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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

An Artificial Environment for Simulating Corporate Strategy

Bauer, Roland, Schwingenschlögl, Albert, Vetschera, Rudolf January 2002 (has links) (PDF)
The paper introduces an environment for agent-based simulation of corporate strategy. The environment consists of specifications for internal and external factors like cost or market structures that influence corporate strategy, as well as a framework for operational and strategic decisions made by the agents. The entire system is implemented in MATLAB and will be used in a first set of experiments to test the fit of diversification and core competence-based strategies to various types of environment. (author's abstract) / Series: Working Papers SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
2

Intelligent energy management agent for a parallel hybrid vehicle

Won, Jong-Seob 30 September 2004 (has links)
This dissertation proposes an Intelligent Energy Management Agent (IEMA) for parallel hybrid vehicles. A key concept adopted in the development of an IEMA is based on the premise that driving environment would affect fuel consumption and pollutant emissions, as well as the operating modes of the vehicle and the driver behavior do. IEMA incorporates a driving situation identification component whose role is to assess the driving environment, the driving style of the driver, and the operating mode (and trend) of the vehicle using long and short term statistical features of the drive cycle. This information is subsequently used by the torque distribution and charge sustenance components of IEMA to determine the power split strategy, which is shown to lead to improved fuel economy and reduced emissions.
3

Alternative Supply Chain Production-Sales Policies for New Product Diffusion: An Agent-Based Modeling and Simulation Approach

Amini, Mehdi, Wakolbinger, Tina, Racer, Michael, Nejad, Mohammed G. January 2012 (has links) (PDF)
Applying Agent-Based Modeling and Simulation (ABMS) methodology, this paper analyzes the impact of alternative production-sales policies on the diffusion of a new product and the generated NPV of profit. The key features of the ABMS model, that captures the marketplace as a complex adaptive system, are: (i) supply chain capacity is constrained; (ii) consumers' new product adoption decisions are influenced by marketing activities as well as positive and negative word of mouth (WOM) between consumers; (iii) interactions among consumers taking place in the context of their social network are captured at the individual level; and (iv) the new product adoption process is adaptive. Conducting over 1 million simulation experiments, we determined the "best" productionsales policies under various parameter combinations based on the NPV of profit generated over the diffusion process. The key findings are as follows: (1) on average, the build-up policy with delayed marketing is the preferred policy in the case of only positive WOM as well as the case of positive and negative WOM. This policy provides the highest expected NPV of profit on average and it also performs very smoothly with respect to changes in build-up periods. (2) It is critical to consider the significant impact of negative word-of-mouth on the outcomes of alternative production-sales policies. Neglecting the effect of negative word-of-mouth can lead to poor policy recommendations, incorrect conclusions concerning the impact of operational parameters on the policy choice, and suboptimal choice of build-up periods. (authors' abstract)
4

Three Essays on Complex Contractual Networks of Farmers

Jun, Min Su 30 December 2016 (has links)
No description available.
5

Modelování oceňování projektů / Modeling projects work

Sekerka, Radko January 2009 (has links)
In this thesis we present model of the human work process on projects using multi-agent model. Within the project management plan is carried out comparisons with the fact not only in the context of subsequent checks, but also in the course of the project. One of the most item is cost of human resources. To increase efficiency and control over the actual cost to introducing a range of organizations link the accounting system to a system of reporting work. Such a system registry of the work is not only complex, but also demanding in terms of managing the time gap between the creation of estimates and their own work. In general, there may be several variants of complications such as delay work on the project because of inaccurate estimates of job performance and therefore insufficient funds in the accounts sections and stages of the project. The aim of this work is to find the characteristics of such projects for which this system work. In the first part we are addressed basic theoretical assumptions for modeling work in the field of project management and multi-agent modeling. Next part relates to the creation of multi-agent model, including detailed characteristics and verification. At the end of this research are described a several experiments with the model and analysis results.
6

