Project – Recognizing Hot Button Issues, Bridget Kavanagh-Patrick

Wildlife Damage Management Conference Proceedings

The Michigan Departments of Agriculture, Community Health, and Natural Resources, US Department of Agriculture (USDA) and Michigan State University work cooperatively together as the bovine TB eradication project partners. The interagency group combines expertise in epidemiology, veterinary and human medicine, pathology, wildlife biology, animal husbandry, regulatory law and policy and risk communications. The stakeholders, those impacted by the disease, include agriculture and tourism industry representatives, “Mom-and-Pop” businesses, hunters, wildlife enthusiasts, farmers, Local Health Departments and legislators. The regulatory agencies are the above mentioned project partners, excluding MSU and USDA Wildlife Services, both of which offer services to agencies and stakeholders. …

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Monitoring Raccoon Rabies In Alabama: The Potential Effects Of Habitat And Demographics, Wendy Arjo, Christine Fisher, James Armstrong, Dana Johnson, Frank Boyd Jan 2005

Monitoring Raccoon Rabies In Alabama: The Potential Effects Of Habitat And Demographics, Wendy Arjo, Christine Fisher, James Armstrong, Dana Johnson, Frank Boyd

Wildlife Damage Management Conference Proceedings

Density, morphometrics, and disease prevalence of raccoon populations were determined in 4 habitats (agriculture, riverine, managed, and forested) in central Alabama. In addition we monitored 71 collared raccoons to determine survival. Density estimates were similar in the agriculture (ag) and riverine habitats in central Alabama with 8 raccoons/km2, and lower in the forested habitat at 5 raccoons/ km2. Retention of juveniles did not appear to contribute to observed higher populations in the riverine and ag habitat. Although the riverine and ag, possibly due to supplemental resources, likely provide better habitat for raccoons, we found only body …

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Oral Rabies Vaccination—A Progress Report, Dennis Slate, Charles Rupprecht, Mike Dunbar, Robert Mclean Jan 2005

Oral Rabies Vaccination—A Progress Report, Dennis Slate, Charles Rupprecht, Mike Dunbar, Robert Mclean

Wildlife Damage Management Conference Proceedings

Oral rabies vaccination (ORV) targeting specific wild Carnivora species has emerged as an integral adjunct to conventional rabies control strategies to protect humans and domestic animals. ORV has been applied with progress toward eliminating rabies in red foxes (Vulpes vulpes) in western Europe and southern Ontario, Canada. Beginning in the 1990’s, coordinated ORV was implemented in Texas to contain and eliminate variants of rabies virus in the gray fox (Urocyon cinereoargenteus ) and coyote (Canis latrans ) and in several eastern U.S. States with the goal of preventing spread of raccoon (Procyon lotor ) rabies. …

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Development Of Nicarbazin As A Reproductive Inhibitor For Resident Canada Geese, Kimberly Bynum, Christi Yoder, John D. Eisemann, John Johnston, Lowell Miller Jan 2005

Development Of Nicarbazin As A Reproductive Inhibitor For Resident Canada Geese, Kimberly Bynum, Christi Yoder, John D. Eisemann, John Johnston, Lowell Miller

Wildlife Damage Management Conference Proceedings

Expanding populations of resident Canada geese that remain in suburban and urban areas year-round often result in increased conflicts with humans. Non-lethal and humane means are needed for managing the size of Canada goose flocks residing near or on airports, golf courses, industrial parks, government sites, and city parks. A side effect of nicarbazin, a veterinary drug used to control coccidiosis in chickens, is decreased egg production and hatching. Exploiting this side effect, studies of nicarbazin for reducing the hatchability of eggs from Canada geese were conducted. An initial study in Coturnix quail verified reduction in hatchability in a species …

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Use Of Deer Repellents To Preserve Wildlife Food Plots For Game Birds, Wendy Arjo, Kimberly Wagner, Chad Richardson, Dale L. Nolte Jan 2005

Use Of Deer Repellents To Preserve Wildlife Food Plots For Game Birds, Wendy Arjo, Kimberly Wagner, Chad Richardson, Dale L. Nolte

