ISIS and OSIRIS: A Process-Based Digital Library Application on Top of a Distributed Process Support Middleware

Brettlecker, Gert; Milano, Diego; Ranaldi, Paola; Schek, Hans-Jörg; Schuldt, Heiko; Springmann, Michael

doi:10.1007/978-3-540-77088-6_5

Cited by 8 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This framework is based on a service oriented architecture (SOA), that allows different applications and clients to exchange data with each other on a shared and distributed infrastructure, permitting to build new digital library applications on the base of existing services 10 . The framework has three layers ( Fig.…”

Section: The Systemmentioning

confidence: 99%

A Distributed System for Multimedia Monitoring, Publishing and Retrieval

Becchi¹,

Bertini²,

Bimbo³

et al. 2014

Procedia Computer Science

View full text Add to dashboard Cite

In this paper we present a distributed and interactive multi-user system which provides a flexible approach to collect, manage, annotate and publish collections of images, videos and textual documents. The system is based on a Service Oriented Architecture that allows to combine and orchestrate a large set of web services for automatic and manual annotation, retrieval, browsing, ingestion and authoring of different multimedia sources. These tools can been used to create several publicly available vertical applications, addressing different use cases. Positive results of usability test evaluations have shown that the system can be effectively used to create video retrieval systems.

show abstract

Section: The Systemmentioning

confidence: 99%

A Distributed System for Multimedia Monitoring, Publishing and Retrieval

Becchi¹,

Bertini²,

Bimbo³

et al. 2014

Procedia Computer Science

View full text Add to dashboard Cite

show abstract

“…In our work, we use an implementation that is based on (Thies et al, , 2007(Thies et al, , 2003. As we are particularly interested in distributed information systems such as (Brettlecker et al, 2007), we try to keep platform dependency as low as possible, such that the same components of the infrastructure can either run on a standard desktop computer, a mobile device or PDA, or on a multi-way server. Therefore we reimplemented the IDM in Java, which is platform independent, has a feature-rich class library, a large developer community in particular for distributed information systems, provides a sophisticated threading model and offers enough flexibility to meet our requirements.…”

Section: The Idm Distance Measurementioning

confidence: 99%

“…By inserting its distance in an ordered list of those distances, we can decrease the value of the threshold to the kth value in this list. Such techniques are not limited to the Image Distortion Model and have already been used in the VA-file (Weber et al, 1998), which is a part of ISIS (Brettlecker et al, 2007). Further improvements can be achieved by making use of multithreading.…”

Section: Introductionmentioning

confidence: 96%

Improving efficiency and effectiveness of the image distortion model

Springmann

Dander

Schuldt

2008

Pattern Recognition Letters

Self Cite

View full text Add to dashboard Cite

“…Some examples are the engine proposed by Li et al in [34], the OSIRIS middleware by Brettlecker et al [35], or previous versions of JOpera [16]. Most PEEs rely on replication and distribution-based techniques to increase performance, but such techniques do not yet take into account the underlying hardware topology.…”

Section: Related Workmentioning

confidence: 99%

High‐performance execution of service compositions: a multicore‐aware engine design

Peternier

Pautasso

Binder

et al. 2012

Concurrency and Computation

View full text Add to dashboard Cite

Although modern computer hardware offers an increasing number of processing elements organized in nonuniform memory access (NUMA) architectures, prevailing middleware engines for executing business processes, workflows, and Web service compositions have not been optimized for properly exploiting the abundant processing resources of such machines. Amongst others, factors limiting performance are inefficient thread scheduling by the operating system, which can result in suboptimal use of system memory and CPU caches, and sequential code sections that cannot take advantage of multiple available cores.In this article, we study the performance of the JOpera process execution engine on recent multicore machines. We first evaluate its performance without any dedicated optimization for multicore hardware, showing that additional cores do not significantly improve performance, although the engine has a multithreaded design. Therefore, we apply optimizations on the basis of replication together with an improved, hardware-aware usage of the underlying resources such as NUMA nodes and CPU caches. Thanks to our optimizations, we achieve speedups from a factor of 2 up to a factor of 20 (depending on the target machine) when compared with a baseline execution 'as is'.Hardware based on symmetric multiprocessing architectures is composed of a single memory bus shared by all the CPUs available [21]. Although this approach works relatively well for a small number of CPUs, the shared memory bus rapidly becomes a performance bottleneck on systems with many cores competing for concurrent access to the memory.

show abstract

ISIS and OSIRIS: A Process-Based Digital Library Application on Top of a Distributed Process Support Middleware

Cited by 8 publications

References 6 publications

A Distributed System for Multimedia Monitoring, Publishing and Retrieval

A Distributed System for Multimedia Monitoring, Publishing and Retrieval

Improving efficiency and effectiveness of the image distortion model

High‐performance execution of service compositions: a multicore‐aware engine design

Contact Info

Product

Resources

About