Patents by Inventor Da Xu
Da Xu 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: 11955381Abstract: Methods for pre-cleaning substrates having metal and dielectric surfaces are described. A temperature of a pedestal comprising a cooling feature on which a substrate is located is set to less than or equal to 100° C. The substrate is exposed to a plasma treatment to remove chemical residual and/or impurities from features of the substrate including a metal bottom, dielectric sidewalls, and/or a field of dielectric and/or repair surface defects in the dielectric sidewalls and/or the field of the dielectric. The plasma treatment may be an oxygen plasma, for example, a direct oxygen plasma. Processing tools and computer readable media for practicing the method are also described.Type: GrantFiled: June 22, 2020Date of Patent: April 9, 2024Assignee: Applied Materials, Inc.Inventors: Yi Xu, Yufei Hu, Kazuya Daito, Geraldine M. Vasquez, Da He, Jallepally Ravi, Yu Lei, Dien-Yeh Wu
-
Publication number: 20240073287Abstract: Embodiments of the present disclosure provide a method for activating at least a first edge server and a second edge server. The first edge server includes a first service processor, and the second edge server includes a second service processor. The method includes establishing a data communication connection between the first service processor and the second service processor, establishing a data communication connection between the first service processor and a specified website, establishing a trusted communication between the first service processor and the specified website, establishing a trusted communication between the first service processor and the second service processor, obtaining an activation right from the specified website by the first service processor, and performing the activation right to activate the first edge server and the second edge server by the first service processor.Type: ApplicationFiled: August 31, 2023Publication date: February 29, 2024Inventors: Ming LEI, Haijun XU, Zhipeng GAO, Da LI, Shaohua LI
-
Publication number: 20230273802Abstract: An interface display method, an interface display apparatus, an electronic device and a medium are provided. The interface display method includes: for a list item in a data object list, creating an interface container proxy and arranging an interface data object of the list item in the interface container proxy; in response to a first update operation on a display interface, binding the interface container proxy to a corresponding interface container on the display interface if the first update operation is configured to instruct updating the list item to the display interface for display; and displaying the interface data object of the list item in the interface container proxy in a region that is on the display interface and that corresponds to the interface container according to a binding relationship between the interface container and the interface container proxy.Type: ApplicationFiled: July 2, 2021Publication date: August 31, 2023Inventors: Jingkai SUN, Peng WANG, Da XU
-
Publication number: 20230273936Abstract: A method for performing disaster recovery in a clustered environment comprises identifying, at a master device, a first indexer from a set of indexers to serve as a primary indexer for responding to queries pertaining to a subset of data. The method also comprises assigning, at the master device, a generation identifier indicating that the first indexer is the primary indexer for the subset of data. Responsive to an event prompting a change in a primary indexer designation for the subset of data, the method comprises identifying, at the master device, a second indexer from the set of indexers to serve as the primary indexer for responding to queries pertaining to the subset of data. Further, the method comprises assigning, at the master device, a new generation identifier indicating that the second indexer is the primary indexer for the subset of data.Type: ApplicationFiled: May 5, 2023Publication date: August 31, 2023Inventors: Da XU, Sundar VASAN, Dhruva Kumar BHAGI
-
Publication number: 20230267524Abstract: Systems and methods including one or more processors and one or more non-transitory computer readable media storing computing instructions that, when executed on the one or more processors, cause the one or more processors to perform: receiving a user request via a graphical user interface, the user request corresponding to a user search query for a product; determining whether a first processing machine of the system is operating in a first processing mode or a second processing mode; when the first processing machine is determined to be operating in the first processing mode, analyzing the user request via the first processing machine and using a process, to identify a candidate recommendation system to utilize by: determining a randomized strategy for one or more candidate recommendation systems based on a ratio of a number of the one or more candidate recommender systems, the randomized strategy to be stored in a collected history data; determining model parameters based on the collected history data; andType: ApplicationFiled: January 21, 2022Publication date: August 24, 2023Applicant: Walmart Apollo, LLCInventors: Da Xu, Jianpeng Xu, Sushant Kumar, Evren Korpeoglu, Kannan Achan
