Abstract: Disclosed are a method and system for intelligent source tracing of organic pollution of a water body, which belongs to the technical field of environmental analytical chemistry. The method comprises: acquiring organic matter analysis and detection data from water samples of a polluted water body through high performance liquid chromatography-tandem mass spectrometry; performing high-throughput screening on the organic matter in the water samples according to said data to determine pollutants; identifying pollution sources by means of network analysis according to the determined pollutants; and according to the identified pollution sources and the organic pollutants, determining key pollutants and quantifying the pollution contributions thereof by using a machine learning classification model.

Abstract: A portable charging case, including an unlocking assembly and a push rod, user can push the unlocking assembly in the direction towards the storage space after the portable lighting device is fully charged. The push rod then pushes the magnetic charging device away from the portable lighting device so that the magnetic charging device disconnects from the portable lighting device. Users can take the portable lighting device out from the charging case more quickly and easily, thereby enhancing user experience for using the charging case.

Abstract: Disclosed are a method and system for intelligent source tracing of organic pollution of a water body, which belongs to the technical field of environmental analytical chemistry. The method comprises: acquiring organic matter analysis and detection data from water samples of a polluted water body through high performance liquid chromatography-tandem mass spectrometry; performing high-throughput screening on the organic matter in the water samples according to said data to determine pollutants; identifying pollution sources by means of network analysis according to the determined pollutants; and according to the identified pollution sources and the organic pollutants, determining key pollutants and quantifying the pollution contributions thereof by using a machine learning classification model.

Abstract: The present disclosure relates to a photosensitive structure and a mobile lighting device. The photosensitive structure includes a head housing, and a metal substrate, a lens, a shading bowl, and a light sensor that are located in the head housing. The metal substrate, the lens, and the light sensor are all fixed in the head housing, and the metal substrate is located between the lens and the light sensor, the metal substrate is electrically connected to the light sensor. The shading bowl is fixed to the metal substrate and located between the metal substrate and the lens. Along a light incoming direction, the photosensitive structure is provided with a light inlet located outside a projection of the shading bowl on the metal substrate, the light sensor is configured to sense an external brightness through the light inlet.

Abstract: A discourse-level text translation method and device, the method comprising: acquiring a text to be translated, the text to be translated being a unit text in a discourse-level text to be translated (S101); acquiring an associated text of the text to be translated, the associated text including at least one of a preceding source text, a following source text, and a preceding target text (S102); and translating, according to the associated text, the text to be translated (S103).

Abstract: A speech recognition method and related products are provided. The method includes acquiring a to-be-recognized speech and a configured hot word library; determining, based on the to-be-recognized speech and the hot word library, an audio-related feature used at a current decoding time instant; determining, based on the audio-related feature, a hot word-related feature used at the current decoding time instant from the hot word library; and determining, based on the audio-related feature and the hot word-related feature, a recognition result of the to-be-recognized speech at the current decoding time instant.

Abstract: A method and a system for end-to-end modeling are provided. The method includes: determining a topological structure of a target-based end-to-end model, where the topological structure includes an input layer, an encoding layer, an code enhancement layer, a filtering layer, a decoding layer and an output layer; the code enhancement layer adds information of a target unit to a feature sequence outputted by the encoding layer, the filtering layer filters a feature sequence added with the information of the target unit; collecting multiple pieces of training data; and training parameters of the target-based end-to-end model by using the multiple pieces of the training data.

Abstract: A portable charging case, including an unlocking assembly and a push rod, user can push the unlocking assembly in the direction towards the storage space after the portable lighting device is fully charged. The push rod then pushes the magnetic charging device away from the portable lighting device so that the magnetic charging device disconnects from the portable lighting device. Users can take the portable lighting device out from the charging case more quickly and easily, thereby enhancing user experience for using the charging case.

Abstract: Disclosed is a method for high-throughput screening of non-target biomarkers based on metabolic disturbance caused by pollutants, belonging to the field of environmental exposure and health.

Abstract: Disclosed is a method for high-throughput screening of non-target biomarkers based on metabolic disturbance caused by pollutants, belonging to the field of environmental exposure and health.

Abstract: A multifunctional flashlight support, including a base, a connecting rod assembly and an optical component; the base is connected with the optical component through the connecting rod assembly, a flashlight is installed in a detachable way on the base, and the optical component abuts against the light outlet of the flashlight to serve for changing the light direction of the flashlight. The flashlight is installed on the base of the support, and the direction of light from the flashlight is changed through the optical component, so the original unidirectional direction of the light beam from the flashlight can be changed through the optical component or the light beam is further dispersed to achieve the floodlighting effect, and the flashlight turns into a desk lamp, or a camping light or a wall light giving a wider lighting range, with the lighting function achieved when it is not held by hand.

