Pub Date : 2007-05-25DOI: 10.1109/CTS.2007.4621740
B. Bencsáth, M. Rónai
In this paper we show that the performance of the generic SMTP servers are more limited than we previously thought. We implemented a environment to test SMTP server performance focusing on denial of service (DoS) attacks. Our measurements show that a standard SMTP server can be easily overloaded by sending simple email messages and the overload can occur without consuming all network bandwidth. Our measurements also show that the usage of content filtering applications can harm the performance so much that the server become even more vulnerable to DoS attacks. In the paper we describe the problems of performance measurements in SMTP environment and we also give a detailed background about the performed measurements.
{"title":"Empirical analysis of Denial of Service attack against SMTP servers","authors":"B. Bencsáth, M. Rónai","doi":"10.1109/CTS.2007.4621740","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621740","url":null,"abstract":"In this paper we show that the performance of the generic SMTP servers are more limited than we previously thought. We implemented a environment to test SMTP server performance focusing on denial of service (DoS) attacks. Our measurements show that a standard SMTP server can be easily overloaded by sending simple email messages and the overload can occur without consuming all network bandwidth. Our measurements also show that the usage of content filtering applications can harm the performance so much that the server become even more vulnerable to DoS attacks. In the paper we describe the problems of performance measurements in SMTP environment and we also give a detailed background about the performed measurements.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120944139","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621757
Hui Dong, Zhimin Wang, R. Morris, Jun Huang
Peer-to-peer systems represent a widely accepted approach to sharing massive data and services among large, diverse and varying sets of nodes in the network. In this paper, we introduce an overlay network which constructs the logical network topologies using a global ontology and peer ontological characteristics. Network construction and query model are defined to allow the efficient answer of complex queries based on concepts and relations. Simulation results are used to verify the predicted network properties.
{"title":"Ontology-based peer exchange network(OPEN)","authors":"Hui Dong, Zhimin Wang, R. Morris, Jun Huang","doi":"10.1109/CTS.2007.4621757","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621757","url":null,"abstract":"Peer-to-peer systems represent a widely accepted approach to sharing massive data and services among large, diverse and varying sets of nodes in the network. In this paper, we introduce an overlay network which constructs the logical network topologies using a global ontology and peer ontological characteristics. Network construction and query model are defined to allow the efficient answer of complex queries based on concepts and relations. Simulation results are used to verify the predicted network properties.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"427 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126722278","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621759
I. L. Turner, Keith W. Jones
Technological requirements drive innovation and improvement without considering user-centered requirements which relate to the customer. Designs seem related to ldquotechnological requirementsrdquo and not ldquousercentered requirements.rdquo Case studies, trends and engineering education system illustrate growing importance of customer requirements. Recommend social scientists act as interpreters for customer requirements. Conclude machines and devices transformed to software-defined functions require critical thought.
{"title":"User-centric innovations: A survey part 1","authors":"I. L. Turner, Keith W. Jones","doi":"10.1109/CTS.2007.4621759","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621759","url":null,"abstract":"Technological requirements drive innovation and improvement without considering user-centered requirements which relate to the customer. Designs seem related to ldquotechnological requirementsrdquo and not ldquousercentered requirements.rdquo Case studies, trends and engineering education system illustrate growing importance of customer requirements. Recommend social scientists act as interpreters for customer requirements. Conclude machines and devices transformed to software-defined functions require critical thought.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122024285","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621747
T. Clarke, B. Goldiez
Research at the Institute for Simulation and Training has uncovered the curious fact that human psychomotor activity is mathematically chaotic at high performance levels. This chaotic behavior manifests both when humans are acting alone and when they are interacting with semi-autonomous devices in real and simulated environments. Other studies have reported that robots alone also exhibit mathematically chaotic behavior. This has led to the working hypothesis that chaotic measures such as the Lyapunov exponent can be used to quantify performance levels in human robot collaboration in an objective way. Experiments are in progress to help better understand and quantify the occurrence of chaotic behavior in human robot collaboration. The expectation is that Lyapunov exponent and other chaos-related measures will prove useful as diagnostic tools for both operational tasks and for training. Our goal is to investigate using overt actions (navigational inputs now and possibly other things like facial expression in the future) for capturing the Lyapunov exponent in real time and as a function that varies over time in response to behaviors. The challenge is to determine which factor to measure for a specific type of task. Additional research will be needed to link task to human psychophysical activity and to robot activity as well as the ability to transition between data modes as tasks change.
