Pub Date : 2003-04-24DOI: 10.1109/SIEDS.2003.158015
D. Longo, S. Peirce, T. Skalak, M. Marsden, L. Davidson, B. Dzamba, D. DeSimone
Computer simulation of the interactions between numerous cells is a novel approach to analyzing and comprehending the spatial and temporal patterns that are formed in a large network of cells within a tissue. Coupled with experimental observation, computational modeling at the cellular level is a powerful method that is capable of providing valuable information about the functions of quite complex biological systems. For this study, the biological system under examination is the Xenopus laevis embryo. In the blastocoel roof of the Xenopus laevis embryo, thinning of multiple cell layers into two cell layers is accomplished via radial intercalation of the deep layer cells. A cell-based simulation has been developed to analzye the process of blastocoel roof (BCR) thinning event. The cellular automata model can predict important characteristics of the BCR thinning process including total thinning time and spatial fibronectin fibril densities.
{"title":"Computational automata simulation of blastocoel roof thinning in the Xenopu laevis embryo","authors":"D. Longo, S. Peirce, T. Skalak, M. Marsden, L. Davidson, B. Dzamba, D. DeSimone","doi":"10.1109/SIEDS.2003.158015","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158015","url":null,"abstract":"Computer simulation of the interactions between numerous cells is a novel approach to analyzing and comprehending the spatial and temporal patterns that are formed in a large network of cells within a tissue. Coupled with experimental observation, computational modeling at the cellular level is a powerful method that is capable of providing valuable information about the functions of quite complex biological systems. For this study, the biological system under examination is the Xenopus laevis embryo. In the blastocoel roof of the Xenopus laevis embryo, thinning of multiple cell layers into two cell layers is accomplished via radial intercalation of the deep layer cells. A cell-based simulation has been developed to analzye the process of blastocoel roof (BCR) thinning event. The cellular automata model can predict important characteristics of the BCR thinning process including total thinning time and spatial fibronectin fibril densities.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125169252","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}
Pub Date : 2003-04-24DOI: 10.1109/SIEDS.2003.158003
N. Reyhani, K. Badie, M. Kharrat
What actually is done in case of text summarization in case based reasoning terminology is that, the situation is defined as the ensemble of some consecutive sentences, and the solution is the set of the sentences selected as the outcome of the summarization process. In order to make a quality summary considering the context, a semantic understanding, seems to be important. In this respect we propose an approach to use a two layered CBR approach. Regarding this, we proposed an approach to text summarization based on two layered case based reasoning framework. Regarding this, the primary CBR cycle tries to make a summary of the source text, and the secondary CBR cycle tries to detect the context, and changes the bias values (fixed values) related to the primary CBR modules.
{"title":"A two layered case based reasoning approach to text summarization, based on summarization pattern","authors":"N. Reyhani, K. Badie, M. Kharrat","doi":"10.1109/SIEDS.2003.158003","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158003","url":null,"abstract":"What actually is done in case of text summarization in case based reasoning terminology is that, the situation is defined as the ensemble of some consecutive sentences, and the solution is the set of the sentences selected as the outcome of the summarization process. In order to make a quality summary considering the context, a semantic understanding, seems to be important. In this respect we propose an approach to use a two layered CBR approach. Regarding this, we proposed an approach to text summarization based on two layered case based reasoning framework. Regarding this, the primary CBR cycle tries to make a summary of the source text, and the secondary CBR cycle tries to detect the context, and changes the bias values (fixed values) related to the primary CBR modules.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121318110","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}
Pub Date : 2003-04-24DOI: 10.1109/SIEDS.2003.158026
Z. Wang, Wenda Ma
The classical (static) sampling strategies become less and less adequate for today's manufacturing practice because of their slow responses to process changes in the highly competitive industry society. Thus, it is desired to make better use of the inspection information and detect process shifts more promptly. An optimization scheme of designing a variable-sample-size attribute control chart is presented. The adjustment on sample size is based on the current process status observations for faster detection of any abnormality. As a result, a new adaptive-sample-size control chart for attributes, the VSS-np chart is proposed, using an optimization scheme. Comparison studies show that its performance characteristics is significantly better than traditional Shewhart control charts for attributes, since the design parameters are adaptive and obtained through the optimization procedures aimed at getting optimum average run length (ARL) properties.
