Abstract: Disclosed in the embodiments of the present disclosure are a method and a device for constructing decision trees. A particular embodiment of the method comprises: sending, to at least one client, a request for acquiring statistical information of attribute information of a target category; receiving the statistical information of attribute information of the target category of samples stored by the clients; generating split point information according to the statistical information of attribute information of the target category of samples respectively stored by the clients, and sending the split point information to the at least one client.

Abstract: A pool cleaner is provided. The pool cleaner includes a housing, a water pump, a power supply, and a switch for controlling start/stop of the water pump, where the power supply is electrically connected to the water pump; a lower portion of the housing is provided with a suction port; the housing is provided with a discharge port and a water inlet; the suction port and the discharge port are connected via a tube; the water inlet communicates with a water discharge passage; the water discharge passage communicates with the tube; and the water pump is configured to drive liquid flow from the water inlet to the water discharge passage. The pool cleaner has the following advantages. No additional components such as impeller are disposed inside the entire tube, allowing large particles to pass smoothly.

Abstract: The present invention provides compounds of Formula (I) which can be used as Syk inhibitors and potently as therapeutic agents against diseases mediated by Syk.

Abstract: An optical fiber fault location method is disclosed. A management device may determine a faulty logical fiber in an optical network based on fiber cut alarm information of the optical network. Further, the management device determines, based on an optical fiber mapping relationship of the optical network, a faulty optical fiber associated with the faulty logical fiber, obtains a fault physical location of a fault point in the faulty optical fiber, and outputs the fault physical location. In this way, a process of manually checking a drawing based on the faulty logical fiber to determine the faulty optical fiber corresponding to the faulty logical fiber is avoided, and a process of manually detecting the physical location in the faulty optical fiber on site is avoided. This helps improve optical fiber fault location efficiency in the optical network, and reduce fault recovery time of the optical network.

Abstract: A series-parallel fluid switching structure, a fluid pump, and a pool cleaner are provided. The series-parallel fluid switching structure includes a first cavity, a second cavity, and a switching mechanism, where the first cavity is provided with a first water inlet, and the second cavity is provided with a second water inlet; a first passage is disposed between the first cavity and the second cavity; the first passage includes an inlet communicating with the first cavity and an outlet communicating with the second cavity; the first passage is provided with a first water outlet communicating with an external environment; the second cavity is provided with a second water outlet; the switching mechanism is configured to control opening/closing of the first water outlet, opening/closing of the outlet of the first passage, and opening/closing of the second water inlet.

Abstract: The present invention provides a compound suitable for use as an acetyl CoA carboxylase (ACC) inhibitor, specifically, a thienopyridine derivative, and use of the compound in the preparation of drugs for treating metabolic disorders, cancers or other proliferative disorders, and nonalcoholic steatohepatitis (NASH).

Abstract: A network topology generation method includes: obtaining original coordinate information of each topology node in a first topology diagram, where the original coordinate information includes a first coordinate of each topology node in the first topology diagram, and topology nodes in the first topology diagram include a first node, a second node, and a third node; and generating a second topology diagram, where the second topology diagram corresponds to a topology diagram obtained by scaling the first topology diagram, a second coordinate of the second node is obtained using a second coordinate of the first node as a reference point, and a second coordinate of the third node is obtained using the second coordinate of the second node as a reference point.

Abstract: A compound of formula (I) or (Ia), or a tautomer or a pharmaceutically acceptable salt thereof is provided. Compounds of formula (II) to (V), or a tautomer or a pharmaceutically acceptable salt thereof are also provided. These compounds and the pharmaceutical compositions containing them are useful for the treatment of diseases such as obesity, hyperlipidemia, hypercholesterolemia and diabetes and other related disorders and diseases, and may be useful for other diseases such as NASH, atherosclerosis, cardiovascular diseases, hypothyroidism, thyroid cancer and other disorders and diseases related thereto.

Abstract: An anomaly detection method for time series data includes: obtaining a plurality of pieces of feature information of time series data; generating a target feature combination based on the plurality of pieces of feature information; and performing anomaly result detection based on the target feature combination.

