agent based discrete event models

... distribution of event- related information Chapter – Agent- based concept Software agents for event management in supply networks Agent- oriented software engineering Agent society concept for event management ... apply the agent- based event management concept to a realistic environment Chapter – Event management in supply networks Problem analysis regarding event management Requirements of an event management ... agent societies It was my objective in this book to provide a thorough analysis of the event management problem domain from which to develop a generic agent- based approach to Supply Network Event...

Ngày tải lên: 03/06/2014, 01:14

... fibrosis by using Gd -based intravasal contrast agents are suggestive.[14] In order to meet these higher requirements for intracellular magnetic resonance tomography (MRT) contrast agents, the development ... solvents were of reagent grade and used without further purification Amino acids, derivatives and coupling agents were purchased from Merck Bioscience, Germany Cleavage reagents were from Fluka-Sigma-Aldrich, ... gadolinium -based extracellular contrast agents and nephrogenic systemic fibrosis J Magn Reson Imaging 2007; 26: 1190-7 Anderson SA, Lee KK, Frank JA Gadolinium-Fullerenol as a Paramagnetic Contrast Agent...

Ngày tải lên: 26/10/2012, 09:07

... Transfer Functions and ARMA Models 9.2.3 Realization Theory 9.2.4 More on Minimal Realizations 9.3 Control of Discrete Event Systems ... within the setting of Petri networks developed in Chapter 2: stochastic event graphs coincide with the class of discrete event systems that have a representation as a max-plus linear system in ... stochastic event graphs, several examples of such systems are provided ranging from manufacturing models (e.g assembly/disassembly queues, also called fork-join queues, jobshop and flowshop models, ...

Ngày tải lên: 19/02/2014, 03:20

... sequence of events is given in Table Dependencies among events is shown in the directed graph of Figure 2; a directed line from event el to event e2 denotes that event e2 depends directly on event ... terminal may be thought of as a pp In tradi- Discrete- Event Simulation l 43 tional simulation terminology, each pp is described by a set of events and each event has an associated time of occurrence ... time) We further restrict ourselves to discrete- event simulations; we assume that events in the physical system-in our case, message transmissions-happen at discrete points in time 1.1.1 Traditional...

Ngày tải lên: 19/02/2014, 18:20

... generate discrete random variates in the next section Discrete- Event Simulation: A First Course Section 6.1: Discrete Random Variables 8/ 27 Mean and Standard Deviation The mean µ of the discrete ... winnings are E [Y ] = E [2X ] = 2E [X ] = Discrete- Event Simulation: A First Course Section 6.1: Discrete Random Variables 16/ 27 Discrete Random Variable Models A random variable is an abstract, ... +· · · ) = Discrete- Event Simulation: A First Course Section 6.1: Discrete Random Variables 4/ 27 Cumulative Distribution Function The cumulative distribution function(cdf) of the discrete random...

Ngày tải lên: 07/03/2014, 17:20

... Mesolithic foragers Agent- based simulation can also, in principle, accommodate models that invoke heterogeneity among agents, or which drive social change through shifting coalitions of agents, argued ... Together Again based Action in such models takes place through agents, which are processes, however simple, that collect information about their environment, make decisions about actions based on that ... it—they're fun Despite our emphasis on agent- based modeling, we not mean to imply that it should displace, or is always superior to, systems-level models based on, for example, differential equations...

Ngày tải lên: 14/03/2014, 21:20

... Vocabulary Size 10000 100000 Figure 4: A comparison of event models for different vocabulary sizes on the WebKB data set Here the two event models achieve nearly equivalent accuracies, but the multi-variate ... the multinomial event model showed little difference in classification accuracy The results reported in this paper use the feature selection event model that corresponds to the event model used ... multinomial We will also investigate event models that normalize the word occurrence counts in a document by document length, and work with more complex models that model document length explicitly...

Ngày tải lên: 16/03/2014, 19:20

... prototype version of a generic SIP -based event notification system The Columbia SIP user agent, sipc, and the SIP proxy server, sipd, are being extended to handle event notifications using XML messages ... SIP- BASED M EDICAL E VENT M ONITORING S YSTEM There are many possible ways of creating event notification applications Within the medical field, SIP can be used for reliable delivery of an event ... filtering specific events as well as requesting particular alert methods by the notification server Filtering events using XML is now being discussed within the IETF [13] The “Events” header in...

Ngày tải lên: 16/03/2014, 19:20

... effectiveness These results are compared with results from the agentbased models 2.2 Agent- based models We describe three agent- based models in this paper The ABM approach allows us to evaluate ... agent- based models may be constructed to serve as minimal realistic models of real-world complex adaptive systems However, the fact that we often cannot prove theorems about the agent- based models ... and behaviors of agents might influence ecological diversity and function A key challenge in modeling such multi -agent systems with agent- based models is providing confidence in the models results...

Ngày tải lên: 23/03/2014, 13:20

... Dependency language model Language models play a very important role for statistical machine translation (SMT) The standard Ngram based language model predicts the next word based on the N −1 immediate ... TYPE, h word, ch word > Table 1: DLM -based feature templates in which we add the DLM -based features in the decoding algorithm directly 4.1 Rescoring We add the DLM -based features into the decoding ... where DLM refers to adding the DLM -based features to the Baselines The parsers using the DLM -based features consistently outperformed the Baselines For the basic models (MST1/2), we obtained absolute...

