Patents by Inventor Chenwei Liu
Chenwei Liu 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).
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Publication number: 20260120432Abstract: are disclosed. A pill identification request, including one or more images of a pill and a user identifier of a user associated with the pill, is received. A first machine learning system is used to generate one or more image embeddings based on the one or more images. The user identifier is used to retrieve claims data of the user, and the claims data are encoded to generate a claims embedding. A second machine learning system is used to identify the pill based on the one or more image embeddings and the claims embedding. A response to the pill identification request is generated based on the identifying.Type: ApplicationFiled: December 23, 2025Publication date: April 30, 2026Applicant: Optum, Inc.Inventors: Laura D. HAMILTON, Vinit GARG, Ayush TOMAR, Fazle Shahnawaz Muhibul KARIM, Chenwei LIU
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Patent number: 12536773Abstract: Systems and methods for pill identification based on image and user claims data are provided. A pill identification request, including one or more images of a pill and a user identifier of a user associated with the pill, is received. A first machine learning system is used to generate one or more image embeddings based on the one or more images. The user identifier is used to retrieve claims data of the user, and the claims data are encoded to generate a claims embedding. A second machine learning system is used to identify the pill based on the one or more image embeddings and the claims embedding. A response to the pill identification request is generated based on the identifying.Type: GrantFiled: June 29, 2023Date of Patent: January 27, 2026Assignee: Optum, Inc.Inventors: Laura D. Hamilton, Vinit Garg, Ayush Tomar, Fazle Shahnawaz Muhibul Karim, Chenwei Liu
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Publication number: 20250287548Abstract: A disclosed server liquid cooling system includes a chassis coolant manifold housed in a base portion of a chassis below a PCB of the chassis. The chassis coolant manifold is adapted to cool server hardware on the PCB by circulating a liquid coolant throughout channels below the PCB between a coolant inlet and a coolant outlet.Type: ApplicationFiled: March 11, 2024Publication date: September 11, 2025Inventors: Rick Chun Kit CHEUNG, ChenWei LIU, Unnikrishnan VADAKKANMARUVEEDU
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Publication number: 20250190806Abstract: Various embodiments of the present disclosure provide methods, apparatus, systems, computing devices, computing entities, and/or the like for providing content item suggestions based on historical search data of a user by: generating one or more content item feature vectors associated with a plurality of content items from a list of suggestions, generating one or more personalized feature vectors associated with the user based on user activity data, generating a plurality of predictions for the plurality of content items based on the one or more keyword feature vectors and the one or more personalized feature vectors, assigning a plurality of rankings to the plurality of content items based on the plurality of prediction probabilities, and generating one or more suggestions based on the plurality of rankings.Type: ApplicationFiled: December 7, 2023Publication date: June 12, 2025Inventors: Ayush Tomar, Chenwei Liu
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Publication number: 20250190805Abstract: Various embodiments of the present disclosure provide methods, apparatus, systems, computing devices, computing entities, and/or the like for generating (i) a first label set representative of a selection of a content item based on search session data and (ii) a second label set representative of one or more transactions associated with the content item based on transaction data. A dominant label set is determined from the plurality of label sets based on an occurrence frequency associated with the first label set and the second label set. Based on an occurrence of an event associated with the dominant label set, either a first label associated with the dominant label set is assigned to first search query-content item record pairs associated with a training dataset, or one or more stochastic labels from the plurality of label sets are assigned to second search query-content item record pairs associated with the training dataset.Type: ApplicationFiled: December 7, 2023Publication date: June 12, 2025Inventors: Ayush Tomar, Chenwei Liu
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Publication number: 20250181611Abstract: Various embodiments of the present disclosure provide methods, apparatus, systems, computing devices, computing entities, and/or the like for providing suggestion keywords based on historical search data of a user by: generating one or more keyword feature vectors associated with a plurality of keywords from a list of suggestion keywords, generating one or more personalized feature vectors associated with the user based on search session data, generating a plurality of predictions of the user selecting the plurality of keywords based on the one or more keyword feature vectors and the one or more personalized feature vectors, assigning a plurality of rankings to the plurality of keywords based on the plurality of prediction probabilities, and generating one or more typeahead suggestion keywords based on the plurality of rankings.Type: ApplicationFiled: December 4, 2023Publication date: June 5, 2025Inventors: Chenwei Liu, Xianshi Wei, Ayush Tomar, Vinit Garg
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Publication number: 20250005899Abstract: Systems and methods for pill identification based on image and user claims data are disclosed. A pill identification request, including one or more images of a pill and a user identifier of a user associated with the pill, is received. A first machine learning system is used to generate one or more image embeddings based on the one or more images. The user identifier is used to retrieve claims data of the user, and the claims data are encoded to generate a claims embedding. A second machine learning system is used to identify the pill based on the one or more image embeddings and the claims embedding. A response to the pill identification request is generated based on the identifying.Type: ApplicationFiled: June 29, 2023Publication date: January 2, 2025Applicant: Optum, Inc.Inventors: Laura D. HAMILTON, Vinit GARG, Ayush TOMAR, Fazle Shahnawaz Muhibul KARIM, Chenwei LIU
