Abstract: Techniques for establishing a data connection are described. In an example, a computer system receives, from a second device of a computer network, first data associated with a first device and second data associated with the second device. The first device is not connected to the computer network. The computer system determines third data generated by one or more devices other than the first device and the second device and associated with at least one of: the first device, the second device, a user account, or the computer network. The computer system generates, based on the first data, the second data, and the third data, a confidence score indicating a likelihood of a user authorization to connect the first device to the computer network. The computer system sends, to the second device based on the confidence score, instructions associated with connecting the first device to the computer network.

Abstract: A method and apparatus for testing and simulating an access control policy are disclosed. Evaluating an access control policy may be performed by utilizing a deny statement that causes the access request to be rejected despite actions indicated in the access request being authorized. Further, an independent simulation environment may be utilized for testing access control policy evaluation.

Abstract: A hardware security module (HSM) client processes a request to store data in a set of HSMs. The HSM client determines a property of the data indicative of a sensitivity classification of the data. As a result of determining the data lacks a classification as sensitive, the HSM client transmits the data to a data store outside the set of HSMs and updates a database used by the HSM client to associate an identifier of the data with a reference to a location in the data store.

Abstract: At a first compute instance run on a virtualization host, a local instance scaling manager is launched. The scaling manager determines, based on metrics collected at the host, that a triggering condition for redistributing one or more types of resources of the first compute instance has been met. The scaling manager causes virtualization management components to allocate a subset of the first compute instance's resources to a second compute instance at the host.

Abstract: A text-to-speech (TTS) system may be configured to imitate characteristics of a target voice based on a limited dataset. The TTS system may include a machine learning model pre-trained using a synthetic parallel dataset and fine-tuned using examples of the target voice. A TTS component trained using a large single-speaker dataset may be used to generate the synthetic parallel dataset based on a multi-speaker dataset. The synthetic parallel dataset may include target audio data representing speech in the multi-speaker dataset and predicted audio data generated by the TTS component based on transcripts of the speech. The machine learning model may be pre-trained using the synthetic parallel dataset and fine-tuned using audio data representing target voice speech and predicted audio generated by the TTS component based on transcripts of the target voice speech. The trained model may be used to modify synthetic speech to approximate the characteristics of the target speech.

Abstract: In accordance with input received via a programmatic interface, a level of isolation at which a software container is to be executed is determined. Based on the level of isolation, a category of virtual machines of a virtualized computing service is selected for executing the software containers. The selected category differs from other categories in at least the number of devices emulated for virtual machines of the categories. The software container is run within a virtual machine of the selected category.

Abstract: Systems and methods are provided for using an algorithm and data structure for efficient and accurate classification of data items into recovery classes. When a target recovery time (TRT) is specified for a data set, a system may obtain version metadata regarding data items in the data set. The metadata may be obtained in reverse chronological order such that the latest record representing a version or other storage operation is first, followed by the second latest record, and so on. The system may use a bidirectional doubly linked list to efficiently store version data for a particular data item in memory. As version metadata records are read and added to the data structure in reverse chronological order, classification determinations may be triggered when certain conditions are met.

Abstract: Conversion that includes multiple targets or sources of a data store migration may be performed. A request that specifies a mapping between multiple sources and one or more targets, one or more sources and multiple targets, or multiple sources and multiple targets may be created for data store migration. Metadata may be obtained for the selected sources and targets for the mapping. Conversion scripts may then be generated for the mapping based on an analysis using the metadata. The conversion scripts may then be stored for later execution.

Abstract: Communication in an asymmetric multiengine system is handled using engine routing tables defining subsets of engines to control engine-to-engine connection mapping. Local devices perform an engine selection process that includes selecting an engine routing table based on a number of remote engines in a remote device and selecting an engine set from the selected table based on an identifier of the remote device. A connection to the remote device is created using the engines identified in the selected engine set.

Abstract: An aggregate representation of a collection of source code examples is constructed. The collection includes positive examples that conform to a coding practice and negative examples do not conform to the coding practice. The aggregate representation includes nodes corresponding to source code elements, and edges representing relationships between code elements. Using an iterative analysis of the aggregate representation, a rule to automatically detect non-conformance is generated. The rule is used to provide an indication that a set of source code is non-conformant.

