Pub Date : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130474
C. Neureiter, C. Binder, Boris Brankovic, G. Lastro
With the ongoing evolution of cyber-physical systems (CPS) new methods are required to deal with complexity. The concept of Model Based Systems Engineering (MBSE) appears to be a promising approach, even though the common paradigm of object modelling poses a challenge for stakeholders from different domains. To better enable stakeholder integration, in recent past the concept of Domain Specific Systems Engineering (DSSE) has been proposed. This concept aims at establishing a modelling approach around domain specific viewpoints and model kinds. The DSSE approach could have been validated in different domains so far. To enable the integration of systems from different domains into System-of-Systems (SoS), this paper contributes conceptual thoughts on how to extend the DSSE approach for application in System-of-Systems Engineering (SoSE). For this purpose, the paper first gives a brief summary on the core concepts of DSSE. Further, a case study is realized to learn about the needs and limitations when it comes to extending DSSE for System-of-Systems Engineering. Finally, identified research items are discussed in more detail and an outlook to our future work is presented.
{"title":"Extending the Concept of Domain Specific Systems Engineering to System-of-Systems","authors":"C. Neureiter, C. Binder, Boris Brankovic, G. Lastro","doi":"10.1109/SoSE50414.2020.9130474","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130474","url":null,"abstract":"With the ongoing evolution of cyber-physical systems (CPS) new methods are required to deal with complexity. The concept of Model Based Systems Engineering (MBSE) appears to be a promising approach, even though the common paradigm of object modelling poses a challenge for stakeholders from different domains. To better enable stakeholder integration, in recent past the concept of Domain Specific Systems Engineering (DSSE) has been proposed. This concept aims at establishing a modelling approach around domain specific viewpoints and model kinds. The DSSE approach could have been validated in different domains so far. To enable the integration of systems from different domains into System-of-Systems (SoS), this paper contributes conceptual thoughts on how to extend the DSSE approach for application in System-of-Systems Engineering (SoSE). For this purpose, the paper first gives a brief summary on the core concepts of DSSE. Further, a case study is realized to learn about the needs and limitations when it comes to extending DSSE for System-of-Systems Engineering. Finally, identified research items are discussed in more detail and an outlook to our future work is presented.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125700800","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 : 2020-06-01DOI: 10.1109/sose50414.2020.9130470
{"title":"SoSE 2020 Cover Page","authors":"","doi":"10.1109/sose50414.2020.9130470","DOIUrl":"https://doi.org/10.1109/sose50414.2020.9130470","url":null,"abstract":"","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126823318","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130554
M. D. C. Estil-les, C. Bersani, R. Sacile
This paper introduces two optimization-based approaches for the scheduling and rescheduling problems on the high-speed railway network. The first scheduling model defines the best schedules for a set of high-speed trains taking into account costumers’ demand, passengers carrying capacity of trains and the priority of the trains to cover the rail sections in case of conflict on the railway lines. Consecutively, the generated feasible timetables are used for the train rescheduling problem which aims to minimize possible consequences due to events that may affect negatively the real time traffic management. Basing on a case study applied on the Northern Italy railway network, the proposed models seem to produce significant improvements in passengers satisfaction in terms of travel times and to restore the railway network in case of disturbances.
{"title":"High-speed train scheduling and rescheduling models","authors":"M. D. C. Estil-les, C. Bersani, R. Sacile","doi":"10.1109/SoSE50414.2020.9130554","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130554","url":null,"abstract":"This paper introduces two optimization-based approaches for the scheduling and rescheduling problems on the high-speed railway network. The first scheduling model defines the best schedules for a set of high-speed trains taking into account costumers’ demand, passengers carrying capacity of trains and the priority of the trains to cover the rail sections in case of conflict on the railway lines. Consecutively, the generated feasible timetables are used for the train rescheduling problem which aims to minimize possible consequences due to events that may affect negatively the real time traffic management. Basing on a case study applied on the Northern Italy railway network, the proposed models seem to produce significant improvements in passengers satisfaction in terms of travel times and to restore the railway network in case of disturbances.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133645469","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130480
U. Lenk
The article discusses similarities in the concepts of Smart Cities and Model-Based Systems Engineering and comes to the conclusion that there distinct commonalities, but obviously also differences in related achievements. Examples for commonalities are the need for interdisciplinary cooperation, use of standards, the need for a central information system, and even on sociological level there are analogies and similar challenges. As a consequence from the identified differences in their achievements some recommondations are given what both concepts can learn from each other, or where there is room for improvement.