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Patent number: 12147761Abstract: Systems and methods for improved spelling checking are disclosed. A method includes receiving a search query from a user device and determining that the search query does not exist in a data store that stores (a) a corpus of correctly spelled words or (b) forced correction mapping data. The method further includes, in response to the determining, determining a plurality of suggested search queries generated by a plurality of respective spell corrector models, selecting a suggested search query determined using a spell corrector model from the plurality of spell corrector models based on at least one of a frequency of the suggested search query in historical search data or a weightage associated with the spell corrector model, and causing the suggested search query to be displayed on the user device.Type: GrantFiled: July 20, 2023Date of Patent: November 19, 2024Assignee: Optum, Inc.Inventors: Laura D. Hamilton, Vinit Garg, Ayush Tomar, Fazle Shahnawaz Muhibul Karim, Chenwei Liu
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Patent number: 12105014Abstract: The present disclosure provides a mechanical property detection device and a force detection system, and relates to the technical field of hydrate experiment equipment. The mechanical property detection device includes a reaction kettle, a thrust mechanism, and a force detection sensor; a reaction platform and a reaction frame provided on the reaction platform are provided in the reaction kettle, an end of the thrust mechanism extends into the reaction kettle, and can push the reaction frame to move relative to the reaction platform, and the force detection sensor is configured to detect magnitude of a thrust of the thrust mechanism when pushing the reaction frame, so as to solve the technical problems such as inconvenience in testing an adhesive force of gas hydrate in the prior art.Type: GrantFiled: January 24, 2022Date of Patent: October 1, 2024Assignee: CHINA UNIVERSITY OF PETROLEUMInventors: Chenwei Liu, Zhiyuan Wang, Yongfei Mi, Ci Yan
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Publication number: 20240281604Abstract: Systems and methods for improved spelling checking are disclosed. A method includes receiving a search query from a user device and determining that the search query does not exist in a data store that stores (a) a corpus of correctly spelled words or (b) forced correction mapping data. The method further includes, in response to the determining, determining a plurality of suggested search queries generated by a plurality of respective spell corrector models, selecting a suggested search query determined using a spell corrector model from the plurality of spell corrector models based on at least one of a frequency of the suggested search query in historical search data or a weightage associated with the spell corrector model, and causing the suggested search query to be displayed on the user device.Type: ApplicationFiled: July 20, 2023Publication date: August 22, 2024Inventors: Laura D. HAMILTON, Vinit GARG, Ayush TOMAR, Fazle Shahnawaz Muhibul KARIM, Chenwei LIU
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Patent number: 11981777Abstract: A new synthetic pathway for hyperbranched polyacrylates and polymethacrylates including the steps of preparing an inimer and polymerizing the inimer to form hyperbranched polymers or copolymers.Type: GrantFiled: August 20, 2019Date of Patent: May 14, 2024Assignee: The University of AkronInventors: Coleen Pugh, Chenwei Liu, Cesar Lopez Gonzalez, Chenying Zhao
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Publication number: 20240020783Abstract: A mining eco-environment damage evaluation method, a mining eco-environment damage evaluation system, and a storable medium are provided. The method includes: acquiring a data source to obtain an eco-environment influence factor; obtaining evaluation index information of the mining eco-environment damage; constructing a mine ecological destruction and environmental pollution loss system; establishing n loss evaluation models; and performing loss calculation on different loss evaluation models, thereby realizing damage evaluation on the mining eco-environment. The method combines actual eco-environment problems, selects key evaluation indexes emphatically, and improves evaluation accuracy based on reducing evaluation calculation amount.Type: ApplicationFiled: June 6, 2023Publication date: January 18, 2024Applicant: Nanjing Institute of Environmental Sciences,MEEInventors: Weibo MA, Haidong LI, Lijun ZHAO, Nan WANG, Shaogang LEI, Chenwei LIU, Longjiang ZHANG
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Publication number: 20230409670Abstract: A method and a system to analyze the driving relationship between ecosystem service and urban agglomeration development are provided. The spatial-temporal evolution characteristics of ESV in the Yangtze River Delta urban agglomeration are analyzed based on the revised equivalent value coefficient and land use data, the driving characteristics and the driving influence evolution characteristics of 10 indicators of human activities and natural conditions on ESV are explored through RF and SEM, an interaction relationship among influencing factors of ESV and the direct and indirect driving effect of the influencing factors on ESV are quantitatively measured under a unified framework, and the ESV evolution mode and the driving mechanism of the urban agglomeration are explored. The method can deeply study the interaction relationship among the influencing factors of the ESV, as well as the driving characteristics and driving paths of the driving factors to the ESV.Type: ApplicationFiled: May 31, 2023Publication date: December 21, 2023Applicant: Nanjing Institute of Environmental Sciences,MEEInventors: Weibo MA, Haidong LI, Lijun ZHAO, Nan WANG, Shaogang LEI, Chenwei LIU, Longjiang ZHANG
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Publication number: 20220146407Abstract: The present disclosure provides a mechanical property detection device and a force detection system, and relates to the technical field of hydrate experiment equipment. The mechanical property detection device includes a reaction kettle, a thrust mechanism, and a force detection sensor; a reaction platform and a reaction frame provided on the reaction platform are provided in the reaction kettle, an end of the thrust mechanism extends into the reaction kettle, and can push the reaction frame to move relative to the reaction platform, and the force detection sensor is configured to detect magnitude of a thrust of the thrust mechanism when pushing the reaction frame, so as to solve the technical problems such as inconvenience in testing an adhesive force of gas hydrate in the prior art.Type: ApplicationFiled: January 24, 2022Publication date: May 12, 2022Applicant: CHINA UNIVERSITY OF PETROLEUMInventors: Chenwei LIU, Zhiyuan WANG, Yongfei MI, Ci YAN
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Publication number: 20200055995Abstract: A new synthetic pathway for hyperbranched polyacrylates and polymethacrylates including the steps of preparing an inimer and polymerizing the inimer to form hyperbranched polymers or copolymers.Type: ApplicationFiled: August 20, 2019Publication date: February 20, 2020Inventors: Coleen Pugh, Chenwei Liu, Cesar Lopez Ganzalez, Chenying Zhao