Abstract: The present disclosure provides a method and device for monitoring generation of coal mine vibration and its response to vibration wave, the device comprises a frame, a vibration triggering device, an surface building model, an surface monitoring system, and an underground monitoring system. The present disclosure can simulate the mechanical process and phenomenon of high-energy and strong vibrations triggered by the fracture of the high-level thick-hard rock layers.

Abstract: An adaptive robot for vehicles is provided, including an active centrifugal force counteracting structure and a controller. The active centrifugal force counteracting structure includes a first base plate, a support seat, a swing frame, multiple swing arms and a first screw motor assembly. The upper side of the support seat has a first mounting seat. The outer side of the swing frame has a plurality of pin shafts, one end of each swing arm is rotatably connected to one of the pin shafts of the swing frame, and the other end of each swing arm is rotatably connected to the first mounting seat. The first screw motor assembly is configured to drive the swing frame to perform rolling motion according to a first control signal sent by the controller to compensate for a centrifugal force.

Abstract: In a method for acetylene hydrochlorination to vinyl chloride catalyzed by ultra-low content aurum-based material, a nitrogen-modified activated carbon support is obtained by using 1,10-phenanthroline as a modifier. A trace amount of aurum is used as a main active component and an organic solvent with a low polarity and a low boiling point, isopropanol, is used as a solvent. An ultra-low content of aurum-based catalyst with the aurum loading amount of 0.01 wt % using the above nitrogen-modified activated carbon as a support is prepared by improving the synthesis procedure, and the efficiency of the catalyst is significantly improved. The catalyst has high activity and vinyl chloride selectivity for acetylene hydrochlorination to vinyl chloride, which is low cost, no mercury pollution, simple in preparation process and expansibility, and has great industrial application value.

Abstract: Techniques for evaluating a user experience experiment designed to use one user experience variant selected from a number of user experience variants as a global-best user experience variant to be used across users relative to a machine model trained to use user data to identify a user-preferred user experience variant. Disclosed systems and methods provide techniques for optimizing user response. In one embodiment, a global-best user experience variant is evaluated by comparing an aggregate user response determined for the global-best user experience variant to an aggregate user response determined using user response predictions determined using the trained machine model, and using the outcome of the comparison to make a recommendation as to which one of the global-best user experience variant and the trained machine model to adopt for providing a user experience to users.

Abstract: Disclosed is a video generation method in the fields of deep learning, large models, natural language processing and computer vision. The video generation method includes: obtaining text information to be processed, and segmenting the text information to be processed into sentences to obtain target sentences; selecting video shots matching the target sentences respectively from video shots in a material library as candidate materials corresponding to the target sentences respectively; for the target sentences, performing the following processing respectively: determining a screening method corresponding to a target sentence according to a position of the target sentence in the text information to be processed, selecting a target material for generating a required target video from the candidate materials corresponding to the target sentence according to the screening method; and generating the target video based on the target materials corresponding to the target sentences, respectively.

Abstract: A multi-degree-of-freedom active damping mechanism control method, system and a damping mechanism are provided. A skyhook active damping control algorithm is used for controlling an electric cylinder output force in a vertical damping direction, and an adaptive control algorithm with an adaptive rate is used for correcting a load moment of inertia in pitch and roll damping directions. At the same time, a predictive model is established according to a task space linearization equation near an equilibrium point, and states of the system at N future moments are predicted in advance at each moment to achieve optimal control under complex constraints and reduce the influence of system delay. At the same time, the three control methods may further improve the active damping effect of the damping device by combining road information obtained by a visual sensor in real time.

Abstract: Method of flotation separation for copper-sulfur polymetallic ore includes: S1, an ore grinding treatment is carried out on a raw ore to obtain a ground ore material with the exposure ratio of 112, 204, 312 facets of chalcopyrite of 55%-65%, 5%-18%, and 3%-10% respectively, and the exposure ratio of 100 facet of pyrite of 60%-80%; S2, the ground ore material, the collector A, the depressant B and the frother are mixed and undergo one-time roughing, so as to obtain the rougher concentrate and the rougher tailings; S3, the rougher concentrate and the collector A are mixed and undergo multiple-time cleaning to obtain the copper concentrate; and S4, the cascade-intensified flotation is carried out on the rougher tailings to obtain a sulfur-containing tailings, wherein the collector A includes and the depressant B includes sodium cyanamide, sodium dicyandiamide, sodium polycyanamide and sodium polysulfide.

Abstract: The present teaching relates to managing online experiments. In one example, a plurality of experiment layers is created with respect to a plurality of online users. Each experiment layer includes at least one experiment each of which includes one or more buckets associated with respective features to be experimented on. Each of the plurality of online users is assigned to a corresponding bucket in each experiment layer, such that the user is simultaneously associated with multiple experiments in different layers. User event data related to the plurality of experiment layers are collected from the plurality of online users. One or more contaminated buckets are automatically detected based on the user event data.

Abstract: Provided are a video editing method, an electronic device and a medium. The video editing method includes: acquiring a first video; cutting the first video to obtain a plurality of segments; determining a plurality of labels respectively corresponding to the plurality of segments, each label among the plurality of labels selected from one of a first label, a second label, a third label or a fourth label, where the first label indicates singing, where the second label indicates speaking, where the third label indicates background music, and where the fourth label indicates a segment that does not correspond to the first label, the second label or the third label; determining a singing segment set based on the plurality of labels, the singing segment set including consecutive segments among the plurality of segments that correspond to the first label; and generating a second video based on the singing segment set.

