Abstract: According to an embodiment, a method for generating textual features corresponding to text documents from a raw dataset is disclosed. The method includes preprocessing the text documents and determining topic probability scores (TPS) and confidence scores (CS) using unsupervised and supervised machine learning models, respectively. The combination of TPS and CS is used to generate a compound distribution score (CDS), which forms a comprehensive representation of the output of the machine learning models. The determined TPS, CS, and CDS are then used to generate a set of textual features, which serve as independent variables for a forecasting model.

Abstract: According to an embodiment, a method for determining feature importance in an ensemble model including a plurality of Machine Learning (ML) models is disclosed. The method includes receiving a dataset comprising input features and a forecast result. The method also includes generating a ranking-based feature list based on the input features. Further, the method includes generating a feature importance output based on the ranking-based features lists. Furthermore, the method includes determining a weightage value corresponding to each of the plurality of ML models based on an accuracy value associated with the corresponding machine learning model. The method also includes determining a weightage-based feature importance value corresponding to each input feature corresponding to the feature importance output based on the determined weightage value corresponding to each ML model responsible for the corresponding input feature in the feature importance output.

Abstract: Saltiness enhancers containing cyclotene as an active ingredient can effectively enhance the saltiness of a sodium chloride-containing food.

Abstract: For each channel, a light-emitting unit provided between a wire fed with a driving voltage and a connection terminal can be supplied with a driving current via the connection terminal. For each channel, a switch circuit is provided between the connection terminal and a voltage generation circuit. Based on the driving voltage, a first and a second voltage lower than the driving voltage are generated at a first and a second node. With each connection terminal cut off from the first and second nodes, the second voltage is lower than the first voltage. In a period in which each channel is not supplied with the driving current, the switch circuit operates to connect, of two adjacent connection terminals, one to the second node and the other to the first node. Based on the voltage at the one connection terminal, a resistance value abnormality between the two connection terminals is detected.

Abstract: A sound output device includes a speaker unit that includes a diaphragm and outputs sound in a full-range frequency band and a sound control body that includes a sound guiding portion through which sound output from the speaker unit passes, in which the sound guiding portion has an opening on the speaker unit side, the opening being provided as a sound input part, and has an opposite opening on a side opposite to the sound input part, the opposite opening being provided as a sound output part, the sound output part is formed in a shape having a width direction and a length direction, and the sound output part has a width smaller than that of the diaphragm.

Abstract: A vehicle control system (11) has a human-machine interface (31). The human-machine interface (31) performs display control of entertainment content (CT) on the basis of a monitoring result of a passenger (PA).

Abstract: The operation sequence identification device identifies an operation sequence including a series of individual operations. The operation sequence identification device includes an communication circuit that acquires first sensing information indicating the position of a moving object in an operation area in chronological order and plural pieces of second sensing information indicating surrounding environment states at different positions in the operation area in chronological order, and a control circuit that specifies the order of the series of individual operations based on the first sensing information and that identifies the operation content of each of the series of individual operations based on the second sensing information.

Abstract: For example, the level of direct sound leaking is reduced. A sound reproduction apparatus includes: a speaker unit; and a hollow sound conduit having one end side closed and another end side serving as an open end fitted with the speaker unit, in which the sound conduit has a plurality of holes, and the holes each have a shape inclined in a beam generation direction of sound radiated through the plurality of holes.

Abstract: A screen according to an embodiment of the present technology is a screen that displays an image in accordance with emission of image light including light in a predetermined polarized state as a major component and includes a corrugated surface and an optical element unit. The corrugated surface includes a plurality of reflection surfaces, the plurality of reflection surfaces having light transmissivity and diffusing and reflecting the emitted image light. The optical element unit is configured in accordance with a polarized state of the image light on a second side opposite to a first side of the corrugated surface on which the image light is emitted, restricts transmission of the image light to the second side, and transmits at least part of light entering from the second side.

Abstract: The operation sequence identification device identifies an operation sequence including a series of individual operations. The operation sequence identification device includes an communication circuit that acquires first sensing information indicating the position of a moving object in an operation area in chronological order and plural pieces of second sensing information indicating surrounding environment states at different positions in the operation area in chronological order, and a control circuit that specifies the order of the series of individual operations based on the first sensing information and that identifies the operation content of each of the series of individual operations based on the second sensing information.

Abstract: A refrigeration cycle device includes a heat pump cycle, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The low-temperature heat medium circuit includes a plurality of heat absorption devices configured to have a heat absorption amount to be absorbed by the low-temperature heat medium flowing out of a low-temperature heat medium-refrigerant heat exchanger, and a heat absorption adjusting unit configured to change the heat absorption amount of the low-temperature heat medium in the respective heat absorption devices.

Abstract: To provide an R-T-B based permanent magnet having a high residual magnetic flux density Br at room temperature and a high coercivity HcJ at high temperature. In the R-T-B based permanent magnet, R is a rare earth element, T is an iron group element, and B is boron, and the R-T-B based permanent magnet includes a light rare earth element and a heavy rare earth element as R. The R-T-B based permanent magnet further includes Al, Ga, and Zr. With respect to 100 mass % of the R-T-B based permanent magnet, a total content of R is 28.50 mass % to 30.25 mass % (not including 28.50 mass %), B content is 0.93 mass % to 0.98 mass %, Al content is 0.03 mass % to 0.19 mass %, Ga content is 0.03 mass % to 0.15 mass %, and Zr content is 0.30 mass % to 0.50 mass %.

