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2014 8th Asia Modelling Symposium最新文献

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Stability Analysis of High-Resolution Quantized Feedback Systems 高分辨率量化反馈系统的稳定性分析
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.18
Lim H. Lim, A. Loh
{"title":"Stability Analysis of High-Resolution Quantized Feedback Systems","authors":"Lim H. Lim, A. Loh","doi":"10.1109/AMS.2014.18","DOIUrl":"https://doi.org/10.1109/AMS.2014.18","url":null,"abstract":"In this paper, we study the stability of a high resolution quantized feedback system. It is well known that a quantized feedback system can be stabilised by increasing the resolution of the quantizer. However, limit cycles have also been found under certain conditions at high resolution. These necessary and sufficient conditions for the existence of limit cycles are examined. Solutions for the limit cycle period and switching instants obtained via the inverse-free Newton's method are used to assess the stability of the limit cycle under high resolution with the Poincaré map. A bound on the quantization resolution is identified for a stable limit cycle. Analytical results on the existence of limit cycles in first and second order systems are also presented.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122569308","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}
引用次数: 0
Precipitation Retrievals Employing GOES Imager Infrared Channels and AMSU MIT Precipitation Retrieval Products 利用GOES成像仪红外通道和AMSU MIT降水检索产品进行降水检索
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.12
Autjima Thaneerat, C. Surussavadee
{"title":"Precipitation Retrievals Employing GOES Imager Infrared Channels and AMSU MIT Precipitation Retrieval Products","authors":"Autjima Thaneerat, C. Surussavadee","doi":"10.1109/AMS.2014.12","DOIUrl":"https://doi.org/10.1109/AMS.2014.12","url":null,"abstract":"This paper develops a neural network based precipitation retrieval algorithm called the PSU Infrared Precipitation retrieval algorithm version 1 (PIP-1), which employs infrared observations from the Geostationary Operational Environmental Satellite (GOES)-12 Imager. Neural networks are trained and evaluated using overlapping surface precipitation rates from the AMSU MIT Precipitation retrieval (AMP) products accurately retrieved using observations from the passive millimeter-wave spectrometer Advanced Microwave Sounding Unit (AMSU) aboard the U.S. National Oceanic and Atmospheric Administration (NOAA)-18 satellite. Results show good agreement between PIP-1 retrievals and AMP surface precipitation rates in terms of rates, positions, and morphology. PIP-1 retrievals are useful at rates higher than 1 mm/h. Employing PIP-1 with observations from GOES Imagers can provide useful surface precipitation retrievals in real time at every half an hour. PIP-1 can be adapted to work with other geostationary infrared satellites with similar channel characteristics to those of GOES Imagers.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"571 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130216758","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}
引用次数: 0
A Simple Distributed Parameter Analytical Model of Multi-layer Piezoelectric Actuators 多层压电作动器的简单分布参数分析模型
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.55
Yangkun Zhang, Tien-Fu Lu
{"title":"A Simple Distributed Parameter Analytical Model of Multi-layer Piezoelectric Actuators","authors":"Yangkun Zhang, Tien-Fu Lu","doi":"10.1109/AMS.2014.55","DOIUrl":"https://doi.org/10.1109/AMS.2014.55","url":null,"abstract":"Multi-layer piezoelectric actuators (PEAs) are commonly to produce extremely small displacements. Dynamic modeling of PEAs, which can be used to analyze or predict their frequency/time-domain behaviors, plays important roles in the design and control of PEA-based mechanisms. This paper provides a rationale that the complex electrical-mechanical coupled behaviors of PEA can be modelled as an equivalent simple solid with two equivalent excitation forces (proportional to the excitation voltage of PEA) that are equal and opposite, acting at two ends of PEA. Such a rationale is demonstrated through the mathematical derivation process, based on the IEEE standard constitutive relations of piezoelectricity. From the derivation process, the underlying assumptions for the equivalent model to be effective are revealed and the relevant constants in equivalent models are correlated to the standard IEEE piezoelectric material properties. The identified underlying assumptions can provide a guideline for designs to use this simple PEA model. The identified correlation between the constants in equivalent models and the standard IEEE piezoelectric materials allows an alternative way to obtain the equivalent constants, if it is not available for experiments to determine them.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128861646","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}
引用次数: 2
Introducing Undergraduate Electrical Engineering Students to Chaotic Dynamics: Computer Simulations with Logistic Map and Buck Converter 向电气工程本科学生介绍混沌动力学:逻辑映射和Buck变换器的计算机模拟
