The Experts below are selected from a list of 60951 Experts worldwide ranked by ideXlab platform
Zhang Chi - One of the best experts on this subject based on the ideXlab platform.
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Behavior adaptation based on projection in web services composition
2015 IEEE International Conference on Computer and Communications (ICCC), 2015Co-Authors: Zhang ChiAbstract:Decentralized behavioral adaptation of Web service composition is proposed. Firstly, Web services behavioral was simulated by Labeled Transition System (LTS) and was projected to different connectors thus Web service behavior is orthogonalized, and then system compatibility was judged by checking if there was deadlock in synchronous product of different pairs of behavioral projections over connectors. Secondly, for the mismatch types adaptation countermeasures were analyzed then the mapping relationship of actions was expressed as synchronous vectors and the sequential relationship of vectors was defined as adaptation contract. Lastly, adaptation algorithm was designed to generate adaptation protocol automatically ensuring the mismatch Web services can Correct Interaction under the mediation of adaptor and the validity of the proposed method was verified by an application system.
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Research on Web Service Interface Extending and Composition Compatibility Checking Based on pi Calculus
2008 International Symposium on Information Science and Engineering, 2008Co-Authors: Zhang ChiAbstract:Service interface description is one of the most important problems in services-oriented software architecture, and formal description methods are considered to be a promising approach for service interface. Presently the typical Web service description language (WSDL) only provided the syntax level information that needed by the service Interaction without containing the dynamic behavioral protocol information. So it can not guarantee the Correct Interaction and usage of the service in the open environment. The paper first defined the signature view and the behavior view of the service then designed the modeling method that transfer the Web service behavior into pi calculus process expression and proposed the algorithm that makes the service view transfer into pi calculus process automatically. At last with the help of operational and transitional semantics and formal deduction we can check whether two services are behavior compatible when their composition.
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ISCSCT (1) - Web Service Interface Extending and Description Based on π Calculus
2008 International Symposium on Computer Science and Computational Technology, 2008Co-Authors: Zhang ChiAbstract:Service interface description is one of the most important problems in services-oriented software architecture, and formal description methods are considered to be a promising approach for service interface. Presently the typical Web service description language (WSDL) only provided the syntax level information that needed by the service Interaction without containing the dynamic behavioral protocol information. So it can not guarantee the Correct Interaction and usage of the service in the open environment. The paper first defined the signature view and the behavior view of the service then designed the modeling method that transfer the Web service behavior into π calculus process expression and at last proposed the algorithm that makes the service view transfer into π calculus process automatically. The work of the paper constructed the basis of deducing Web service composition compatibility and substitutability based on π calculus.
Liu Gengdai - One of the best experts on this subject based on the ideXlab platform.
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Multi-touch GIS Based on Optical and Computer Vision
Proceedings of the 2013 International Conference on Information Business and Education Technology (ICIBET-2013), 2013Co-Authors: Bo Wan, Dongxue Zhao, Xiu Wen, Liu GengdaiAbstract:This paper describes a multi-touch GIS(Geography Information System) based on optical and computer vision. In the system, user can operates map directly through gesture. A series of image processing and computation of video frames is used to get data and trajectory of touch point according to the characteristics of touch point. Some multi-touch gestures corresponding to typical GIS operation and its state transition model are defined. According to these definitions, a gesture recognition method based on geometric characteristics of trajectory is given. This method can recognize the trajectory into Correct Interaction gestures and operate the GIS through MapX.
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A Multi-Touch GIS Interaction Gesture Recognition Method *
2013Co-Authors: Bo Wan, Dongxue Zhao, Liu Gengdai, Xiu WenAbstract:th , 2013; revised: Feb. 25 th Abstract: This paper describes a GIS (Geography Information System) system based on multi-touch technology. The system uses the Rear-DI technology to build touch platform, and transfers touch point data by TUIO (Table-Top User Interfaces Objects) protocol between the tracking module and GIS module. Some multi-touch gestures corresponding to common GIS operation and its state transition model are defined in the system. According to these definitions, a track- based gesture recognition method is given. This method can recognize the trajectory into Correct Interaction gestures and operate the GIS through MapX.
