[目的/意义]W3C Data Catalog Vocabulary(数据目录词汇表,DCAT)是各国开放数据元数据标准的基础和源头。为适应更广泛的需求,DCAT修订版有了大幅度的改进,对其的系统介绍可为我国的开放政府数据元数据标准建设提供一定的参考和借鉴。[...[目的/意义]W3C Data Catalog Vocabulary(数据目录词汇表,DCAT)是各国开放数据元数据标准的基础和源头。为适应更广泛的需求,DCAT修订版有了大幅度的改进,对其的系统介绍可为我国的开放政府数据元数据标准建设提供一定的参考和借鉴。[方法/过程]采用文献分析和网络调查方法,介绍W3C数据集交换工作组对DCAT的修订背景、主要成果和改进内容。[结果/结论]W3C DCAT修订版代表着国际上元数据标准的最新成果和发展方向。对我国而言,应在提升数据目录的互操作能力、多学科广泛参与、政府标准与业界实践相互融合上借鉴先进经验。展开更多
In this paper,we describe the data management practices and services developed for making FAIR compliant a scientific archive of Scanning Tunneling Microscopy(STM)images.As a first step,we extracted the instrument met...In this paper,we describe the data management practices and services developed for making FAIR compliant a scientific archive of Scanning Tunneling Microscopy(STM)images.As a first step,we extracted the instrument metadata of each image of the dataset to create a structured database.We then enriched these metadata with information on the structure and composition of the surface by means of a pipeline that leverages human annotation,machine learning techniques,and instrument metadata filtering.To visually explore both images and metadata,as well as to improve the accessibility and usability of the dataset,we developed"STM explorer"as a web service integrated within the Trieste Advanced Data services(TriDAS)website.On top of these data services and tools,we propose an implementation of the W3C PROV standard to describe provenance metadata of STM images.展开更多
文摘[目的/意义]W3C Data Catalog Vocabulary(数据目录词汇表,DCAT)是各国开放数据元数据标准的基础和源头。为适应更广泛的需求,DCAT修订版有了大幅度的改进,对其的系统介绍可为我国的开放政府数据元数据标准建设提供一定的参考和借鉴。[方法/过程]采用文献分析和网络调查方法,介绍W3C数据集交换工作组对DCAT的修订背景、主要成果和改进内容。[结果/结论]W3C DCAT修订版代表着国际上元数据标准的最新成果和发展方向。对我国而言,应在提升数据目录的互操作能力、多学科广泛参与、政府标准与业界实践相互融合上借鉴先进经验。
基金supported by funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No.857650EOSC-Pillar project and European Union's Horizon 2020 research and innovation programme under grant agreement No.101007417 within the framework of the NFFA-Europe Pilot Joint Activities。
文摘In this paper,we describe the data management practices and services developed for making FAIR compliant a scientific archive of Scanning Tunneling Microscopy(STM)images.As a first step,we extracted the instrument metadata of each image of the dataset to create a structured database.We then enriched these metadata with information on the structure and composition of the surface by means of a pipeline that leverages human annotation,machine learning techniques,and instrument metadata filtering.To visually explore both images and metadata,as well as to improve the accessibility and usability of the dataset,we developed"STM explorer"as a web service integrated within the Trieste Advanced Data services(TriDAS)website.On top of these data services and tools,we propose an implementation of the W3C PROV standard to describe provenance metadata of STM images.