{"title":"Design of an optimum adaptive control chart for attributes","authors":"Z. Wang, Wenda Ma","doi":"10.1109/SIEDS.2003.158026","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158026","url":null,"abstract":"The classical (static) sampling strategies become less and less adequate for today's manufacturing practice because of their slow responses to process changes in the highly competitive industry society. Thus, it is desired to make better use of the inspection information and detect process shifts more promptly. An optimization scheme of designing a variable-sample-size attribute control chart is presented. The adjustment on sample size is based on the current process status observations for faster detection of any abnormality. As a result, a new adaptive-sample-size control chart for attributes, the VSS-np chart is proposed, using an optimization scheme. Comparison studies show that its performance characteristics is significantly better than traditional Shewhart control charts for attributes, since the design parameters are adaptive and obtained through the optimization procedures aimed at getting optimum average run length (ARL) properties.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129492896","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}
Pub Date : 2003-04-24DOI: 10.1109/SIEDS.2003.158006
B. Howe, C. Richardson, M. Rigdon, S. Russell, S. Sprague, G. Donohue, F. Wieland
The purpose is to design and evaluate, by way of an initial existence proof, the premise that slot allocation via an auction is a possible solution to the air traffic congestion problem surrounding high demand/capacity ratio airports. By demonstrating the existence of such a method for allocating slots at congested airports, this would lead to further research in much greater detail in creating an overall system design of slot allocation that could be implemented. A successful implementation of a slot allocation system would generate capital for air transportation system modernization and reduce delay into and out of the high traffic airports. This in turn is directly correlated to an increase in safety due to a decrease in the number of safe separation conditions that currently occur. To demonstrate potential existence the project is broken down into three primary parts. Several sets of auction rules are used to simulate potential fleet assignment to the airports included within the slot allocation system. Various sets of auction rules are then used as input parameters to generate multiple schedules. Once the schedule is determined a network delay simulation is run to measure delay and demand met by that particular schedule. Finally, the data collected from the simulation runs is analyzed and the results indicates that an auction is a feasible method of allocation for airport time slots for commercial airlines.
{"title":"Potential air traffic congestion solution: slot allocation by auction method","authors":"B. Howe, C. Richardson, M. Rigdon, S. Russell, S. Sprague, G. Donohue, F. Wieland","doi":"10.1109/SIEDS.2003.158006","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158006","url":null,"abstract":"The purpose is to design and evaluate, by way of an initial existence proof, the premise that slot allocation via an auction is a possible solution to the air traffic congestion problem surrounding high demand/capacity ratio airports. By demonstrating the existence of such a method for allocating slots at congested airports, this would lead to further research in much greater detail in creating an overall system design of slot allocation that could be implemented. A successful implementation of a slot allocation system would generate capital for air transportation system modernization and reduce delay into and out of the high traffic airports. This in turn is directly correlated to an increase in safety due to a decrease in the number of safe separation conditions that currently occur. To demonstrate potential existence the project is broken down into three primary parts. Several sets of auction rules are used to simulate potential fleet assignment to the airports included within the slot allocation system. Various sets of auction rules are then used as input parameters to generate multiple schedules. Once the schedule is determined a network delay simulation is run to measure delay and demand met by that particular schedule. Finally, the data collected from the simulation runs is analyzed and the results indicates that an auction is a feasible method of allocation for airport time slots for commercial airlines.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128530663","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}
Pub Date : 2003-04-24DOI: 10.1109/SIEDS.2003.158025
S. Rezvani, G. Prasad, S. Robinson
Statisticians use the term interaction for situations wherein the effect of one variable depends upon another variable [McNeil, Francis, McNeil, 1975]. A deep knowledge about interdependencies and interactions among elements within a domain is conducive to devising action plans towards a desired situation. It allows for product or systems optimization, preventing pitfalls and diagnosing malfunctions. As part of a project to develop a knowledge based system for supporting research activities in the field of polymeric adhesives, we compared different methods of assessing interactions. Here, we employed general liner models as a classical approach, characteristic angles, self-organizing maps (SOM) and interactive visual feature extraction methods (IVFEM) as alternative techniques. The latter is based on a data projection method, where attributes are mapped to areas that can then be selected interactively. In this manner, we can describe interaction in terms of shared attribute regions in proportion to combined area. As a quantization method, we initialize SOMs with characteristic angles to illustrate partial interactions. Characteristic angles based on multivariate analysis of the angles between eigenvectors can be utilized to describe partial interactions associated with an explained variability.
