Abstract: A method includes receiving a training dataset that includes one or more spoken training utterances for training an automatic speech recognition (ASR) model. Each spoken training utterance in the training dataset paired with a corresponding transcription and a corresponding target sequence of auxiliary tokens. For each spoken training utterance, the method includes generating a speech recognition hypothesis for a corresponding spoken training utterance, determining a speech recognition loss based on the speech recognition hypothesis and the corresponding transcription, generating a predicted auxiliary token for the corresponding spoken training utterance, and determining an auxiliary task loss based on the predicted auxiliary token and the corresponding target sequence of auxiliary tokens. The method also includes the ASR model jointly on the speech recognition loss and the auxiliary task loss determined for each spoken training utterance.

Abstract: An electric ratchet wrench as one example of the ratchet wrench includes an electric motor, a holder that rotatably holds a socket via a one-way clutch mechanism, and a spindle configured to convert a driving force from the motor into a reciprocating rotation motion of the holder. A space is provided between the socket and the holder. The space includes large interval portions and small interval portions. The small interval portions are adjacent to the large interval portions in a rotation direction (lock direction) of the socket and have distances smaller than distances of the large interval portions. Additionally, the one-way clutch mechanism includes columnar locking pins disposed between the spaces and have a diameter with a size equal to or less than the distances of the large interval portions and exceeding the distances of the small interval portions.

Abstract: An electric ratchet wrench as one example of the ratchet wrench includes an electric motor, a holder that rotatably holds a socket via a one-way clutch mechanism, and a spindle configured to convert a driving force from the motor into a reciprocating rotation motion of the holder. A space is provided between the socket and the holder. The space includes large interval portions and small interval portions. The small interval portions are adjacent to the large interval portions in a rotation direction (lock direction) of the socket and have distances smaller than distances of the large interval portions. Additionally, the one-way clutch mechanism includes columnar locking pins disposed between the spaces and have a diameter with a size equal to or less than the distances of the large interval portions and exceeding the distances of the small interval portions.

Abstract: A computer that includes a processor and a memory, the memory including instructions executable by the processor to operate a system based on predictions output from the machine learning system including predicted states, actions, rewards, and costs, wherein the machine learning system includes a first transformer and a second transformer and is trained based on bisimulation offline reinforcement learning, wherein the first transformer and the second transformer are based on a Markov decision process that includes the states, the actions, the rewards, and the costs. The bisimulation offline reinforcement learning can include inputting a first sequences of training states, actions, rewards, and costs to the first transformer and a second sequence of the training states, actions, rewards, and costs to the second transformer to determine bisimulation learning objectives based on latent variables output from the first transformer and the second transformer.

Abstract: An impact tool includes: a grip extending in a front-rear direction; a motor housing located forward of the grip; a motor located inside the motor housing; a spindle located forward of the motor, extending in a direction intersecting the front-rear direction, and rotated by the motor; a hammer rotated by the spindle; an anvil to be impacted in a rotation direction by the hammer; a tool accessory holder located at a lower end of the anvil; a hammer case that accommodates the spindle and the hammer; and a light emitter held by the hammer case.

Abstract: An electric power tool includes: a grip extending in a front-rear direction; a motor housing disposed forward of the grip; a motor disposed inside the motor housing and including a stator and a rotor, the rotor being rotatable with respect to the stator; a bevel gear configured to rotate integrally with the rotor and including a shaft extending in the front-rear direction; a spindle directly or indirectly rotated via the bevel gear and extending in a direction intersecting the front-rear direction; a tool accessory holder rotated by the spindle; a case to accommodate the bevel gear and the spindle; and a bearing held by the case and configured to hold the bevel gear to be rotatable.

Abstract: An angle fastening tool includes: a grip extending in a front-rear direction; a motor housing located forward of the grip; a motor located inside the motor housing; a spindle located forward of the motor, extending in a direction intersecting the front-rear direction, and rotated by the motor; a case accommodating the spindle; a tool accessory holder protruding downward from a lower surface of the case and rotated by the spindle; and a trigger lever provided so as to protrude downward from a lower surface of the grip. A lower end of the trigger lever is located at a position closer to a lower surface of the motor housing than to a lower end of the tool accessory holder, in an up-down direction.

Abstract: An automated speech recognition (ASR) model includes a first encoder, a first encoder, a second encoder, and a second decoder. The first encoder receives, as input, a sequence of acoustic frames, and generates, at each of a plurality of output steps, a first higher order feature representation for a corresponding acoustic frame in the sequence of acoustic frames. The first decoder receives, as input, the first higher order feature representation generated by the first encoder, and generates a first probability distribution over possible speech recognition hypotheses. The second encoder receives, as input, the first higher order feature representation generated by the first encoder, and generates a second higher order feature representation for a corresponding first higher order feature frame. The second decoder receives, as input, the second higher order feature representation generated by the second encoder, and generates a second probability distribution over possible speech recognition hypotheses.

Abstract: An electric screw tightening machine includes: a motor including a stator and a rotor that is rotatable with respect to the stator and has a rotor axis extending in a front-rear direction; a motor housing that accommodates the motor; a speed reduction mechanism that decelerates rotation of the motor; a socket to which rotation of the motor is always transmitted via the speed reduction mechanism during rotation of the motor and that has a socket axis intersecting the rotor axis; and a one-way clutch mechanism that is disposed at least partially around the socket, and is configured to allow the socket to rotate due to the rotation of the motor only in one direction during the rotation of the motor and transmit rotation input to the motor housing to the socket only in one direction during stop of the motor.