Wildlife Damage Management Conference Proceedings

Food plots are a vital element for the survival of game bird species such as bobwhite quail (Colinus virginianus) on Fort Riley Military Installation in Kansas. However, white-tailed deer (Odocoileus virginianus) tend to eat the sorghum when it starts to ripen in September and continue feeding on it through November and December, often leaving no food for the quail during the winter. We conducted pen and field trails to determine if repellents were an effective and feasible method to protect grain sorghum food plots from deer damage. Two-choice pen trials with both deer and game bird …

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Conference Participants Jan 2005

Conference Participants

Wildlife Damage Management Conference Proceedings

No abstract provided.

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Use Of Natural Vegetative Barriers To Limit Expansion Of Blacktailed Prairie Dog Towns, David Terrall, Jonathan Jenks, Arthur Smith Jan 2005

Use Of Natural Vegetative Barriers To Limit Expansion Of Blacktailed Prairie Dog Towns, David Terrall, Jonathan Jenks, Arthur Smith

Wildlife Damage Management Conference Proceedings

Prairie dog (Cynomys ludovicianus) control has historically consisted of lethal methods to maintain, reduce, or eliminate populations in South Dakota and throughout the species range. Non-lethal methods of control are desired to meet changing management objectives for the black-tailed prairie dog. The use of naturally occurring buffer strips as vegetative barriers may be effective in limiting prairie dog town expansion. The objectives of this study were: 1) to evaluate effective width of vegetative barriers in limiting prairie dog towns expansion in western South Dakota; and 2) to document effect native vegetation height on expansion of prairie dog towns …

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Badger Movement Ecology In Colorado Agricultural Areas After A Fire, Craig Ramey, Jean Bourassa Jan 2005

Badger Movement Ecology In Colorado Agricultural Areas After A Fire, Craig Ramey, Jean Bourassa

Wildlife Damage Management Conference Proceedings

While investigating the American badger (Taxidea taxus) in eastern Colorado’s wheatlands, we studied 3 badgers which were affected by a 2.1 km2 man-made fire and compared them to 2 adjacent badgers unaffected by the fire. All badgers were equipped with radio-telemetry collars and generally located day and night for approximately 1 month pre-fire and 3 weeks post-fire. Three point triangulation locations were converted into a global information system database. Adaptive kernel analyses compared pre- and post-fire horizontal: home ranges (i.e. 95% utilization areas, UAs), core activity areas (50% UAs), movements, den and habitat use patterns. Mean (x) …

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Black-Tailed Prairie Dog Colony Dynamics In South Dakota Over A 10-Year Period, Kathleen Fagerstone, Howard Tietjen, James Glahn, Greg Schenbeck, Jean Bourassa Jan 2005

Black-Tailed Prairie Dog Colony Dynamics In South Dakota Over A 10-Year Period, Kathleen Fagerstone, Howard Tietjen, James Glahn, Greg Schenbeck, Jean Bourassa

Wildlife Damage Management Conference Proceedings

Between 1968 and 1978, aerial photography was used to monitor distribution of blacktailed prairie dog (Cynomys ludovicianus) colonies on a 400-square mile area in South Dakota, including parts of Buffalo Gap National Grassland, Pine Ridge Indian Reservation, and Badlands National Monument (now Badlands National Park). Aerial photographs were taken of the study area in 1968 and annually from 1974 through 1978 at a scale of 1:20,000 (1968) and 1:15,840 (1974- 1978). Prairie dog colonies were identified on the photographs, outlined, and the outline transferred to USGS topographic maps for colony size measurements. This technique reliably detected changes in …

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Effects Of Decoy Gender And Wing Clipping On Capture Success Of Brown-Headed Cowbirds, Scott C. Barras, Thomas Seamans, Jonathan Cepek Jan 2005

Effects Of Decoy Gender And Wing Clipping On Capture Success Of Brown-Headed Cowbirds, Scott C. Barras, Thomas Seamans, Jonathan Cepek