{"title":"Smart Cities and MBSE: Comparison of Concepts","authors":"U. Lenk","doi":"10.1109/SoSE50414.2020.9130480","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130480","url":null,"abstract":"The article discusses similarities in the concepts of Smart Cities and Model-Based Systems Engineering and comes to the conclusion that there distinct commonalities, but obviously also differences in related achievements. Examples for commonalities are the need for interdisciplinary cooperation, use of standards, the need for a central information system, and even on sociological level there are analogies and similar challenges. As a consequence from the identified differences in their achievements some recommondations are given what both concepts can learn from each other, or where there is room for improvement.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129886824","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130463
Ahmed Abdelmawgoud, P. Hershey
The Department of Defense conducts missions that include multiple missiles that communicate in order to successfully achieve mission goals. To accomplish this goal, delay in the multi-missile systems must be minimized. Algorithms exist that address portions of this problem by providing a consensus protocol that considers time-delayed communications for synchronized networks with fixed topologies. This paper expands this approach to provide a common consensus protocol that can be used in both fixed topology and switched topology communications networks. The effect of this enhancement is to dramatically reduce delay for multi-missile communications systems; thereby enabling more time-efficient consensus and improving mission success.
{"title":"Distributed Consensus Algorithm For Multi-Missile Networks With Switching-Topologies And Dynamically-Changed Delay (Dcams)","authors":"Ahmed Abdelmawgoud, P. Hershey","doi":"10.1109/SoSE50414.2020.9130463","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130463","url":null,"abstract":"The Department of Defense conducts missions that include multiple missiles that communicate in order to successfully achieve mission goals. To accomplish this goal, delay in the multi-missile systems must be minimized. Algorithms exist that address portions of this problem by providing a consensus protocol that considers time-delayed communications for synchronized networks with fixed topologies. This paper expands this approach to provide a common consensus protocol that can be used in both fixed topology and switched topology communications networks. The effect of this enhancement is to dramatically reduce delay for multi-missile communications systems; thereby enabling more time-efficient consensus and improving mission success.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124005713","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130530
M. Siket, G. Eigner, L. Kovács
The growing cancer cases attract more and more scientific research and introductions of new models, applied control algorithms and methods. The models are fundamental in the area of computer generated low-dose metronomic (LDM) chemotherapy, when the administration of the drug is ought to be optimized. Generally the in-silico tests and investigations are based on a model, which is hypothesized to describe the given process reliably and accurately. The analysis of the models and its parameters is crucial for therapy generation. We performed an analysis of a third-order tumor growth model based on sensitivity analysis and identifiability tests. The results show that a subset of parameters can be fixed as population values and the rest of the parameter sets results in an identifiable system with minor loss of accuracy.