Ngày tải lên: 23/03/2014, 14:20

... summarization approach based on event term clustering Section presents experiments and evaluations Finally, Section concludes the paper 2.1 Summarization Based on Event Term Clustering Event Term Graph ... graph -based and has been successfully applied in summarization Table lists the result of our implementation of PageRank based on event terms We then compare it with the results of the event term ... Clustering -based Summarization The experiments show that both assumptions are reasonable It is encouraging to find that our event term clustering -based approaches could outperform the PageRank-based...

Ngày tải lên: 23/03/2014, 18:20

... (Och, 2002) 5.3 Phrase -Based Error Model Features To use the phrase -based error model for spelling correction, we derive five features and integrate them into the ranker -based query speller system, ... Summary of spelling correction results phrase -based error models with a maximum bi-phrase length of # System Accuracy Precision Recall In phrase based error model, L is the maxi5 Phrase model ... derived challenge to any speller system that is based on a respectively from the language model and the dictionary error model models The error model is based on This paper extends the recent research...

Ngày tải lên: 30/03/2014, 21:20

... Multinomial Model The multinomial event model assumes that a document d i of length d i is generated by a sequence of I d7 word events, where the outcome of each event is a word from the vocabulary ... cost-sensitive measures Conclusions We performed experiments with two different statistical event models (a multi-variate Bernoulli Despite this, Naive Bayes can be an optimal classifier because ... Science, pages 4-15, Heidelberg Springer Andrew McCallum and Kamal Nigam 1998 A comparison of event models for Naive Bayes text classification In Proc AAAI-98 Workshop on Learning for Text Categorization,...

Ngày tải lên: 31/03/2014, 20:20

... verification and validation of agent- based models Chapter 4, Verification and Validation of Simulation Models, discusses validation and verification of simulation models The different approaches ... Fuzzy modelling Introduction to the M&S project Ethics Discrete, continuous and combined models Agent- based modelling Project realization based e.g., on prototyping life cycle Virtual Work and ... individual objects simulate a discrete event problem The chapter describes all simulation model objects, their attributes and methods Another important element of the discrete event simulator is the...

Ngày tải lên: 29/05/2014, 16:39

... getDestination() serializeAgent packStore moveAgent (agent) request(deployAgent) agree(deployAgent) obtainLibrary finished create done(deployAgent) AgentMoved AgentFinished remove Figure Agent Migration ... Container Master GISServer Container Slave Name Container Slave Name Topi c Agent Agent Agent Agent Agent ES Agent Agent Platform GIS Client Service Container Slave Name N Me s s a ging Container ... messages: agents and services Agents not run as stand-alone applications Instead, they are executed inside the agent containers, each agent in its own separate thread The schema of general agent...

Ngày tải lên: 03/06/2014, 02:06

... source node Last source node Positive reinforcement Mobile agent migrates toward event region Mobile agent migrates among source nodes Mobile agent migrates along reinforced path Intermediate source ... Recently, mobile agents have been proposed for efficient data dissemination in sensor networks In [1], the authors proposed mobile agent- based distributed sensor network (MADSN) for cluster -based sensor ... diffusion The combined framework is dubbed mobile agent- based directed diffusion (MADD) On top of DD, a gradient -based routing scheme is proposed for mobile agent to efficiently migrate from sink to source,...

Ngày tải lên: 22/06/2014, 23:20

... be determined Instead discrete Lagrange multipliers can be used [22] Fast discrete Lagrangian local searches have been developed [23, 24, 25] that can be used to solve this discrete constrained ... objective function Equations (17), (18), (19), and (20) prevent any discrete Lagrange multiplier from initially dominating the other discrete Lagrange multipliers The function g2 (h) yields integer ... constraints are satisfied, which prevents the growth of the discrete Lagrange multipliers, and when h is a feasible local minimizer of the objective function, which prevents changes to h These conditions...

Ngày tải lên: 23/06/2014, 00:20

... practical applications of agentbased technology Chapter demonstrates how agent- based technology can be applied to smart distribution grid operation It presents an agent- based architecture which ... is added to the agent s belief base, as well as the triggering event + is added to the agent s event queue Depending upon the contexts of the agent s plan library, the triggering event + may (or ... 15 15 Agent- BasedApplied to Smart Distributionto Smart Distribution Grid Operation Agent- Based System System Applied Grid Operation Fig 10 Distribution network under operation the agent- based...

Ngày tải lên: 26/06/2014, 23:20

... step Discrete event simulation [5] The difference between discrete event simulation and timebased simulation is twofold Firstly, the process being modeled is understood to advance through events ... process in time -based simulation In discrete event simulation, both cause and effects refer to events However, upon execution due to an event, a model may not generate an output event thus appearing ... comment the difference between time -based simulation and discrete event simulation Under time -based simulation, the duration of the timestep interval is determined based on the nature of the specific...

Ngày tải lên: 28/06/2014, 10:20

... practical applications of agentbased technology Chapter demonstrates how agent- based technology can be applied to smart distribution grid operation It presents an agent- based architecture which ... is added to the agent s belief base, as well as the triggering event + is added to the agent s event queue Depending upon the contexts of the agent s plan library, the triggering event + may (or ... 15 15 Agent- BasedApplied to Smart Distributionto Smart Distribution Grid Operation Agent- Based System System Applied Grid Operation Fig 10 Distribution network under operation the agent- based...

Ngày tải lên: 28/06/2014, 14:20