-
Publication number: 20230245207Abstract: System and method for time-aware deep learning are provided. A training data set including continuous-time data and a deep learning architecture are received. A trained deep learning model is generated using a temporal kernel approach. The temporal kernel approach includes constructing a temporal kernel based on the continuous-time data and composing the temporal kernel with a selected hidden layer of the deep learning architecture to generate a hidden output. The trained deep learning model is output for use in one or more machine learning tasks.Type: ApplicationFiled: January 31, 2022Publication date: August 3, 2023Inventors: Da Xu, Evren Korpeoglu, Sushant Kumar, Kannan Achan
-
Publication number: 20230245346Abstract: A corner marking method, a parameter calibration method, and an electronic device are provided. The corner marking method includes: acquiring a target image, the target image including at least a portion of a target chessboard; detecting corners in the target image; performing a chessboard reconstruction based on detected corners to acquire a reconstructed chessboard; if the reconstructed chessboard contains one or more of tagging squares, acquiring one of the tagging squares of the reconstructed chessboard as a reference square; acquiring an identification and orientation of the reference square based on a tag of the reference square; marking corners in the reconstructed chessboard based on the identification and orientation of the reference square. Even if the target image does not contain a complete target chessboard, the corner marking method described in the present disclosure is still capable of marking corners in the target image.Type: ApplicationFiled: January 30, 2023Publication date: August 3, 2023Inventors: Da XU, Jihui XIE
-
Patent number: 11675810Abstract: A method for performing disaster recovery in a clustered environment comprises identifying, at a master device, a first indexer from a set of indexers to serve as a primary indexer for responding to queries pertaining to a subset of data. The method also comprises assigning, at the master device, a generation identifier indicating that the first indexer is the primary indexer for the subset of data. Responsive to an event prompting a change in a primary indexer designation for the subset of data, the method comprises identifying, at the master device, a second indexer from the set of indexers to serve as the primary indexer for responding to queries pertaining to the subset of data. Further, the method comprises assigning, at the master device, a new generation identifier indicating that the second indexer is the primary indexer for the subset of data.Type: GrantFiled: April 12, 2021Date of Patent: June 13, 2023Assignee: SPLUNKINC.Inventors: Da Xu, Sundar Vasan, Dhruva Kumar Bhagi
-
Patent number: 11640635Abstract: This application relates to apparatus and methods for automatically identifying substitute items. A computing device can generate matrix data that identifies connection values between a plurality of items. The matrix data may be generated based on the application of one or more machine learning algorithms to historical data identifying accepted or denied item substitutions. The computing device may then receive item data identifying at least one second item and at least one attribute of that second item. The computing device may generate a graph based on the matrix data and the item data to determine connection values between the second item and the plurality of first items. The computing device may then determine a substitute item (e.g., a replacement item) for the second item based on the connection values between the second item and the plurality of first items.Type: GrantFiled: June 18, 2021Date of Patent: May 2, 2023Assignee: Walmart Apollo, LLCInventors: Da Xu, Chuanwei Ruan, Kamiya Motwani, Evren Korpeoglu, Sushant Kumar, Kannan Achan
-
