In this research, a backpropagation neural network and latent semantic analysis were used to assess the quality of Thai-language essays written by high school students in the subject matter of historical royal Thai literatures. Forty essays written in response to a question were each evaluated by high school teachers and assigned a human score. In the first experiment, we used raw term frequency vectors of the essays and their corresponding human scores to train the neural network and obtain the machine scores. In the second experiment, we pre-processed the raw term frequency vectors using latent semantic analysis technique prior to feeding them to the neural network. The experimental results show that the addition of latent semantic analysis technique improves scoring performance
{"title":"Automatic Thai-Language Essay Scoring Using Neural Network and Latent Semantic Analysis","authors":"Chanunya Loraksa, R. Peachavanish","doi":"10.1109/AMS.2007.19","DOIUrl":"https://doi.org/10.1109/AMS.2007.19","url":null,"abstract":"In this research, a backpropagation neural network and latent semantic analysis were used to assess the quality of Thai-language essays written by high school students in the subject matter of historical royal Thai literatures. Forty essays written in response to a question were each evaluated by high school teachers and assigned a human score. In the first experiment, we used raw term frequency vectors of the essays and their corresponding human scores to train the neural network and obtain the machine scores. In the second experiment, we pre-processed the raw term frequency vectors using latent semantic analysis technique prior to feeding them to the neural network. The experimental results show that the addition of latent semantic analysis technique improves scoring performance","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127546286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The paper deals with two examples, which show the efficiency of OO modelling approach in control engineering. The first example - an optimization of three tank hydraulic control system shows the efficiency of the OO modelling approach in control engineering education. A very efficient environment is the combination of Matlab Simulink and a Modelica based OO environment Dymola. Two different control strategies - PID and cascade control are demonstrated. The second example shows the efficiency of OO modelling approach in an industrial application. DYMOLA-Modelica was efficiently used for studying a pendulum system in a stone wool production technology in a Slovenian company. In this system linear (horizontal) movement of a bottom edge of the pendulum system is a very important technological feature in forming the secondary wool layer. The simulation results showed that it is possible to achieve more appropriate movements with regard to position and velocity
{"title":"Control Engineering: New Trends with OO Modelling Approach","authors":"B. Zupančič, R. Karba","doi":"10.1109/AMS.2007.30","DOIUrl":"https://doi.org/10.1109/AMS.2007.30","url":null,"abstract":"The paper deals with two examples, which show the efficiency of OO modelling approach in control engineering. The first example - an optimization of three tank hydraulic control system shows the efficiency of the OO modelling approach in control engineering education. A very efficient environment is the combination of Matlab Simulink and a Modelica based OO environment Dymola. Two different control strategies - PID and cascade control are demonstrated. The second example shows the efficiency of OO modelling approach in an industrial application. DYMOLA-Modelica was efficiently used for studying a pendulum system in a stone wool production technology in a Slovenian company. In this system linear (horizontal) movement of a bottom edge of the pendulum system is a very important technological feature in forming the secondary wool layer. The simulation results showed that it is possible to achieve more appropriate movements with regard to position and velocity","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126301989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents the idea of modeling transparent network simulations to realize the communication system by using interactive network simulation technology. An interactive network simulation can be built based on high level architecture (HLA). With the "software bus" run time infrastructure (RTI), users could operate the discrete-event-driven simulators while simulation is running. In these cases, users may not even distinguish themselves in a simulation environment. With HLA, we could conquer the shortcoming that the traditional discrete-event-driven simulation software could only simulate network models with fixed or simple random parameters, and therefore maximize the similarity between the simulation and the real networks
{"title":"HLA-Based Network Simulation for Interactive Communication System","authors":"Fan Zhang, Benxiong Huang","doi":"10.1109/AMS.2007.52","DOIUrl":"https://doi.org/10.1109/AMS.2007.52","url":null,"abstract":"This paper presents the idea of modeling transparent network simulations to realize the communication system by using interactive network simulation technology. An interactive network simulation can be built based on high level architecture (HLA). With the \"software bus\" run time infrastructure (RTI), users could operate the discrete-event-driven simulators while simulation is running. In these cases, users may not even distinguish themselves in a simulation environment. With HLA, we could conquer the shortcoming that the traditional discrete-event-driven simulation software could only simulate network models with fixed or simple random parameters, and therefore maximize the similarity between the simulation and the real networks","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125316652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Susanto, Neneng Tintin Rosmiyanti, P. Vasant, A. Bhattacharya
This paper focuses on optimizing product-mix problem using real-world data of a food processing industry. The extensively used LP model has been remodeled using fuzzy sets and applied to the real-world problem. The developed LP model is able to consider the fuzziness in the parameters and to tackle the presence of multiple objective functions. The degree of satisfaction of the product-mix decision-maker in terms of (i) the total profit obtained and (ii) the waste resulted, is at least 70%, which is encouraging
