Abstract: Implementations of the present specification describe an intention identification model training method and apparatus, and an intention identification method and apparatus. According to the methods in the implementations, training of a target question can be weakened in the first several rounds of model training, and then an intention identification model obtained in the first several rounds of training can be used to identify intentions corresponding to answers that are to be distinguished. Further, the intention identification model is trained again after labels of these intentions are reset, so that the intention identification model obtained through training can also have a good identification effect on an answer to the target question, thereby improving accuracy of intention identification.

Abstract: Implementations of the present specification disclose an event risk detection method, apparatus, and device.

Abstract: A device and method for testing bearing capacity of single-row grouped pillars in a horizontal goaf under biaxial loading is disclosed. Four fixed rings are arranged on testing machine base, and have stands installed therein respectively, bottom ends of the stands are connected with the base, top ends are connected with transverse frame, sliding rails are arranged on two sides of the base; the vertical force loading devices are arranged at a lower part of transverse frame and the horizontal force loading devices are arranged at inner sides of side frame. Simultaneous loading on multiple coal samples, rock samples, filling body samples, concrete samples, coal-filling samples and/or rock-filling samples can be achieved, the overall bearing capacity of a single-row group pillar system in the horizontal goaf under the biaxial compression condition can be obtained, and the mutual influence relation between grouped pillar individuals in the horizontal goaf can be attained.

Abstract: Techniques are described that enable and assist a social networking system in curating user generated content for publication without relying on a popularity or following of a creator of the content. In some cases, the social networking system may receive a content item generated by a user and determine one or more content centric metrics associated with the content item. The social networking system may then select content items for publication based on the associated content centric metrics.

Abstract: Disclosed are various embodiments for a distributed code tracing system that provides code tracing as a service in a multi-tenant computing environment. In one embodiment, a code trace is received that is associated with a request submitted to a particular application hosted in a computing environment, where multiple applications are hosted in the computing environment. The code trace documents calls to multiple component services of the particular application in order to respond to the request. The code trace is then stored in a data store that is indexed by a unique identifier of the request.

Abstract: A loading system for a Hopkinson pressure bar test under water-gas-temperature multi-field coupling action includes: a sample sealed cabin which includes sealing flanges, Y-shaped and high-temperature resistant sealing rings, and a sealed cabin body; a gas pressure loading device which includes a high-pressure gas tank, a pressure regulating valve, a second barometer, a second high-pressure valve and a first three-way valve connected in sequence; a water pressure loading device which includes an electric pressure test water pump, a water pressure gauge, an accumulator and a one-way valve connected in sequence; a temperature loading device which includes thermocouple heating rods, a temperature display and a thermocouple temperature control circuit board connected in sequence; and a dynamic and static combined loading device which includes an axial pressure loading device, an impact loading device and a Hopkinson pressure bar member.

Abstract: Techniques for distributed tracing for batch workloads using trace linking are described. A method of distributed tracing for batch workloads using trace linking includes generating a decorator by a batch trace manager, the decorator identifying at least one first trace to be linked to at least one second trace, the at least one second trace corresponding to a message processed by a child service in a provider network, sending the decorator to a distributed tracing service in the provider network, and adding a virtual trace to a virtual trace map by the distributed tracing service, the virtual trace linking the at least one first trace and the at least one second trace.

Abstract: A device and method for testing bearing capacity of single-row grouped pillars in a horizontal goaf under biaxial loading is disclosed. Four fixed rings are arranged on testing machine base, and have stands installed therein respectively, bottom ends of the stands are connected with the base, top ends are connected with transverse frame, sliding rails are arranged on two sides of the base; the vertical force loading devices are arranged at a lower part of transverse frame and the horizontal force loading devices are arranged at inner sides of side frame. Simultaneous loading on multiple coal samples, rock samples, filling body samples, concrete samples, coal-filling samples and/or rock-filling samples can be achieved, the overall bearing capacity of a single-row group pillar system in the horizontal goaf under the biaxial compression condition can be obtained, and the mutual influence relation between grouped pillar individuals in the horizontal goaf can be attained.

Abstract: Disclosed are various embodiments for a distributed code tracing system that provides code tracing as a service in a multi-tenant computing environment. In one embodiment, a code trace is received that is associated with a request submitted to a particular application hosted in a computing environment, where multiple applications are hosted in the computing environment. The code trace documents calls to multiple component services of the particular application in order to respond to the request. The code trace is then stored in a data store that is indexed by a unique identifier of the request.

Abstract: Disclosed are various embodiments for a distributed code tracing system that provides code tracing as a service in a multi-tenant computing environment. In one embodiment, a code trace is received that is associated with a request submitted to a particular application hosted in a computing environment, where multiple applications are hosted in the computing environment. The code trace documents calls to multiple component services of the particular application in order to respond to the request. The code trace is compressed using time-based compression. The compressed code trace is then stored in a data store that is indexed by a unique identifier of the request.

Abstract: Disclosed are various embodiments for a distributed code tracing system that provides code tracing as a service in a multi-tenant computing environment. In one embodiment, a code trace is received that is associated with a request submitted to a particular application hosted in a computing environment, where multiple applications are hosted in the computing environment. The code trace documents calls to multiple component services of the particular application in order to respond to the request. The code trace is compressed using time-based compression. The compressed code trace is then stored in a data store that is indexed by a unique identifier of the request.

Abstract: A chassis for a four-wheel drive vehicle is presented. The vehicle chassis has a front sub-chassis assembly, rear front sub-chassis assembly, front hinge assembly, rear hinge assembly, main chassis frame, an independent powertrain sub-assembly for each wheel and electronic control system. The sub-chassis assembly can rotate about the axis of the hinge assembly. Each powertrain sub-assembly is controlled by the electronic control system. With torque vectoring control of the electronic control system, various combinations of driving and braking torque of each wheel can be achieved. The front sub-chassis assembly and the rear sub-chassis assembly can therefore rotate in clockwise or counter clockwise, which make the vehicle steer or translate even without conventional steering mechanisms.