Les fonctions du syndic de copropriété / The function of condominium manager

Lagraulet, Pierre-Edouard 14 November 2018 (has links)
Le droit de la copropriété est devenu, comme le soulignait Monsieur le Professeur Ch. ATIAS, « un maquis inextricable, un dédale complexe où l’on se perd d’autant plus aisément que l’harmonisation des dispositions est souvent délicate ». La loi relative à la solidarité et au renouvellement urbains (SRU), la loi pour l’Accès au Logement et un Urbanisme Rénové (ALUR) auxquelles sont venus s’ajouter la loi pour la croissance, l'activité et l'égalité des chances économiques, la loi relative à la transition énergétique pour la croissance verte, les décrets relatifs aux conditions d'exercice des activités relatives à certaines opérations portant sur les immeubles et les fonds de commerce ainsi que le décret relatif aux procédures judiciaires applicables aux copropriétés en difficulté, n’ont pas amélioré la situation dans laquelle se trouve le syndic de copropriété. Outre les questions de droit transitoire il s’agit surtout des difficultés inchangées à déterminer le statut du syndic, la nature des fonctions qui en découlent et la responsabilité qui en résulte, compte tenu des modifications considérables apportées par ces réformes. Nous proposons donc, à travers cette étude, d'envisager l'évolution de la fonction du syndic de copropriété, et du syndicat qu’il représente, afin d'identifier les difficultés soulevées par les nombreuses réformes pour, enfin, s'interroger sur la pertinence du système mis en place par le législateur. / The condominium legislation rules have become – as Professor Ch. ATIAS declares - « an inextricable bush, a very complex tangle where you may easily get lost as the harmonization of legal measures is often delicate ». The law relating to Urban Solidarity and Renewal (i.e. SRU law), the law relating to Housing Access and Renovated Urban Planning (i.e. ALUR law) to which was added the law for growth, activity and equality of economic opportunity, plus the law for energy transition to green growth, plus the decrees relating to the conditions of implementing activities concerning operations about buildings and commercial properties as well as the decree relating to legal procedures concerning co-ownerships having difficulties, did not improve the situation in which the co-ownership management stands. Apart from matters about transitional law, it mainly refers to unchanged difficulties to define the statute of management agent, the nature of the functions and responsibilities that follow considering the numerous modifications brought by those reforms. Thus, by this study, we suggest to consider the evolution of the function of condominium manager and the nature of the condominium it represents in order to identify the difficulties brought up by the too many reforms and finally question about the relevance of the system implemented by the legislator.
7

