{"title":"QoS-Aware Multi-armed Bandits","authors":"Lenz Belzner, Thomas Gabor","doi":"10.1109/FAS-W.2016.36","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.36","url":null,"abstract":"Motivated by runtime verification of QoS requirements in self-adaptive and self-organizing systems that are able to reconfigure their structure and behavior in response to runtime data, we propose a QoS-aware variant of Thompson sampling for multi-armed bandits. It is applicable in settings where QoS satisfaction of an arm has to be ensured with high confidence efficiently, rather than finding the optimal arm while minimizing regret. Preliminary experimental results encourage further research in the field of QoS-aware decision making.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127636810","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}
Omar Behadada, M. Trovati, Amine Chikh, N. Bessis, Ioannis Korkontzelos
{"title":"Logistic Regression Multinomial for Arrhythmia Detection","authors":"Omar Behadada, M. Trovati, Amine Chikh, N. Bessis, Ioannis Korkontzelos","doi":"10.1109/FAS-W.2016.39","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.39","url":null,"abstract":"In this paper, we introduce a method based on logistics Regression multi-class as a classifier to provide a powerful and accurate insight into cardiac arrhythmia. As suggested by our evaluation, this provide a robust, scalable, and accurate system, which can successfully tackle the challenges posed by the utilization of big data in the medical sector.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130531886","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}
{"title":"Emergent Communities in Socio-cognitive Networks","authors":"V. Danos, Ricardo Honorato-Zimmer","doi":"10.1109/FAS-W.2016.19","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.19","url":null,"abstract":"We investigate a recent network model which combines social and cognitive features. Each node in the social network holds a (possibly different) cognitive network that represent its beliefs. In this internal cognitive network a node denotes a concept and a link indicates whether the two linked concepts are taken to be of a similar or opposite nature. We show how these networks naturally organise into communities and use this to develop a method that detects communities in social networks. How they organise depends on the social structure and the ratio between the cognitive and social forces driving the propagation of beliefs.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130436251","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}
Dominik Klumpp, Axel Habermaier, Benedikt Eberhardinger, H. Seebach
{"title":"Optimising Runtime Safety Analysis Efficiency for Self-Organising Systems","authors":"Dominik Klumpp, Axel Habermaier, Benedikt Eberhardinger, H. Seebach","doi":"10.1109/FAS-W.2016.37","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.37","url":null,"abstract":"Self-organising resource-flow systems typically havea high tolerance for component faults: When a component fails, the system can use another component of the same type instead. However, this redundancy is eventually exhausted: If enoughcomponents fail, they can no longer be replaced and the systemceases to function. An analysis of these self-organisation limitsis essential to assess the system's safety but difficult to performat design time because the system's structure and behaviour arehard to predict. By contrast, runtime analyses are subject to highperformance demands. This paper presents several techniquesthat significantly reduce analysis time in order to facilitate safetyanalyses at runtime. We model a self-organising system producingpersonalised medicine and use it to evaluate these techniques.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121227599","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}
Amardeep Mehta, William Tarneberg, C. Klein, Johan Tordsson, M. Kihl, E. Elmroth
{"title":"How Beneficial Are Intermediate Layer Data Centers in Mobile Edge Networks?","authors":"Amardeep Mehta, William Tarneberg, C. Klein, Johan Tordsson, M. Kihl, E. Elmroth","doi":"10.1109/FAS-W.2016.55","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.55","url":null,"abstract":"To reduce the congestion due to the future bandwidth-hungry applications in domains such as Health care, Internet of Things (IoT), etc., we study the benefit of introducing additional Data Centers (DCs) closer to the network edge for the optimal application placement. Our study shows that the edge layer DCs in a Mobile Edge Network (MEN) infrastructure is cost beneficial for the bandwidth-hungry applications having their strong demand locality and in the scenarios where large capacity is deployed at the edge layer DCs. The cost savings for such applications can go up to 67%. Additional intermediate layer DCs close to the root DC can be marginally cost beneficial for the compute intensive applications with medium or low demand locality. Hence, a Telecom Network Operator should start building an edge DC first having capacity up to hundreds of servers at the network edge to cater the emerging bandwidth-hungry applications and to minimize its operational cost.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126192677","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}
Jonathan Ah Sue, R. Hasholzner, J. Brendel, M. Kleinsteuber, Jürgen Teich
{"title":"A Binary Time Series Model of LTE Scheduling for Machine Learning Prediction","authors":"Jonathan Ah Sue, R. Hasholzner, J. Brendel, M. Kleinsteuber, Jürgen Teich","doi":"10.1109/FAS-W.2016.64","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.64","url":null,"abstract":"In today's Third-Generation Partnership Project (3GPP) Long-Term Evolution Advanced (LTE-A) cellular radio networks, battery lifetime is critical for mobile devices. During time intervals of no user data transmit or receive activity, energy for receiving and processing irrelevant control information in a mobile device could be saved. Therefore, we propose a binary time series model at 1 ms transmission time interval (TTI) granularity to predict the control channel information. To assess the predictability of the proposed time series, we apply three well-known machine learning (ML) algorithms combined with a non-intrusive cost-sensitive classification (CSC) scheme. Predictions of the proposed time series model successfully reach false negative rates (FNRs) below 2%.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125519946","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}