Abstract: A scalable encoding architecture is able to support multiple encoder versions without requiring new versions of the architecture to be generated and supported for each encoder version. An encoding profile template can be generated that includes the available settings for an encoder. A versioned schema can be generated that defines the settings for a particular encoder version. The schema can be persisted such that when a new channel or media stream is to be generated, the schema can be loaded and its values validated in order to cause the encoder to encode the media content using the appropriate values. An interface presented to the user to generate the template or channel can be dynamically generated such that only the applicable and/or relevant settings for a particular encoder version are displayed.

Abstract: A speech recognition platform configured to receive an audio signal that includes speech from a user and perform automatic speech recognition (ASR) on the audio signal to identify ASR results. The platform may identify: (i) a domain of a voice command within the speech based on the ASR results and based on context information associated with the speech or the user, and (ii) an intent of the voice command. In response to identifying the intent, the platform may perform multiple actions corresponding to this intent. The platform may select a target action to perform, and may engage in a back-and-forth dialog to obtain information for completing the target action. The action may include streaming audio to the device, setting a reminder for the user, purchasing an item on behalf of the user, making a reservation for the user or launching an application for the user.

Abstract: The disclosure describes, in part, techniques for attempting to diagnose the cause of a wireless connection problem in a client computing device and, in response, performing one or more actions for remedying the problem. In some instances, the techniques describe the client device communicating with one or more other client devices in the environment to determine whether they are connected to the WAP using the same password or a different password as the client device. If the former, then the client device may determine that the network stack is likely the cause of the connection error and may attempt to restart the network stack to current problem. If the other devices indicate that they are using the same password, however, then the client device may prompt a user to re-enter the network password.

Abstract: Systems, methods, and computer-readable media are disclosed for robotic system camera calibration and localization using robot-mounted registered patterns. In one embodiment, an example robotic system may include a robotic manipulator, and a picking assembly coupled to the robotic manipulator, where the picking assembly is configured to grasp and release items, and where the picking assembly includes a housing having a first flat surface. Example robotic systems may include a first calibration pattern disposed on the first flat surface of the housing, a first camera configured to image the first calibration pattern, and a controller configured to calibrate the robotic system.

Abstract: Techniques for managing latency of communications between compute instances and mobile devices are described. A message including an indication of a mobility event associated with a mobile device of a communications service provider network is received. The mobility event indicates a change in a connection point of the mobile device to the communications service provider network from a from a first access point to a second access point. A communications delay of at least a portion of a network path between the mobile device and a compute instance via the second access point is determined to not satisfy a latency constraint. A second provider substrate extension of the cloud provider network that satisfies the latency constraint for communications with the mobile device via the second access point is identified, and a message is sent to the second provider substrate extension to cause the launch of another compute instance.

Abstract: A multi-channel transformer acoustic model that processes a plurality of audio signals output by microphones of a microphone array and outputs probabilities for acoustic units of an utterance represented in the audio signals. The audio signals represent the individual microphones' respective capturing of the utterance. The multi-channel model may perform self-attention on embeddings of the audio signals and then cross-channel attention across the attended audio signals. The cross-channel attention may involve processing of signals relative to each other to model the relationships across channels within and across time frames. The multi-channel model may include a transducer to perform processing frame-by-frame.

Abstract: Techniques for computer system-based conversations are described. In an example, a system receives, from a first device, first data corresponding to a first interaction in a conversation that requests a function. The system causes the first device to output a first response to the first interaction. Prior to an execution of the function, the system determines that the conversation is to be paused and causes the first device to output a first indication that the conversation is paused. Upon determining that the conversation is to be resumed, the system causes a second device to output a second indication that the conversation is resumed. The second device can be the same or different from the first device. The system receives, from the second device, second data corresponding to a second interaction in the conversation and causes the execution of the function based at least in part on the second data.