Patent number: 11473162Abstract: The invention relates to a carburizing bearing steel and a preparation method thereof. The carburizing bearing steel of the invention comprises: 0.18˜0.24 wt % of C, 0.4˜0.6 wt % of Cr, 0.20˜0.40 wt % of Si, 0.40˜0.70 wt % of Mn, 1.6˜2.2 wt % of Ni, 0.15˜0.35 wt % of Mo, 0.001˜0.01 wt % of S, 0.001˜0.015 wt % of P, 0˜0.20 wt % of Nb, 0˜0.20 wt % of V and the remaining is iron, wherein the contents of Nb and V are not 0 at the same time. In the invention, an appropriate amount of Nb and V is added in combination with other elements so as to refine the grain size, inhibit the generation of large granular carbides in the steel during carburization and improve the uniformity of the microstructure of steel materials, thus further enhancing the contact fatigue life of the carburizing bearing steel.Type: GrantFiled: February 26, 2021Date of Patent: October 18, 2022Assignee: CENTRAL IRON & STEEL RESEARCH INSTITUTEInventors: Wenquan Cao, Feng Yu, Cunyu Wang, Haifeng Xu, Hui Wang, Da Xu, Yuqing Weng
-
Patent number: 11468489Abstract: System and method for generating a ranked list are disclosed. A plurality of prior interactions for a first customer are received by a computing device. Each of the prior interactions includes a product interaction and time. A ranked list of item recommendations is generated based on the plurality of prior interactions. The ranked list of item recommendations is generated by a trained prediction model trained using temporal information embedded into a finite-dimensional vector space. The ranked list of item recommendations is output by the computing device.Type: GrantFiled: October 31, 2019Date of Patent: October 11, 2022Assignee: WALMART APOLLO, LLCInventors: Da Xu, Chuanwei Ruan, Evren Korpeoglu, Sushant Kumar, Kannan Achan
-
Publication number: 20220291326Abstract: A system and a method for event recognition comprising the steps of reading a signal transmitted over a defined space, wherein the signal reading includes signal information arranged to be affected by an event within the defined space; processing the signal information with a matching engine, wherein the engine is arranged to match the signal information with one or more associated event labels to recognize the event within the defined space.Type: ApplicationFiled: September 1, 2020Publication date: September 15, 2022Inventors: Jian Zhang, Yi Da Xu, Zhenguo Shi
-
Publication number: 20220261873Abstract: A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions configured to run on the one or more processors and perform generating one or more item relational graphs for one or more items based on historical user purchases; transforming, using spectral filtering, the one or more item relational graphs into one or more frequency signals to remove noise from the one or more frequency signals; constructing, using a machine learning model, one or more item pair label classifications for one or more item pairs of the one or more items; generating a respective similarity score for each of the one or more item pairs; outputting a top k results for the one or more item pairs ranked by the respective similarity scores; and re-ranking, using a re-ranking algorithm, the top k results of the one or more item pairs based on a user preference for display on a user interface of an electronic device of a user. Other embodiments are disclosed.Type: ApplicationFiled: January 31, 2021Publication date: August 18, 2022Applicant: Walmart Apollo, LLCInventors: Da Xu, Venugopal Mani, Chuanwei Ruan, Sushant Kumar, Kannan Achan
-
Publication number: 20220253721Abstract: A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions that, when executed on the one or more processors, perform certain acts. The acts can include obtaining training data. The acts also can include training candidate recommendation models and an adversarial exposure model using the training data. The acts additionally can include generating recommendations based on a selected recommendation model of the candidate recommendation models. Other embodiments are described.Type: ApplicationFiled: January 30, 2021Publication date: August 11, 2022Applicant: Walmart Apollo, LLCInventors: Da Xu, Chuanwei Ruan, Sushant Kumar, Evren Korpeoglu, Kannan Achan
-
Publication number: 20220190269Abstract: The present disclosure provides an image sensor, which may include a driving layer, a negative electrode layer formed in the driving layer, a N-region layer formed above the negative electrode layer. The N-region layer includes multiple cylindrical structures formed of semiconductor materials. The image sensor may also include a light absorption layer formed above the N-region layer. The light absorption layer is composed of a multi-layer structure including a P-region layer formed using quantum dot semiconductor materials. The image sensor may further include a positive electrode layer formed above the light absorption layer and configured to receive incoming light signals.Type: ApplicationFiled: November 18, 2021Publication date: June 16, 2022Applicant: Rockchip Electronics Co., Ltd.Inventors: Huabing XU, Qiang NI, Gang WANG, Chuyi CHEN, Fayao ZHENG, Da XU, Mingpei LIU
-
