Browsing Computer Science by OzU Authors "Arı, İsmail"
Now showing items 1-20 of 35
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Büyük veri problemlerine çözüm olarak veri akış madenciliği
Ölmezoğulları, Erdi; Arı, İsmail; Çelebi, Ö. F.; Ergüt, S. (IEEE, 2013)Günümüzde bilişim dünyası faydalı bilgiye ulaşma yolunda “büyük veri” problemleri (verinin kütlesi, hızı, çeşitliliği, tutarsızlığı) ile baş etmeye çalışmaktadır. Bu makalede, büyük veri akışları üzerinde İlişkisel Kural ... -
Data stream analytics and mining in the cloud
Arı, İsmail; Ölmezoğulları, Erdi; Çelebi, Ö. F. (IEEE, 2012)Due to prevalent use of sensors and network monitoring tools, big volumes of data or “big data” today traverse the enterprise data processing pipelines in a streaming fashion. While some companies prefer to deploy their ... -
Democratization of HPC cloud services with automated parallel solvers and application containers
Muhtaroğlu, Nitel; Arı, İsmail; Kolcu, Birkan (Wiley, 2018-11-10)In this paper, we investigate several design choices for HPC services at different layers of the cloud computing architecture to simplify and broaden its use cases. We start with the platform-as-a-service (PaaS) layer and ... -
Democratization of runtime verification for internet of things
İnçki, Koray; Arı, İsmail (Elsevier, 2018-05)Internet of Things (IoT) devices have gained more prevalence in ambient assisted living (AAL) systems. Reliability of AAL systems is critical especially in assuring the safety and well-being of elderly people. Runtime ... -
Design and implementation of a cloud computing service for finite element analysis
Arı, İsmail; Muhtaroğlu, Nitel (Elsevier, 2013-06)This paper presents an end-to-end discussion on the technical issues related to the design and implementation of a new cloud computing service for finite element analysis (FEA). The focus is specifically on performance ... -
E-Cube: multi-dimensional event sequence analysis using hierarchical pattern query sharing
Liu, M.; Rundensteiner, E.; Greenfield, K.; Gupta, C.; Wang, S.; Arı, İsmail; Mehta, A. (ACM, 2011-06-12)Many modern applications, including online financial feeds, tag-based mass transit systems and RFID-based supply chain management systems transmit real-time data streams. There is a need for event stream processing technology ... -
E-Cube: multi-dimensional event sequence processing using concept and pattern hierarchies
Liu, M.; Rundensteiner, E. A.; Greenfield, K.; Gupta, C.; Wang, S.; Arı, İsmail; Mehta, A. (IEEE, 2010)Many modern applications including tag based mass transit systems, RFID-based supply chain management systems and online financial feeds require special purpose event stream processing technology to analyze vast amounts ... -
Finding event correlations in federated wireless sensor networks
Arı, İsmail; Çelebi, Ömer Faruk (IEEE, 2011)Event correlation engines help us find events of interest inside raw sensor data streams and help reduce the data volume, simultaneously. This paper discusses some of the challenges faced in finding event correlations over ... -
Finecloud: Fine-grained cloud service advisory using machine learning
Orhun, Yasemin; İstanbullu, Yiğit; Arı, İsmail (IEEE, 2022)Motivated by real customer problems, we investigated utilization of cloud services at different layers including infrastructure (IaaS), application services (PaaS) and databases (DaaS). We found several issues such as ... -
Forecasting multivariate time-series data using LSTM and mini-batches
Khodabakhsh, Athar; Arı, İsmail; Bakır, M.; Alagoz, S. M. (Springer, 2020)Multivariate time-series data forecasting is a challenging task due to nonlinear interdependencies in complex industrial systems. It is crucial to model these dependencies automatically using the ability of neural networks ... -
High-performance complex event processing using continuous sliding views
Ray, M.; Rundensteiner, E. A.; Liu, M.; Gupta, C.; Wang, S.; Arı, İsmail (ACM, 2013)Complex Event Processing (CEP) has become increasingly important for tracking and monitoring anomalies and trends in event streams emitted from business processes such as supply chain management to online stores in e-commerce. ... -
High-performance nested CEP query processing over event streams
Liu, M.; Rundensteiner, E.; Dougherty, D.; Gupta, C.; Wang, S.; Arı, İsmail; Mehta, A. (IEEE, 2011)Complex event processing (CEP) over event streams has become increasingly important for real-time applications ranging from health care, supply chain management to business intelligence. These monitoring applications submit ... -
Hybrid job scheduling for improved cluster utilization
Arı, İsmail; Kocak, Uğur (Springer Science+Business Media, 2014)In this paper, we investigate the models and issues as well as performance benefits of hybrid job scheduling over shared physical clusters. Clustering technologies that are currently supported include MPI, Hadoop-MapReduce ... -
Kombi̇natoryal test tekni̇kleri̇ni̇n karmaşık olay i̇şleme motorlarında uygulanması
Arı, İsmail; Ölmezoğulları, Erdi; Sözer, Hasan (IEEE, 2012)Testing practice has a critical place during the design, implementation and integration of software, hardware and complex systems composed of these. Cost of failures caused by bugs that could not be detected and fixed early ... -
MaLeFICE: Machine learning support for continuous performance improvement in computational engineering
Sönmezer, Hasan Berk; Muhtaroğlu, Nitel; Arı, İsmail; Gökçin, Deniz (Wiley, 2022-04-25)Computer aided engineering (CAE) practices improved drastically within the last decade due to ease of access to computing resources and open-source software. However, increasing complexity of hardware and software settings ... -
Model-based runtime monitoring of smart city systems
İnçki, Koray; Arı, İsmail (Elsevier, 2018)The pace of proliferation for smart systems in city wide applications is unmatched. The introduction of Internet of Things (IoT), an enabler of smart city phenomenon, has incubated a productive environment for such ... -
Multivariate sensor data analysis for oil refineries and multi-mode identification of system behavior in real-time
Khodabakhsh, Athar; Arı, İsmail; Bakır, M.; Ercan, Ali Özer (IEEE, 2018)Large-scale oil refineries are equipped with mission-critical heavy machinery (boilers, engines, turbines, and so on) and are continuously monitored by thousands of sensors for process efficiency, environmental safety, and ... -
NEEL: The nested complex event language for real-time event analytics
Liu, M.; Rundensteiner, E. A.; Dougherty, D.; Gupta, C.; Wang, S.; Arı, İsmail; Mehta, A. (Springer International Publishing, 2011)Complex event processing (CEP) over event streams has become increasingly important for real-time applications ranging from health care, supply chain management to business intelligence. These monitoring applications submit ... -
A novel runtime verification solution for LoT systems
İnçki, Koray; Arı, İsmail (IEEE, 2018)Internet of Things (IoT) systems promise a seamless connected world with machines integrating their services without human intervention. It's highly probable that the entities participating in such autonomous machine to ...
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