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Project is currently carried out to gather reliable data on prevalence of silent atrial fibrillation (AF) in elderly patients. The first phase of the project was focused on inventing the diagnostic instrumentation in a form of wristband monitor, capable of detecting silent AF. The monitor developed at the Institute of Medical Technology and Equipment (ITAM) in Zabrze applies the photoplethysmographic...
Despite being known since a long time, memory violations are still a very important cause of security problems in low-level programming languages containing data parsers. We address this problem by proposing a pragmatic solution to fix not only bugs, but classes of bugs. First, using a fast and safe language such as Rust, and then using a parser combinator. We discuss the advantages and difficulties...
Despite numerous innovative studies, rates of replication in the field of music psychology are extremely low (Frieler et al., 2013). Two key methodological challenges affecting researchers wishing to administer and reproduce studies in music cognition are the difficulty of measuring musical responses, particularly when conducting free-recall studies, and access to a reliable set of novel stimuli unrestricted...
For the security risk caused by foreign products, an aerospace ground automatic test system was designed based on Kylin Operating Systems. Based on the analysis of the work principle of the system, a relevant application testing software by using QT is designed. Methods of “database + binary file” and driver design for the key technologies of fast data storage and data acquisition card are put forward...
Evolving software systems includes data schema changes, and because of those schema changes data has to be converted. Converting data between two different schemas while continuing the operation of the system is a challenge when that system is expected to be available always. Data conversion in event sourced systems introduces new challenges, because of the relative novelty of the event sourcing architectural...
With the rapid development of computer technology, it has been widely used in many fields such as politics, economy, military affairs, culture, and education and so on. The society has entered into the information age with the development of computer and network technologies, however, the security problem of information has become the fundamental mater. As we all know, the basic principle of Von Neumann...
Hadoop is widely used in these days for big data analytics. Docker, a new container technology, is hot nowadays, and is the new QuickStart option for Apache Hadoop. It is a trend to build Hadoop cluster in Docker environments in clouds or clusters. However, how to make better use of hardware resources and improve Hadoop performance in Docker environments is a challenge for users. In this paper we...
Developing new methods to evaluate the software reliability in an early design stage of the system can save the design costs and efforts, and will positively impact the product time-to-market. In this paper, we propose a novel fault injection technique to evaluate the reliability of a computing system running a software at early design stage where the hardware architecture is not completely defined...
The short characteristic of the developed complex of mathematical models of support of stability of functioning of the distributed information systems is this. Results of the experimental check of the developed mathematical models are given. Features of their practical use are given in stages of life cycle of the distributed information systems.
Recent improvements in microelectrodes technology have enabled neuroscientists to record electrophysiological signals from hundreds of neurons and simultaneously from a large number of channels. However, several environmental factors may introduce noise and artefacts and affect proper interpretation of recordings. Thus, the development of appropriate signal acquisition and processing platforms dealing...
The problem of developing software architecture and its platform implementation for scalable cloud services is addressed in the paper. New scheme of distributed software developing and executing is presented with argumentation and main principles behind solution. Performance evaluation of one of the platform components (data storage) is described.
The world is abound with data. Almost every organization has utilized a Database Management System (DBMS) to store and manage the huge amount of data. Problem exists when the ability to leverage the features of the tools has historically fallen to a limited group of experts. This would require formal database design training and cannot be learnt overnight. As such, the problem leads to another issue...
This paper analyzes the trade-offs in architecting stacked DRAM either as part of main memory or as a hardware-managed cache. Using stacked DRAM as part of main memory increases the effective capacity, but obtaining high performance from such a system requires Operating System (OS) support to migrate data at a page-granularity. Using stacked DRAM as a hardware cache has the advantages of being transparent...
Focus on this question of high verification overhead of hash tree memory protection scheme, this paper proposed a hash tree optimize method called AH-Tree. Utilizing the locality character of memory accessing, the memory is divided into two parts and an asymmetric hash tree (AH-Tree) is constructed. The advantage of AH-Tree is low average operation overhead. The analysis and experiment results proved...
In recent years, research in biometrics is focused on the development of new methods/algorithms to improve the accuracy of existing biometrics systems. Researchers are often required to do comparisons of their new methods/algorithms with existing/similar methods/algorithms and to make evaluations to show the performance of their biometrics systems. Currently, a universal environment in which researchers...
The memory industry faces significant disruption due to challenges related to scaling. Future memory systems will have more heterogeneity at individual levels of the hierarchy, with management support from multiple layers across the stack.
Although cloud computing has become an important topic over the last couple of years, the development of cloud-specific monitoring systems has been neglected. This is surprising considering their importance for metering services and, thus, being able to charge customers. In this paper we introduce a monitoring architecture that was developed and is currently implemented in the EASI-CLOUDS project...
Wireless Sensor Networks (WSNs) have made the power consumption crucial. Memory is known to be extremely power consuming. The increasing gap between processor and memory performance has motivated the design of systems with deep memory hierarchies, cache memory is recognized to improve the performance of memory in WSNs, therefore code transformations are a well-known hardware/software partitioning...
In this paper, we review the file formats for data storage in radio astronomy. As a standard format used in astronomy, Flexible Image Transport System (FITS) is discussed firstly. Random Group FITS File (UVFITS) and FITS Interferometry Data Interchange (FITS-IDI) based on FITS are highlighted. And VOTable promoted by the development of Virtual Observatory (VO) is also briefly reviewed. We all know...
Geographic information system is more and more widely used in our daily lives, it plays an increasingly important role in transportation, urban planning, and resource management. An effective testing method is required to ensure the correctness. At the same time, MongoDB can provide applications with lightweight scalability and high-performance data storage solutions. This paper uses CppUnit unit...
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