Patents Assigned to Computer Network Information Center, Chinese Academy of Sciences
  • Publication number: 20240089236
    Abstract: Described are an encoding method and system for ROAs. The encoding method includes the following steps: given a set of authorized IP prefixes an AS which are maintained with an IP address trie. By specifying a sequence of hanging levels on the IP address trie, it is divided into a set of non-overlapping sub-trees, each rooted at a hanging level. A node on a hanging level uniquely defines a sub-tree rooted at it, whose prefix can be encoded as the identifier of this sub-tree. All authorized prefixes covered by a sub-tree can be encoded into a bitmap of 2h bits, where h is the height of this sub-tree. Thus, the set of authorized IP prefixes of an AS is encoded into several tuples (identifier, bitmap).
    Type: Application
    Filed: April 22, 2022
    Publication date: March 14, 2024
    Applicant: COMPUTER NETWORK INFORMATION CENTER, CHINESE ACADEMY OF SCIENCES
    Inventors: Yanbiao LI, Gaogang XIE, Hui ZOU, Yuxuan CHEN, Yinbo XU, Zhuoran MA
  • Patent number: 11874855
    Abstract: A parallel data access method for massive remote-sensing images includes: 1) segmenting a remote-sensing image to be processed using a set grid system, data in each grid corresponding to a data block; 2) collecting a data access log of an underlying distributed object storage system Ceph in a past period of time, and measuring a load index of each Ceph cluster and a load index of each pool; 3) selecting a pool with a minimum load in a Ceph cluster with a minimum current load to serve as a storage position of a current data block, and writing each data block into a corresponding pool; 4) returning a data identifier dataid and a data access path of the remote-sensing image; and 5) storing metadata of each data block in a metadata database. The method can support rapid and high-concurrency read and write of large-area data of a grid data block.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: January 16, 2024
    Assignee: Computer Network Information Center, Chinese Academy of Sciences
    Inventors: Xuezhi Wang, Jianghua Zhao, Xiaohua Zhou, Qinghui Lin, Yuanchun Zhou
  • Publication number: 20230342191
    Abstract: The system includes a job request collection and distribution module, a scheduling service module and a job execution service module. The job request collection and distribution module receives first description information of a job to be executed from a user terminal. A current scheduling service module matched with a job scheduling algorithm name in at least one scheduling service module determines a computing resource required by the job to be executed according to the first description information, and then determines a job scheduling result according to the required computing resource and currently available cluster computing resources. The job is submitted to a high-performance computer through a current job execution service module matched with a job execution service name in at least one job execution service module according to a device identifier and a global identifier of the job to be executed contained in the scheduling result.
    Type: Application
    Filed: August 24, 2021
    Publication date: October 26, 2023
    Applicant: COMPUTER NETWORK INFORMATION CENTER, CHINESE ACADEMY OF SCIENCES
    Inventors: Can WU, Xiaoning WANG, Haili XIAO, Xuebin CHI, Rong HE, Shasha LU
  • Patent number: 11775594
    Abstract: The present invention discloses a method for disambiguating between authors with a same name on basis of network representation and semantic representation.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: October 3, 2023
    Assignee: Computer Network Information Center, Chinese Academy of Sciences
    Inventors: Yi Du, Hanxue Wang, Ziyue Qiao, Yuanchun Zhou
  • Publication number: 20220164413
    Abstract: The disclosure relates to a method and a system for predicting the operation time of sparse matrix vector multiplication. The method comprises constructing a convolutional neural network comprising an input layer, a feature processing layer, a data splicing layer and an output layer for outputting prediction results. The method further comprises acquiring a plurality of groups of sparse matrices with known sparse matrix vector multiplication operation time as sample data, inputting the sample data into the convolutional neural network to train the convolutional neural network, and inputting the sparse matrix to be classified into the trained convolutional neural network to realize the prediction of the operation time of sparse matrix vector multiplication.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 26, 2022
    Applicants: CHINA INSTITUTE OF ATOMIC ENERGY, COMPUTER NETWORK INFORMATION CENTER, CHINESE ACADEMY OF SCIENCES
    Inventors: Jue WANG, Yangde FENG, Yangang WANG, Zhongxiao CAO, Wen YANG, Tiancai LIU, Ningming NIE, Fuhai GAO, Xiaoguang WANG, Yue GAO
  • Publication number: 20220058311
    Abstract: A method and device for simulating microstructure evolution of a material based on solution in an exponential time-difference format. The method includes: establishing a reaction rate theory model for substance defects, wherein the model is expressed with equations that comprise linear terms having coefficients characterized with matrixes; and iteratively solving the equations by using an exponential time-difference format, wherein during the iterative solving, the linear terms with exponential powers of the matrixes as the coefficients are integrated. Since a rate theory is not limited by spatial-temporal scales, the advantages of the rate theory can be significantly reflected when the microstructure evolution is simulated under a high damage dose condition; and then, the equations are solved by using the exponential time-difference format, with a solved result better in accuracy and higher in precision.