Abstract: An information processing device includes: a quality evaluator that evaluates the quality of a plurality of instances of first data to generate a first evaluation result and evaluates the quality of a plurality of instances of second data to generate a second evaluation result; a learner that performs machine learning, using the plurality of instances of first data, to generate a machine learning model for detecting an anomaly; a detector that compares the first evaluation result and the second evaluation result and detects a concept drift, based on a comparison result; and an anomaly estimator that applies the machine learning model to the plurality of instances of second data to estimate whether an anomaly is present in the plurality of instances of second data.

Abstract: According to an embodiment, a method for generating a forecast of a timeseries is disclosed. The method comprises receiving a set of features comprising data and timeseries to be used by each of a plurality of prediction models for generating the forecast. Further, the method comprises generating using the set of features, a plurality of forecast results based on an ensemble of the plurality of prediction models. Furthermore, the method comprises optimizing the plurality of forecast results associated with a respective forecast module. Additionally, the method comprises probabilistically combining the outputs of the plurality of optimization modules. Moreover, the method comprises outputting a final forecast based on the combination of the at least two forecast results.

Abstract: An optical system includes: a first optical system including a polarization conversion element aligning a polarization direction of light including color light beams with a predetermined polarization direction, and generating illumination light including the color light beams; a first polarization rotation element disposed at a first pupil position inside the first optical system, including first and second divided regions, in which the first and second divided regions have different polarization characteristics with respect to a first color light beam outputted from the polarization conversion element; a polarizer disposed between the polarization conversion element and the first polarization rotation element, and reducing light in a polarization direction other than the predetermined polarization direction included in light outputted from the polarization conversion element; and light valves each illuminated by at least the first color light beam included in the illumination light generated by the first opt

Abstract: Implementations generally relate to tracking of user behavioral data in various environments where a user performs various activities. In some implementations, a method includes tracking, using capture devices, user behavior of a user, wherein the capture devices capture the user behavior performed by the user in environments associated with the user. The method further includes identifying target behaviors from the user behavior. The method further includes computing behavior scores for each target behavior of the target behaviors based on predetermined scoring criteria. The method further includes converting the behavior scores into behavior credits based on predetermined credit criteria. The method further includes displaying a summary of the user behavior to the user, wherein the summary comprises information associated with the target behaviors, the behavior scores, and the behavior credits enabling the user to redeem the behavior credits.

Abstract: Provided is a permanent magnet including a rare-earth element R (such as Nd), a transition metal element T (such as Fe), B, Zr, and Cu. The permanent magnet contains a plurality of main phase grains including Nd, T, and B, and grain boundary multiple junctions, the one grain boundary multiple junction is a grain boundary surrounded by three or more of the main phase grains, one of the grain boundary multiple junctions contains a ZrB2 crystal and an R—Cu-rich phase including R and Cu, Fe is contained in the ZrB2 crystal, a total concentration of Nd and Pr in the one grain boundary multiple junction containing both the ZrB2 crystal and the R—Cu-rich phase is higher than a total concentration of Nd and Pr in the main phase grain, a concentration of Cu in the one grain boundary multiple junction containing both the ZrB2 crystal and the R—Cu-rich phase is higher than a concentration of Cu in the main phase grain, and a unit of the concentration of each of Nd, Pr, and Cu is atomic %.

Abstract: A projector according to the present disclosure includes: an illumination optical system; a separator; a first light valve; a second light valve; and a projection optical system. The illumination optical system generates illumination light. The separator separates the illumination light from the illumination optical system into first illumination light and second illumination light. The first light valve is illuminated with the first illumination light separated by the separator and generates first image light. The second light valve is illuminated with the second illumination light separated by the separator and generates second image light. The first image light generated by the first light valve and the second image light generated by the second light valve enter the projection optical system through the separator.

Abstract: Provided is a permanent magnet including a rare-earth element R, a transition metal element T, B, Zr, and Cu. The permanent magnet contains main phase grains including Nd, T, and B, and grain boundary multiple junctions, the grain boundary multiple junction is a grain boundary surrounded by three or more of the main phase grains, one of the grain boundary multiple junctions contains a ZrB2 crystal and an R—Cu-rich phase, a concentration of B in the grain boundary multiple junction containing both the ZrB2 crystal and the R—Cu-rich phase is from 5 to 20 atomic %, a concentration of Cu in the grain boundary multiple junction containing both the ZrB2 crystal and the R—Cu-rich phase is from 5 to 25 atomic %, and a surface layer part of the main phase grain includes at least one kind of heavy rare-earth element among Tb and Dy.

Abstract: An optical system of the present disclosure includes: a first optical system including a polarization conversion element aligning a polarization direction of light including color light beams with a predetermined polarization direction, and generating illumination light including the color light beams; a first polarization rotation element disposed at a first pupil position inside the first optical system, including first and second divided regions, in which the first and second divided regions have different polarization characteristics with respect to a first color light beam outputted from the polarization conversion element; a polarizer disposed between the polarization conversion element and the first polarization rotation element, and reducing light in a polarization direction other than the predetermined polarization direction included in light outputted from the polarization conversion element; and light valves each illuminated by at least the first color light beam included in the illumination light