Roland Freudl - One of the best experts on this subject based on the ideXlab platform.
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cloning and molecular characterization of the secy genes from bacillus licheniformis and staphylococcus carnosus comparative analysis of nine members of the secy family
Molecular Genetics and Genomics, 1992Co-Authors: Silvia Tschauder, Arnold J. M. Driessen, Roland FreudlAbstract:SecY is a central component of the export machinery that mediates the translocation of secretory proteins across the plasma membrane of Escherichia coli. We have cloned and sequenced the secY genes from Bacillus licheniformis and Staphylococcus carnosus. The deduced amino acid sequences are highly homologous to those of other known SecY polypeptides, all having the potential to form 10 transmembrane segments. Comparative analysis of 9 SecY polypeptides, derived from different bacteria, revealed that 14 amino acid positions (2,7%) are identical in all SecY proteins and 89 (16.9%) show conservative changes. Clusters of conserved amino acid residues were found in 4 of the 10 transmembrane segments and 2 of the 6 cytoplasmic domains. It is suggested that the conserved regions might be involved in the translocation activity of SecY or might be required for the Correct Interaction of SecY with other components of the secretion apparatus.
Xiu Wen - One of the best experts on this subject based on the ideXlab platform.
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Multi-touch GIS Based on Optical and Computer Vision
Proceedings of the 2013 International Conference on Information Business and Education Technology (ICIBET-2013), 2013Co-Authors: Bo Wan, Dongxue Zhao, Xiu Wen, Liu GengdaiAbstract:This paper describes a multi-touch GIS(Geography Information System) based on optical and computer vision. In the system, user can operates map directly through gesture. A series of image processing and computation of video frames is used to get data and trajectory of touch point according to the characteristics of touch point. Some multi-touch gestures corresponding to typical GIS operation and its state transition model are defined. According to these definitions, a gesture recognition method based on geometric characteristics of trajectory is given. This method can recognize the trajectory into Correct Interaction gestures and operate the GIS through MapX.
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A Multi-Touch GIS Interaction Gesture Recognition Method *
2013Co-Authors: Bo Wan, Dongxue Zhao, Liu Gengdai, Xiu WenAbstract:th , 2013; revised: Feb. 25 th Abstract: This paper describes a GIS (Geography Information System) system based on multi-touch technology. The system uses the Rear-DI technology to build touch platform, and transfers touch point data by TUIO (Table-Top User Interfaces Objects) protocol between the tracking module and GIS module. Some multi-touch gestures corresponding to common GIS operation and its state transition model are defined in the system. According to these definitions, a track- based gesture recognition method is given. This method can recognize the trajectory into Correct Interaction gestures and operate the GIS through MapX.
Bo Wan - One of the best experts on this subject based on the ideXlab platform.
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Multi-touch GIS Based on Optical and Computer Vision
Proceedings of the 2013 International Conference on Information Business and Education Technology (ICIBET-2013), 2013Co-Authors: Bo Wan, Dongxue Zhao, Xiu Wen, Liu GengdaiAbstract:This paper describes a multi-touch GIS(Geography Information System) based on optical and computer vision. In the system, user can operates map directly through gesture. A series of image processing and computation of video frames is used to get data and trajectory of touch point according to the characteristics of touch point. Some multi-touch gestures corresponding to typical GIS operation and its state transition model are defined. According to these definitions, a gesture recognition method based on geometric characteristics of trajectory is given. This method can recognize the trajectory into Correct Interaction gestures and operate the GIS through MapX.
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A Multi-Touch GIS Interaction Gesture Recognition Method *
2013Co-Authors: Bo Wan, Dongxue Zhao, Liu Gengdai, Xiu WenAbstract:th , 2013; revised: Feb. 25 th Abstract: This paper describes a GIS (Geography Information System) system based on multi-touch technology. The system uses the Rear-DI technology to build touch platform, and transfers touch point data by TUIO (Table-Top User Interfaces Objects) protocol between the tracking module and GIS module. Some multi-touch gestures corresponding to common GIS operation and its state transition model are defined in the system. According to these definitions, a track- based gesture recognition method is given. This method can recognize the trajectory into Correct Interaction gestures and operate the GIS through MapX.
