Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems最新文献_第4页

Venilia, On-line Learning and Prediction of Vessel Destination Venilia，船舶目的地在线学习与预测

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3220505

Moti Bachar, Gal Elimelech, Itai Gat, Gil Sobol, Nicolo Rivetti, A. Gal

引用次数: 2

Buffer Provisioning for Large-Scale Data-Acquisition Systems 大规模数据采集系统的缓冲区配置

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3210288

Alejandro Santos, W. Vandelli, P. García, H. Fröning

{"title":"Buffer Provisioning for Large-Scale Data-Acquisition Systems","authors":"Alejandro Santos, W. Vandelli, P. García, H. Fröning","doi":"10.1145/3210284.3210288","DOIUrl":"https://doi.org/10.1145/3210284.3210288","url":null,"abstract":"The data acquisition system of the ATLAS experiment, a major experiment of the Large Hadron Collider (LHC) at CERN, will go through a major upgrade in the next decade. The upgrade is driven by experimental physics requirements, calling for increased data rates on the order of 6 TB/s. By contrast, the data rate of the existing system is 160 GB/s. Among the changes in the upgraded system will be a very large buffer with a projected size on the order of 70 PB. The buffer role will be decoupling of data production from on-line data processing, storing data for periods of up to 24 hours until it can be analyzed by the event processing system. The larger buffer will allow a new data recording strategy, providing additional margins to handle variable data rates. At the same time it will provide sensible trade-offs between buffering space and on-line processing capabilities. This compromise between two resources will be possible since the data production cycle includes time periods where the experiment will not produce data. In this paper we analyze the consequences of such trade-offs, and introduce a tool that allows a detailed exploration of different strategies for resource provisioning. It is based on a model of the upgraded data acquisition system, implemented in a simulation framework. From this model it is possible to obtain insight into the dynamics of the running system. Given predefined resource constraints, we provide bounds for the provisioning of buffering space and on-line processing requirements.","PeriodicalId":412438,"journal":{"name":"Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130783001","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}

引用次数: 0

A Platform for Choreography of Heterogeneous Healthcare Services 异构医疗服务编排平台

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3219771

Wonjae Kim, Young Yoon

引用次数: 0

Secret Sharing in Pub/Sub Using Trusted Execution Environments 基于可信执行环境的Pub/Sub秘密共享

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3210290

Javier Munster, H. Jacobsen

{"title":"Secret Sharing in Pub/Sub Using Trusted Execution Environments","authors":"Javier Munster, H. Jacobsen","doi":"10.1145/3210284.3210290","DOIUrl":"https://doi.org/10.1145/3210284.3210290","url":null,"abstract":"An essential security concern in the publish/subscribe paradigm is that of guaranteeing the confidentiality of the data being transmitted. Existing solutions require that some initial parameters, keys or secrets be exchanged or otherwise established between communicating entities before secure end-to-end communication can occur. Most existing solutions in the literature either weaken the desirable decoupling properties of pub/sub or rely on a completely trusted out-of-band service to disseminate these values. This problem can be avoided through the use of Shamir's secret sharing scheme, at the cost of a prohibitively large number of messages, scaling exponentially with the path length between publisher and subscriber. Intel's Software Guard Extensions (SGX) offers trusted execution environments to shield application data from untrusted software running at a higher privilege level. Unfortunately, SGX requires the use of Intel's proprietary hardware and architecture. We mitigate these problems through HyShare, a hybrid broker network used for the purposes of sharing a secret between communicating publishers and subscribers. The broker network is composed of regular brokers that use Shamir's secret sharing scheme and brokers with SGX to reduce the overall number of messages needed to share a secret. By fine tuning the combination of these brokers, it is possible to strike a balance between network resource use and hardware heterogeneity.","PeriodicalId":412438,"journal":{"name":"Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133962902","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}

