Abstract: The current invention offers a process for the production of N-Boc-2-amino-3,3-dimethylbutyric acid by a reaction of tert-Leucine with di-tert-butyl-dicarbonate, the process comprising (i) contacting the tert-Leucine with di-tert-butyl-dicarbonate in an aqueous medium, optionally comprising a first organic solvent, in the presence of an inorganic base, (ii) optionally removing the first organic solvent, (iii) optionally extracting the resulting N-Boc-2-amino-3,3-dimethylbutyric acid into a second organic solvent, (iv) isolating the product by precipitation from the reaction mixture at acidic pH, and (v) optionally reuse the first and/or second organic solvents recovered from step (ii) and/or step (iv) for the next production cycle. The process is sufficiently short, uses preferably environmental friendly solvents, avoids waste and leads to good yields.

Abstract: A disambiguation dialog may be generated by determining candidate responses based on an intent of a user's message. A utility value and a relevance probability may be determined for each of the candidate responses. An intermediate ranking may be computed for each of the candidate responses based on the utility value and the relevance probability. Candidate dialogs may be formed with the top candidate response, the top two candidate responses, and so on. Additional candidate dialogs may be generated by varying a presentation format of the candidate responses. Discoverability probabilities may be associated with each of the candidate responses within a candidate dialog. A joint metric for each candidate dialog may be computed as a function of the utility value, relevance probability and discoverability probability associated with each of the candidate responses included in the candidate dialog. The highest ranked candidate dialog may be selected as the disambiguation dialog.

Abstract: The present invention provides a heat transfer-based width adjustment method for a continuous casting mold. A boundary condition of a horizontal acceleration velocity ? used in heat transfer-based width adjustment of a continuous casting mold is set to a minimum value subject to constraints of a maximum air gap and shell strength. The present invention can constrain a maximum air gap between a copper plate of a narrow mold wall and a casting billet in a heat transfer-based width adjustment process for a continuous casting mold, thereby ensuring sufficient contact between the copper plate of the narrow mold wall and the casting billet, so as to prevent cracks and other defects of the casting billet due to excessive thermal resistance of the air gap, insufficient corner cooling of the casting billet, delayed solidification and concentrated thermal deformation stress.

Abstract: The present invention discloses a method of manufacturing 4-chloro-7H-pyrrolo[2,3-d]pyrimidine comprising the steps: a) Preparing ethyl 2-cyano-4,4-dimethoxybutanoate by coupling ethyl 2-cyanoacetate and 2-bromo-1,1-dimethoxyethane; b) Preparing 6-amino-5-(2,2-dimethoxyethyl)pyrimidin-4-ol by adding formamidine to ethyl 2-cyano-4,4-dimethoxybutanoate; c) Converting 6-amino-5-(2,2-dimethoxyethyl)pyrimidin-4-ol to 7H-pyrrolo[2,3-d]pyrimidin-4-ol; and d) Converting the 7H-pyrrolo[2,3-d]pyrimidin-4-ol to 4-chloro-7H-pyrrolo[2,3-d]pyrimidine. The method offers increased yield, less by-products and a decrease in waste compared to methods known as being state of the art.

Abstract: Provide is a display device. The display device includes a watchcase, a first display screen and a flexible display component. The first display screen is arranged on a front side of the watchcase. The first display screen includes a first display surface. The flexible display component is arranged on a back face of the watchcase. The flexible display component may be bent along a first direction to be reused as a watchband. Moreover, in the condition that the flexible display component is reused as the watchband, a surface of the flexible display component facing away from the watchcase is a second display surface.

Abstract: The present invention provides a method for handover between access points, and terminal equipment. The method includes: when performing information transmission with a first access point AP on a first frequency band, determining whether the terminal equipment needs to establish a connection with a second AP which is a second frequency band; determining, by the terminal equipment, whether the first AP and the second AP are corresponding to a same dual-band radio access device; sending, by the terminal equipment, a connection request to the second AP when maintaining a protocol layer connection with the first AP; and establishing, by the terminal equipment, the connection with the second AP when the second AP send feedback. In the method, duration required by a process of handover between access points can be reduced, and a user is made not perceive the handover process, thereby improving user experience.

Abstract: Systems and methods for facilitating an automated conversation between a user and a virtual agent, is disclosed. The system receives an input message from the user and analyzing an intent of the input message. The system generates a plurality of bids for response to the input message based on the intent of the input message and assign an intent confidence score to each bid of the plurality of bids based on a confidence level of each bid of the plurality of bids. The system determines a winning bid from the plurality of bids based on the intent confidence score associated with each bid of the plurality of bids, and generates a response based on the winning bid.

Abstract: A computer-implemented method for training a chatbot is provided. The method includes receiving a training input through a platform associated with the chatbot. The training input indicates user intent for interacting with the chatbot. The method includes calculating a confidence score associated with a prediction of the user intent identified by the chatbot. The method further includes providing a training score to the user providing the training input based on the confidence score.

Abstract: Provided are a display panel, a display device, and a method for configuring a display panel. The display panel includes a display function layer, a support layer and a storage structure, where the support layer is disposed on one side of the display function layer and is in contact with the display function layer; the support layer includes a first cavity and is connected to the storage structure; and the storage structure is provided with a storage unit and is capable of moving a phase changing material from the storage unit into the first cavity or moving the phase changing material from the first cavity into the storage unit. A heater and a cooler are applied to switch the phase changing material between the solid and the liquid phases.

