Ⅰ. TWO YEARS’ WORK IN RETROSPECT 1. The 1955 By-election of CAS Membership At the annual session of the standing committee of our Division held in July 1995, some problems concerning the by-election were discussed. ...Ⅰ. TWO YEARS’ WORK IN RETROSPECT 1. The 1955 By-election of CAS Membership At the annual session of the standing committee of our Division held in July 1995, some problems concerning the by-election were discussed. At the meeting, a resolution on the "Methods for appraisal and election of candidates of CAS membership for technological sciences" was examined and adopted,in addition to a plenary decision on some other matters. At another plenary session of the展开更多
The study tries to reveal the situation and development trends of China's graphene research utilizing National Science and Technology Reports(NSTR) as the new data resource. Findings show a continual increase of g...The study tries to reveal the situation and development trends of China's graphene research utilizing National Science and Technology Reports(NSTR) as the new data resource. Findings show a continual increase of graphene projects sponsored by the government. Most of them are from the National Basic Research Program of China and the National High-tech R&D Program,which reflects mainly aiming for breakthroughs of China's graphene research in major frontier fields and promoting industrial competitiveness. As a new material in nanometer area,the graphene research mainly focuses on nanometer research area. Besides,it has also involved more in the promising applications,such as advanced energy technology,biological and medical technology,testing and analytical instrument technology,etc. Major players are universities and research institutes,and they have collaborated a lot. Few enterprises have played an important role in the collaboration network,so China's graphene research is still mainly in the basic research step. Key scholars with their research interests have been revealed.展开更多
Hongkong’s smooth return creates vast prospect and numerous opportunities for Guangdong-Hongkong economic cooperation. Over the past decade the cooperation has gone a long way, from non-governmental to governmental, ...Hongkong’s smooth return creates vast prospect and numerous opportunities for Guangdong-Hongkong economic cooperation. Over the past decade the cooperation has gone a long way, from non-governmental to governmental, from processing trade to high technology. Presently, it has become a highprofile activity which covers various areas.More than 20,000 representatives from 5,063 corporations participated the symposium. And 1,559 agreements, involving $ 13.159 billion, were signed. Of the investment, $8.7851 billion, or 66.8 per cent is from overseas investors. Of the agreements, 810 or 65 per cent, are high new展开更多
Disk failure prediction methods have been useful in handing a single issue,e.g.,heterogeneous disks,model aging,and minority samples.However,because these issues often exist simultaneously,prediction models that can h...Disk failure prediction methods have been useful in handing a single issue,e.g.,heterogeneous disks,model aging,and minority samples.However,because these issues often exist simultaneously,prediction models that can handle only one will result in prediction bias in reality.Existing disk failure prediction methods simply fuse various models,lacking discussion of training data preparation and learning patterns when facing multiple issues,although the solutions to different issues often conflict with each other.As a result,we first explore the training data preparation for multiple issues via a data partitioning pattern,i.e.,our proposed multi-property data partitioning(MDP).Then,we consider learning with the partitioned data for multiple issues as learning multiple tasks,and introduce the model-agnostic meta-learning(MAML)framework to achieve the learning.Based on these improvements,we propose a novel disk failure prediction model named MDP-MAML.MDP addresses the challenges of uneven partitioning and difficulty in partitioning by time,and MAML addresses the challenge of learning with multiple domains and minor samples for multiple issues.In addition,MDP-MAML can assimilate emerging issues for learning and prediction.On the datasets reported by two real-world data centers,compared to state-of-the-art methods,MDP-MAML can improve the area under the curve(AUC)and false detection rate(FDR)from 0.85 to0.89 and from 0.85 to 0.91,respectively,while reducing false alarm rate(FAR)from 4.88%to 2.85%.展开更多
文摘Ⅰ. TWO YEARS’ WORK IN RETROSPECT 1. The 1955 By-election of CAS Membership At the annual session of the standing committee of our Division held in July 1995, some problems concerning the by-election were discussed. At the meeting, a resolution on the "Methods for appraisal and election of candidates of CAS membership for technological sciences" was examined and adopted,in addition to a plenary decision on some other matters. At another plenary session of the
基金Supported by In-Depth Analysis and Research of Key Science and Technology Areas of ISTIC(No.ZD2017-1)
文摘The study tries to reveal the situation and development trends of China's graphene research utilizing National Science and Technology Reports(NSTR) as the new data resource. Findings show a continual increase of graphene projects sponsored by the government. Most of them are from the National Basic Research Program of China and the National High-tech R&D Program,which reflects mainly aiming for breakthroughs of China's graphene research in major frontier fields and promoting industrial competitiveness. As a new material in nanometer area,the graphene research mainly focuses on nanometer research area. Besides,it has also involved more in the promising applications,such as advanced energy technology,biological and medical technology,testing and analytical instrument technology,etc. Major players are universities and research institutes,and they have collaborated a lot. Few enterprises have played an important role in the collaboration network,so China's graphene research is still mainly in the basic research step. Key scholars with their research interests have been revealed.
文摘Hongkong’s smooth return creates vast prospect and numerous opportunities for Guangdong-Hongkong economic cooperation. Over the past decade the cooperation has gone a long way, from non-governmental to governmental, from processing trade to high technology. Presently, it has become a highprofile activity which covers various areas.More than 20,000 representatives from 5,063 corporations participated the symposium. And 1,559 agreements, involving $ 13.159 billion, were signed. Of the investment, $8.7851 billion, or 66.8 per cent is from overseas investors. Of the agreements, 810 or 65 per cent, are high new
基金Project supported by the National Natural Science Foundation of China(No.61902135)the Shandong Provincial Natural Science Foundation,China(No.ZR2019LZH003)。
文摘Disk failure prediction methods have been useful in handing a single issue,e.g.,heterogeneous disks,model aging,and minority samples.However,because these issues often exist simultaneously,prediction models that can handle only one will result in prediction bias in reality.Existing disk failure prediction methods simply fuse various models,lacking discussion of training data preparation and learning patterns when facing multiple issues,although the solutions to different issues often conflict with each other.As a result,we first explore the training data preparation for multiple issues via a data partitioning pattern,i.e.,our proposed multi-property data partitioning(MDP).Then,we consider learning with the partitioned data for multiple issues as learning multiple tasks,and introduce the model-agnostic meta-learning(MAML)framework to achieve the learning.Based on these improvements,we propose a novel disk failure prediction model named MDP-MAML.MDP addresses the challenges of uneven partitioning and difficulty in partitioning by time,and MAML addresses the challenge of learning with multiple domains and minor samples for multiple issues.In addition,MDP-MAML can assimilate emerging issues for learning and prediction.On the datasets reported by two real-world data centers,compared to state-of-the-art methods,MDP-MAML can improve the area under the curve(AUC)and false detection rate(FDR)from 0.85 to0.89 and from 0.85 to 0.91,respectively,while reducing false alarm rate(FAR)from 4.88%to 2.85%.
