Patents by Inventor Miaomiao CHENG

Miaomiao CHENG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12292947
    Abstract: The present disclosure provides an inversion method for determining a pollution source list based on artificial intelligence and big data, an inversion system for determining the pollution source list based on artificial intelligence and big data, and applications thereof, which provides basic data support for government sectors to formulate relevant environmental protection measures. The specific technical solution employed in the present disclosure is as follows: finding out an emission source that makes the highest contribution to the pollutant concentration of any cell with an advanced 3D CNN artificial intelligence algorithm based on artificial intelligence and big data, establishing a model of the relationship between pollutant concentration and emission, and finding out the relationship between pollutant concentration and emission with machine learning technology, i.e., estimating an emission from a given pollutant concentration, and estimating a pollutant concentration from a given emission.
    Type: Grant
    Filed: July 22, 2024
    Date of Patent: May 6, 2025
    Assignees: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES, SHENZHEN QIANHAI QIMING TECHNOLOGY CO., LTD.
    Inventors: Wei Tang, Yang Li, Jian Gao, Zhongzhi Zhang, Xiaohui Du, Yang Yu, Xuezhi Dai, Jun Xu, Shijie Liu, Miaomiao Cheng, Yunlang Wang, Dazhi Wu
  • Publication number: 20250103204
    Abstract: Implementations for performing workload-aware space reclamation are provided. One example includes a computing system comprising: processing circuitry and memory storing instructions that, during execution, causes the processing circuitry to: track extent usage characteristics for each of a plurality of extents storing data for a graph database; and perform memory reclamation to reclaim storage areas corresponding to invalid data, wherein performing the memory reclamation comprises: generating a list of extents to be reclaimed based on the tracked extent usage characteristics; and reclaiming memory space on the plurality of extents in order based on the list of extents.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Inventors: Cheng Chen, Wei Zhang, Zhigang Zeng, Shijiao Yang, Bingyu Zhou, Huiming Zhu, Chao Chen, Yongjun Zhao, Yingqian Hu, Miaomiao Cheng, Meng Li, Hongfei Tan, Mengjin Liu, Hexiang Lin, Shuai Zhang, Lei Zhang
  • Publication number: 20250103654
    Abstract: Implementations for a space-optimized graph database system are provided. One implementation includes a computing system comprising: processing circuitry and memory storing instructions that causes the processing circuitry to: store a graph database comprising an initial tree graph storing a plurality of data entries, each data entry comprising a respective field identifier; receive a query to update the graph database, wherein the query comprises a request to add a new data entry; determine a splitting event to perform based on one or more predetermined criteria; generate a new tree graph corresponding to a field identifier of the new data entry by splitting off a subset of the plurality of data entries of the initial tree graph, wherein the subset comprises all data entries of the initial tree graph that correspond to the field identifier of the new data entry; and update the new tree graph in accordance with the query.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Inventors: Cheng Chen, Wei Zhang, Zhigang Zeng, Shijiao Yang, Bingyu Zhou, Huiming Zhu, Chao Chen, Yongjun Zhao, Yingqian Hu, Miaomiao Cheng, Meng Li, Hongfei Tan, Mengjin Liu, Hexiang Lin, Shuai Zhang, Lei Zhang
  • Publication number: 20250103613
    Abstract: Implementations for I/O efficient synchronization on a graph database are provided. One example includes a computing system comprising: processing circuitry and memory storing instructions that, during execution, causes the processing circuitry to: implement the graph database using at least: a read-write node and a read-only node operating in cache memory; and a shared storage for data persistence, wherein the shared storage stores a mapping table of the graph database; receive an update query; update the read-write node based on the update query; write, using the read-write node, a set of logs corresponding to the update query to a write-ahead log journal in the shared storage; and retrieve, using the read-only node, the set of logs from the write-ahead log journal.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Inventors: Cheng Chen, Wei Zhang, Zhigang Zeng, Shijiao Yang, Bingyu Zhou, Huiming Zhu, Chao Chen, Yongjun Zhao, Yingqian Hu, Miaomiao Cheng, Meng Li, Hongfei Tan, Mengjin Liu, Hexiang Lin, Shuai Zhang, Lei Zhang
  • Publication number: 20250053484
    Abstract: The present disclosure relates to a data recovery method, a storage medium, and an electronic device. The method includes: receiving a notification message sent by a computing node in a distributed graph computing system, where the notification message represents that the corresponding computing node successfully stores current checkpoint data in a persistent memory; generating a checkpoint identifier corresponding to a current checkpoint when determining that all computing nodes in the distributed graph computing system successfully store the current checkpoint data in respective persistent memories; and sending the checkpoint identifier to each computing node, so that each computing node associates the checkpoint identifier with the current checkpoint data stored in the persistent memory, and the associated current checkpoint data is used for data recovery during recovery execution before the corresponding computing node obtains a checkpoint identifier corresponding to a next checkpoint.
    Type: Application
    Filed: July 22, 2024
    Publication date: February 13, 2025
    Inventors: Miaomiao CHENG, Jiujian CHEN, Cheng ZHAO, Cheng CHEN, Yongmin HU, Xiaoliang CONG, Liang QIN, Hexiang LIN, Ronghua LI, Guoren WANG, Shuai ZHANG, Lei ZHANG