Java's threads offer appropriate means either for parallel programming of SMPs or as target constructs when compiling add-on features (e.g. forall constructs, automatic parallelization, etc.) Unfortunately, Java does not provide elegant and straightforward mechanisms on distributed memory machines, like clusters workstations. JavaParty transparently adds remote objects to purely by declaration while avoiding the disadvantages explicit socket communication, overhead RMI many message-passing...

Using design patterns is claimed to improve programmer productivity and software quality. Such improvements may manifest both at construction time (in faster better program design) maintenance more accurate comprehension). The paper focuses on the context reports experimental tests of following question: does it help maintainer if in code are documented explicitly (using source comments) compared a well-commented without explicit reference patterns? Subjects performed tasks two programs...

Article A more efficient RMI for Java Share on Authors: Christian Nester Computer Science Department, University of Karlsruhe, Germany GermanyView Profile , Michael Philippsen Bernhard Haumacher Authors Info & Claims JAVA '99: Proceedings the ACM 1999 conference GrandeJune Pages 152–159https://doi.org/10.1145/304065.304117Online:01 June 1999Publication History 98citation1,072DownloadsMetricsTotal Citations98Total Downloads1,072Last 12 Months9Last 6 weeks0 Get Citation AlertsNew Alert...

In current Java implementations, Remote Method Invocation (RMI) is too slow, especially for high-performance computing. RMI designed wide-area and high-latency networks, it based on a slow object serialization, does not support communication networks. The paper demonstrates that much faster drop-in an efficient serialization can be implemented completely in without any native code. Moreover, the re-designed supports non-TCP/IP even with heterogeneous transport protocols. We demonstrate...

When it is necessary to express changes between two source code files as a list of edit actions (an script), modern tree differencing algorithms are superior most text-based approaches because they take movements into account and more accurately. We present 5 general optimizations that can be added state-of-the-art shorten the resulting scripts. Applied Gumtree, RTED, JSync, ChangeDistiller, lead shorter scripts for 18-98% in histories 9 open-source software repositories. These also parts...

The main challenge in estimating human velocity from noisy Inertial Measurement Units (IMUs) are the errors that accumulate by integrating accelerometer signals over a long time. Known approaches work on step length estimation optimized for specific application, sensor position, and movement type, require an exhaustive (manual) parameter tuning, can thus not be applied to other types or broader range of applications. Moreover, varying dynamics (as they present instance sports applications)...

article Share on Multiparadigm communications in Java for grid computing Authors: Vladimir Getov University of Westminster, London, UK UKView Profile , Gregor von Laszewski Chicago, IL ILView Michael Philippsen Karlsruhe, Germany GermanyView Ian Foster Argonne National Laboratory LaboratoryView Authors Info & Claims Communications the ACMVolume 44Issue 10Oct. 2001pp 118–125https://doi.org/10.1145/383845.383872Published:01 October 2001Publication History 43citation1,983DownloadsMetricsTotal...

Several research tools and projects require groups of similar code changes as input. Examples are recommendation bug finding that can provide valuable information to developers based on such data. With the help they simplify application fixes multiple locations in a project. But despite their benefit, practical value existing is limited, users need manually specify input data, i.e., changes.

Pedestrian Dead Reckoning (PDR) uses inertial measurement units (IMUs) and combines velocity orientation estimates to determine a position. The estimation of the is still challenging, as integration noisy acceleration angular speed signals over long period time causes large drifts. Classic approaches estimate optimize for specific applications, sensor positions, types movement require extensive parameter tuning. Our novel hybrid filter convolutional neural network (CNN) bidirectional...

O Município de Imbé tem origem na população tradicional pescadores artesanais que atualmente estão inseridos no meio urbano, dividindo as áreas pesca com outras atividades uma cidade urbanizada. Por possuírem características os diferenciam, é importante compreender como a Política Pública do PRONAF, criada para atender agricultura familiar, implementada artesanal. Utilizando conceitos voltados o Burocrata Nível Rua, caso extensionista rural, responsável pela ligação entre Estado e...

During the last decade object-oriented programming has grown from marginal influence into widespread acceptance. same period, progress in hardware and networking changed computing environment sequential to parallel. Multi-processor workstations clusters are now quite common. Unnumbered proposals have been made combine both developments. Always prime objective provide advantages of software design at increased power parallel machines. However, combining concepts proven be notoriously...

Java represents both a challenge and an opportunity to practitioners of numerical computing. The article analyzes the current state in computing identifies some directions for realization its full potential. Many research projects have demonstrated technology achieve very high performance floating-point computations with Java. Its incorporation into commercially available JVMs is more economic market issue than technical one. combination programming features, pervasiveness, could make it...

Abstract Although OpenMP is a widely agreed‐upon standard for the C/C++ and Fortran programming languages semi‐automatic parallelization of programs shared memory machines, not much has been done on binding to Java that targets clusters with distributed memory. This paper presents three major contributions: (1) JaMP an adaptation implements large subset specification expressiveness comparable OpenMP; (2) we suggest set extensions allow better integration into language; (3) present our...

Event-based Systems (EBS) are used to detect and analyze meaningful events in surveillance, sports, finances many other areas. With rising data event rates with correlations among these events, sequential processing becomes infeasible needs be distributed. Existing approaches cannot deal the ubiquity of out-of-order arrival that is introduced by network delays when distributing EBS. Order-less may result a system failure. We present low-latency approach based on K-slack achieves ordered high...

In surveillance, sports, finances, etc., distributed event-based systems are used to detect meaningful events with low latency in high data rate event streams. Both known approaches deal the predominant out-of-order arrival at detectors have their shortcomings: buffering introduce latencies for ordering and stream revision may result system overloads due unbounded retraction cascades. This paper presents a speculative processing technique streams that enhances typical approaches. contrast...

Complex Event Processing (CEP) is a popular method to monitor processes in several contexts, especially when dealing with incidents at distinct points time. Specific temporal combinations of various events are often special interest for automatic detection. For the description such patterns, one can either implement rules some higher programming language or use Description Language (EDL). Both complicated and error-prone non-engineers, because it varies greatly from natural language....