API Access Research Articles

Analysis environments for CMS

The CMS offline software suite uses a layered approach to provide several different environments suitable for a wide range of analysis styles. At the heart of all the environments is the ROOT-based event data model file format. The simplest environment uses ‘bare’ ROOT to read files directly, without the use of any CMS-specific supporting libraries. This is useful for performing simple checks on a file or plotting simple distributions (such as the momentum distribution of tracks). The second environment supports use of the CMS framework's smart pointers that read data on demand, as well as automatic loading of the libraries holding the object interfaces. This environment fully supports interactive ROOT sessions in either CINT or PyROOT. The third environment combines ROOT's TSelector with the data access API of the full CMS framework, facilitating sharing of code between the ROOT environment and the full framework. The final environment is the full CMS framework that is used for all data production activities as well as full access to all data available on the Grid. By providing a layered approach to analysis environments, physicists can choose the environment that most closely matches their individual work style.

Random-Accessible Compressed Triangle Meshes

With the exponential growth in size of geometric data, it is becoming increasingly important to make effective use of multilevel caches, limited disk storage, and bandwidth. As a result, recent work in the visualization community has focused either on designing sequential access compression schemes or on producing cache-coherent layouts of (uncompressed) meshes for random access. Unfortunately combining these two strategies is challenging as they fundamentally assume conflicting modes of data access. In this paper, we propose a novel order-preserving compression method that supports transparent random access to compressed triangle meshes. Our decompression method selectively fetches from disk, decodes, and caches in memory requested parts of a mesh. We also provide a general mesh access API for seamless mesh traversal and incidence queries. While the method imposes no particular mesh layout, it is especially suitable for cache-oblivious layouts, which minimize the number of decompression I/O requests and provide high cache utilization during access to decompressed, in-memory portions of the mesh. Moreover, the transparency of our scheme enables improved performance without the need for application code changes. We achieve compression rates on the order of 20:1 and significantly improved I/O performance due to reduced data transfer. To demonstrate the benefits of our method, we implement two common applications as benchmarks. By using cache-oblivious layouts for the input models, we observe 2?6 times overall speedup compared to using uncompressed meshes.

Standards: The P1685 IP-XACT IP Metadata Standard

The paper aims to develop an XML-based standard for describing electronic intellectual property - that is, blocks of electronic logic suitable for inclusion in complex integrated circuits, commonly know as systems on chips (SoCs). This work, which is based on the Spirit Consortium's IP-XACT specification, has transferred to the IEEE for standardization. The IP-XACT specification provides a metadata schema for describing IP, enabling it to be compatible with automated integration techniques, and an API for tool access to this schema. Tools that implement the standard would be able to automatically interpret, configure, integrate, and manipulate IP blocks that are delivered with metadata that conforms to the proposed IP metadata description, and the IP-XACT APIs provides a standard method for linking multiple tools through a single exchange-metadata format. This automatic integration of tools and IP from multiple vendors creates an IP-XACT-enabled environment

GDPC: connecting researchers with multiple integrated data sources.

The goal of this project is to simplify access to genomic diversity and phenotype data, thereby encouraging reuse of this data. The Genomic Diversity and Phenotype Connection (GDPC) accomplishes this by retrieving data from one or more data sources and by allowing researchers to analyze integrated data in a standard format. GDPC is written in JAVA and provides (1) data sources available as web services that transfer XML formatted data via the SOAP protocol; (2) a JAVA API for programmatic access to data sources; and (3) a front-end application that allows users to manage data sources, retrieve data based on filters, sort/group data based on property values and save/open the data as XML files. The source code, compiled code, documentation and GDPC Browser are freely available at: www.maizegenetics.net/gdpc/index.html the current release of GDPC is version 1.0, with updated releases planned for the future. Comments are welcome.

An advanced service provision framework for reconfigurable mobile networks

The success of next generation mobile networks is highly dependent on the availability of a plethora of functionality-rich applications, accessible via a variety of network infrastructures and terminals. This can be achieved through the cooperation of various business players in addition to network operators and infrastructure providers. The specification by major standardisation organisations of open APIs for network access by third parties is a significant step in this direction. A critical issue in such architectures is reconfiguration management, which is regarded as the mean to enable new approaches to service provision, customisation and personalisation. In this paper, we present our proposal for a generic, open, flexible, service provision framework that supports context-aware service provision and reconfiguration management.

The Misuse of English by French Writers

The Misuse of English by French Writers Get access Apis Apis Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume s6-I, Issue 1, 3 January 1880, Page 24, https://doi.org/10.1093/nq/s6-I.1.24a Published: 03 January 1880

Parthenissa

Parthenissa Get access Apis Apis Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume s5-XI, Issue 281, 17 May 1879, Page 387, https://doi.org/10.1093/nq/s5-XI.281.387j Published: 17 May 1879

Authors of Books Wanted

Authors of Books Wanted Get access Apis Apis Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume s5-VIII, Issue 193, 8 September 1877, Page 188, https://doi.org/10.1093/nq/s5-VIII.193.188k Published: 08 September 1877

E?astixon Iepon

E?astixon Iepon Get access Apis Apis Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume s5-VII, Issue 163, 10 February 1877, Page 107, https://doi.org/10.1093/nq/s5-VII.163.107b Published: 10 February 1877

“Justine.”

“Justine.” Get access Apis Apis Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume s5-III, Issue 73, 23 May 1875, Page 408, https://doi.org/10.1093/nq/s5-III.73.408b Published: 22 May 1875