Abstract: A computer-implemented method is presented for enabling hierarchical conversational policy learning for sales strategy planning. The method includes enabling a user to have a conversation with a robot via a conversation platform, employing a plan database to store general plans used in the conversation, employing an industry database to store a plurality of candidate plans pertaining to sales promotions, and employing a plan and policy optimizer to allow the robot to select and output an optimal plan from the plurality of candidate plans, the optimal plan determined by hierarchical reinforcement learning via a first learner and a second learner, the first leaner selecting the optimal plan and the second learner selecting an optimal action.

Abstract: Computer-implemented methods, computer program products, and system facilitating evaluation of a progress of a diagnosis process are provided. The computer-implemented method comprises: obtaining, by a device operatively coupled to one or more processing units, a list of symptom(s); retrieving, by the device, a sub-graph associated with the list of symptom(s) from a knowledge graph; extracting, by the device, a list of feature(s) from the retrieved sub-graph; estimating, by the device, an average number of inquiries based on the extracted list of feature(s); and calculating, by the device, the progress of the diagnosis process based on the estimated average number of inquiries.

Abstract: A wearable display device includes a wearing device, a linking-lever set, a bracket and an optical imaging device. The linking-lever set includes a first rod and a second rod, and the first rod is pivotally connected to the wearing device and the second rod, respectively. The bracket is fixedly connected to the optical imaging device, and is pivotally connected to the second rod of the at least one linking-lever set.

Abstract: An object tracking method includes: obtaining at least one image acquired by at least one image acquisition device; obtaining a first appearance feature of a target object and a first spatial-temporal feature of the target object based on the at least one image; obtaining an appearance similarity and a spatial-temporal similarity between the target object and each global tracking object in a currently recorded global tracking object queue; based on determining that the target object matches a target global tracking object based on the appearance similarity and the spatial-temporal similarity, allocating a target global identifier corresponding to the target global tracking object to the target object; determining, using the target global identifier, a plurality of associated images acquired by a plurality of image acquisition devices associated with the target object; and generating, based on the plurality of associated images, a tracking trajectory matching the target object.

Abstract: An embolization device and a coil thereof (10, 20, 30) are disclosed. The coil (10, 20, 30) is formed by joining together at least four structural elements arranged in different planes, which include at least two C-shaped elements (12) and at least one O-shaped element (13) or ?-shaped (11) element. The at least two C-shaped elements (12) are arranged in two adjacent planes and are sequentially joined together to form an S-shaped structure. The embolization device preferably includes plurality of coils (10, 20, 30) which are joined together side-by-side and end-to-end, wherein in any adjacent two coils (10, 20, 30), one is swivelable about an axis of the embolization device with respect to the other. The ?-shaped element is structurally stable, allowing the coil (10, 20, 30) to maintain good structural stability. At the same time, the three-dimensional S-shaped structure has good deflectability, which imparts high compliance to the coil (10, 20, 30).

Abstract: The present invention refers to a process for a transition metal, particularly nickel-catalyzed cyanation reaction of aryl/vinyl halide using organic nitrile compounds. This new reaction provides a strategically distinct approach to the safe preparation of aryl/vinyl cyanides, which are essential compounds in agrochemistry and medicinal chemistry.

Abstract: The present disclosure relates to an information providing method for an on-demand service. The method may include receiving service request information from a passenger of a passenger terminal device. The service request information may include a departure location of the passenger. The method may further include acquiring historical service request information related to the passenger; and determining travel-route-related information based at least in part on the departure location of the passenger and the historical service request information. Also disclosed is a system for implementing the method.

Abstract: A dual-shaft clutch varying speed device includes a drive unit, an input shaft, an output shaft, a housing, at least an odd-numbered clutch unit and at least an even-numbered clutch unit. The input shaft having an input gear is coupled with the drive unit. The output shaft, having an end thereof penetrate through the input shaft and the drive unit, has at least an odd-numbered output gear and at least an even-numbered output gear. The housing has a housing gear. The at least one odd-numbered clutch unit being furnished at the inner part of the housing has an odd-numbered clutch shaft and an odd-numbered clutch gear which is meshed with the odd-numbered output gear. The at least one odd-numbered clutch unit has an even-numbered clutch shaft and an even-numbered clutch gear which is meshed with the even-numbered output gear.

Abstract: A clock and data recovery device and a jitter tolerance enhancement method thereof are provided. The clock and data recovery device includes a clock and data recovery circuit and a jitter tolerance enhancement circuit. A data input terminal of the clock and data recovery circuit is suitable for receiving a data signal. The clock and data recovery circuit recovers the data signal to a clock. The jitter tolerance enhancement circuit is coupled to the data input terminal of the clock and data recovery circuit to receive the data signal. The jitter tolerance enhancement circuit detects a correlation between the data signal and the clock and correspondingly adjusts a loop gain of the clock and data recovery circuit according to the correlation.

Abstract: The present disclosure relates to systems and methods for determining target search results associated with a target query. The method may include obtaining a transportation service request including a target address query from a user terminal, and determining a plurality of candidate points of interest (POIs) associated with the target address query. The method may also include identifying one or more target POIs based on the candidate POIs by using a trained identification model. The trained identification model may be configured to provide a correlation probability for each of the one or more target POIs with the target address query. The method may further include ranking some or all of the one or more target POIs to produce a ranking result based on the correlation probabilities, and transmitting the ranking result to the user terminal.

