A standard data format for timetabling instances

1998 ◽  
pp. 213-222 ◽  
Author(s):  
Edmund K. Burke ◽  
Jeffrey H. Kingston ◽  
Paul A. Pepper
Keyword(s):  
Data Format ◽  
Standard Data

scholarly journals BIM Interoperability Analyses in Structure Design

CivilEng ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 174-192
Author(s):  
Alcinia Zita Sampaio ◽  
Augusto Martins Gomes
Keyword(s):  
Data Transfer ◽  
Structure Design ◽  
Data Format ◽  
Industry Foundation Classes ◽  
Standard Data ◽  
Transfer Processes ◽  
Building Information ◽  
Modeling Software ◽  
Efficient Level ◽  
Alternative Solutions

The building information modelling (BIM) methodology supports collaborative works, based on the centralization of all information in a federated BIM model and on an efficient level of interoperability between BIM-based platforms. Concerning the structure design, the interoperability capacity of the most used software presents limitations that must be identified and alternative solutions must be proposed. This study analyzes the process of transfer of structure models between modeling and structure analysis tools. Distinct building cases were performed in order to recognize the type of limitations verified in the transfer processes concerning two-way data flow between several software. The study involves the modeling software ArchiCAD 2020, Revit 2020, and AECOsim 2019 and the structure analyzes tools SAP 2020, Robot 2020, and ETABS 22020. The transfer processes are realized in two ways: using the native data format; using a universal standard data transfer, the Industry Foundation Classes (IFC) format. The level of maturity of BIM in structure design is still relatively low, caused essentially by interoperability problems, but despite the limitations detected, this study shows throughout the development of several building case, that the methodology has clear advantages in the development of the structure project.

scholarly journals Terahertz Image Detection with the Improved Faster Region-Based Convolutional Neural Network

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2327 ◽  
Author(s):  
Jinsong Zhang ◽  
Wenjie Xing ◽  
Mengdao Xing ◽  
Guangcai Sun
Keyword(s):  
Neural Network ◽  
Convolutional Neural Network ◽  
Detection System ◽  
Terahertz Imaging ◽  
Image Detection ◽  
Data Format ◽  
Standard Data ◽  
Concealed Weapons ◽  
Special Distribution ◽  
Effectiveness And Efficiency

In recent years, terahertz imaging systems and techniques have been developed and have gradually become a leading frontier field. With the advantages of low radiation and clothing-penetrable, terahertz imaging technology has been widely used for the detection of concealed weapons or other contraband carried on personnel at airports and other secure locations. This paper aims to detect these concealed items with deep learning method for its well detection performance and real-time detection speed. Based on the analysis of the characteristics of terahertz images, an effective detection system is proposed in this paper. First, a lots of terahertz images are collected and labeled as the standard data format. Secondly, this paper establishes the terahertz classification dataset and proposes a classification method based on transfer learning. Then considering the special distribution of terahertz image, an improved faster region-based convolutional neural network (Faster R-CNN) method based on threshold segmentation is proposed for detecting human body and other objects independently. Finally, experimental results demonstrate the effectiveness and efficiency of the proposed method for terahertz image detection.

scholarly journals Whole Earth Telescope Headquarters Standard Data Formats

2003 ◽  
Vol 12 (2) ◽  
Author(s):  
R. L. Riddle ◽  
S. D. Kawaler
Keyword(s):  
Next Generation ◽  
Ccd Photometry ◽  
Data Format ◽  
Final Version ◽  
Standard Data ◽  
Data Formats ◽  
Whole Earth

AbstractAs the WET moves to CCD systems, we move away from the uniformity of the standard WET photometer into an arena where each system can be radically different. There are many possible CCD photometry systems that can fulfil the requirements of a WET instrument, but each of these will have their own unique native data format. During XCov22, it became readily apparent that the WET requires a defined data format for all CCD data that arrives at HQ. This paper describes the proposed format for the next generation of WET data; the final version will be the default format for XQED, the new photometry package discussed elsewhere in these proceedings.

scholarly journals The Intermediate Data Structure (IDS) for Longitudinal Historical Microdata, version 4