Wildlife Damage Management Conference Proceedings

Due to the risks that nest parasitism by brown-headed cowbirds (Molothrus ater) pose to breeding Kirtland’s Warblers (Dendroica kirtlandii) and other songbirds, refinement of existing cowbird trapping techniques and development of new techniques are needed to improve the efficiency of cowbird removal. We conducted experiments during 1999-2002 to determine if the use of male and female decoys affected capture rates of cowbirds, and to determine if clipping primaries on one wing of female decoys to prevent escapes affected cowbird capture success. These experiments were conducted using 6 permanently placed modified Australian crow traps (decoy traps) measuring …

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Demographic And Spatial Responses Of Coyotes To Changes In Food And Exploitation, Eric Gese Jan 2005

Demographic And Spatial Responses Of Coyotes To Changes In Food And Exploitation, Eric Gese

Wildlife Damage Management Conference Proceedings

Lethal control for reducing carnivore populations is a contentious issue throughout the world. While computer simulations have been developed modeling the effects of population reduction on coyote (Canis latrans) population parameters, testing these hypotheses with empirical data from the field is lacking. We documented the demographic and spatial responses of coyotes to changes in the levels of food resources and human exploitation on the Piñon Canyon Maneuver Site, southeastern Colorado. We captured, radio-collared, and tracked 92 (53 M: 39 F) coyotes from March 1983 to April 1989. Of these, 74 animals were residents from 32 packs, plus 12 …

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Observations On The Use Of The Gnrh Vaccine Gonacon™ In Male White-Tailed Deer (Odocoileus Virginianus), G. Killian, D. Wagner, L. Miller Jan 2005

Observations On The Use Of The Gnrh Vaccine Gonacon™ In Male White-Tailed Deer (Odocoileus Virginianus), G. Killian, D. Wagner, L. Miller

Wildlife Damage Management Conference Proceedings

Observations made over an 11 year period during the development and evaluation of the GnRH vaccine GonaCon™ use in male white-tailed deer (Odocoileus virginianus) are summarized. Sexually mature bucks at the Penn State Deer Research Center were administered a single immunization of GonaCon™ in July. Some males were also given a second boost immunization in September. Compared to similar aged controls, testicular size for treated males was considerably reduced in the first and subsequent years of study, as were testosterone concentrations and sexual libido. During the first year, antler development was relatively normal leading to antler hardening, although …

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Deer-Vehicle Crash Patterns Across Ecoregions In Michigan, Krishnan Sudharsan, Shawn Riley, Brent Riley, Brian Maurer Jan 2005

Deer-Vehicle Crash Patterns Across Ecoregions In Michigan, Krishnan Sudharsan, Shawn Riley, Brent Riley, Brian Maurer

Wildlife Damage Management Conference Proceedings

Deer-vehicle collisions (DVCs) impact the economic and social well being of humans. We examined large-scale patterns behind DVCs across 3 ecoregions: Southern Lower Peninsula (SLP), Northern Lower Peninsula (NLP), and Upper Peninsula (UP) in Michigan. A 3 component conceptual model of DVCs with drivers, deer, and a landscape was the framework of analysis. The conceptual model was parameterized into a parsimonious mathematical model. The dependent variable was DVCs by county by ecoregion and the independent variables were percent forest cover, percent crop cover, mean annual vehicle miles traveled (VMT), and mean deer density index (DDI) by county. A discriminant function …

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A Uniform Approach To Logic Programming Semantics, Pascal Hitzler, Matthias Wendt Jan 2005

A Uniform Approach To Logic Programming Semantics, Pascal Hitzler, Matthias Wendt

Computer Science and Engineering Faculty Publications

Part of the theory of programming and nonymonotonic reasoning concerns the study of fixed-point semantics for these paradigms. Several different semantics have been proposed during the last two decades, and some have been more successful and acknowledged than others. The rationales behind those various semantics have been manifold, depending on one's point of view, which may be that of a programmer or inspired by commonsense reasoning, and consequently the constructions which lead to these semantics are technically very diverse, and the exact relationships between them have not yet been fully understood. In this paper, we present a conceptually new method, …

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