MULTI-OBJECT POSITIONING USING MIXTURE DENSITY NETWORKS

    公开(公告)号:WO2022178473A1

    公开(公告)日:2022-08-25

    申请号:PCT/US2022/070281

    申请日:2022-01-21

    Abstract: Certain aspects of the present disclosure provide techniques for object positioning using mixture density networks, comprising: receiving radio frequency (RF) signal data collected in a physical space; generating a feature vector encoding the RF signal data by processing the RF signal data using a first neural network; processing the feature vector using a first mixture model to generate a first encoding tensor indicating a set of moving objects in the physical space, a first location tensor indicating a location of each of the moving objects in the physical space, and a first uncertainty tensor indicating uncertainty of the locations of each of the moving objects in the physical space; and outputting at least one location from the first location tensor.

    UNSUPERVISED LOCATION ESTIMATION AND MAPPING BASED ON MULTIPATH MEASUREMENTS

    公开(公告)号:WO2023086912A1

    公开(公告)日:2023-05-19

    申请号:PCT/US2022/079680

    申请日:2022-11-11

    Abstract: Certain aspects of the present disclosure provide methods, apparatus, and systems for predicting a location of a device in a spatial environment using a machine learning model. An example method generally includes measuring a plurality of signals received from a network entity at a device. A channel state information (CSI) measurement is generated from the measured plurality of signals. Generally, the CSI measurement includes a multipath component. Positions of one or more anchors in a spatial environment are identified based on a machine learning model trained to identify the positions of the one or more anchors based on the CSI measurement. A location of the device is estimated based on the identified positions of the one or more anchors.

    MODEL COMPRESSION VIA QUANTIZED SPARSE PRINCIPAL COMPONENT ANALYSIS

    公开(公告)号:WO2023059723A1

    公开(公告)日:2023-04-13

    申请号:PCT/US2022/045785

    申请日:2022-10-05

    Abstract: A processor-implemented method includes retrieving, for a layer of a set of layers of an artificial neural network (ANN), a dense quantized matrix representing a codebook and a sparse quantized matrix representing linear coefficients. The dense quantized matrix and the sparse quantized matrix may be associated with a weight tensor of the layer. The processor-implemented method also includes determining, for the layer of the set of layers, the weight tensor based on a product of the dense quantized matrix and the sparse quantized matrix. The processor-implemented method further includes processing, at the layer, an input based on the weight tensor.

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