ABSTRACT Online auctions are a profitable, exciting, and dynamic part of electronic commerce, and... more ABSTRACT Online auctions are a profitable, exciting, and dynamic part of electronic commerce, and behave in ways, which do not match classical auction theory. This paper models an online auction in terms of a Markov chain on a state space defined by the current ...
... Hasan Pirkul and Vaidyanathan Nagarajan College of Business, The Ohio State University, Cohfm... more ... Hasan Pirkul and Vaidyanathan Nagarajan College of Business, The Ohio State University, Cohfmbus, OH 43210, USA ... concentrator location problem [26,34] where concen-trators do not have to be directly connected to the central site through a dedicated line ("star" topology). ...
... Deception is a deliberate falsification of information by a communicator, with the intent bei... more ... Deception is a deliberate falsification of information by a communicator, with the intent being to mislead the ... to be more uncertain and vague, more nondominated and reticent, show more negative influence, display more ... Each group consisted of three members and a leader. ...
... are treated separately. Mahmoud and Riordan [9], Lanning and Leonard [10] and Irani and Khabb... more ... are treated separately. Mahmoud and Riordan [9], Lanning and Leonard [10] and Irani and Khabbaz [11] considered the design of the telecommunication network together with the allocation of databases. There have also been ...
[1989] Proceedings of the Twenty-Second Annual Hawaii International Conference on System Sciences. Volume III: Decision Support and Knowledge Based Systems Track
A group decision support system should ideally be tailored to the needs of the group on a continu... more A group decision support system should ideally be tailored to the needs of the group on a continuous basis. Since most groups are formed and disbanded frequently, it is usually not feasible to create a group decision support system tailored to meet the specific needs of each group unless there already exists an infrastructure within the organization's computer system to do so. The authors propose such an infrastructure, namely a networked knowledge-based system that can be dynamically configured and reconfigured. The proposed framework allows group members to exchange data and information outside of meetings, resulting in more productive meetings. It can also minimize the necessity for interaction between group members outside of meetings, thus allowing them to utilize their time better.<<ETX>>
In this paper we study the problem of survivable network design (SND). The problem can be stated ... more In this paper we study the problem of survivable network design (SND). The problem can be stated as follows: Given a set of nodes, possible edges and costs for each edge and the number of permitted node or edge failures between each pair of nodes, we want to design a cost effective communications network which has the property that there is at least one communication route present between all the communicating node pairs, even in the case of node or link failure. We present the formulation of the problem and present a solution technique based on a constraint addition approach. We decompose the problem into smaller problems that are computationally not difficult to solve. We use the solutions of these smaller problems to generate new constraints that are added to the overall design problem. This iterative procedure is able to solve the survivable network design problem very efficiently. Extensive computational results show the effectiveness of our solution procedure.
International Journal of Man-Machine Studies, 1992
Abstract Decision support systems have traditionally been discussed within the context of individ... more Abstract Decision support systems have traditionally been discussed within the context of individual or group decision making. In this paper we study decision support systems from an organizational perspective. We propose a framework for designing an organizational ...
International Journal of Information Technology & Decision Making, 2002
In today's virtual organizations, the type of communication mode that individuals use to inte... more In today's virtual organizations, the type of communication mode that individuals use to interact with others may influence their decision outcomes and the information they exchange with others. The information that the individuals exchange is often influenced by their incentive structures, the type of communication mode, and the nature of the authority structure in their group. This paper reports the results of a set of experiments in which the groups work on a mixed-motive negotiation task under different types of incentive structures, authority structures, and communication modes. The experimental study consists of a 2 × 2 × 2 factorial design. The results suggest that proper design of incentive structures and embedding these incentives into Group Decision Support System (GDSS) features is critical to the successful utilization of GDSS for virtual groups engaged in a mixed-motive negotiation task.
We consider the problem of locating uncapacitated facilities among a set of potential sites to mi... more We consider the problem of locating uncapacitated facilities among a set of potential sites to minimize cost of serving a number of demand points each requiring service from two different facilities. This problem has many potential applications. One such application is location of emergency service facilities where it is desirable to have a primary and back-up service facility wthin a certain distance from every district An efficient solution procedure is developed. This procedure is tested on a number of problems and computational results are reported. It is compared to a state of the art commercial linear/integer programming package and found to be around two orders of magnitude faster than this package. It is also compared to a state of the art special purpose agorithm for the simple uncapacitated facility location problem to investigate the computational implications of introducing secondary service requirements. The model is used to illustrate the effect of considering secondary service on the spatia...
... 401-411 401 North-Holland An integer programming model for the allocation of databases in a d... more ... 401-411 401 North-Holland An integer programming model for the allocation of databases in a distributed computer system Hasan PIRKUL Academic ... Solving this instance of Problem-IP is equivalent to solving the following knapsack prob-lem: Max Y&#x27;~ CilXil, iEl subject to p,xn ...