    Type: Application
    Filed: October 9, 2020
    Publication date: February 24, 2022
    Applicants: CHINA INSTITUTE OF ATOMIC ENERGY, COMPUTER NETWORK INFORMATION CENTER, CHINESE ACADEMY OF SCIENCES
    Inventors: Yangang WANG, Xinfu HE, Jian ZHANG, Zhikuang XIN, Yankun DOU, Ningming NIE, Lixia JIA, Jue WANG, Wen YANG
  • Patent number: 10257160
    Abstract: The present invention relates to a method and system for resolving Internet of Things heterogeneous identifiers. The method provides a special description mechanism for a resolution protocol for an Internet of Things heterogeneous identifiers, which not only forms a heterogeneous identification coding rule corresponding to the heterogeneous identifier, but also accordingly forms a corresponding heterogeneous identification resolution protocol rule, and conducts registration binding on the above-mentioned rules and the corresponding Internet of Things heterogeneous identifier. By resolving and querying standard identification code corresponding to the Internet of Things heterogeneous identification, the disclosed method can obtain the bound heterogeneous identification coding rule and heterogeneous identification resolution protocol rule.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: April 9, 2019
    Assignee: Computer Network Information Center, Chinese Academy of Sciences
    Inventors: Ning Kong, Shuo Shen, Bing Liu, Xiaodong Li, Xiangyang Huang
  • Patent number: 10050913
    Abstract: Disclosed are a method for sending and receiving emails using international multilingual mailbox. The method includes: 1) setting a field 1 in a header of an email in an international multilingual mailbox, and recording a substitute English email address corresponding to the international multilingual mailbox; setting a field 2 in the header to describe the email's sender's email address in English; 2) before a sending an email generated by a terminal that supports international multilingual mailbox, checking whether the receiving terminal of the email supports international multilingual mailbox; if not, sending the email according to the English email address in the field 1; and if yes, directly sending the email; and 3) extracting the field 2 from the header of the email by the receiving terminal, determining the corresponding language, and sending a prompt in English or the predetermined language to the email recipient.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 14, 2018
    Assignee: Computer Network Information Center, Chinese Academy of Sciences
    Inventors: Jiankang Yao, Ning Kong, Shuo Shen, Bing Liu
  • Patent number: 9276956
    Abstract: A method for detecting a phishing website includes extracting a domain name from a target URL of a web page under investigation, and querying PageRank and/or Alexa ranking of the domain name; extracting a title character string from the title of the web page and matching the character string to phishing sensitive words; using the title of web page as a keyword to search on a search engine; querying whether Target URL and the web page in the search result with a same title as the web page under investigation have the same domain name server NS and server IP address to determine whether the website is a phishing website. The disclosed method utilizes common features of phishing websites and public resources on the Internet, and overcomes the difficulty in collecting phishing website samples, and is well adapted to detecting phishing aimed at new target websites.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 1, 2016
    Assignee: Computer Network Information Center Chinese Academy of Sciences
    Inventors: Guanggang Geng, Bo Hong
  • Publication number: 20150188883
    Abstract: The disclosed method and system implement domain name registration and resolution based on a domain name group. The system comprises a registration client terminal, a registration server, and a resolution server. The registration server processes single domain name registration information and generates a unique identification for domain name group information, stores the domain name group information and stores registrant information and resolution information associated with the domain names, and feeds back a processing result to the registration client terminal. The resolution server acquires the domain names in the domain name group and resolution data shared by the domain names, and writes the domain names and the resolution data into resolution files according to top-level domain suffixes.
    Type: Application
    Filed: December 20, 2012
    Publication date: July 2, 2015
    Applicant: Computer Network Information Center, Chinese Academy of Sciences
    Inventors: Jiagui Xie, Hongtao Li, Weiping Yang, Chao Qi
  • Patent number: 9003008
    Abstract: Embodiments of the present invention provide a domain name system as well as an information processing method and apparatus of the domain name system. The information processing method includes: receiving a domain name system query request sent by a recursive server, where the domain name system query request includes identifier information of a terminal device that sends the query request; resolving the received domain name system query request to obtain the identifier information of the terminal device; and exercising query control according to the identifier information of the terminal device. In the domain name system as well as the information processing method and apparatus of the domain name system, the domain name system query request carries the identifier information of the terminal device that sends the query request, and therefore, effective control is exercised on the information query actions of the terminal device in the domain name system.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: April 7, 2015
    Assignee: Computer Network Information Center, Chinese Academy of Science
    Inventors: Wei Mao, Xiaodong Li, Yan Wang, Tao Chen, Shuo Shen, Liming Wang