2014 ◽  
Vol 1 ◽  
pp. 1-26
Author(s):  
George Alter ◽  
Kees Mandemakers
Keyword(s):  
Data Structure ◽  
Social Research ◽  
Geospatial Information ◽  
Data Format ◽  
Standard Data ◽  
Intermediate Data ◽  
Hierarchical Relationships ◽  
Life Courses ◽  
Historical Life

The Intermediate Data Structure (IDS) is a standard data format that has been adopted by several large longitudinal databases on historical populations. Since the publication of the first version in Historical Social Research in 2009, two improved and extended versions have been published in the Collaboratory Historical Life Courses. In this publication we present version 4 which is the latest ‘official’ standard of the IDS. Discussions with users over the last four years resulted in important changes, like the inclusion of a new table defining the hierarchical relationships among ‘contexts’, decision schemes for recording relationships, additional fields in the metadata table, rules for handling stillbirths, a reciprocal model for relationships, guidance for linking IDS data with geospatial information, and the introduction of an extended IDS for computed variables.

scholarly journals Conformity Analysis of GTFS Routes and Bus Trajectories

2019 ◽  
Author(s):  
Andreza Raquel M. Queiroz ◽  
Veruska B. Santos ◽  
Dimas C. Nascimento ◽  
Carlos Eduardo S. Pires
Keyword(s):  
Data Analysis ◽  
Public Transportation ◽  
Data Format ◽  
The Public ◽  
Standard Data ◽  
Transportation Agencies

General Transit Feed Specification (GTFS) is a standard data format generated by transportation agencies of most of the cities worldwide to provide scheduled data of their services. Despite being the standard in the public transportation field, applications that consume GTFS data may face two problems: outdated versions, since some transportation agencies do not provide GTFS in the same frequency that transit changes; and discrepancy with positioning data sent by the buses. This paper provides a conformity analysis of GTFS routes and bus positioning data from multiple cities. We have found inconsistencies related to GPS route labels and GTFS routes. We also classify the conformity of bus trajectories and enumerate the main inconsistencies found in data analysis.

Research on Multi-Solver Simulation Interface of Aero-Engine Compressor

2013 ◽  
Vol 404 ◽  
pp. 331-336
Author(s):  
Yang Zhao ◽  
Jie Jin ◽  
Jiang Fan
Keyword(s):  
Cfd Simulation ◽  
Axial Compressor ◽  
Cfd Analysis ◽  
Data Format ◽  
Aerodynamic Analysis ◽  
Standard Data ◽  
Setting Process ◽  
Aero Engine ◽  
Engine Compressor ◽  
Cross Platform

Establish a CFD simulation interface for compressor aerodynamic analysis based on general CFD software. The simulation interface includes data format, process and interface standard. Data format based on CGNS is built for cross-platform restoring and retrieving mass data. The designing of process references the process of general CFD analysis and the compressor aerodynamic analysis. The interface standard is used to import and the parameters and export them into corresponding profiles according to the demand of different computation modules. Validation results for the simulation interface using a single-stage transonic axial compressor fan ATS-2 shows that the setting process is more convenient and achieves a certain degree of automation.

scholarly journals Editorial

2018 ◽  
Vol 5 ◽  
pp. 1-2
Author(s):  
Paul Puschmann ◽  
Luciana Quaranta
Keyword(s):  
Data Structure ◽  
Life Course ◽  
Comparative Research ◽  
Population Studies ◽  
Data Format ◽  
Standard Data ◽  
Intermediate Data ◽  
Historical Databases ◽  
Life Course Studies ◽  
Historical Life

Historical Life Course Studies, a journal in population studies, aims to stimulate and facilitate the implementation of IDS (Intermediate Data Structure, a standard data format for large historical databases), and to publish the results from (comparative) research with the help of large historical databases. The journal publishes not only empirical articles, but also descriptions (of the construction) of new and existing large historical databases, as well as articles dealing with database documentation, the transformation of existing databases into the IDS format, the development of algorithms and extraction software and all other issues related to the methodology of large historical databases.

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