{"title":"Fuzzy Multi-object Linear Programming Application in Product-Mix Decision-Making","authors":"S. Susanto, Neneng Tintin Rosmiyanti, P. Vasant, A. Bhattacharya","doi":"10.1109/AMS.2007.48","DOIUrl":"https://doi.org/10.1109/AMS.2007.48","url":null,"abstract":"This paper focuses on optimizing product-mix problem using real-world data of a food processing industry. The extensively used LP model has been remodeled using fuzzy sets and applied to the real-world problem. The developed LP model is able to consider the fuzziness in the parameters and to tackle the presence of multiple objective functions. The degree of satisfaction of the product-mix decision-maker in terms of (i) the total profit obtained and (ii) the waste resulted, is at least 70%, which is encouraging","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117134249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Umeo, Takuya Yamawaki, Naoki Shimizu, Hiroki Uchino
In recent years cellular automata (CA) have been establishing increasing interests in the study of modeling and simulating non-linear phenomena occurring in biology, chemistry, ecology, economy, geology, mechanical engineering, medicine, physics, sociology, public traffic, etc. Cellular automata are considered to be a nice model of complex systems in which an infinite one-dimensional array of finite state machines (cells) updates itself in synchronous manner according to a uniform local rule. The firing squad synchronization problem on cellular automata has been studied extensively for more than forty years, and a rich variety of synchronization algorithms have been proposed. In the present paper, we propose a completely new optimum-time synchronization algorithm for large-scale-of two-dimensional cellular automata. The algorithm can synchronize any two-dimensional array of size m times n in optimum m + n + max(m, n) - 3 steps. A simulation result is also given
近年来，元胞自动机(CA)在生物学、化学、生态学、经济学、地质学、机械工程、医学、物理学、社会学、公共交通等领域对非线性现象的建模和模拟的研究日益引起人们的兴趣。元胞自动机被认为是一种很好的复杂系统模型，在这种模型中，无限的一维有限状态机(细胞)按照统一的局部规则以同步的方式自我更新。元胞自动机上的行刑队同步问题已经得到了四十多年的广泛研究，并提出了丰富多样的同步算法。本文提出了一种全新的大规模二维元胞自动机的最优时间同步算法。该算法可以同步任何大小为m * n的二维数组，最优速度为m + n + max(m, n) - 3步。并给出了仿真结果
{"title":"Modeling and Simulation of Global Synchronization Processes for Large-Scale-of Two-Dimensional Cellular Arrays","authors":"H. Umeo, Takuya Yamawaki, Naoki Shimizu, Hiroki Uchino","doi":"10.1109/AMS.2007.60","DOIUrl":"https://doi.org/10.1109/AMS.2007.60","url":null,"abstract":"In recent years cellular automata (CA) have been establishing increasing interests in the study of modeling and simulating non-linear phenomena occurring in biology, chemistry, ecology, economy, geology, mechanical engineering, medicine, physics, sociology, public traffic, etc. Cellular automata are considered to be a nice model of complex systems in which an infinite one-dimensional array of finite state machines (cells) updates itself in synchronous manner according to a uniform local rule. The firing squad synchronization problem on cellular automata has been studied extensively for more than forty years, and a rich variety of synchronization algorithms have been proposed. In the present paper, we propose a completely new optimum-time synchronization algorithm for large-scale-of two-dimensional cellular automata. The algorithm can synchronize any two-dimensional array of size m times n in optimum m + n + max(m, n) - 3 steps. A simulation result is also given","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116870816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Kennedy, G. Theodoropoulos, Edward Ferrari, Peter Lee, C. Skelcher
Representation and interpretation of simulation semantic content is a challenging problem at the heart of issues such as simulation composability and symbiotic simulation. This paper introduces an automated approach to dynamic online interpretation of simulations using AI techniques. The approach is described in the context of agent-based social simulations
{"title":"Towards an Automated Approach to Dynamic Interpretation of Simulations","authors":"C. Kennedy, G. Theodoropoulos, Edward Ferrari, Peter Lee, C. Skelcher","doi":"10.1109/AMS.2007.105","DOIUrl":"https://doi.org/10.1109/AMS.2007.105","url":null,"abstract":"Representation and interpretation of simulation semantic content is a challenging problem at the heart of issues such as simulation composability and symbiotic simulation. This paper introduces an automated approach to dynamic online interpretation of simulations using AI techniques. The approach is described in the context of agent-based social simulations","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124020276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper emphasis is on the importance of simulation techniques in the field of digital image processing. Simulations are carried out for implementation of various basic image enhancement techniques on MATLAB in spatial domain as well as the frequency domain. Through this simulation, it is concluded that the frequency domain analysis is easier to implement as compared to spatial domain and also it is concluded that one can understand the complex procedures of image processing provided he/she is able to analyze the results and compare it with the theoretical results mentioned in various books