{"title":"From Institutions to Code: Towards Automated Generation of Smart Contracts","authors":"Christopher K. Frantz, M. Nowostawski","doi":"10.1109/FAS-W.2016.53","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.53","url":null,"abstract":"Blockchain technology has emerged as a solution to consistency problems in peer to peer networks. By now, it has matured as a solution to a range of use cases in which it can effectively provide the notion of third party trust without the need for a trusted (physical) third party, which makes it an attractive coordination mechanism for distributed systems. To promote the wide adoption of this technology, we yet lack mechanisms that make the specification and interpretation of smart contracts accessible to a broader audience. In this work, we propose a modeling approach that supports the semi-automated translation of human-readable contract representations into computational equivalents in order to enable the codification of laws into verifiable and enforceable computational structures that reside within a public blockchain. We identify smart contract components that correspond to real world institutions, and propose a mapping that we operationalize using a domain-specific language in order to support the contract modeling process. We explore this capability based on selected examples and plot out directions for future research on smart contracts.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133981701","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}
Mathias Santos de Brito, S. Hoque, Ronald Steinke, A. Willner
{"title":"Towards Programmable Fog Nodes in Smart Factories","authors":"Mathias Santos de Brito, S. Hoque, Ronald Steinke, A. Willner","doi":"10.1109/FAS-W.2016.57","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.57","url":null,"abstract":"Starting with the invention of the steam engine in the 18th century, the industrial revolutions formed an ecosystem of over 20 billion connected devices with unforeseeable influence to the Gross Domestic Product (GDP). Predictions are that, by 2020 the connectable assets will generate about 44 ZB of data, which pose interesting challenges related to privacy, connectivity, scalability and others. A current line of action is the development of Cyber-Physical Systems (CPSs), which can be monitored and controlled by private clouds or edge systems. Our approach is to bring functionalities, such as analytics, as close to the devices as possible (denoted as Fog Computing) to reduce latency and enhance data privacy and communication robustness. As a starting point we're extending a standard-compliant Machine-To-Machine Communication (M2M) architecture with container based orchestration mechanisms to enable CPSs to be programmable, autonomous and to communicate peer-to-peer. As the main field of application we are considering in particular smart factory environments and Industrial Internet domains in general.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115806041","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}
{"title":"Improving the Performance of Lustre File System in HPC Environments","authors":"Jaehyun Han, Deoksang Kim, Hyeonsang Eom","doi":"10.1109/FAS-W.2016.29","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.29","url":null,"abstract":"As more and more data is being processed in High Performance Computing (HPC) systems scaling up in terms of the processing power and the amount of data to process, slow I/O can become a major performance bottleneck. Therefore, HPC systems usually use distributed parallel file systems which can lead to high I/O performance. However, it is still possible to enhance the performance of distributed parallel file systems by tuning the parameters or choosing the best configurations. To improve the performance of distributed parallel file systems, we first analyzed and compared the major ones being widely used in HPC environments. Then we focused on the Lustre file system for a further analysis because Lustre is one of the major ones due to its high performance. We evaluated Lustre in the direct I/O mode with various configurations and different parameter settings. Our experimental study suggests that we can obtain up to 114% performance improvements by modifying the numbers of Portal RPC threads in the OSS (Object Storage Server) and client.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122094555","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}
Johannes Klinglmayr, Bernhard Bergmair, Evangelos Pournaras
{"title":"Sustainable Consumerism via Self-Regulation","authors":"Johannes Klinglmayr, Bernhard Bergmair, Evangelos Pournaras","doi":"10.1109/FAS-W.2016.40","DOIUrl":"https://doi.org/10.1109/FAS-W.2016.40","url":null,"abstract":"We are living in a world of vast information. The means of the Internet allow access to diverse sources of information, with social media and Internet of Things technologies significantly expanding the informational ecosystem. With the use of social media it is easy for 'like-minded' people to group up and initiate movements. One way to articulate such movements is via political consumerism. Users group together and boycot or buycot (boost purchases) for certain products with a concrete collective goal in mind. If however the collective goal is vague and abstract, as in the case of sustainability, this bottom-up strategy may loose its popularity and attraction. In this paper we introduce a new concept of how individual consumers can follow their own understanding of sustainability, while at the same time benefiting from collective and participatory actions. We discuss how the means of ICT can be used to develop political consumerism further to transform individual policies into collective statements.","PeriodicalId":382778,"journal":{"name":"2016 IEEE 1st International Workshops on Foundations and Applications of Self* Systems (FAS*W)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128502305","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}