Patent number: 11321801Abstract: The present disclosure provides a GPU-based third-order low-rank tensor completion method. Operation steps of the method includes: (1) transmitting, by a CPU, input data DATA1 to a GPU, and initializing the loop count t=1; (2) obtaining, by the GPU, a third-order tensor Yt of a current loop t based on the least squares method; (3) obtaining, by the GPU, a third-order tensor Xt of the current loop t based on the least squares method; (4) checking, by the CPU, whether an end condition is met; and if the end condition is met, turning to (5); otherwise, increasing the loop count t by 1 and turning to (2) to continue the loop; and (5) outputting, by the GPU, output data DATA2 to the CPU. In the present disclosure, in the third-order low-rank tensor completion, a computational task with high concurrent processes is accelerated by using the GPU to improve computational efficiency.Type: GrantFiled: March 13, 2020Date of Patent: May 3, 2022Assignee: Tensor & Deep Learning Lab L.L.C.Inventors: Tao Zhang, Da Xu, Xiaoyang Liu
-
Publication number: 20220017983Abstract: The invention relates to a carburizing bearing steel and a preparation method thereof. The carburizing bearing steel of the invention comprises: 0.18˜0.24 wt % of C, 0.4˜0.6 wt % of Cr, 0.20˜0.40 wt % of Si, 0.40˜0.70 wt % of Mn, 1.6˜2.2 wt % of Ni, 0.15˜0.35 wt % of Mo, 0.001˜0.01 wt % of S, 0.001˜0.015 wt % of P, 0˜0.20 wt % of Nb, 0˜0.20 wt % of V and the remaining is iron, wherein the contents of Nb and V are not 0 at the same time. In the invention, an appropriate amount of Nb and V is added in combination with other elements so as to refine the grain size, inhibit the generation of large granular carbides in the steel during carburization and improve the uniformity of the microstructure of steel materials, thus further enhancing the contact fatigue life of the carburizing bearing steel.Type: ApplicationFiled: February 26, 2021Publication date: January 20, 2022Applicant: CENTRAL IRON & STEEL RESEARCH INSTITUTEInventors: Wenquan CAO, Feng YU, Cunyu WANG, Haifeng XU, Hui WANG, Da XU, Yuqing WENG
-
Publication number: 20210371944Abstract: The invention relates to the technical field of microstructure refinement and homogenization of bearing steel, and specifically relates to a high-carbon bearing steel and a method of preparing same. The high-carbon bearing steel of the invention has the following chemical composition: C: 0.80˜1.20 wt %, Cr: 0.40˜2.0 wt %, Mn: 0.15˜0.75 wt %, Si: 0.15˜0.75 wt %, Nb: 0˜0.20 wt %, Mo: 0˜0.20 wt %, V: 0˜0.20 wt %, P?0.015 wt %, S?0.01 wt %, the remaining is Fe and unavoidable impurities; the contents of Nb, Mo and V are not 0 at the same time. According to the invention, microalloying elements such as Nb, Mo and V, in combination with other elements, are added into the high-carbon bearing steel to effectively refine the bearing steel matrix and promote the precipitation of a large amount of nano-carbides, thereby enhancing the contact fatigue life of the high-carbon bearing steel.Type: ApplicationFiled: February 25, 2021Publication date: December 2, 2021Applicant: CENTRAL IRON & STEEL RESEARCH INSTITUTEInventors: Wenquan CAO, Yuqing WENG, Haifeng XU, Cunyu WANG, Feng YU, Hui WANG, Zhiyue SHI, Da XU
-
Patent number: 11150639Abstract: A method, system, and computer program product, include recording high-frequency wave data of local arid adjacent fault curves of a power grid to compare the high-frequency wave data with historical fault data to detect an actual fault region in the power grid, the power grid having a plurality of sensors distributed in the power grid, each sensor being upstream of one adjacent sensor and downstream of an other adjacent sensor.Type: GrantFiled: February 26, 2019Date of Patent: October 19, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xin Jie Lv, Lingyun Wang, Wei Da Xu, Chao Zhang, Ke Xu Zou
-
Publication number: 20210312526Abstract: This application relates to apparatus and methods for automatically identifying substitute items. A computing device can generate matrix data that identifies connection values between a plurality of items. The matrix data may be generated based on the application of one or more machine learning algorithms to historical data identifying accepted or denied item substitutions. The computing device may then receive item data identifying at least one second item and at least one attribute of that second item. The computing device may generate a graph based on the matrix data and the item data to determine connection values between the second item and the plurality of first items. The computing device may then determine a substitute item (e.g., a replacement item) for the second item based on the connection values between the second item and the plurality of first items.Type: ApplicationFiled: June 18, 2021Publication date: October 7, 2021Inventors: Da XU, Chuanwei RUAN, Kamiya MOTWANI, Evren KORPEOGLU, Sushant KUMAR, Kannan ACHAN