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We consider the $(n,k,d,\ell )$ secure exact-repair regenerating code problem, which generalizes the $(n,k,d)$ exact-repair regenerating code problem with the additional constraint that the stored file needs to be kept information-theoretically secure against an eavesdropper, who can access the data transmitted to regenerate a total of $\ell $ different failed nodes. For all known results on...
Attempting to avoid severe malfunction, save cost and reduce risk which could lead to serious impact on an operating subway system, applying proper maintenance modes would be critical for all installed equipment. Literature review about maintenance strategy shows that application of Data Mining algorithm and computer assisting system would be a good way for improving maintenance efficiency. The article...
Pebble game rigidity analysis is a combinatorial method, implemented in our free web server KinariWeb, for extracting protein rigidity and flexibility information without performing costly molecular dynamics simulations. Due to the idiosynchrasies of the data in the Protein Data Bank (PDB), Kinari succeeds only on a fraction of the available files. Motivated by large scale applications, aiming at...
The domain of Automatic Program Repair (APR) had many research contributions in recent years. So far, most approaches target fixing generic bugs in programs (e.g., off-by-one errors). Nevertheless, recent studies reveal that about 50% of real bugs require API-specific fixes (e.g., adding missing API method calls or correcting method ordering), for which existing APR approaches are not designed. In...
This research focuses on analyzing and improving maintenance process by exploring novel applications of process mining and predictive analytics. We analyze the software maintenance process by applying process mining on software repositories, and address the identified inefficiencies using predictive analytics. To drive our research, we engage with practitioners from large, global IT companies and...
Since computing infrastructure has intrinsically a redundant logic, budget saving practices or understaffing of IT departments lead to an “emergency room” service paradigm. However, a treasure of information that could facilitate preemptive maintenance is buried in the logs and messages that are automatically generated by regular processes. Such information is typically ignored because of the shear...
Refactoring is widely used technique to enhance overall quality of an existing software system by changing its internal structure without modifying its external behavior. Although, it is difficult to implement the refactoring manually, it helps to reduce the defects in the existing software. Three main types of design defects are investigated in the current study namely blob, Spaghetti Code (SC) and...
The system from the point of view, follows the principles of the software engineering of. Net framework and ASP web design technology, data mining technology, the XML data description and manipulation techniques in legal business training system application, using the prototype method and object-oriented system analysis method, a comprehensive analysis of the legal practice teaching business functional...
The efficiency of current aero-engine remaining life prediction methods has room for improvement. This paper focuses on analysis of aero-engine exhaust gas temperature margin (EGTM) time-series data and introduces a pattern mining method of aero-engine performance degradation based on Empirical Mode Decomposition (EMD) and k-nearest neighbors optimized clustering by fast search and find of density...
One of the most common causes of bugs is overlooking changes. To prevent bugs and improve the quality of the products, numerous studies have been undertaken on change guides based on logical couplings extracted from developers' past process histories, such as change history. While valuable change rules based on logical couplings can be gleaned found from the change history, these rules often fail...
The Internet of Things concept is increasingly being used in projects from different areas. Often, projects encompass applications from different domains that need to share information for a common purpose. These types of systems can become complex because they involve different domains and it can be difficult to share information without misinterpreting certain information. Ontologies can be a way...
For Industry 4.0 technology as well as Cyber-Physical Production Systems analysis of data gained more and more importance. But the disparity of data, often make the efficient use of data mining methods difficult due to data with poor quality. To evaluate data quality and further adopt appropriate measures, the proposal develops a data quality model fitted to the specific properties of signal data...
Software repositories contain a lot of information that can be transformed into suggestions other files they need to modify during maintenance tasks (so-called "coupled changes"). Existing studies however ignore developer feedback and their influence on the developer strategy for getting help during maintenance tasks. We used the Grounded Theory approach to investigate screen capture videos...
We consider the {n, k, d, l) secure exact-repair regenerating code problem, which generalizes the {n, k, d) exact-repair regenerating code problem with the additional constraint that the stored file needs to be kept information-theoretically secure against an eavesdropper, who can access the data transmitted to regenerate a total of l different failed nodes. For all known results on this problem,...
Cyberspace offers users and information communication systems the opportunity to interact with each other for business. Data, as the carrier of information, represents the processing content of different business work. In order to improve the quality of data, data cleaning plays an important role in various cyberspace scenarios, such as RFID and sensor, ETL process etc. This paper presents a survey...
We demonstrate how the contemporary problems of data acquisition for dblp can be tackled with OXPath. It enables web data extraction and wrapper maintenance for heterogeneous data sources on a simple declarative level. Its features render it a feasible instrument to retrieve the varying and changing web representations of the prototypical substructures in the bibliographic domain.
On the way to full production control, wire bonding equipment requires data-driven condition-based maintenance of the mechanical setup. In this paper, we identify aspects of regular mechanical equipment setups that severely affect bonding quality and equipment health in mass production. We show that mechanical equipment setups lower process stability in aluminum wire bonding. Typical faults in mechanical...
A main difficulty to study the evolution and quality of real-life software systems is the effect of moderator factors, such as: programming skill, type of maintenance task, and learning effect. Experimenters must account for moderator factors to identify the relationships between the variables of interest. In practice, controlling for moderator factors in realistic (industrial) settings is expensive...
Web data acquisition is the foundation of Web data mining. Web crawler is an important tool for Web data acquisition, but the frequent updates of Web data structures, data sources and distribution channels, resulted in high costs of crawler program development and maintenance. In order to solve this problem, this paper designed and implemented an intelligent dynamic crawler, which stored the data...
Build systems are an essential part of modern software engineering projects. As software projects change continuously, it is crucial to understand how the build system changes because neglecting its maintenance can lead to expensive build breakage. Recent studies have investigated the (co-)evolution of build configurations and reasons for build breakage, but they did this only on a coarse grained...
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