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.20
S. Iqbal, Xizhe Zang, Yanhe Zhu, Xinyu Liu, Jie Zhao
{"title":"Introducing Undergraduate Electrical Engineering Students to Chaotic Dynamics: Computer Simulations with Logistic Map and Buck Converter","authors":"S. Iqbal, Xizhe Zang, Yanhe Zhu, Xinyu Liu, Jie Zhao","doi":"10.1109/AMS.2014.20","DOIUrl":"https://doi.org/10.1109/AMS.2014.20","url":null,"abstract":"In current undergraduate electrical engineering, the emphasis on linear systems develops a way of thinking that dismisses nonlinear dynamics as spurious oscillations. The linear systems approach oversimplifies the dynamics of nonlinear systems. This paper helps students understand chaotic behavior using simulations of a continuous-time circuit, DC-DC buck converter and a discrete-time system - logistic map. The undergraduate students and teachers can recognize the educational value of chaotic phenomena from them. Practicing engineers will also have more insight of nonlinear circuits and systems by having an exposure to chaotic dynamics.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128909866","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}
引用次数: 16
Cloud Based Communication in B2B Model B2B模型中基于云的通信
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.17
Tamara Luarasi, Andi Domi, Tomi Thomo, Agim Kasaj, Erjon Baboci
{"title":"Cloud Based Communication in B2B Model","authors":"Tamara Luarasi, Andi Domi, Tomi Thomo, Agim Kasaj, Erjon Baboci","doi":"10.1109/AMS.2014.17","DOIUrl":"https://doi.org/10.1109/AMS.2014.17","url":null,"abstract":"The new technology supports new business scenarios or new implementations for the existing ones. The paper describes an implementation of B2B scenario. The Google cloud platform as service makes possible a digital broker system between businesses linked by interests. Architecture of this digital broker consists of common Cloud SQL database, hosted on Google platform, and a Google App Engine application. The users will use the web application from a browser or from small devices through an Android application. In both cases the system will have a user interface for updating the common database and setting the queries over it. As example of a business pair is considered the pair farmer market, which is very much in need for communication especially on difficult rural zones. The paper represents the methodology used for the digital broker creation.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116116873","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}
引用次数: 3
Ant Colony Optimisation with Breslauer Nearest-Neighbour Thermodynamic Parameter for DNA Sequence Design in DNA Computing 基于Breslauer最近邻热力学参数的蚁群优化DNA序列设计
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.13
Z. Ibrahim, M. Jusof, M. Tumari
{"title":"Ant Colony Optimisation with Breslauer Nearest-Neighbour Thermodynamic Parameter for DNA Sequence Design in DNA Computing","authors":"Z. Ibrahim, M. Jusof, M. Tumari","doi":"10.1109/AMS.2014.13","DOIUrl":"https://doi.org/10.1109/AMS.2014.13","url":null,"abstract":"The process of designing a set of good DNA sequences is an essential problem and one of the most practical and important research topics in DNA-based computing. In this field of research, a DNA sequence design problem is defined as a multi-objective problem, and it is evaluated using four objective functions, which are h-measure, similarity, continuity, and hairpin. In addition, two constraints, GC content and melting temperature, are used to maintain uniform chemical characteristics of the sequences. In the authors' previous research, ant colony system (ACS) was proposed to solve the DNA sequence design problem and the Watson-Crick base pair ΔGo37 was used as the distance between nodes in the computational model of DNA sequence design. In the current study, the use of other parameters, namely, Breslauer nearest-neighbour thermodynamic parameters are investigated and the result is compared with the previous work.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131661347","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}
引用次数: 0
Blind Image Quality Assessment Using Natural Scene Statistics in the Gradient Domain 基于梯度域自然场景统计的盲图像质量评价
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.22
Tonghan Wang, H. Shu, Huizhen Jia, Baosheng Li, Lu Zhang
{"title":"Blind Image Quality Assessment Using Natural Scene Statistics in the Gradient Domain","authors":"Tonghan Wang, H. Shu, Huizhen Jia, Baosheng Li, Lu Zhang","doi":"10.1109/AMS.2014.22","DOIUrl":"https://doi.org/10.1109/AMS.2014.22","url":null,"abstract":"An efficient, general-purpose, blind/no-reference image quality assessment (NR-IQA) algorithm based on natural image statistics in the gradient domain is proposed in this letter. We call it REFIINGS (REFerrenceless Image Integrity Notator using Gradient Statistics). The gradient of an image describes its geometric features which can be easily captured by the human visual system (HVS). In the literature, gradient-relevant methods have gotten big success in full-reference (FR) IQA and reduced-reference (RR) IQA. Inspired by these, we extend it to NR-IQA. REFIINGS utilizes the parameters of generalized Laplace distribution as part of its features, and the parameters are directly computed using given formulas which avoid parameters estimation. REFIINGS is computationally quite efficient which makes it an attractive option for the use in real-time blind assessment of visual quality. When tested on the benchmark image database, our method is quite promising.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134335420","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}