{"title":"Sensitivity and identifiability analysis of a third-order tumor growth model","authors":"M. Siket, G. Eigner, L. Kovács","doi":"10.1109/SoSE50414.2020.9130530","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130530","url":null,"abstract":"The growing cancer cases attract more and more scientific research and introductions of new models, applied control algorithms and methods. The models are fundamental in the area of computer generated low-dose metronomic (LDM) chemotherapy, when the administration of the drug is ought to be optimized. Generally the in-silico tests and investigations are based on a model, which is hypothesized to describe the given process reliably and accurately. The analysis of the models and its parameters is crucial for therapy generation. We performed an analysis of a third-order tumor growth model based on sensitivity analysis and identifiability tests. The results show that a subset of parameters can be fixed as population values and the rest of the parameter sets results in an identifiable system with minor loss of accuracy.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122996329","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130557
Jing Zhang, Yu Zhang, Yan He, Fei Xu
Many different kinds of actions and businesses would be involved when analyzing a System of Systems (SoS), such as modeling, simulation, evaluation, optimization and so on. Because of the essential characteristics of SoS, i.e. the high-complexity, plenty elements, massive relationships, uncertain conditions, and varied human factors, etc., it’s difficult to deal with a SoS effectively. Capability Analysis is a good solution to SoS research. And the most important step of SoS Capability Analysis (SoSCA) is to construct Capability Architecture (CArch) at very beginning. So as to clarify the corresponding SoS capability requirements, and declare the uniform specification and descriptions for the particular SoS missions. Then the SoS missions could be divided into several sub-missions and be dealt with jointly or respectively according to the coherent principles. Furthermore, all the analysis results could be integrated reasonably to avoid unnecessary diffusion or conflict. Yet, constructing SoS CArch would be a much more difficult and complex procedure, because there aren’t the standardized systematic methods or procedures to guide SoS CArch’s design, exploitation and application. To solve the problem, this paper would research the basal primary issue and try to support an effective methodology, i.e. CArchMeth, for SoS CArch construction. CArchMeth could be summarized as Domain Analysis, mainly including Mission Domain, Capability Domain, Method Domain, and Object Domain. The realized CArch could associate each aspect of the special SoS, such as the mission, the capability, the supporting element system, and so on. Then the requirement analysis, configurations description, components, workflow, resources and the pivotal principles of CArchMeth would be discussed respectively. Furthermore, some application would be supported to clarify the effect of CArchMeth.
{"title":"Research on Capability Architecture Construction Methodology to System of Systems","authors":"Jing Zhang, Yu Zhang, Yan He, Fei Xu","doi":"10.1109/SoSE50414.2020.9130557","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130557","url":null,"abstract":"Many different kinds of actions and businesses would be involved when analyzing a System of Systems (SoS), such as modeling, simulation, evaluation, optimization and so on. Because of the essential characteristics of SoS, i.e. the high-complexity, plenty elements, massive relationships, uncertain conditions, and varied human factors, etc., it’s difficult to deal with a SoS effectively. Capability Analysis is a good solution to SoS research. And the most important step of SoS Capability Analysis (SoSCA) is to construct Capability Architecture (CArch) at very beginning. So as to clarify the corresponding SoS capability requirements, and declare the uniform specification and descriptions for the particular SoS missions. Then the SoS missions could be divided into several sub-missions and be dealt with jointly or respectively according to the coherent principles. Furthermore, all the analysis results could be integrated reasonably to avoid unnecessary diffusion or conflict. Yet, constructing SoS CArch would be a much more difficult and complex procedure, because there aren’t the standardized systematic methods or procedures to guide SoS CArch’s design, exploitation and application. To solve the problem, this paper would research the basal primary issue and try to support an effective methodology, i.e. CArchMeth, for SoS CArch construction. CArchMeth could be summarized as Domain Analysis, mainly including Mission Domain, Capability Domain, Method Domain, and Object Domain. The realized CArch could associate each aspect of the special SoS, such as the mission, the capability, the supporting element system, and so on. Then the requirement analysis, configurations description, components, workflow, resources and the pivotal principles of CArchMeth would be discussed respectively. Furthermore, some application would be supported to clarify the effect of CArchMeth.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123002144","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130524
Ardavan Mohammadhassani, A. Teymouri, A. Mehrizi‐Sani, K. Tehrani
Distributed renewable energy resources (DER) are interfaced in a microgrid through power electronic converters (PEC). PECs utilize different types of sensors for their reliable and stable operation. However, as the ratings of a DER increase, its interfacing PEC becomes more sophisticated requiring more sensors. This will make PECs more vulnerable to sensor malfunctions, which may be caused by cyberattacks. This paper analyzes the performance of a microgrid under sensor malfunction attacks in PECs for different scenarios in MATLAB/SIMULINK and provides a final evaluation based on the acquired results.
