Abstract: Channel monitoring means monitors channel quality information of a plurality of optical signals of a plurality of channels transmitted from a transmitting apparatus and received by a receiving apparatus, and outputting first information including the monitored channel quality information, the transmitting apparatus processing a plurality of data signals to transform them into a plurality of mixed data signals using a transfer matrix and converting the plurality of mixed signals into the plurality of optical signals. Estimation means estimates transmission a first objective between the transmitting apparatus and the receiving apparatus based on the first information and second information received from the transmitting apparatus, and outputting an estimation result.

Abstract: It is difficult to carry out automatic bias control to an optical modulator without a dither signal with a simple configuration, therefore, an optical transmitter comprising the controller configured to adjust an adjusted bias voltage based on the coupled optical signal, the adjusted bias voltage being one of a first bias voltage applied to the first optical modulator, a second bias voltage applied to the second optical modulator and a third bias voltage applied to the third optical modulator and maintain a value of bias voltages other than the adjusted voltage in the first bias voltage, the second bias voltage and the third voltage.

Abstract: A method for providing recommendations to a user includes assigning one or more item tags from a known set of tags to one or more items of a plurality of items; assigning one or more user tags from the known set of tags to a user; determining at least one taste cluster having one or more cluster tags from the known set of tags, wherein the taste cluster shares at least one shared tag with the one or more user tags and with the one or more item tags; affiliating at least one item of the plurality of items with the taste cluster based on the shared tag; affiliating the user with the taste cluster based on the shared tag; and presenting to the user at least one presented item of the plurality of items affiliated with the taste cluster.

Abstract: A state-of-polarization monitoring method according to the present disclosure computes a state-of-polarization change vector representing a change in the state of polarization of an optical reception signal for each of different periods, and determines a characteristic of the change in the state of polarization of the optical reception signal based on a direction of each of the state-of-polarization change vectors, a length of each of the state-of-polarization change vectors, or both of them.

Abstract: An object of the present disclosure is to provide a data processing device, a data processing method and a non-transitory computer readable medium capable of suppressing impairments of signal transmission. A data processing device includes at least one memory configured to store instructions and at least one processor configured to execute the instructions to: obtain input information bits; and generate a first output information bits and a second output information bits based on the input information bits, wherein the first output information bits correspond to constellation points of a constellation diagram on a first axis and the second output information bits correspond to constellation points of the constellation diagram on a second axis, and a probability of the constellation points on at least one of the first or the second axis follows a distribution, the distribution having a plurality of local maxima.

Abstract: A state-of-polarization monitoring apparatus performs: determining a first state-of-polarization (SOP) vector that represents an SOP of an optical reception signal in a the first partial period for each first partial period and a second SOP vector that represents an SOP of the optical reception signal in the second partial period for each second partial period; computing a rotation angle of the first SOP vector for each pair of first SOP vectors and a rotation angle of the second SOP vector for each pair of second SOP vectors; determining whether a length of the first partial period or a length of an interval between the first partial periods is appropriate based on the rotation angles of the first and second SOP vectors.

Abstract: This disclosure relates to a content cluster system that provides a framework for leveraging large language models (LLMs) to tag content items (e.g., interactive multimedia content items, such as gaming content items) with attribute tags and, based on attribute tags for related content items, generating cluster descriptions of a cluster of content items. Features of the content cluster system involve tagging content items, determining multi-dimensional embeddings for the content items, and clustering the content items based on proximity of values contained within the multi-dimensional embeddings. The content cluster system may further utilize the LLM to generate one or more cluster descriptions based on the associated tags to create a more creative and dynamic representation of related groupings of titles (e.g., gaming titles). By utilizing LLMs and machine learning resources, the content cluster system provides a scalable approach to conventional approaches in determining and presenting groupings of titles.

Abstract: A method for providing recommendations to a user includes assigning one or more item tags from a known set of tags to one or more items of a plurality of items; assigning one or more user tags from the known set of tags to a user; determining at least one taste cluster having one or more cluster tags from the known set of tags, wherein the taste cluster shares at least one shared tag with the one or more user tags and with the one or more item tags; affiliating at least one item of the plurality of items with the taste cluster based on the shared tag; affiliating the user with the taste cluster based on the shared tag; and presenting to the user at least one presented item of the plurality of items affiliated with the taste cluster.

Abstract: A penalty is introduced to the channel with less noise when the difference in the transmitted signal quality among channels is reduced; therefore, an equalization apparatus according to an exemplary aspect of the disclosure includes a processing means for performing a process associated with a signal using a transfer function with a coefficient, the signal propagating through each of a plurality of channels; and a coefficient generating means for generating the coefficient based on channel quality information on each of the plurality of channels.