{"title":"Methods for assessing multivariate interactions in a manufacturing system","authors":"S. Rezvani, G. Prasad, S. Robinson","doi":"10.1109/SIEDS.2003.158025","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158025","url":null,"abstract":"Statisticians use the term interaction for situations wherein the effect of one variable depends upon another variable [McNeil, Francis, McNeil, 1975]. A deep knowledge about interdependencies and interactions among elements within a domain is conducive to devising action plans towards a desired situation. It allows for product or systems optimization, preventing pitfalls and diagnosing malfunctions. As part of a project to develop a knowledge based system for supporting research activities in the field of polymeric adhesives, we compared different methods of assessing interactions. Here, we employed general liner models as a classical approach, characteristic angles, self-organizing maps (SOM) and interactive visual feature extraction methods (IVFEM) as alternative techniques. The latter is based on a data projection method, where attributes are mapped to areas that can then be selected interactively. In this manner, we can describe interaction in terms of shared attribute regions in proportion to combined area. As a quantization method, we initialize SOMs with characteristic angles to illustrate partial interactions. Characteristic angles based on multivariate analysis of the angles between eigenvectors can be utilized to describe partial interactions associated with an explained variability.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126112561","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}
Pub Date : 2003-04-24DOI: 10.1109/SIEDS.2003.158010
J. Crawford, J. Do, C. Leduc, A. Malik, K. Gormley, E. Luebke, W. Scherer
This project addresses a current need of The Aerospace Corporation, a federally-funded research and development (R&D) center, to make appropriate project selections on a yearly basis. The technology roadmap concept was integrated with a discrete sequential stochastic dynamic program to model the project selection problem. We have created a software package (SWORD): Simulation With Optimization for Research and Development to implement the proposed model. SWORD utilizes a combination of COTS (Commercial Off-The-Shelf) tools: Microsoft Project, Excel, Crystal Ball, and OptQuest to produce heuristic solutions to the NP complete problem. Included in the model are inputs, such as project cost and project probability of failure, that allow for the analysis of different R&D project selection strategies. The model will output a suggested R&D investment strategy for Aerospace for a variable number of years. Along with this, the model estimates the total utility, or total benefit, of pursuing that specific portfolio of projects along with numerous other performance statistics.
{"title":"SWORD: the latest weapon in the project selection arsenal","authors":"J. Crawford, J. Do, C. Leduc, A. Malik, K. Gormley, E. Luebke, W. Scherer","doi":"10.1109/SIEDS.2003.158010","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158010","url":null,"abstract":"This project addresses a current need of The Aerospace Corporation, a federally-funded research and development (R&D) center, to make appropriate project selections on a yearly basis. The technology roadmap concept was integrated with a discrete sequential stochastic dynamic program to model the project selection problem. We have created a software package (SWORD): Simulation With Optimization for Research and Development to implement the proposed model. SWORD utilizes a combination of COTS (Commercial Off-The-Shelf) tools: Microsoft Project, Excel, Crystal Ball, and OptQuest to produce heuristic solutions to the NP complete problem. Included in the model are inputs, such as project cost and project probability of failure, that allow for the analysis of different R&D project selection strategies. The model will output a suggested R&D investment strategy for Aerospace for a variable number of years. Along with this, the model estimates the total utility, or total benefit, of pursuing that specific portfolio of projects along with numerous other performance statistics.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114240440","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}
Pub Date : 1900-01-01DOI: 10.1109/SIEDS.2003.158009
J. Ivey, T. Rubenstein, A. Snyder, M. Stewart, E. Luebke, K. P. White, P. Wu, J. Sparks, D. Whitney
Solid rocket propellants have various applications, including weapons, satellites, and air bag technology. In these applications burn rate and pattern prediction are important parameters in predicting ballistic motor performances and motor design. While existing equations accurately predict burn rates for most solid engine propellants, these standard equations do not adequately capture rates associated with certain engine formations, such as Solid Fuel Ramjets (SFRJ) and some Solid Rocket Motors (SRM). The propellant burning rates in SFRJ and SRM are not homogeneous due to several factors, such as the flowfield, edge effects, etc. To overcome this deficiency, Atlantic Research Corporation (ARC) is developing a novel ultrasound technology to measure burn rate directly. Technical challenges arise, however, when the echo of the propellant surface is weak and difficult to detect, because of limited ultrasonic power, the mismatch of case and propellant impedance, and associated electronic and magnetic noises. Thus, the main objective of this project is to accurately recognize the echo of sound waves from time-series data corrupted by noise. The design, testing, and implementation of an algorithm to extract burn rate profiles from ultrasound measurements is discussed. Also described is the design of a prototype human-computer interface that is used to record and display burn rate data.