{"title":"Performance Evaluation of an Inverter-Based Microgrid Under Cyberattacks","authors":"Ardavan Mohammadhassani, A. Teymouri, A. Mehrizi‐Sani, K. Tehrani","doi":"10.1109/SoSE50414.2020.9130524","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130524","url":null,"abstract":"Distributed renewable energy resources (DER) are interfaced in a microgrid through power electronic converters (PEC). PECs utilize different types of sensors for their reliable and stable operation. However, as the ratings of a DER increase, its interfacing PEC becomes more sophisticated requiring more sensors. This will make PECs more vulnerable to sensor malfunctions, which may be caused by cyberattacks. This paper analyzes the performance of a microgrid under sensor malfunction attacks in PECs for different scenarios in MATLAB/SIMULINK and provides a final evaluation based on the acquired results.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"282 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124508511","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130497
F. Wilking, B. Schleich, S. Wartzack
Model Based System Engineering is an approach that is not limited to the development activities of one system creating enterprise. In fact, many OEMs nowadays demand the contribution of their suppliers towards the continuous modelling of complex systems. Potentials of applying MBSE might vary and are connected to the constraints and resources of the applying company. This leads to different motivations throughout the value chain for applying MBSE. Especially the resulting additional effort gives rise to the question of generated benefits and the ROI of MBSE. While complex system manufacturers are benefiting from the approach through its complexity-grasping basis, suppliers might not benefit from it at all in their own development activities. With this paper the distribution along the value chain is analyzed and it is investigated how to compensate additional effort caused by MBSE for suppliers and SME.
{"title":"MBSE along the Value Chain – An Approach for the Compensation of additional Effort","authors":"F. Wilking, B. Schleich, S. Wartzack","doi":"10.1109/SoSE50414.2020.9130497","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130497","url":null,"abstract":"Model Based System Engineering is an approach that is not limited to the development activities of one system creating enterprise. In fact, many OEMs nowadays demand the contribution of their suppliers towards the continuous modelling of complex systems. Potentials of applying MBSE might vary and are connected to the constraints and resources of the applying company. This leads to different motivations throughout the value chain for applying MBSE. Especially the resulting additional effort gives rise to the question of generated benefits and the ROI of MBSE. While complex system manufacturers are benefiting from the approach through its complexity-grasping basis, suppliers might not benefit from it at all in their own development activities. With this paper the distribution along the value chain is analyzed and it is investigated how to compensate additional effort caused by MBSE for suppliers and SME.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124912511","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 : 2020-06-01DOI: 10.1109/SoSE50414.2020.9130424
Wei Quan, Haibin Zhang, N. Kubota
Eldercare is one of the most important healthcare concerns, particularly in countries whose populations are rapidly aging. Moreover, Globally the population of elderly people living alone is rising with an increasing number of people living with dementias. This paper proposes a health promotion system by using ball robot to motivate exercising for the elderly. Specifically, we use perceptual system of evolutionary robot detection based on fuzzy control. By utilizing the searching information in a limited indoor space, the robot ball can be navigated toward a target direction in real-time. In this paper, we propose a time-series of a searching method based on a steady-state genetic algorithm for visual perception. The search of the multiple robot agent is done by multi-resolution method for decreasing search space. Next, we use relative position distance and radius of the ball robot as inputs to the fuzzy controller. Therefore, we get the output value, speed and direction angle, as robot’s moving command of next state. Experimental results of boccia exercise also show the effectiveness and the practicality of the proposed robot system for typical healthcare services.
{"title":"Elderly Health Promotion using Multiple Ball-robots based on Evolutionary Robot","authors":"Wei Quan, Haibin Zhang, N. Kubota","doi":"10.1109/SoSE50414.2020.9130424","DOIUrl":"https://doi.org/10.1109/SoSE50414.2020.9130424","url":null,"abstract":"Eldercare is one of the most important healthcare concerns, particularly in countries whose populations are rapidly aging. Moreover, Globally the population of elderly people living alone is rising with an increasing number of people living with dementias. This paper proposes a health promotion system by using ball robot to motivate exercising for the elderly. Specifically, we use perceptual system of evolutionary robot detection based on fuzzy control. By utilizing the searching information in a limited indoor space, the robot ball can be navigated toward a target direction in real-time. In this paper, we propose a time-series of a searching method based on a steady-state genetic algorithm for visual perception. The search of the multiple robot agent is done by multi-resolution method for decreasing search space. Next, we use relative position distance and radius of the ball robot as inputs to the fuzzy controller. Therefore, we get the output value, speed and direction angle, as robot’s moving command of next state. Experimental results of boccia exercise also show the effectiveness and the practicality of the proposed robot system for typical healthcare services.","PeriodicalId":121664,"journal":{"name":"2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114728721","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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