Abstract: Embodiments provide methods and apparatus for improving responses of automated conversational agents. The method includes generating a vector representation of a conversational input provided by a user. The vector representation is used to determine an intent of the conversational input. Further, annotators generate bait sentences that cover multiple aspects of the intent. Then, sentences in a data pool are accessed. The bait sentences and the data pool sentences are converted into a first and a second set of vector representations, respectively. The first and the second set of vector representations are compared to retrieve a list of similar sentences. The list of similar sentences includes one or more sentences of the data pool that are semantically similar to the bait sentences. The list of similar sentences is analyzed for updating the intent data and thereby improve the responses.

Abstract: A backlight device is disclosed. The backlight device includes a reflection sheet; a frame in contact with the reflection sheet; and a light guiding plate surrounded by the frame; wherein the frame comprises: a first surface in contact with the reflection sheet, a second surface spaced apart from the reflection sheet, at least one groove configured to secure a light emitting element, and a heat dissipation channel in at least one of the first surface and the second surface of the frame, wherein the heat dissipation channel is located at periphery of the groove.

Abstract: The current invention offers a process for the production of N-Boc-2-amino-3,3-dimethylbutyric acid by a reaction of tert-Leucine with di-tert-butyl-dicarbonate, the process comprising (i) contacting the tert-Leucine with di-tert-butyl-dicarbonate in an aqueous medium, optionally comprising a first organic solvent, in the presence of an inorganic base, (ii) optionally removing the first organic solvent, (iii) optionally extracting the resulting N-Boc-2-amino-3,3-dimethylbutyric acid into a second organic solvent, (iv) isolating the product by precipitation from the reaction mixture at acidic pH, and (v) optionally reuse the first and/or second organic solvents recovered from step (ii) and/or step (iv) for the next production cycle. The process is sufficiently short, uses preferably environmental friendly solvents, avoids waste and leads to good yields.

Abstract: A light-emitting diode, comprising a substrate that has a first surface and an opposing second surface. A reflection layer is disposed on the first surface of the substrate and a light-emitting diode structure is arranged on the second surface of the substrate. The light-emitting diode structure includes a first semiconducting layer, an active layer and a second semiconducting layer disposed consecutively on the second surface. A plurality of protruding asymmetric micro-structured elements define at least a part of the second surface of the substrate such that at least a portion of a surface of each micro-structured element is disposed at an obtuse angle to the first surface of the substrate when measured from within the respective micro-structured element. The first semiconducting layer and the second semiconducting layer respectively have a first electrode and a second electrode.

Abstract: A computer-implemented method for training a chatbot is provided. The method includes receiving a training input through a platform associated with the chatbot. The training input indicates user intent for interacting with the chatbot. The method includes calculating a confidence score associated with a prediction of the user intent identified by the chatbot. The method further includes providing a training score to the user providing the training input based on the confidence score.

Abstract: The present invention discloses a method of manufacturing 4-chloro-7H-pyrrolo[2,3-d]pyrimidine comprising the steps: a) Preparing ethyl 2-cyano-4,4-dimethoxybutanoate by coupling ethyl 2-cyanoacetate and 2-bromo-1,1-dimethoxyethane; b) Preparing 6-amino-5-(2,2-dimethoxyethyl)pyrimidin-4-ol by adding formamidine to ethyl 2-cyano-4,4-dimethoxybutanoate; c) Converting 6-amino-5-(2,2-dimethoxyethyl)pyrimidin-4-ol to 7H-pyrrolo[2,3-d]pyrimidin-4-ol; and d) Converting the 7H-pyrrolo[2,3-d]pyrimidin-4-ol to 4-chloro-7H-pyrrolo[2,3-d]pyrimidine. The method offers increased yield, less by-products and a decrease in waste compared to methods known as being state of the art.

Abstract: A backlight module and a display device are provided. The backlight module comprises: a light guide plate having a light incident surface; and a light source disposed on at least one side of the light guide plate. A light exit surface of the light source faces the light incident surface of the light guide plate. At least one through hole is disposed in the light guide plate, and a light adjustment component is disposed in the at least one through hole.

Abstract: A computer-implemented method for conducting a conversation with a virtual agent system is provided. The method includes receiving a conversation input from a user during a conversation of the user with a virtual agent system. The method includes probabilistically matching the conversation input with a stack of earlier conversations between the user and the virtual agent system. The probabilistic matching determines a context of the conversation input from one or more contexts associated with the stack of earlier conversations. The method includes interpreting the conversation input to identify a user intent from among a plurality of user intents. The method further includes determining an action to be performed by the virtual agent system based on the context determined by the probabilistic matching and the user intent.

Abstract: A power amplifier bias circuit with embedded envelope detection includes a bias circuit stage coupled to an envelope detector circuit to increases a bias provided to a power amplifier as a function of an incoming envelope signal. The envelope detector circuit includes a first source/emitter follower transistor, a current source, and a filter to generate a baseband envelope signal. The current source is coupled to an output node of the first source/emitter follower transistor and the filter is also coupled to the output node of the first source/emitter follower transistor. The bias circuit stage includes one or more replica transistors that replicate transistors of the power amplifier or power amplifier core stage, an envelope detector replica transistor and a replica of the current source of the envelope detector circuit.

Abstract: Method, system and computer program product for facilitating task automation at an IT service desk associated with an enterprise are disclosed. A user interface (UI) is provisioned to a user to enable the user to provide a request in a natural language form to the IT service desk. A virtual agent engages in a natural language interaction with the user on the UI and interprets the request from the natural language interaction. The request is mapped to a set of pre-determined actions based on the interpretation of the request and an execution of the set of pre-determined actions is effected to facilitate resolution of the request provided by the user.

Abstract: Methods and systems are disclosed that relate to ranking functions for multiple different domains. By way of example but not limitation, ranking functions for multiple different domains may be trained based on inter-domain loss, and such ranking functions may be used to rank search results from multiple different domains so that they may be blended without normalizing relevancy scores.