Abstract: A head-mounted display device includes a display assembly, a rotating assembly, and a fixed assembly. The rotating assembly is connected to the display assembly and includes a motor holder, a motor and a first connecting element. The motor is disposed on the motor holder. The first connecting element has a first accommodating portion and a second accommodating portion, wherein the first connecting element receives a part of the motor and the second connecting element receives a part of the motor holder. The fixed assembly is connected to the rotating assembly. The rotating assembly rotates the display assembly relative to the fixed assembly.

Abstract: Methods and systems for managing an online application database and application search. Search queries for applications are received from users. Unfulfilled queries are stored in memory. The platform identifies one or more application features based on the search queries within the stored unfulfilled queries, and generates an application build recommendation specifying the one or more application features. The application build recommendation is output to one or more developer accounts. If a new application is received, the platform may determine whether the new application contains features that sufficiently correspond to the features in one of the application build recommendations. User accounts that submitted the unfulfilled queries that served as the basis for the matching application build recommendation may be notified of the availability of the new application.

Abstract: A glucose sensor electrode, a preparation method therefor and the use thereof are provided for the rapid and sensitive detection of glucose. The method involves: (1) performing an alkali heat treatment to form a nanoneedle-structured titanium dioxide on the surface of a titanium electrode; (2) forming micro-region grooves on a nanoneedle-structured titanium dioxide film layer to obtain a nanoneedle-structured titanium dioxide having a micropattern; (3) depositing a chlorine-doped polypyrrole in the grooves by using chronopotentiometry; (4) forming a nanocone-structured citric-acid-doped polypyrrole on the chlorine-doped polypyrrole by using chronopotentiometry; and (5) grafting an enzyme capable of detecting glucose to obtain the glucose sensor electrode. This simple and stable process is low in cost, efficiently grafts the enzyme capable of detecting glucose on the surface of the electrode, provides a stable electrode with higher reliability for detecting glucose.

Abstract: A display panel including a substrate, a plurality of first pixels and a plurality of second pixels is provided. The substrate has a first display region and a second display region. The first pixels are disposed on the first display region. The second pixels are disposed on the second display region. The ratio of the transmittance of the second pixels to the transmittance of the first pixels is 0.33 to 0.66.

Abstract: A planar transformer includes a primary winding including a first primary winding layer, a secondary winding including a first secondary winding layer, where an Ns1th turn of coil to an (Ns1+B1?1)th turn of coil in the secondary winding are disposed at the first secondary winding layer, and a charge balance winding including a first charge balance winding layer, where the first charge balance winding layer is disposed between the first primary winding layer and the first secondary winding layer, and is adjacent to the first primary winding layer and the first secondary winding layer. N1 turns of coils are disposed at the first charge balance winding layer, where N1 is greater than or equal to Nb1.

Abstract: A dual-rotor wing motor includes a sleeve separating an inner shaft from an outer shaft. An external bearing is independently coupled to a shaft cover while an internal bearing is independently coupled to the inner shaft, and thus the external bearing and the internal bearing independently bear a friction force due to the rotation of the respective single shaft, the heat generated by the friction force can be reduced and the lubricant cannot be easily evaporated. Accordingly, the service life of the dual-rotor wing motor of the present invention can be prolonged.

Abstract: A wearable display device includes a wearing device, a fixed frame, a sliding member, a bracket and an optical imaging device. The fixed frame is fixedly connected to the wearing device. The sliding member is slidably coupled to the fixed frame. The bracket is pivotally connected to the sliding member and is interlocked with the sliding member. The optical imaging device is fixedly connected to the bracket for sliding and rotating relative to the fixed frame.

Abstract: A client terminal sends a signal to a wireless access device. The wireless access device receives the signal, determines channel state information corresponding to the client terminal according to identity information of the client terminal in the signal, and calculates data sent by the client terminal according to the channel state information and the signal. The client terminal sends a request signal for acquiring channel state information, wherein the request signal includes identity information of the client terminal. The wireless access device receives the request signal, obtains the channel state information corresponding to the client terminal according to the identity information of the client terminal in the request signal, and sends the obtained channel state information to the client terminal. The client terminal receives the channel state information and the signal and calculates the data sent to the client terminal according to the channel state information and the signal.

Abstract: A transmission mechanism includes first and second transmission, first and second shafts, a clutch, and a one-way bearing. In the first gear, power is output through the first driving transmission and the one-way bearing; and in the second gear, the power is output through the clutch, the second driving transmission and the one-way bearing.

Abstract: A steering device includes a steering power unit, a transmission unit, an upper control arm, a steering element, an eccentric bolt and a steering knuckle. The steering power unit has at least one torque-output end. The transmission unit is connected with the torque-output end. The steering element is connected with the transmission unit. The eccentric bolt, installed at the upper control arm, is connected with the steering power unit. The steering knuckle, mounted to a wheel disc, is connected with the steering element and the upper control arm, and used for controlling the wheel disc. The steering power unit drives the steering element to push or pull the steering knuckle for controlling a turning angle, and simultaneously drives the eccentric bolt to have the upper control arm to push or pull the steering knuckle for varying a camber angle of the wheel disc. In addition, a steering method is provided.