Abstract: A discourse-level text translation method and device, the method comprising: acquiring a text to be translated, the text to be translated being a unit text in a discourse-level text to be translated (S101); acquiring an associated text of the text to be translated, the associated text including at least one of a preceding source text, a following source text, and a preceding target text (S102); and translating, according to the associated text, the text to be translated (S103).

Abstract: A method, a device and a storage medium for evaluating speech quality include: receiving speech data to be evaluated; extracting evaluation features of the speech data to be evaluated; performing quality evaluation to the speech data to be evaluated according to the evaluation features of the speech data to be evaluated and a predetermined speech quality evaluation model, in which the speech quality evaluation model is an indication of a relationship between evaluation features of single-ended speech data and quality information of the single-ended speech data.

Abstract: A multifunctional flashlight support, including a base, a connecting rod assembly and an optical component; the base is connected with the optical component through the connecting rod assembly, a flashlight is installed in a detachable way on the base, and the optical component abuts against the light outlet of the flashlight to serve for changing the light direction of the flashlight. The flashlight is installed on the base of the support, and the direction of light from the flashlight is changed through the optical component, so the original unidirectional direction of the light beam from the flashlight can be changed through the optical component or the light beam is further dispersed to achieve the floodlighting effect, and the flashlight turns into a desk lamp, or a camping light or a wall light giving a wider lighting range, with the lighting function achieved when it is not held by hand.

Abstract: A method and associated system for modifying an image on a display screen. A first line and a second line are generated in an original image being displayed on the display screen. The first line and the second line pass through a first point and a second point, respectively, in the original image. The first line and the second line divide the original image into a first area, a second area, and a strip area between the first area and the second area. Hiding a portion of the strip area is performed by either removing the visibility of the strip area from the display screen or displaying the portion of the strip area on the display screen in lower resolution than before the hiding is performed.

Abstract: A method and a system for end-to-end modeling are provided. The method includes: determining a topological structure of a target-based end-to-end model, where the topological structure includes an input layer, an encoding layer, an code enhancement layer, a filtering layer, a decoding layer and an output layer; the code enhancement layer adds information of a target unit to a feature sequence outputted by the encoding layer, the filtering layer filters a feature sequence added with the information of the target unit collecting multiple pieces of training data; and training parameters of the target-based end-to-end model by using the multiple pieces of the training data.

Abstract: A method and associated system for modifying an image on a display screen. A first line and a second line are generated in an original image being displayed on the display screen. The first line and the second line pass through a first point and a second point, respectively, in the original image. The first line and the second line divide the original image into a first area, a second area, and a strip area between the first area and the second area. Hiding a portion of the strip area is performed by either removing the visibility of the strip area from the display screen or displaying the portion of the strip area on the display screen in lower resolution than before the hiding is performed.

Abstract: A method and associated system for modifying an image on a display screen. While an original image is being displayed on the display screen, a first point and a second point in the original image are received. A first line and a second line are generated in the original image. The first line and the second line pass through the first point and the second point, respectively, in the original image. The first line and the second line divide the original image into a first area, a second area, and a strip area between the first area and the second area. Hiding a portion of the strip area is performed by either removing the visibility of the strip area from the display screen or displaying the portion of the strip area on the display screen in lower resolution than before the hiding is performed.

Abstract: An intelligent scoring method and system for a text objective question, the method comprising: acquiring an answer image of a text objective question (101); segmenting the answer image to obtain one or more segmentation results of an answer string to be identified (102); determining whether any of the segmentation results has the same number of characters as the standard answer (103); if no, the answer is determined to be wrong (106); otherwise, calculating identification confidence of the segmentation result having the same number of words as the standard answer, and/or calculating the identification confidence of respective characters in the segmentation result having the same number of words as the standard answer (104); determining whether the answer is correct according to the calculated identification confidence (105). The method can automatically score text objective questions, thus reducing consumption of human resource, and improving scoring efficiency and accuracy.

Abstract: A method, a device and a storage medium for evaluating speech quality include: receiving speech data to be evaluated; extracting evaluation features of the speech data to be evaluated; performing quality evaluation to the speech data to be evaluated according to the evaluation features of the speech data to be evaluated and a predetermined speech quality evaluation model, in which the speech quality evaluation model is an indication of a relationship between evaluation features of single-ended speech data and quality information of the single-ended speech data.