引用次数: 1
Sentiment Analysis on News Articles for Stocks 股票新闻文章的情绪分析
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.14
V. Kalyanaraman, Sarah Kazi, Rohan Tondulkar, Sangeeta Oswal
{"title":"Sentiment Analysis on News Articles for Stocks","authors":"V. Kalyanaraman, Sarah Kazi, Rohan Tondulkar, Sangeeta Oswal","doi":"10.1109/AMS.2014.14","DOIUrl":"https://doi.org/10.1109/AMS.2014.14","url":null,"abstract":"In this paper we have used sentiment analysis on news articles to see its effect on stock prices. We collected our dataset using Bing API which gave us links to news articles about a specific company. As no pre-existing sentiment dictionary specifically for stock articles exited, we created a specialized sentiment dictionary only meant to analyze stock articles. Two different machine learning algorithms were applied to the dataset and the accuracy of the two was compared. In order to test our results we attached an overall sentiment to each article in our data set which was compared to the predicted sentiment by the algorithm. We also compared the predicted results with the actual change in the stock prices on the market.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122577029","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}
引用次数: 14
Simple Cloud Federation Simple Cloud Federation
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.27
D. Sitaram, H. L. Phalachandra, Sudheendra Harwalkar, S. Murugesan, Pavan Sudheendra, R. Ananth, B. Vidhisha, Abdul Hannan Kanji, Swati Chidambar Bhat, B. Kruti
{"title":"Simple Cloud Federation","authors":"D. Sitaram, H. L. Phalachandra, Sudheendra Harwalkar, S. Murugesan, Pavan Sudheendra, R. Ananth, B. Vidhisha, Abdul Hannan Kanji, Swati Chidambar Bhat, B. Kruti","doi":"10.1109/AMS.2014.27","DOIUrl":"https://doi.org/10.1109/AMS.2014.27","url":null,"abstract":"Hybrid clouds help in establishing a cost effective, reliable and scalable solution to limitations in traditional on-premise data-center. There is an increasing requirement for federated hybrid cloud solutions to allow private clouds to leverage different public cloud providers. Federated cloud solutions should accommodate infrastructure constraints, balance load between different clouds and keep the cost at a minimal for the client. The following paper proposes an architecture for hybrid clouds called Simple Cloud Federation (SCF). It differs from existing architectures in that it leverages the hierarchical organization features already found in existing cloud systems. It is thus general and easy to implement across a variety of cloud systems, including OpenStack and Amazon. The paper contains details of our OpenStack implementation.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122478048","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}
引用次数: 1
Using Cognitive Behavioral Learning in Multi-agent Pursuit-Evasion Game 认知行为学习在多智能体追逃博弈中的应用
2014 8th Asia Modelling Symposium Pub Date : 2014-09-23 DOI: 10.1109/AMS.2014.15
J. Kuo, Chien-Hung Liu, Fang-Wen Lee
{"title":"Using Cognitive Behavioral Learning in Multi-agent Pursuit-Evasion Game","authors":"J. Kuo, Chien-Hung Liu, Fang-Wen Lee","doi":"10.1109/AMS.2014.15","DOIUrl":"https://doi.org/10.1109/AMS.2014.15","url":null,"abstract":"It is a challenging problem that Multi-Agent systemmake the best response action in a dynamic environment. This study applied probabilistic theory and Piaget's schema theory to develop a cognitive behavioral learning mechanism for the pursuit-evasion game in a dynamic environment. The proposed cognitive schema is divided into two parts, one is a perceptional schema and the other is an intentional schema. According to the agent's state, intentional schema applied probabilistic theory to propose three strategies for prediction of the evader's position in a dynamic environment. Perceptional schema applied case base dreasoning to select the adequate action for the pursuitagent. When an agent faces a new situation, it might useassimilation mechanism to deal with the problem. If the currentcognitive schema cannot explain their environment, accommodation mechanism is used to adapt the cognitive schema of the agent for dealing with their problem.","PeriodicalId":198621,"journal":{"name":"2014 8th Asia Modelling Symposium","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132094410","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}
引用次数: 0
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