模拟与训练研究所(Institute for Simulation and Training)的研究发现了一个奇怪的事实:在高水平的表现下，人类的精神运动活动在数学上是混乱的。当人类单独行动时，以及在真实和模拟环境中与半自动设备交互时，都会出现这种混乱行为。其他研究报告称，机器人本身也表现出数学上的混乱行为。这导致了一个工作假设，即混沌测量，如李雅普诺夫指数，可以用来客观地量化人机协作的性能水平。实验正在进行中，以帮助更好地理解和量化人与机器人协作中混沌行为的发生。期望Lyapunov指数和其他与混沌相关的度量将被证明是有用的诊断工具，用于操作任务和培训。我们的目标是研究使用显性行为(现在的导航输入，未来可能还有其他东西，比如面部表情)来实时捕获李雅普诺夫指数，并将其作为响应行为随时间变化的函数。挑战在于为特定类型的任务确定要测量的因素。将任务与人类心理物理活动和机器人活动联系起来，以及随着任务变化在数据模式之间转换的能力，还需要进一步的研究。
{"title":"Collaboration on the edge of chaos","authors":"T. Clarke, B. Goldiez","doi":"10.1109/CTS.2007.4621747","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621747","url":null,"abstract":"Research at the Institute for Simulation and Training has uncovered the curious fact that human psychomotor activity is mathematically chaotic at high performance levels. This chaotic behavior manifests both when humans are acting alone and when they are interacting with semi-autonomous devices in real and simulated environments. Other studies have reported that robots alone also exhibit mathematically chaotic behavior. This has led to the working hypothesis that chaotic measures such as the Lyapunov exponent can be used to quantify performance levels in human robot collaboration in an objective way. Experiments are in progress to help better understand and quantify the occurrence of chaotic behavior in human robot collaboration. The expectation is that Lyapunov exponent and other chaos-related measures will prove useful as diagnostic tools for both operational tasks and for training. Our goal is to investigate using overt actions (navigational inputs now and possibly other things like facial expression in the future) for capturing the Lyapunov exponent in real time and as a function that varies over time in response to behaviors. The challenge is to determine which factor to measure for a specific type of task. Additional research will be needed to link task to human psychophysical activity and to robot activity as well as the ability to transition between data modes as tasks change.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123848099","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621734
W. Pike, Richard May, B. Baddeley, R. Riensche, Joe Bruce, K. Younkin
We present a visualization environment called the scalable reasoning system (SRS) that provides a suite of tools for the collection, analysis, and dissemination of reasoning products. This environment is designed to function across multiple platforms, bringing the display of visual information and the capture of reasoning associated with that information to both mobile and desktop clients. The service-oriented architecture of SRS facilitates collaboration and interaction between users regardless of their location or platform. Visualization services allow data processing to be centralized and analysis results to be collected from distributed clients in real time. We use the concept of ldquoreasoning artifactsrdquo to capture the analytic value attached to individual pieces of information and collections thereof, helping to fuse the foraging and sense-making loops in information analysis. Reasoning structures composed of these artifacts can be shared across platforms while maintaining references to the analytic activity (such as interactive visualization) that produced them.
{"title":"Scalable visual reasoning: Supporting collaboration through distributed analysis","authors":"W. Pike, Richard May, B. Baddeley, R. Riensche, Joe Bruce, K. Younkin","doi":"10.1109/CTS.2007.4621734","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621734","url":null,"abstract":"We present a visualization environment called the scalable reasoning system (SRS) that provides a suite of tools for the collection, analysis, and dissemination of reasoning products. This environment is designed to function across multiple platforms, bringing the display of visual information and the capture of reasoning associated with that information to both mobile and desktop clients. The service-oriented architecture of SRS facilitates collaboration and interaction between users regardless of their location or platform. Visualization services allow data processing to be centralized and analysis results to be collected from distributed clients in real time. We use the concept of ldquoreasoning artifactsrdquo to capture the analytic value attached to individual pieces of information and collections thereof, helping to fuse the foraging and sense-making loops in information analysis. Reasoning structures composed of these artifacts can be shared across platforms while maintaining references to the analytic activity (such as interactive visualization) that produced them.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"92 1-3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128159871","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621782
Kangkang Zhang, Ru-zhi Xu, Qingzhong Li
Following the growing of the scale of distributed collaborative work, centralized registries encounter many difficulties in integration and coordination of application services. This paper proposes a token-based approach of matching and coordination for semantic Web services in distributed collaborative environment. All service nodes are organized as an associate network. A decision algorithm of token passing through the network is introduced. The paper also makes some extension to the matching algorithm so as to not only inputs and outputs but also pre-conditions and effects are considered in the matching process.
{"title":"Matching and coordination of Semantic Web Services in distributed collaborative environment","authors":"Kangkang Zhang, Ru-zhi Xu, Qingzhong Li","doi":"10.1109/CTS.2007.4621782","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621782","url":null,"abstract":"Following the growing of the scale of distributed collaborative work, centralized registries encounter many difficulties in integration and coordination of application services. This paper proposes a token-based approach of matching and coordination for semantic Web services in distributed collaborative environment. All service nodes are organized as an associate network. A decision algorithm of token passing through the network is introduced. The paper also makes some extension to the matching algorithm so as to not only inputs and outputs but also pre-conditions and effects are considered in the matching process.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133590581","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621745
A. Freedy, E. D. Visser, G. Weltman, Nicole Coeyman
We describe a collaborative performance model that captures the critical performance attributes of the distinctive human-robotic decision and control environment. The literature and our initial experimental studies show that the element of trust in human-robot collaboration is an extremely important factor in the performance model, and accordingly we have focused much of our attention on deriving suitable and practical measures of this variable. In this paper we describe the formulation of a decision-analytical based measure of trust as well as the results of two initial experiments designed to examine trust in a tactical human-robot collaborative task performed in our new mixed initiative team performance assessment system (MITPAS) simulation environment.