An Efficient Network Management System using Agents for MANETs

Channappagoudar, Mallikarjun B January 2017 (has links) (PDF)
Network management plays a vital role to keep a network and its application work e ciently. The network management in MANETs is a crucial and the challenging task, as these networks are characterized by dynamic environment and the scarcity of resources. There are various existing approaches for network management in MANETs. The Ad hoc Network Management Protocol (ANMP) has been one of the rst e orts and introduced an SNMP-based solution for MANETs. An alternative SNMP-based solu-tion is proposed by GUERRILLA Management Architecture (GMA). Due to self-organizing characteristic feature of MANETs, the management task has to be distributed. Policy-based network management relatively o ers this feature, by executing and applying policies pre-viously de ned by network manager. Otherwise, the complexity of realization and control becomes di cult Most of the works address the current status of the MANET to take the network man-agement decisions. Currently, MANETs addresses the dynamic and intelligent decisions by considering the present situation and all related history information of nodes into consid-eration. In this connection we have proposed a network management system using agents (NMSA) for MANETs, resolving major issues like, node monitoring, location management, resource management and QoS management. Solutions to these issues are discussed as inde-pendent protocols, and are nally combined into a single network management system, i.e., NMSA. Agents are autonomous, problem-solving computational entities capable of performing e ective operation in dynamic environments. Agents have cooperation, intelligence, and mobility characteristics as advantages. The agent platforms provide the di erent services to agents, like execution, mobility, communication, security, tracking, persistence and directory etc. The platform execution environment allows the agents to run, and mobility service allows them to travel among the di erent execution environments. The entire management task will be delegated to agents, which then executes the management logic in a distributed and autonomous fashion. In our work we used the static and mobile agents to nd some solutions to the management issues in a MANET. We have proposed a node monitoring protocol for MANETs, which uses both static agent (SA) and mobile agents (MA), to monitor the nodes status in the network. It monitors the gradational energy loss, bu er, bandwidth, and the mobility of nodes running with low to high load of mobile applications. Protocol assumes the MANET is divided into zones and sectors. The functioning of the protocol is divided into two segments, The NMP main segment, which runs at the chosen resource rich node (RRN) at the center of a MANET, makes use of SA which resides at same RRN, and the NMP subsegment which runs in the migrated MAs at the other nodes. Initially SA creates MAs and dispatches one MA to each zone, in order to monitor health conditions and mobility of nodes of the network. MAs carrying NMP subsegment migrates into the sector of a respective zone, and monitors the resources such as bandwidth, bu er, energy level and mobility of nodes. After collecting the nodes information and before moving to next sector they transfer collected information to SA respectively. SA in turn coordinates with other modules to analyze the nodes status information. We have validated the protocol by performing the conformance testing of the proposed node monitoring protocol (NMP) for MANETs. We used SDL to obtain MSCs, that repre-sents the scenario descriptions by sequence diagrams, which in turn generate test cases and test sequences. Then TTCN-3 is used to execute the test cases with respect to generated test sequences to know the conformance of protocol against the given speci cation. We have proposed a location management protocol for locating the nodes of a MANET, to maintain uninterrupted high-quality service for distributed applications by intelligently anticipating the change of location of its nodes by chosen neighborhood nodes. The LMP main segment of the protocol, which runs at the chosen RRN located at the center of a MANET, uses SA to coordinate with other modules and MA to predict the nodes with abrupt movement, and does the replacement with the chosen nodes nearby which have less mobility. We have proposed a resource management protocol for MANETs, The protocol makes use of SA and MA for fair allocation of resources among the nodes of a MANET. The RMP main segment of the protocol, which runs at the chosen RRN located at the center of a MANET, uses SA to coordinate with other modules and MA to allocate the resources among the nodes running di erent applications based on priority. The protocol does the distribution and parallelism of message propagation (mobile agent with information) in an e cient way in order to minimize the number of message passing with reduction in usage of network resources and improving the scalability of the network. We have proposed a QoS management protocol for MANETs, The QMP main segment of the protocol, which runs at the chosen RRN located at the center of a MANET, uses SA to coordinate with other modules and MA to allocate the resources among the nodes running di erent applications based on priority over QoS. Later, to reallocate the resources among the priority applications based on negotiation and renegotiation for varying QoS requirements. The performance testing of the protocol is carried out using TTCN-3. The generated test cases for the de ned QoS requirements are executed with TTCN-3, for testing of the associated QoS parameters, which leads to performance testing of proposed QoS management protocol for MANETs. We have combined the developed independent protocols for node monitoring, location management, resource management, and QoS management, into one single network management system called Network Management System using Agents (NMSA) for MANETs and tested in di erent environments. We have implemented NMSA on Java Agent development environment (JADE) Platform. Our developed network management system is a distributed system. It is basically divided into two parts, the Network Management Main Segment and other is Network Management Subsegment. A resource rich node (RRN) which is chosen at the center of a MANET where the Main segment of NMSA is located, and it controls the management activities. The other mobile nodes in the network will run MA which has the subsegments of NMSA. The network management system, i.e., the developed NMSA, has Network manage-ment main (NMSA main), Zones and sector segregation scheme, NMP, LMP, RMP, QMP main segments at the RRN along with SA deployed. The migrated MA at mobile node has subsegments of NMP, LMP, RMP, and QMP respectively. NMSA uses two databases, namely, Zones and sectors database and Node history database. Implementation of the proposed work is carried out in a con ned environment with, JDK and JADE installed on network nodes. The launched platform will have AMS and DF automatically generated along with MTP for exchange of message over the channel. Since only one JVM, which is installed, will executes on many hosts in order to provide the containers for agents on those hosts. It is the environment which o ered, for execution of agents. Many agents can be executed in parallel. The main container, is the one which has AMS and DF, and RMI registry are part of JADE environment which o ers complete run time environment for execution of agents. The distribution of the platform on many containers of nodes is shown in Fig. 1. The NMSA is based on Linux platform which provides distributed environment, and the container of JADE could run on various platforms. JAVA is the language used for code development. A middle layer, i.e., JDBC (java database connection) with SQL provides connectivity to the database and the application. The results of experiments suggest that the proposed protocols are e ective and will bring, dynamism and adaptiveness to the applied system and also reduction in terms network overhead (less bandwidth consumption) and response time.

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