Abstract: Channel monitoring means monitors channel quality information of a plurality of optical signals of a plurality of channels transmitted from a transmitting apparatus and received by a receiving apparatus, and outputting first information including the monitored channel quality information, the transmitting apparatus processing a plurality of data signals to transform them into a plurality of mixed data signals using a transfer matrix and converting the plurality of mixed signals into the plurality of optical signals. Estimation means estimates transmission a first objective between the transmitting apparatus and the receiving apparatus based on the first information and second information received from the transmitting apparatus, and outputting an estimation result.

Abstract: To carry out automatic bias control to an optical modulator without a dither signal with reduced cost, an optical transmitter comprises a light source configured to output a light, an optical first modulator configured to modulate the light and output a first modulated optical signal, a DC component detector configured to detect a DC component of the first modulated optical signal and a controller configured to apply a first specific bias voltage identified based on the DC component to the optical first modulator.

Abstract: A first earbud configured to communicate with a user media device and a second earbud. The first earbud includes a battery, a battery monitor configured to determine a power level of the battery, a mode controller. The mode controller is configured to receive a first power level value from the battery monitor and a second power level value from the second earbud and make a determination that the first earbud is operating in a primary mode in which the first earbud receives audio data from the user media device and transmits the received audio data to the second earbud. The mode controller is further configured, in response to the determination that the first earbud is operating in the primary mode, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level and the second power level.

Abstract: A penalty is introduced to the channel with less noise when the difference in the transmitted signal quality among channels is reduced; therefore, an equalization apparatus according to an exemplary aspect of the disclosure includes a processing means for performing a process associated with a signal using a transfer function with a coefficient, the signal propagating through each of a plurality of channels; and a coefficient generating means for generating the coefficient based on channel quality information on each of the plurality of channels.

Abstract: An object is to actively control a phase of electromagnetic wave with high efficiency. A phase control device includes a phase control lens and a control circuit. The phase control lens includes metamaterial boards arranged in a first direction and separated from each other. Each metamaterial board shifts a phase of electromagnetic wave passing therethrough. The control circuit controls admittance distribution in a plane perpendicular to the first direction of each metamaterial board.

Abstract: It is difficult to carry out automatic bias control to an optical modulator without a dither signal with a simple configuration, therefore, an optical transmitter comprising the controller configured to adjust an adjusted bias voltage based on the coupled optical signal, the adjusted bias voltage being one of a first bias voltage applied to the first optical modulator, a second bias voltage applied to the second optical modulator and a third bias voltage applied to the third optical modulator and maintain a value of bias voltages other than the adjusted voltage in the first bias voltage, the second bias voltage and the third voltage.

Abstract: An object of the present disclosure is to provide a data processing device, a data processing method and a non-transitory computer readable medium capable of suppressing impairments of signal transmission. A data processing device includes at least one memory configured to store instructions and at least one processor configured to execute the instructions to: obtain input information bits; and generate a first output information bits and a second output information bits based on the input information bits, wherein the first output information bits correspond to constellation points of a constellation diagram on a first axis and the second output information bits correspond to constellation points of the constellation diagram on a second axis, and a probability of the constellation points on at least one of the first or the second axis follows a distribution, the distribution having a plurality of local maxima.

Abstract: A phase control device (100) includes a two-dimensional array of three-dimensional units (10) and is configured to control a phase of an electromagnetic wave passing through the three-dimensional units (10). Each three-dimensional unit (10) includes a substrate (12) and an active control layer (11). The active control layer (11) includes metal patches (111) and (112), and a modulator (113) disposed between the two metal patches and connected to each of the two metal patches. The substrate (12) includes at least one bias line (114 or 116) connected to one of the two metal patches and extending in a direction perpendicular to a direction of an electric field of the electromagnetic wave.

Abstract: A system, method and program product for implementing a machine learning platform that processes a data map having feature and operational information. A system is disclosed that includes an interpretable machine learning model that generates a function in response to an inputted data map, wherein the data map includes feature data and operational data over a region of interest, and wherein the function relates a set of predictive variables to one or more response variables; an integration/interpolation system that generates the data map from a set of disparate data sources; and an analysis system that evaluates the function to predict outcomes at unique points in the region of interest.

Abstract: A first earbud configured to communicate with a user media device and a second earbud. The first earbud includes a battery, a battery monitor configured to determine a power level of the battery, a mode controller. The mode controller is configured to receive a first power level value from the battery monitor and a second power level value from the second earbud and make a determination that the first earbud is operating in a primary mode in which the first earbud receives audio data from the user media device and transmits the received audio data to the second earbud. The mode controller is further configured, in response to the determination that the first earbud is operating in the primary mode, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level and the second power level.

Abstract: To carry out automatic bias control to an optical modulator without a dither signal with reduced cost, an optical transmitter comprises a light source configured to output a light, an optical first modulator configured to modulate the light and output a first modulated optical signal, a DC component detector configured to detect a DC component of the first modulated optical signal and a controller configured to apply a first specific bias voltage identified based on the DC component to the optical first modulator.