{"title":"Measurement of trust in human-robot collaboration","authors":"A. Freedy, E. D. Visser, G. Weltman, Nicole Coeyman","doi":"10.1109/CTS.2007.4621745","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621745","url":null,"abstract":"We describe a collaborative performance model that captures the critical performance attributes of the distinctive human-robotic decision and control environment. The literature and our initial experimental studies show that the element of trust in human-robot collaboration is an extremely important factor in the performance model, and accordingly we have focused much of our attention on deriving suitable and practical measures of this variable. In this paper we describe the formulation of a decision-analytical based measure of trust as well as the results of two initial experiments designed to examine trust in a tactical human-robot collaborative task performed in our new mixed initiative team performance assessment system (MITPAS) simulation environment.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114415897","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621770
Reena T. N. Shetty, J. Quinqueton, Pierre-Michel Riccio, J. Penalva, J. Villerd
Our research revolves around a platform called ToxNuc-E entirely dedicated to the research activities in studying effects of nuclear toxicology on plants and animals. Here, researchers from different domains interact and exchange information using our platform as the common ground involving new concepts, methods and services to encourage collaborative work for their research activities. The work is based on the co-operation and collaboration between biologist, chemists, sociology specialists and engineers building the platform. In our proposal we attempt to capture the individual information and then share it with every other member of the platform to build a group representation of knowledge, attracting and encouraging people to participate in collaborative tasks.
{"title":"Collaborative platform using knowledge cartography - ToxNuc-E","authors":"Reena T. N. Shetty, J. Quinqueton, Pierre-Michel Riccio, J. Penalva, J. Villerd","doi":"10.1109/CTS.2007.4621770","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621770","url":null,"abstract":"Our research revolves around a platform called ToxNuc-E entirely dedicated to the research activities in studying effects of nuclear toxicology on plants and animals. Here, researchers from different domains interact and exchange information using our platform as the common ground involving new concepts, methods and services to encourage collaborative work for their research activities. The work is based on the co-operation and collaboration between biologist, chemists, sociology specialists and engineers building the platform. In our proposal we attempt to capture the individual information and then share it with every other member of the platform to build a group representation of knowledge, attracting and encouraging people to participate in collaborative tasks.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"35 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123466488","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621756
T. Hartrum
In a collaboration system, information is sent from one collaborator to one or more other collaborators. Typically this information must be put in a standard format for transmitting through the collaboration framework. If a new type of information is to be sent, new intermediate data structures may need to be defined, new entries may be required in the system 's ontology/data dictionary, and new processing code needs to be written to convert the intermediate data structures into the framework's standard format. In a rapidly changing environment, the software development process is too slow to support timely sharing of information. This paper describes an approach to automating the process of developing new data structures, meta-data definitions, and translation software through automated tools.
{"title":"Automated code generation tools for collaboration systems","authors":"T. Hartrum","doi":"10.1109/CTS.2007.4621756","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621756","url":null,"abstract":"In a collaboration system, information is sent from one collaborator to one or more other collaborators. Typically this information must be put in a standard format for transmitting through the collaboration framework. If a new type of information is to be sent, new intermediate data structures may need to be defined, new entries may be required in the system 's ontology/data dictionary, and new processing code needs to be written to convert the intermediate data structures into the framework's standard format. In a rapidly changing environment, the software development process is too slow to support timely sharing of information. This paper describes an approach to automating the process of developing new data structures, meta-data definitions, and translation software through automated tools.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125945392","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 : 2007-05-25DOI: 10.1109/CTS.2007.4621746
M. Wainer, H. Hexmoor, Marshall Riley
It is widely recognized that successful software developers and researchers need to be technically competent as well as effective team collaborators. This paper describes how technology (tablet PCs, and mobile robots) was used to focus and enhance opportunities to build collaboration and team skills. Tablet PCs were used to foster social skills within a software development course. The product produced, at the request of a robotics researcher, was an application to simulate robot navigation. The robot navigation application enables explorations in human robotic interaction. The introduction of these technologies has served as a focus to help teach and motivate collaboration skills.
{"title":"Tablet PCs and robots: Technology as platform and motivator for explorations in collaboration","authors":"M. Wainer, H. Hexmoor, Marshall Riley","doi":"10.1109/CTS.2007.4621746","DOIUrl":"https://doi.org/10.1109/CTS.2007.4621746","url":null,"abstract":"It is widely recognized that successful software developers and researchers need to be technically competent as well as effective team collaborators. This paper describes how technology (tablet PCs, and mobile robots) was used to focus and enhance opportunities to build collaboration and team skills. Tablet PCs were used to foster social skills within a software development course. The product produced, at the request of a robotics researcher, was an application to simulate robot navigation. The robot navigation application enables explorations in human robotic interaction. The introduction of these technologies has served as a focus to help teach and motivate collaboration skills.","PeriodicalId":363805,"journal":{"name":"2007 International Symposium on Collaborative Technologies and Systems","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115075921","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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