Abstract: A method for determining a spatial relationship, includes: obtaining a calculation request for the spatial relationship, the calculation request including a polygonal region and a set of report points; determining a plurality of first coded values corresponding to the polygonal region; determining a plurality of second coded values corresponding to the set of report points and a group of report points corresponding to each of the plurality of second coded values; determining a second coded value matching each of the plurality of first coded values by sorting and matching the plurality of first coded values and the plurality of second coded values respectively; and determining a relationship between the polygonal region and each report point in the set of report points according to a group of report points corresponding to the second coded value matching each of the plurality of first coded values.

Abstract: A mannose derivative is an isonitrile-containing mannose derivative of formula (I), including different linking groups X: A radioactive preparation is provided, including a radiolabeled compound formed by radiolabeling the mannose derivative with a radionuclide. An application of the radioactive preparation in the diagnosis and treatment of tumors is also provided.

Abstract: A self-priming jet pump includes a pump body provided with a water inlet and a water outlet. A jet tube and an impeller are arranged in the pump body. The jet tube is communicated with the water inlet and an inlet of an impeller. A first channel is arranged on the outer periphery of the jet tube. The first channel is communicated with the water inlet and the impeller. A cross-section of the first channel is a closed or open annular structure, and the first channel is around the outer periphery of the jet tube. The first channel is provided with a valve core. When a pressure at the water inlet is greater than a predetermined pressure at the impeller, the valve core moves to switch on the first channel. A cavitation problem is relieved by arranging the flow-increasing channel.

Abstract: An anomaly detection method for time series data includes: obtaining a plurality of pieces of feature information of time series data; generating a target feature combination based on the plurality of pieces of feature information; and performing anomaly result detection based on the target feature combination.

Abstract: A method for determining a spatial relationship, includes: obtaining a calculation request for the spatial relationship, the calculation request including a polygonal region and a set of report points; determining a plurality of first coded values corresponding to the polygonal region; determining a plurality of second coded values corresponding to the set of report points and a group of report points corresponding to each of the plurality of second coded values; determining a second coded value matching each of the plurality of first coded values by sorting and matching the plurality of first coded values and the plurality of second coded values respectively; and determining a relationship between the polygonal region and each report point in the set of report points according to a group of report points corresponding to the second coded value matching each of the plurality of first coded values.

Abstract: A network topology generation method includes: obtaining original coordinate information of each topology node in a first topology diagram, where the original coordinate information includes a first coordinate of each topology node in the first topology diagram, and topology nodes in the first topology diagram include a first node, a second node, and a third node; and generating a second topology diagram, where the second topology diagram corresponds to a topology diagram obtained by scaling the first topology diagram, a second coordinate of the second node is obtained using a second coordinate of the first node as a reference point, and a second coordinate of the third node is obtained using the second coordinate of the second node as a reference point.

Abstract: A mannose derivative is an isonitrile-containing mannose derivative of formula (I), including different linking groups X: A radioactive preparation is provided, including a radiolabeled compound formed by radiolabeling the mannose derivative with a radionuclide. An application of the radioactive preparation in the diagnosis and treatment of tumors is also provided.

Abstract: Disclosed are a method and an apparatus for model training and data enhancement, an electronic device and a storage medium. A generative adversarial network model includes a generator and two discriminators, an output of the generator is used as an input of the two discriminators, the method including: generating, by the generator, reference sample data; calculating, by the first discriminator, a first distance between the reference sample data and preset negative sample data; calculating, by the second discriminator, a second distance between negative class data composed of the reference sample data and the preset negative sample data and preset positive sample data; determining an objective function based on the first distance and the second distance; and training the generative adversarial network model by using the objective function until the generative adversarial network model converges, to obtain the generative adversarial network model.

Abstract: Disclosed herein is a benzene ring-containing glucose derivative of formula (I): where R1 is each independently and R2 is hydrogen. This application also provides a radioactive drug, including a complex formed by the benzene ring-containing glucose derivative and a radionuclide. Use of the benzene ring-containing glucose derivative in the tumor treatment and diagnosis is further provided.