{"title":"Simulation of Image Enhancement Techniques Using Matlab","authors":"A. Bansal, R. Bajpai, J. Saini","doi":"10.1109/AMS.2007.92","DOIUrl":"https://doi.org/10.1109/AMS.2007.92","url":null,"abstract":"This paper emphasis is on the importance of simulation techniques in the field of digital image processing. Simulations are carried out for implementation of various basic image enhancement techniques on MATLAB in spatial domain as well as the frequency domain. Through this simulation, it is concluded that the frequency domain analysis is easier to implement as compared to spatial domain and also it is concluded that one can understand the complex procedures of image processing provided he/she is able to analyze the results and compare it with the theoretical results mentioned in various books","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124416770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H.264/AVC exploits temporal and spatial redundancies to obtain higher coding gain. This comes with a cost of higher complexity encoder and higher computational time, which makes it difficult for real-time applications. In this paper, we present a fast intra-prediction mode selection method for H.264/AVC based on local edge information. Prior to intra prediction process, edge vectors of every pixel in a 4x4 block are totaled up to determine the edge direction. Based on the edge direction information, one directional mode is chosen and compared with the DC mode to choose the best mode with least rate distortion cost. Experimental results show that the proposed method reduces the computation complexity while it gives an almost similar visual quality of the reconstructed frame as compared to the one obtained by using exhaustive prediction method. The proposed method also outperforms Feng Pan's method (2005) in computational time and number of bits generated
{"title":"Edge Vector Based Mode Decision for H.264/AVC Intra Prediction","authors":"C. Lim, Kim-Han Thung, P. Raveendran","doi":"10.1109/AMS.2007.34","DOIUrl":"https://doi.org/10.1109/AMS.2007.34","url":null,"abstract":"H.264/AVC exploits temporal and spatial redundancies to obtain higher coding gain. This comes with a cost of higher complexity encoder and higher computational time, which makes it difficult for real-time applications. In this paper, we present a fast intra-prediction mode selection method for H.264/AVC based on local edge information. Prior to intra prediction process, edge vectors of every pixel in a 4x4 block are totaled up to determine the edge direction. Based on the edge direction information, one directional mode is chosen and compared with the DC mode to choose the best mode with least rate distortion cost. Experimental results show that the proposed method reduces the computation complexity while it gives an almost similar visual quality of the reconstructed frame as compared to the one obtained by using exhaustive prediction method. The proposed method also outperforms Feng Pan's method (2005) in computational time and number of bits generated","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132431656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper analyzes MPLS signaling protocols for traffic engineering, shows the capability of providing traffic engineering in MPLS compared to the conventional routing protocol, and explains the MPLS LSR operations based on the basic LSR functionality of classification, queue, and scheduling. CR-LDP, RSVP and RSVP-TE are summarized and analyzed based on how to set up LSP for TE with help of protocol messages. In addition, the comparisons of CR-LDP, RSVP, and RSVP-TE are conducted based on the aspects of LSP reliability and LSP adaptability. A performance metric such as throughput is adopted in order to measure the capability of MPLS traffic engineering based on computer-based simulation
{"title":"Analysis of MPLS Signaling Protocols and Traffic Dissemination in OSPF and MPLS","authors":"Sang-Chul Kim, Jong‐Moon Chung","doi":"10.1109/AMS.2007.16","DOIUrl":"https://doi.org/10.1109/AMS.2007.16","url":null,"abstract":"This paper analyzes MPLS signaling protocols for traffic engineering, shows the capability of providing traffic engineering in MPLS compared to the conventional routing protocol, and explains the MPLS LSR operations based on the basic LSR functionality of classification, queue, and scheduling. CR-LDP, RSVP and RSVP-TE are summarized and analyzed based on how to set up LSP for TE with help of protocol messages. In addition, the comparisons of CR-LDP, RSVP, and RSVP-TE are conducted based on the aspects of LSP reliability and LSP adaptability. A performance metric such as throughput is adopted in order to measure the capability of MPLS traffic engineering based on computer-based simulation","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134525500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Rigopoulos, J. Psarras, N. Karadimas, A. Orsoni
Decisions in today's demanding business environment often require participation of a group of decision makers. Although decision complexity increases by the number of the participating decision makers, in many cases it is necessary to combine experts' knowledge to minimize risk. Banking sector is a domain where decision makers face decision problems and need appropriate methodologies and tools to support them. However, complexity in tools and methodologies directs them to follow less structured methodologies, mostly heuristic based. Considering the above issues, we present our approach towards a group decision support system, which utilizes multicirteria analysis and multiagent modeling, and is oriented towards sorting decisions in the financial sector
{"title":"Facilitating Group Decisions through Multicriteria Analysis and Agent Based Modeling","authors":"G. Rigopoulos, J. Psarras, N. Karadimas, A. Orsoni","doi":"10.1109/AMS.2007.40","DOIUrl":"https://doi.org/10.1109/AMS.2007.40","url":null,"abstract":"Decisions in today's demanding business environment often require participation of a group of decision makers. Although decision complexity increases by the number of the participating decision makers, in many cases it is necessary to combine experts' knowledge to minimize risk. Banking sector is a domain where decision makers face decision problems and need appropriate methodologies and tools to support them. However, complexity in tools and methodologies directs them to follow less structured methodologies, mostly heuristic based. Considering the above issues, we present our approach towards a group decision support system, which utilizes multicirteria analysis and multiagent modeling, and is oriented towards sorting decisions in the financial sector","PeriodicalId":198751,"journal":{"name":"First Asia International Conference on Modelling & Simulation (AMS'07)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132129100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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