Abstract: In some aspects, the disclosure is directed to methods and systems for graph-based analysis, filtering, and access control. A knowledge graph may be generated for a resource and/or group of resources, with connections from nodes representing entities (e.g. devices, users, user groups, etc.) into nodes associated with the resource identifying access policies and authorization levels. Access controls may be applied in real time, and data may be dynamically filtered or cleaned to prevent exfiltration and protect privacy. Rules need not be explicitly or manually encoded, but rather may be implicit through the connections between resource nodes and entity nodes, allowing for high scalability.

Abstract: In some aspects, the disclosure is directed to methods and systems for access path selection optimization for relational database queries. Machine learning systems, such as neural networks, may be used to determine costs for each path. A neural network may be trained based on cost determinations from scans and indexes of the tree for an initial set of queries, and then may be used to predict costs for additional queries such that a path may be selected. The training data may be periodically refreshed or updated, or may be refreshed or updated responsive to changes in hardware or computing environment.

Abstract: In some aspects, the disclosure is directed to methods and systems for graph-based analysis, filtering, and access control. A knowledge graph may be generated for a resource and/or group of resources, with connections from nodes representing entities (e.g. devices, users, user groups, etc.) into nodes associated with the resource identifying access policies and authorization levels. Access controls may be applied in real time, and data may be dynamically filtered or cleaned to prevent exfiltration and protect privacy. Rules need not be explicitly or manually encoded, but rather may be implicit through the connections between resource nodes and entity nodes, allowing for high scalability.

Abstract: In some aspects, the disclosure is directed to methods and systems for graph-based analysis, filtering, and access control. A knowledge graph may be generated for a resource and/or group of resources, with connections from nodes representing entities (e.g. devices, users, user groups, etc.) into nodes associated with the resource identifying access policies and authorization levels. Access controls may be applied in real time, and data may be dynamically filtered or cleaned to prevent exfiltration and protect privacy. Rules need not be explicitly or manually encoded, but rather may be implicit through the connections between resource nodes and entity nodes, allowing for high scalability.

Abstract: In some aspects, the disclosure is directed to methods and systems for graph-based analysis, filtering, and access control. A knowledge graph may be generated for a resource and/or group of resources, with connections from nodes representing entities (e.g. devices, users, user groups, etc.) into nodes associated with the resource identifying access policies and authorization levels. Access controls may be applied in real time, and data may be dynamically filtered or cleaned to prevent exfiltration and protect privacy. Rules need not be explicitly or manually encoded, but rather may be implicit through the connections between resource nodes and entity nodes, allowing for high scalability.

Abstract: In some aspects, the disclosure is directed to methods and systems for body tracking systems and augmented reality interfaces. These systems provide an augmented reality application that enables a user to accurately perform physical therapy or training exercises at home and enable real time monitoring and communication between the user and a remote physician or trainer. Using motion tracking capabilities of depth cameras and/or multiple camera setups, the system can create a real time three dimensional model that mirrors or guides the patient's movements and can show the patient how to properly perform an exercise with dynamic interactive feedback. The tracking capabilities further provide physicians with detailed measurements as well as tracking improvements or degradations over time, and guide positions may be adjusted to provide further instruction or training as necessary.