Browsing Faculty of Engineering by Author "(ORCID 0000-0002-6159-0484 & YÖK ID 43541) Arı, İsmail"
Now showing items 21-36 of 36
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Observing interoperability of IoT systems through model-based testing
İnçki, Koray; Arı, İsmail (Springer Nature, 2018)Internet of Things (IoT) has drastically modified the industrial services provided through autonomous machine-to-machine interactions. Such systems comprise of devices manufactured by various suppliers. Verification is a ... -
Online association rule mining over fast data
Ölmezoğulları, Erdi; Arı, İsmail (IEEE, 2013)To extract useful and actionable information in real-time, the information technology (IT) world is coping with big data problems today. In this paper, we present implementation details and performance results of ReCEPtor, ... -
Optimizing complex sequence pattern extraction using caching
Ray, M.; Lui, M.; Rundensteiner, E.; Dougherty, D. J.; Gupta, C.; Wang, S.; Mehta, A.; Arı, İsmail (IEEE, 2011)Complex Event Processing (CEP) has become increasingly important for tracking and monitoring complex event anomalies and trends in event streams emitted from business processes such as supply chain management to online ... -
Öbekleme eniyilemesi ve sağlamlığı için yinelemeli bir yaklaşım
Gümüş, H.; Korkmaz Özay, E.; Arı, İsmail; Çataltepe, Z. (IEEE, 2012)Clustering is a common technique, in all areas where information is obtained from the collected data. In this work, three well-known clustering algorithms namely, K-means, Spectral and DBSCAN are investigated in terms of ... -
Processing nested complex sequence pattern queries over event streams
Liu, M.; Ray, M.; Rundensteiner, E. A.; Dougherty, D. J.; Gupta, C.; Wang, S.; Arı, İsmail; Mehta, A. (ACM, 2010)Complex event processing (CEP) has become increasingly important for tracking and monitoring applications ranging from healthcare, supply chain management to surveillance. These monitoring applications submit complex event ... -
Rafinerilerdeki büyük veri problemlerine gerçek-zamanlı veri uzlaştırma çözümleri
Bakır, M.; Aydoğan, B.; Aydın, M.; Khodabakhsh, Athar; Arı, İsmail; Ercan, Ali Özer (IEEE, 2014)Rafineriler tonlarca ham petrolün, her gün faklı kimyasal işlemden geçirilerek benzine ve diğer yan ürünlere dönüştürüldüğü dev endüstriyel tesislerdir. Bu makalede sensör-tabanlı petrol rafinelerine özel endüstriyel büyük ... -
Realtime healthcare services via nested complex event processing technology
Liu, M.; Ray, M.; Zhang, D.; Rundensteiner, E.; Dougherty, D. J.; Gupta, C.; Wang, S.; Arı, İsmail (The ACM Digital Library, 2012)Complex Event Processing (CEP) over event streams has become increasingly important for real-time applications ranging from healthcare to supply chain management. In such applications, arbitrarily complex sequence patterns ... -
Remote dbugging for containerized applications in edge computing environments
Özcan, M. O.; Odacı, F.; Arı, İsmail (IEEE, 2019)Edge Computing (EC) became popular again with the rise of IoT, Cloud Computing, and Industry 4.0. In this paper, difficulties of application development in the EC environment are discussed and a container-based solution ... -
Runtime verification of Iot systems using complex event processing
İnçki, Koray; Arı, İsmail; Sözer, Hasan (IEEE, 2017)Internet of Things (IoT) is a new computing paradigm that is proliferated by wide adoption of application level protocols such as MQTT and CoAP, each of which defines different styles of sequential interaction of events. ... -
Smart job scheduling for high-performance cloud computing services
Muhtaroğlu, Nitel; Arı, İsmail (Civil-comp, 2011-01)In this paper, we describe the challenges faced and lessons learned while establishing a large-scale high performance cloud computing service that enables online mechanical structural analysis and many other scientific ... -
Stream analytics and adaptive windows for operational mode identification of time-varying industrial systems
Khodabakhsh, Athar; Arı, İsmail; Bakır, M.; Alagoz, S. M. (IEEE, 2018-09-07)It is necessary to develop accurate, yet simple and efficient models that can be used with high-speed industrial data streams. In this paper, we develop a mode identification technique using stream analytics and show that ... -
A survey of software testing in the cloud
İnçki, Koray; Arı, İsmail; Sözer, Hasan (IEEE, 2012)Cloud computing has emerged as a new computing paradigm that impacts several different research fields, including software testing. Testing cloud applications has its own peculiarities that demand for novel testing methods ... -
Testing performance of application containers in the cloud with hpc loads
Muhtaroglu, Nitel; Kolcu, Birkan; Arı, İsmail (Civil-Comp, 2017)In this paper, we evaluate HPC application deployment using container technology and examine performance metrics on a public cloud. The research focuses on the ease of deployment, performance and isolation issues related ... -
Towards automatic selection of direct vs. iterative solvers for cloud-based finite element analysis
Muhtaroğlu, N.; Arı, İsmail; Koyun, E. (Civil-Comp, 2015)The new trend in engineering is to solve complex computational problems in the cloud using high performance computing (HPC) services provided by different vendors. In this paper, we compare performances of direct vs. ... -
Towards low cost and smart load testing as a service using containers
Baransel, Berrak Alara; Peker, Alper; Balkıs, Hilmi Ömer; Arı, İsmail (Springer, 2021)Providing end-users with high quality e-commerce, online communication, education services requires careful performance monitoring, tuning and prediction under heavy traffic loads. To address this issue, we propose and ... -
Yüksek-ölçekli mobil iletişim verilerinin açık-kaynak hadoop çerçevesi kullanılarak paralel ve iş-hatlı işlenmesi
Koca, Melih; Arı, İsmail; Koçak, Uğur; Çalıkuş, O.; Sezgin, C. (IEEE, 2012)The fast increase in mobile device and bandwidth usage is generating big workloads on the IT infrastructures of mobile service providers and increasing management costs. These providers collect log files continuously and ...
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