Abstract: A power tool includes: a motor having a rotor, which rotates about a motor rotational axis extending in a front-rear direction; an output part, which is disposed more forward than the motor and is rotated in response to rotation of the rotor; a housing including: a motor-housing part, which houses the motor; a grip part, which extends downward from the motor-housing part; a battery-holding part, which is connected to a lower-end portion of the grip part; a control circuit board, which is housed in the housing; and an operation-and-display part, which is disposed at a rear portion of the housing and is electrically connected to the control circuit board.

Abstract: Disclosed is a data distribution method, a data distribution device, network equipment and a storage medium. The data distribution method includes: obtaining a network element group, and allocating a transmission resource of a management network element to a network element to be distributed data in each network element group; the network element group includes a plurality of network elements to be distributed data with consistent network element attribute information, and the management network element is the network where the network element to be distributed data is located and is a network element provided with a network management function; taking a network element to be distributed data that successfully performs data distribution as a seed network element, and obtaining a current load condition of the seed network element.

Abstract: A power tool includes: a motor having a rotor, which rotates about a motor rotational axis extending in a front-rear direction; an output part, which is disposed more forward than the motor and is rotated in response to rotation of the rotor; a housing including: a motor-housing part, which houses the motor; a grip part, which extends downward from the motor-housing part; a battery-holding part, which is connected to a lower-end portion of the grip part; a control circuit board, which is housed in the housing; and an operation-and-display part, which is disposed at a rear portion of the housing and is electrically connected to the control circuit board.

Abstract: An electric ratchet wrench as one example of the ratchet wrench includes an electric motor, a holder that rotatably holds a socket via a one-way clutch mechanism, and a spindle configured to convert a driving force from the motor into a reciprocating rotation motion of the holder. A space is provided between the socket and the holder. The space includes large interval portions and small interval portions. The small interval portions are adjacent to the large interval portions in a rotation direction (lock direction) of the socket and have distances smaller than distances of the large interval portions. Additionally, the one-way clutch mechanism includes columnar locking pins disposed between the spaces and have a diameter with a size equal to or less than the distances of the large interval portions and exceeding the distances of the small interval portions.

Abstract: An electric ratchet wrench as one example of the ratchet wrench includes an electric motor, a holder that rotatably holds a socket via a one-way clutch mechanism, and a spindle configured to convert a driving force from the motor into a reciprocating rotation motion of the holder. A space is provided between the socket and the holder. The space includes large interval portions and small interval portions. The small interval portions are adjacent to the large interval portions in a rotation direction (lock direction) of the socket and have distances smaller than distances of the large interval portions. Additionally, the one-way clutch mechanism includes columnar locking pins disposed between the spaces and have a diameter with a size equal to or less than the distances of the large interval portions and exceeding the distances of the small interval portions.

Abstract: An impact tool has a mechanical structure to strike an anvil with a striking force appropriate for a task. An impact tool includes a motor, a hammer rotatable by the motor, an anvil that receives a tip tool and is strikable by the hammer in a rotation direction, an elastic member having a front end supporting the hammer and being extendable and contractable in a front-rear direction to apply an elastic force to the hammer toward the anvil, and a positioner supporting a rear end of the elastic member. The positioner changes a support position of the positioner supporting the rear end of the elastic member in the front-rear direction.

Abstract: A method includes receiving a training dataset that includes one or more spoken training utterances for training an automatic speech recognition (ASR) model. Each spoken training utterance in the training dataset paired with a corresponding transcription and a corresponding target sequence of auxiliary tokens. For each spoken training utterance, the method includes generating a speech recognition hypothesis for a corresponding spoken training utterance, determining a speech recognition loss based on the speech recognition hypothesis and the corresponding transcription, generating a predicted auxiliary token for the corresponding spoken training utterance, and determining an auxiliary task loss based on the predicted auxiliary token and the corresponding target sequence of auxiliary tokens. The method also includes the ASR model jointly on the speech recognition loss and the auxiliary task loss determined for each spoken training utterance.

Abstract: Systems and methods for generating new images for training a machine-learning model are disclosed. Image data is produced regarding an image captured by an image sensor. The image data is altered such that the style of the image (e.g., color, shading, orientation, etc.) is altered. The altered image data is encoded into a first latent space. An image from a database is selected based on its similarity to the altered image and a decoding of the first latent space. Style encodings of the first latent space are extracted to classify a style of the altered image data in a second latent space. New images are then generated utilizing a reconstructor model that combines the two latent spaces. These new images can be used to train an image-recognition model.

Abstract: A power tool is less likely to have lower workability. A power tool includes a motor including a rotor rotatable about a rotation axis extending in a front-rear direction and a stator, an output unit located frontward from the motor and rotatable in response to a rotational force from the rotor, a motor compartment accommodating the motor, a grip extending downward from the motor compartment, a rear rotor bearing supporting a rear portion of the rotor, and a rear cover covering an opening at a rear end of the motor compartment and holding the rear rotor bearing. The motor compartment includes a guide that guides the rear cover in a first circumferential direction and frontward, a front-rear restrictor that restricts front-rear movement of the rear cover, and a circumferential restrictor that restricts circumferential movement of the rear cover.