Abstract: The present disclosure relates to the field of data visualization technologies, and discloses a data analysis method and apparatus, a computer device, and a storage medium. The present disclosure provides a data analysis method, including: displaying a data analysis page, where the data analysis page includes a data analysis control; obtaining a data analysis statement based on interaction with the data analysis control, and displaying the data analysis statement on the data analysis page; and displaying a message card representing an attribution result on the data analysis page based on the data analysis statement, where the message card includes a data display area and an analysis result display area, the data display area is configured to display to-be-attributed data corresponding to the data analysis statement, and the analysis result display area is configured to display attribution result details corresponding to the to-be-attributed data.

Abstract: The present disclosure relates to the field of data visualization technologies, and discloses a data query method and apparatus, a computer device, and a storage medium. The present disclosure provides a data query method, including: displaying a data query page, where the data query page includes a data query control; obtaining a data query statement based on an interaction with the data query control, and displaying the data query statement on the data query page; and displaying, on the data query page based on the data query statement, a message card representing a query result, where the message card includes a query condition area and a visual display area, the query condition area is configured to display a query condition corresponding to the data query statement, and the data visual display area is configured to display data corresponding to the query condition.

Abstract: An apparatus system and method are provided for use in acquiring data from fluid within a region of material in a heap leaching application. The apparatus includes one or more sensor strings provided in a region of material to be analysed. Each sensor string includes a data cable and two or more solid-state sensors positioned along the length of the data cable. The sensors are adapted to periodically acquire sensor data relating to chemical properties of the fluid surrounding the sensor over a predetermined period of time and to transmit the sensor data via the data cable to one or more hubs.

Abstract: The present teaching relates to managing online experiments. In one example, a plurality of experiment layers is created with respect to a plurality of online users. Each experiment layer includes at least one experiment each of which includes one or more buckets associated with respective features to be experimented on. Each of the plurality of online users is assigned to a corresponding bucket in each experiment layer, such that the user is simultaneously associated with multiple experiments in different layers. User event data related to the plurality of experiment layers are collected from the plurality of online users. One or more contaminated buckets are automatically detected based on the user event data.

Abstract: A spiking neuron reinforcing circuit and a spiking neuron reinforcing method are provided.

Abstract: Disclosed is a video generation method in the fields of deep learning, large models, natural language processing and computer vision. The video generation method includes: obtaining text information to be processed, and segmenting the text information to be processed into sentences to obtain target sentences; selecting video shots matching the target sentences respectively from video shots in a material library as candidate materials corresponding to the target sentences respectively; for the target sentences, performing the following processing respectively: determining a screening method corresponding to a target sentence according to a position of the target sentence in the text information to be processed, selecting a target material for generating a required target video from the candidate materials corresponding to the target sentence according to the screening method; and generating the target video based on the target materials corresponding to the target sentences, respectively.

Abstract: Provided are a video editing method, an electronic device and a medium. The video editing method includes: acquiring a first video; cutting the first video to obtain a plurality of segments; determining a plurality of labels respectively corresponding to the plurality of segments, each label among the plurality of labels selected from one of a first label, a second label, a third label or a fourth label, where the first label indicates singing, where the second label indicates speaking, where the third label indicates background music, and where the fourth label indicates a segment that does not correspond to the first label, the second label or the third label; determining a singing segment set based on the plurality of labels, the singing segment set including consecutive segments among the plurality of segments that correspond to the first label; and generating a second video based on the singing segment set.

Abstract: The present teaching generally relates to identifying data bucket overlap with online experiments. In a non-limiting embodiment, first data representing a first set of identifiers associated with a first data bucket of a first online experiment may be obtained. Second data representing a second set of identifiers associated with a second data bucket of the first online experiment may be obtained. Based on the first data and the second data, a first number of identifiers that are associated with the first data bucket and the second data bucket may be determined. In response to determining that the first number exceeds a threshold, a data flag indicating that results associated with the first online experiment are inconsistent may be generated.

Abstract: The present teaching generally relates to detecting providing pre-validated data buckets for online experiments. In a non-limiting embodiment, user activity data representing user activity for a first plurality of user identifiers may be obtained. A first set of values and a second values, representing first and second user engagement parameters, respectively, may be generated for each user identifier based on the user activity data. A first ranking and a second ranking may be determined for the first and second sets, respectively. A first exclusion range including a first number of values to be removed from the first and second sets may be determined. A homogenous value set may be generated by removing the first number of values from the first and second sets, where each value from the homogenous value set corresponds to a user identifier available to be placed in a data bucket for an online experiment.

Abstract: Methods, systems, and computer-readable media for an e-commerce document framework with cross-source and cross-document validation are disclosed. A document framework system determines a document template associated with a request to generate a document comprising a record of one or more transactions. The document template indicates a plurality of data sources that store a plurality of data elements for the document and a plurality of validation tasks. The document framework system receives the plurality of data elements for the document from the plurality of data sources. The document framework system performs the validation tasks to determine the correctness of the data elements. The validation comprises cross-source validation and cross-document validation. The document framework system generates the document based (at least in part) on the data elements if the validation is successful.