为破解高质量数据集在转化为现实世界资产(RWA)的过程中,因其“高质量”难以自证而导致的确权、定价与互信难题,本文提出一种全新的确权与评价范式:可信数据资产(Verifiable Data Asset, VDA)。该范式首先定义了“四高一可”(高真实性...为破解高质量数据集在转化为现实世界资产(RWA)的过程中,因其“高质量”难以自证而导致的确权、定价与互信难题,本文提出一种全新的确权与评价范式:可信数据资产(Verifiable Data Asset, VDA)。该范式首先定义了“四高一可”(高真实性、高完整性、高时效性、高合规性与可验证性)作为高质量数据集的客观标准。在此基础上,通过构建由“产权凭证(VDA-Cert)”、“质量报告(VDA-Report)”和“过程追溯(VDA-Trace)”构成的“三元核心”,将“可信”特质内生于数据资产本体,使其成为“自证其信”的经济实体。本文系统阐述了VDA范式如何为数据要素市场提供一个兼具价值锚定、权利明晰与过程透明的确权与评价解决方案,旨在从根本上激活高质量数据集的经济价值。展开更多
On 2012 March 7, the STEREO Ahead and Behind spacecraft, along with near-Earth spacecraft （e.g. SOHO, Wind） situated between the two STEREO spacecraft, observed an extremely large global solar energetic particle （...On 2012 March 7, the STEREO Ahead and Behind spacecraft, along with near-Earth spacecraft （e.g. SOHO, Wind） situated between the two STEREO spacecraft, observed an extremely large global solar energetic particle （SEP） event in Solar Cycle 24. Two successive coronal mass ejections （CMEs） have been detected close in time. From the multi-point in-situ observations, it can be found that this SEP event was caused by the first CME, but the second one was not involved. Using velocity dispersion analysis （VDA）, we find that for a well magnetically connected point, the energetic protons and electrons are released nearly at the same time. The path lengths to STEREO-B （STB） for protons and electrons have a distinct difference and deviate remarkably from the nominal Parker spiral path length, which is likely due to the presence of interplanetary magnetic structures situated between the source and STB. Also, the VDA method seems to only obtain reasonable results at well-connected locations and the inferred release times of energetic particles in different energy channels are similar. We suggest that good-connection is crucial for obtaining both an accurate release time and path length simultaneously, agreeing with the modeling result of Wang ＆ Qin （2015）.展开更多
文摘为破解高质量数据集在转化为现实世界资产(RWA)的过程中,因其“高质量”难以自证而导致的确权、定价与互信难题,本文提出一种全新的确权与评价范式:可信数据资产(Verifiable Data Asset, VDA)。该范式首先定义了“四高一可”(高真实性、高完整性、高时效性、高合规性与可验证性)作为高质量数据集的客观标准。在此基础上,通过构建由“产权凭证(VDA-Cert)”、“质量报告(VDA-Report)”和“过程追溯(VDA-Trace)”构成的“三元核心”,将“可信”特质内生于数据资产本体,使其成为“自证其信”的经济实体。本文系统阐述了VDA范式如何为数据要素市场提供一个兼具价值锚定、权利明晰与过程透明的确权与评价解决方案,旨在从根本上激活高质量数据集的经济价值。
基金supported at NUIST by the National Natural Science Foundation of China(NSFC)-41304150 for Ding L.G.at CMA by NSFC-41274193 and 41474166 for Le G.M
文摘On 2012 March 7, the STEREO Ahead and Behind spacecraft, along with near-Earth spacecraft （e.g. SOHO, Wind） situated between the two STEREO spacecraft, observed an extremely large global solar energetic particle （SEP） event in Solar Cycle 24. Two successive coronal mass ejections （CMEs） have been detected close in time. From the multi-point in-situ observations, it can be found that this SEP event was caused by the first CME, but the second one was not involved. Using velocity dispersion analysis （VDA）, we find that for a well magnetically connected point, the energetic protons and electrons are released nearly at the same time. The path lengths to STEREO-B （STB） for protons and electrons have a distinct difference and deviate remarkably from the nominal Parker spiral path length, which is likely due to the presence of interplanetary magnetic structures situated between the source and STB. Also, the VDA method seems to only obtain reasonable results at well-connected locations and the inferred release times of energetic particles in different energy channels are similar. We suggest that good-connection is crucial for obtaining both an accurate release time and path length simultaneously, agreeing with the modeling result of Wang ＆ Qin （2015）.
