Abstract: A wireless sensing method and systems based on compressed beamforming reports (CBR) are provided. The method includes performing channel sounding and transmit (TX) beamforming; performing sniffing or extracting information from Wi-Fi traffic; and performing multi-path estimation. The performing multi-path estimation includes performing multi-path modeling with CBR to analyze relationship between signal propagation characteristics and information in CBR by modeling a multi-path channel based on uplink and downlink steering matrices. The performing multi-path modeling with CBR includes performing multi-path modeling with CBR from physical paths to channel state information (CSI) and subsequently from CSI to CBR. The performing multi-path estimation further includes performing maximum likelihood multi-path estimation.

Abstract: A method of detecting a text, a training method, a device, and a medium are provided, which relate to a field of artificial intelligence, in particular to large language models, deep learning, text processing, etc. The training method includes: when a confidence level of a first sample detection result output by a first model is less than a threshold, processing a sample text pair and a sample label by using an initial model to obtain a second sample detection result, the second sample detection result includes a discrimination result configured to characterize a response matching degree between a sample answer text and a sample query text included in the sample text pair, and a discrimination reason; obtaining a first loss value according to the second sample detection result and the sample label; and adjusting a model parameter of the initial model based on the first loss value.

Abstract: A method of training a text retrieval model, which relates to fields of artificial intelligence, deep learning, large language model, natural language understanding and retrieval technologies, includes: inputting a sample text to be queried into a first text retrieval model to obtain a first output text mark; and training the first text retrieval model according to a text-mark label of the sample text and the first output text mark, where the sample text corresponds to a first target reference text, the text-mark label is a reference text mark of the first target reference text, a plurality of reference text marks are determined according to a reference text sequence determined according to semantics of the reference texts, and the first text retrieval model is trained using the reference texts and the corresponding reference text marks, so as to output a reference text mark corresponding to a reference text.

Abstract: A cooling garment, including a garment body (1) and an external-air introducing three-dimensional member (2); and the external-air introducing three-dimensional member (2) includes a base material (2a), a side-wall material (2b) enabling an opening portion to be open during wearing, and an opening portion support material (2c). The three-dimensional member arranged on the garment enables a large amount of external air to be introduced into the internal portion of the garment, even to an exhausting area thereof, especially during movement, thus improving efficiency of air entry and exhaust.

Abstract: A near field communication (NFC) system and method for controlling transmission power of the NFC system includes a NFC reader configured to transmit a radio frequency (RF) signal having an initial amount of RF power, a NFC target device in selective communication with the NFC reader, and a NFC transmission power control platform disposed between the NFC reader and the NFC target device. The platform includes a microcontroller and at least one circuit in communication with the microcontroller and configured to determine an actual amount of RF power needed to sustain near field communications between the NFC reader and the NFC target device and configured to regulate the RF signal, where the regulated RF signal contains the actual amount of RF power needed to sustain near field communications between the NFC reader and the NFC target device.

Abstract: A near field communication (NFC) system and method for controlling transmission power of the NFC system includes a NFC reader configured to transmit a radio frequency (RF) signal having an initial amount of RF power, a NFC target device in selective communication with the NFC reader, and a NFC transmission power control platform disposed between the NFC reader and the NFC target device. The platform includes a microcontroller and at least one circuit in communication with the microcontroller and configured to determine an actual amount of RF power needed to sustain near field communications between the NFC reader and the NFC target device and configured to regulate the RF signal, where the regulated RF signal contains the actual amount of RF power needed to sustain near field communications between the NFC reader and the NFC target device.