ABSTRACT Online auctions are a profitable, exciting, and dynamic part of electronic commerce, and... more ABSTRACT Online auctions are a profitable, exciting, and dynamic part of electronic commerce, and behave in ways, which do not match classical auction theory. This paper models an online auction in terms of a Markov chain on a state space defined by the current ...
... Hasan Pirkul and Vaidyanathan Nagarajan College of Business, The Ohio State University, Cohfm... more ... Hasan Pirkul and Vaidyanathan Nagarajan College of Business, The Ohio State University, Cohfmbus, OH 43210, USA ... concentrator location problem [26,34] where concen-trators do not have to be directly connected to the central site through a dedicated line (&amp;quot;star&amp;quot; topology). ...
... Deception is a deliberate falsification of information by a communicator, with the intent bei... more ... Deception is a deliberate falsification of information by a communicator, with the intent being to mislead the ... to be more uncertain and vague, more nondominated and reticent, show more negative influence, display more ... Each group consisted of three members and a leader. ...
... are treated separately. Mahmoud and Riordan [9], Lanning and Leonard [10] and Irani and Khabb... more ... are treated separately. Mahmoud and Riordan [9], Lanning and Leonard [10] and Irani and Khabbaz [11] considered the design of the telecommunication network together with the allocation of databases. There have also been ...
[1989] Proceedings of the Twenty-Second Annual Hawaii International Conference on System Sciences. Volume III: Decision Support and Knowledge Based Systems Track
A group decision support system should ideally be tailored to the needs of the group on a continu... more A group decision support system should ideally be tailored to the needs of the group on a continuous basis. Since most groups are formed and disbanded frequently, it is usually not feasible to create a group decision support system tailored to meet the specific needs of each group unless there already exists an infrastructure within the organization's computer system to do so. The authors propose such an infrastructure, namely a networked knowledge-based system that can be dynamically configured and reconfigured. The proposed framework allows group members to exchange data and information outside of meetings, resulting in more productive meetings. It can also minimize the necessity for interaction between group members outside of meetings, thus allowing them to utilize their time better.<<ETX>>
In this paper we study the problem of survivable network design (SND). The problem can be stated ... more In this paper we study the problem of survivable network design (SND). The problem can be stated as follows: Given a set of nodes, possible edges and costs for each edge and the number of permitted node or edge failures between each pair of nodes, we want to design a cost effective communications network which has the property that there is at least one communication route present between all the communicating node pairs, even in the case of node or link failure. We present the formulation of the problem and present a solution technique based on a constraint addition approach. We decompose the problem into smaller problems that are computationally not difficult to solve. We use the solutions of these smaller problems to generate new constraints that are added to the overall design problem. This iterative procedure is able to solve the survivable network design problem very efficiently. Extensive computational results show the effectiveness of our solution procedure.
International Journal of Man-Machine Studies, 1992
Abstract Decision support systems have traditionally been discussed within the context of individ... more Abstract Decision support systems have traditionally been discussed within the context of individual or group decision making. In this paper we study decision support systems from an organizational perspective. We propose a framework for designing an organizational ...
International Journal of Information Technology & Decision Making, 2002
In today's virtual organizations, the type of communication mode that individuals use to inte... more In today's virtual organizations, the type of communication mode that individuals use to interact with others may influence their decision outcomes and the information they exchange with others. The information that the individuals exchange is often influenced by their incentive structures, the type of communication mode, and the nature of the authority structure in their group. This paper reports the results of a set of experiments in which the groups work on a mixed-motive negotiation task under different types of incentive structures, authority structures, and communication modes. The experimental study consists of a 2 × 2 × 2 factorial design. The results suggest that proper design of incentive structures and embedding these incentives into Group Decision Support System (GDSS) features is critical to the successful utilization of GDSS for virtual groups engaged in a mixed-motive negotiation task.
We consider the problem of locating uncapacitated facilities among a set of potential sites to mi... more We consider the problem of locating uncapacitated facilities among a set of potential sites to minimize cost of serving a number of demand points each requiring service from two different facilities. This problem has many potential applications. One such application is location of emergency service facilities where it is desirable to have a primary and back-up service facility wthin a certain distance from every district An efficient solution procedure is developed. This procedure is tested on a number of problems and computational results are reported. It is compared to a state of the art commercial linear/integer programming package and found to be around two orders of magnitude faster than this package. It is also compared to a state of the art special purpose agorithm for the simple uncapacitated facility location problem to investigate the computational implications of introducing secondary service requirements. The model is used to illustrate the effect of considering secondary service on the spatia...
... 401-411 401 North-Holland An integer programming model for the allocation of databases in a d... more ... 401-411 401 North-Holland An integer programming model for the allocation of databases in a distributed computer system Hasan PIRKUL Academic ... Solving this instance of Problem-IP is equivalent to solving the following knapsack prob-lem: Max Y&#x27;~ CilXil, iEl subject to p,xn ...
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