引用次数: 2

Log Pruning in Distributed Event-sourced Systems 分布式事件源系统中的日志修剪

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3219767

Benjamin Erb, Dominik Meißner, Ferdinand Ogger, F. Kargl

引用次数: 4

FogStore

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3210297

H. Gupta, U. Ramachandran

{"title":"FogStore","authors":"H. Gupta, U. Ramachandran","doi":"10.1145/3210284.3210297","DOIUrl":"https://doi.org/10.1145/3210284.3210297","url":null,"abstract":"We design Fogstore, a key-value store for event-based systems, that exploits the concept of relevance to guarantee low-latency access to relevant data with strong consistency guarantees, while providing tolerance from geographically correlated failures. Distributed event-based processing pipelines are envisioned to utilize the resources of densely geo-distributed infrastructures for low-latency responses - enabling real-time applications. Increasing complexity of such applications results in higher dependence on state, which has driven the incorporation of state-management as a core functionality of contemporary stream processing engines a la Apache Flink and Samza. Processing components executing under the same context (like location) often produce information that may be relevant to others, thereby necessitating shared state and an out-of-band globally-accessible data-store. Efficient access to application state is critical for overall performance, thus centralized data-stores are not a viable option due to the high-latency of network traversals. On the other hand, a highly geo-distributed datastore with low-latency implemented with current key-value stores would necessitate degrading client expectation of consistency as per the PACELC theorem. In this paper we exploit the notion of contextual relevance of events (data) in situation-awareness applications - and offer differential consistency guarantees for clients based on their context. We highlight important systems concerns that may arise with a highly geo-distributed system and show how Fogstore's design tackles them. We present, in detail, a prototype implementation of Fogstore's mechanisms on Apache Cassandra and a performance evaluation. Our evaluations show that Fogstore is able to achieve the throughput of eventually consistent configurations while serving data with strong consistency to the contextually relevant clients.","PeriodicalId":412438,"journal":{"name":"Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems","volume":"245 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121704186","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}

引用次数: 43

New Challenges and Opportunities in Stream Processing: Transactions, Predictive Analytics, and Beyond: (Invited Keynote) 流处理的新挑战与机遇:交易、预测分析及其他:(特邀主题演讲)

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3214706

Nesime Tatbul

{"title":"New Challenges and Opportunities in Stream Processing: Transactions, Predictive Analytics, and Beyond: (Invited Keynote)","authors":"Nesime Tatbul","doi":"10.1145/3210284.3214706","DOIUrl":"https://doi.org/10.1145/3210284.3214706","url":null,"abstract":"EXTENDED ABSTRACT Stream processing has been an area of ongoing research since the early 2000s. Fueled by industry’s growing interest in dealing with high-velocity big data in near real-time settings, there has been a resurgence of recent activity in both research and engineering of large-scale stream processing systems. In this talk, we will examine the state of the art, focusing in particular on key trends of the past five years with an outlook towards the next five years. I will also give examples from our own work, including stream processing in transactional settings as well as predictive time series analytics for the Internet of Things. Transactional stream processing broadly refers to processing streaming data with correctness guarantees. These guarantees include not only properties that are intrinsic to stream processing (e.g., order, exactly-once semantics), but also ACID properties of traditional OLTP-oriented databases, which arise in streaming applications with shared mutable state. In our recent work, we have designed and built the S-Store System, a scalable main-memory system that supports hybrid OLTP+streaming workloads with strict correctness needs [5]. A use case that best exemplifies the strengths of S-Store is real-time data ingestion [4]. Thus, I will also discuss the requirements of modern data ingestion and how to meet them using S-Store, especially within the context of our BigDAWG Polystore System [1, 6].","PeriodicalId":412438,"journal":{"name":"Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems","volume":"473 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133434680","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}

引用次数: 0

Moscato 麝香葡萄

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3219772

Yongjun Choi, Young Yoon

引用次数: 1

Multimodal Complex Event Processing on Mobile Devices 移动设备上的多模式复杂事件处理

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3210289

Pablo Graubner, Christoph Thelen, Michael Körber, Artur Sterz, G. Salvaneschi, M. Mezini, B. Seeger, Bernd Freisleben

{"title":"Multimodal Complex Event Processing on Mobile Devices","authors":"Pablo Graubner, Christoph Thelen, Michael Körber, Artur Sterz, G. Salvaneschi, M. Mezini, B. Seeger, Bernd Freisleben","doi":"10.1145/3210284.3210289","DOIUrl":"https://doi.org/10.1145/3210284.3210289","url":null,"abstract":"Mobile devices are increasingly being used in edge and fog computing environments to process contextual data collected by sensors. Although complex event processing (CEP) is a suitable approach for realizing context-aware services on mobile devices in these environments, existing mobile CEP engines do not leverage the full potential of modern mobile hardware/software architectures. In this paper, we present multimodal CEP, a novel approach to process streams of events on-device in user space (user mode), in the operating system (kernel mode), on the Wi-Fi chip (Wi-Fi mode), and/or on a sensor hub (hub mode), providing significant improvements in terms of power consumption and throughput. Multimodal CEP automatically breaks up CEP queries and selects the most adequate execution mode for the involved CEP operators. Filter, aggregation, and correlation operators can be expressed in a high-level language without requiring system-level domain-specific knowledge. Multimodal CEP enables developers to efficiently detect user activities, collect environmental conditions, or interpret operating system and network events. Furthermore, it facilitates novel context-aware services, demonstrated by a use case for gathering and analyzing mobility data by Wi-Fi probe request tracking.","PeriodicalId":412438,"journal":{"name":"Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122226928","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}

引用次数: 10

Vessel Destination and Arrival Time Prediction with Sequence-to-Sequence Models over Spatial Grid 空间网格上序列对序列模型的船舶目的地和到达时间预测

Proceedings of the 12th ACM International Conference on Distributed and Event-based Systems Pub Date : 2018-06-25 DOI: 10.1145/3210284.3220507

Duc-Duy Nguyen, Chan Le Van, M. Ali

引用次数: 6