{"title":"Developing a signal processing tool for rocket motor measurements","authors":"J. Ivey, T. Rubenstein, A. Snyder, M. Stewart, E. Luebke, K. P. White, P. Wu, J. Sparks, D. Whitney","doi":"10.1109/SIEDS.2003.158009","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158009","url":null,"abstract":"Solid rocket propellants have various applications, including weapons, satellites, and air bag technology. In these applications burn rate and pattern prediction are important parameters in predicting ballistic motor performances and motor design. While existing equations accurately predict burn rates for most solid engine propellants, these standard equations do not adequately capture rates associated with certain engine formations, such as Solid Fuel Ramjets (SFRJ) and some Solid Rocket Motors (SRM). The propellant burning rates in SFRJ and SRM are not homogeneous due to several factors, such as the flowfield, edge effects, etc. To overcome this deficiency, Atlantic Research Corporation (ARC) is developing a novel ultrasound technology to measure burn rate directly. Technical challenges arise, however, when the echo of the propellant surface is weak and difficult to detect, because of limited ultrasonic power, the mismatch of case and propellant impedance, and associated electronic and magnetic noises. Thus, the main objective of this project is to accurately recognize the echo of sound waves from time-series data corrupted by noise. The design, testing, and implementation of an algorithm to extract burn rate profiles from ultrasound measurements is discussed. Also described is the design of a prototype human-computer interface that is used to record and display burn rate data.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122938741","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}
Pub Date : 1900-01-01DOI: 10.1109/SIEDS.2003.158029
C.M. Hawkins, J. D. Pittman, F. Prats, W.E. Wheeler, D. Brown, J. Dalton, B. Johnstone
Based on its recent studies, the National Institute of Justice (NIJ) identifies information exchange as the most vital need of law enforcement agencies around the United States. Research by the Virginia Institute for Justice Information Systems (VIJIS) at the University of Virginia has also revealed the need for statistical analysis of criminal incident data. In order to address the need for information sharing and cross-jurisdictional analysis between different law enforcement agencies in a given region, VIJIS in conjunction with the Systems and Information Engineering (SIE) Department at the University of Virginia authorized the development of the Web crime analysis toolkit (WebCAT). This application integrates an XML-driven database along with a geographic information system (GIS) and other analysis tools through a free, Web-based interface.
{"title":"WebCAT: the design and implementation of the Web-based crime analysis toolkit","authors":"C.M. Hawkins, J. D. Pittman, F. Prats, W.E. Wheeler, D. Brown, J. Dalton, B. Johnstone","doi":"10.1109/SIEDS.2003.158029","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.158029","url":null,"abstract":"Based on its recent studies, the National Institute of Justice (NIJ) identifies information exchange as the most vital need of law enforcement agencies around the United States. Research by the Virginia Institute for Justice Information Systems (VIJIS) at the University of Virginia has also revealed the need for statistical analysis of criminal incident data. In order to address the need for information sharing and cross-jurisdictional analysis between different law enforcement agencies in a given region, VIJIS in conjunction with the Systems and Information Engineering (SIE) Department at the University of Virginia authorized the development of the Web crime analysis toolkit (WebCAT). This application integrates an XML-driven database along with a geographic information system (GIS) and other analysis tools through a free, Web-based interface.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"356 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116262363","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}
Pub Date : 1900-01-01DOI: 10.1109/SIEDS.2003.157995
The following topics are dealt with: data mining; systems engineering application; case based reasoning; intelligent tutoring system; infrastructure protection; security; air traffic management; road traffic; process design; XML application; Web application.
{"title":"Proceedings of the 2003 IEEE Systems and Information Engineering Design Symposium (IEEE Cat. No.03EX653)","authors":"","doi":"10.1109/SIEDS.2003.157995","DOIUrl":"https://doi.org/10.1109/SIEDS.2003.157995","url":null,"abstract":"The following topics are dealt with: data mining; systems engineering application; case based reasoning; intelligent tutoring system; infrastructure protection; security; air traffic management; road traffic; process design; XML application; Web application.","PeriodicalId":256790,"journal":{"name":"IEEE Systems and Information Engineering Design Symposium, 2003","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121072875","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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