Abstract: Methods and systems are disclosed for training users to produce inner speech. The system presents a prompt on a display device with one or more instructions for a user to produce inner speech and, in response to presenting the prompt, monitors EMG data to detect existence of inner speech. The system, in response to detecting existence of the inner speech, presents on the display device an indication that inner speech has been detected in the EMG data.

Abstract: Methods and systems are disclosed for training a machine learning (ML) model to detect inner speech. The system collects, by an electromyograph (EMG) communication device used by a user, a first set of EMG signals over a first time interval. The system generates a first plurality of features based on the first set of EMG signals and generates a first probability associated with presence of inner speech by processing the first plurality of features with a machine learning (ML) model. The system compares the first probability generated by the ML model to a specified threshold and detects presence of the inner speech of the user in response to determining that the first probability generated by the ML model transgresses the specified threshold.

Abstract: Methods and systems are disclosed for measuring and quantifying inner speech production. The methods and systems present an instruction to a user to produce inner speech and collect electromyograph (EMG) data corresponding to the inner speech. The methods and systems process the EMG data by a machine learning model to generate a prediction comprising a word or phrase corresponding to the inner speech and concurrently generate an evaluation of inner speech production and detection.

Abstract: Methods and systems are disclosed for iteratively training a user and a ML model to produce accurate inner speech outputs. The methods and systems access a ML model and perform a first training iteration in which EMG data corresponding to inner speech is processed by the machine learning model to decode the EMG data into a set of predicted phonemes, phoneme sounds, words or phrases. The methods and systems present the set of predicted phonemes, phoneme sounds, words or phrases to the user and form a first set of training data comprising the set of predicted phonemes, phoneme sounds, words or phrases, the EMG data, and the set of specified phonemes, phoneme sounds, words or phrases as ground truth information. The methods and systems update parameters of the ML model based on the first set of training data prior to starting a second training iteration.

Abstract: Methods and systems are disclosed for synthetically generating inner speech training data. The methods and systems access a collection of overt speech signals representing phonemes, phoneme sounds, words or phrases spoken at least partially using overt speech. The methods and systems transform the collection of overt speech signals into inner speech training data comprising electromyograph (EMG) data representing inner speech corresponding to the phonemes, phoneme sounds, words or phrases spoken at least partially using the overt speech. The methods and systems train a machine learning model to decode inner speech signals into a set of corresponding phonemes, phoneme sounds, words or phrases based on the inner speech training data.

Abstract: Systems and methods are provided for performing operations comprising: detecting, by one or more electromyograph (EMG) electrodes of an EMG communication device, subthreshold muscle activation signals of one or more muscles associated with speech production, the subthreshold muscle activation signals being generated in response to inner speech of a user; applying a machine learning technique to the subthreshold muscle activation signals to estimate one or more speech features corresponding to the subthreshold muscle activation signals, the machine learning technique being trained to establish a relationship between a plurality of training subthreshold muscle activation signals and ground truth speech features; generating visual or audible output based on the one or more speech features; and causing the visual or audible output to be processed by a messaging application to engage a feature of the messaging application.

Abstract: Systems and methods are provided for performing operations comprising: detecting, by a plurality of electromyograph (EMG) electrodes of an EMG communication device, subthreshold muscle activation signals of one or more muscles associated with speech production, the subthreshold muscle activation signals being generated in response to inner speech of a user; applying a transform to the subthreshold muscle activation signals detected by the plurality of EMG electrodes to represent the subthreshold muscle activation signals as a plurality of maximally independent components; accessing an interference template corresponding to an eye blink component; filtering the plurality of maximally independent components based on the interference template to provide filtered maximally independent components; and regenerating a filtered version of the subthreshold muscle activation signals based on the filtered maximally independent components.

Abstract: Systems and methods are provided for performing operations comprising: detecting, by a plurality of electromyograph (EMG) electrodes of an EMG communication device, subthreshold muscle activation signals of one or more muscles associated with speech production, the subthreshold muscle activation signals being generated in response to inner speech of a user; applying a transform to the subthreshold muscle activation signals detected by the plurality of EMG electrodes to represent the subthreshold muscle activation signals as a plurality of maximally independent components; accessing an interference template corresponding to an eye blink component; filtering the plurality of maximally independent components based on the interference template to provide filtered maximally independent components; and regenerating a filtered version of the subthreshold muscle activation signals based on the filtered maximally independent components.

Abstract: Systems and methods are provided for performing operations comprising: detecting, by one or more electromyograph (EMG) electrodes of an EMG communication device, subthreshold muscle activation signals of one or more muscles associated with speech production, the subthreshold muscle activation signals being generated in response to inner speech of a user; applying a machine learning technique to the subthreshold muscle activation signals to estimate one or more speech features corresponding to the subthreshold muscle activation signals, the machine learning technique being trained to establish a relationship between a plurality of training subthreshold muscle activation signals and ground truth speech features; generating visual or audible output based on the one or more speech features; and causing the visual or audible output to be processed by a messaging application to engage a feature of the messaging application.

Abstract: An image abstraction engine is provided to characterize scenes like typically found in an urban setting. Specifically buildings and manmade structures have certain characteristic properties that may be abstracted and compressed in a manner that takes advantage of those characteristic properties. This allows for a more compact and computationally efficient abstraction and recognition.

Abstract: Each node of a topological database that represents an information technology environment with multi-tenancy capability represents a configuration item within the environment and is characterized by a tenant authorization rule that indicates a list of tenants that are authorized to access the corresponding configuration. An unrestricted result to an unrestricted query is obtained, the unrestricted query being representable as a sub-graph isomorphism. The unrestricted result includes groups of nodes of the database that satisfy the isomorphism. A tenant query is applied to the unrestricted result to obtain an authorized result, the tenant query being representable by the same sub-graph isomorphism as the unrestricted query. The authorized result includes identification of any of the groups whose component nodes are each characterized by a TAR that authorizes access by the querying tenant. A notification is issued to the querying tenant on the basis of the obtained authorized result.

Abstract: An image abstraction engine is provided to characterize scenes like typically found in an urban setting. Specifically buildings and manmade structures have certain characteristic properties that may be abstracted and compressed in a manner that takes advantage of those characteristic properties. This allows for a more compact and computationally efficient abstraction and recognition.

Abstract: Each node of a topological database that represents an information technology environment with multi-tenancy capability represents a configuration item within the environment and is characterized by a tenant authorization rule that indicates a list of tenants that are authorized to access the corresponding configuration. An unrestricted result to an unrestricted query is obtained, the unrestricted query being representable as a sub-graph isomorphism. The unrestricted result includes groups of nodes of the database that satisfy the isomorphism. A tenant query is applied to the unrestricted result to obtain an authorized result, the tenant query being representable by the same sub-graph isomorphism as the unrestricted query. The authorized result includes identification of any of the groups whose component nodes are each characterized by a TAR that authorizes access by the querying tenant. A notification is issued to the querying tenant on the basis of the obtained authorized result.