Browsing by Author "Sözer, Hasan"
Now showing items 41-60 of 117
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Evaluating software architecture erosion for PL/SQL programs
Altınışık, M.; Ersoy, E.; Sözer, Hasan (The ACM Digital Library, 2017)PL/SQL procedures are grouped into packages for providing modularity. These procedures are indirectly coupled due to their use of common database tables. We define a cohesion metric and cluster PL/SQL procedures based on ... -
Evaluating the effectiveness of multi-level greedy modularity clustering for software architecture recovery
Sözer, Hasan (Springer Nature, 2019)Software architecture recovery approaches mainly analyze various types of dependencies among software modules to group them and reason about the high-level structural decomposition of a system. These approaches employ a ... -
Evaluation of distributed machine learning algorithms for anomaly detection from large-scale system logs: a case study
Astekin, M.; Zengin, H.; Sözer, Hasan (IEEE, 2018)Anomaly detection is a valuable feature for detecting and diagnosing faults in large-scale, distributed systems. These systems usually provide tens of millions of lines of logs that can be exploited for this purpose. ... -
Experimental analysis of RF based multi plane diffraction with over the air active cellular signal measurements
Aytekin, Ali (2021-01-13)In our study, mathematical modelling of single-plane diffraction (SPD) and multi-plane diffraction (MPD) architectures based on RF waves is created as theoretical. Free space, SPD and MPD based experimental studies are ... -
Extending static analysis with application-specific rules by analyzing runtime execution traces
Ersoy, Ersin (2016-07)Static code analysis tools can generate alerts regarding only generic issues such as uninitialized variables. They cannot detect violations of application-speci c rules. Tools can be extended with specialized checkers that ... -
Extending static code analysis with application-specific rules by analyzing runtime execution traces
Ersoy, E.; Sözer, Hasan (Springer International Publishing, 2016)Static analysis tools cannot detect violations of application-specific rules. They can be extended with specialized checkers that implement the verification of these rules. However, such rules are usually not documented ... -
FAS: introducing a service for avoiding faults in composite services
Gülcü, K.; Sözer, Hasan; Aktemur, Tankut Barış (Springer Science+Business Media, 2012)In service-oriented architectures, composite services depend on a set of partner services to perform the required tasks. These partner services may become unavailable due to system and/or network faults, leading to an ... -
Fault masking as a service
Gülcü, Koray; Sözer, Hasan; Aktemur, Tankut Barış; Ercan, Ali Özer (Wiley, 2014-07)In SOA, composite services depend on a set of partner services to perform their tasks. These partner services may become unavailable because of system and/or network faults, leading to an increased error rate for the ... -
Fault masking as a service
Gülcü, Koray (2013-01)In service-oriented architectures, composite services depend on a set of partner services to perform their tasks. These partner services may become unavailable due to system and/or network faults, leading to an increased ... -
Feature-based rationale management system for supporting software architecture adaptation
Tekinerdoğan, B.; Sözer, Hasan; Akşit, M. (World Scientific Publishing Co., 2012-11)Each software architecture design is the result of a broad set of design decisions and their justifications, that is, the design rationale. Capturing the design rationale is important for a variety of reasons such as ... -
FORMAT: a tool for adapting test models based on feature models
Ergun, B.; Gebizli, C. Ş.; Sözer, Hasan (IEEE, 2017)We introduce a tool that facilitates the reuse of test models for a family of systems. Test models are defined as hierarchical Markov chains for specifying possible usage of features for these systems. Variability among ... -
Fusion of subjective opinions through behavior estimation
Aycı, Gönül (2016-01)Information is significantly important in almost all decision-making process. A decision- maker agent collects information from diverse sources. Thus, it should correctly fuse opinions, which are shared from different ... -
Geçmişe dönük hata tespit oranlarının zamanla değişen etkisine göre regresyon testlerinin önceliklendirilmesi
Kurt, D.; Sözer, Hasan (CEUR-WS, 2014)Büyük ölçekli yazılım sistemlerinin regresyon testleri masraflıdır. Kaynak kısıtları sebebiyle genellikle tüm test durumlarını değerlendirmek mümkün olmamaktadır. Dolayısıyla, hataları mümkün olan en kısa sürede tespit ... -
Generating runtime verification specifications based on static code analysis alerts
Kılıç, Yunus (2017-12)There are various approaches in order to find bugs in a software system. One of these approaches is static code analysis, which tries to achieve this goal by analyzing code without executing it. Another complementary ... -
Generating runtime verification specifications based on static code analysis alerts
Kılıç, Yunus; Sözer, Hasan (ACM, 2017)Runtime verification techniques verify dynamic system behavior with respect to a set of specifications. These specifications are often created manually based on system requirements and constraints. In this paper, we introduce ... -
Genetic algorithms and heuristics hybridized for software architecture recovery
Elyasi, Milad; Simitcioğlu, Muhammed Esad; Saydemir, Abdullah; Ekici, Ali; Özener, Okan Örsan; Sözer, Hasan (Springer, 2023-06-26)Large scale software systems must be decomposed into modular units to reduce maintenance efforts. Software Architecture Recovery (SAR) approaches have been introduced to analyze dependencies among software modules and ... -
Guiding architects in selecting architectural evolution alternatives
Ciraci, S.; Sözer, Hasan; Aksit, M. (Springer Science+Business Media, 2011)Although there exist methods and tools to support architecture evolution, the derivation and evaluation of alternative evolution paths are realized manually. In this paper, we introduce an approach, where architecture ... -
High-performance low-complexity near-lossless embedded memory compression for HDTV
Palaz, Okan (2014-08)HDTV video işlemcileri çerçeve hızı değiştirme, binişme giderme ve diğer video iyileştirme işlemlerini yapabilmek için, bir ya da daha fazla geçmiş çerçeveyi hafızada tutmak durumundadır. HD çözünürlüklerde sıkıştırılmamış ... -
Human movement recognition with dynamic movement primitives
Pehlivan, Alp Burak (2015-09)Dynamic Movement Primitives (DMPs)-originally a method for movement trajectory generation has been also used for recognition tasks. However there has not been a systematic comparison between other recognition methods and ... -
HYGAR: a hybrid genetic algorithm for software architecture recovery
Elyasi, Milad; Simitcioğlu, Muhammed Esad; Saydemir, Abdullah; Ekici, Ali; Sözer, Hasan (ACM, 2022)Genetic algorithms have been used for clustering modules of a software system in line with the modularity principle. The goal of these algorithms is to recover an architectural view in the form of a modular structural ...
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