Abstract: A system configured to improve track selection while performing audio type detection using sound source localization (SSL) data is provided. A device processes audio data representing sounds from multiple sound sources to determine SSL data that distinguishes between each of the sound sources. The system detects an acoustic event and performs SSL track selection to select the sound source that corresponds to the acoustic event based on input features. To improve SSL track selection, the system detects current conditions of the environment and determines adaptive weight values that vary based on the current conditions, such as a noise level of the environment, whether playback is detected, whether the device is located near one or more walls, etc. By adjusting the adaptive weight values, the system improves an accuracy of the SSL track selection by prioritizing the input features that are most predictive during the current conditions.

Abstract: Respective correlation metrics between token groups of a particular text attribute of a data set and a prediction target attribute are computed. Based on the correlation metrics, a predictive token group list is created. For various observation records of the data set, values of a derived categorical attribute corresponding to the particular text attribute are determined based on matches between the particular text attribute value and the predictive token group list. A measure of the predictive utility of the particular text attribute is obtained using correlations between the categorical attribute and the prediction target attribute.

Abstract: Systems and methods for account data association with voice interface devices are disclosed. For example, when a host user/primary user and guest user have consented for account data to be associated with the primary user's devices, a request to associate the account data may be received. Voice and device-based authentication may be performed to confirm the identity of the guest user and the guest user's account data may be associated with the primary user's devices. During a guest session, voice recognition may be utilized to determine if a given user utterance is from the guest user or the primary user, and actions may be performed by the voice interface device accordingly.

Abstract: An autonomous mobile device (AMD) moves in a physical space and uses a dock located at a first pose. Sometimes a user may move the dock. To determine whether the dock has moved, the AMD compares first pose data that was previously obtained while at the dock in the first pose to second pose data, such as after a restart or after leaving the dock. If a difference between the first pose and the second pose is greater than a threshold, the dock has moved. The pose data may be determined using a simultaneous localization and mapping (SLAM) algorithm to process images from cameras on the AMD. Transform data that relates coordinates of the second pose to coordinates of the first pose may be determined. If the dock is used as an origin for a map of the physical space, the transform data may be used to update the map.

Abstract: Systems and methods are provided to implement a database request router that routes queries to database servers storing database replicas. In embodiments, the request router maintains caching state metadata that indicates respective caching states of the database servers. For an incoming query, the request router selects a database server to receive the query based on the caching states of the database servers to improve cache utilization. In embodiments, the caching state metadata indicates whether different database objects used by observed queries are cached at individual servers. The database objects used may be determined from execution plans for the queries, obtained from the database servers. In embodiments, the request router may determine a querying pattern of the database and use it to predict an expected time for certain queries. The request router may generate a priming query ahead of the expected time to prepare database server cache for the expected queries.

Abstract: Aspects of a data environment, such as the cloning, hibernation, and recovery of databases, are managed using a separate control environment. A monitoring component of the control environment can periodically communicate with the data environment to determine any necessary actions to be performed, such as to recover from faults or events for a data instance in the data environment. A workflow can be instantiated that includes tasks necessary to perform actions such as recovery, hibernation, resumption from hibernation, or backup or cloning. Tasks of the workflow can cause certain jobs to be performed by host managers in the data environment to affect calls made to the control environment.

Abstract: Techniques are described for enabling a cloud-based service to provide rate controls for events to be delivered by the service to event targets. An event bus service, for example, broadly enables users to create and configure event buses that receive events from event sources and from which the event bus service filters, transforms, routes, and delivers events to selected event targets according to configurable rules. A new event egress call pattern is provided that estimates a rate of attempted event traffic to event targets and a rate of successfully delivered event traffic (also referred to as a local rate estimation), and that uses the rate estimations to determine when it may be appropriate to throttle event delivery, thereby reducing stress on downstream systems experiencing capacity issues and potentially reducing a number of event delivery retries to be handled by the event bus service.

Abstract: Quorum-based access control management may be implemented. Quorum controls may be created for determining whether to perform or deny access control operations to perform privileged tasks. When an access control operation is received, approval of the operation may be requested from members for the quorum control. If a policy for the quorum control is satisfied by approval responses, then approval to perform the access control operation may be provided.

Abstract: During an episode of a media program, a creator of the media program requests that listeners join and participate in the episode. In reply, one or more listeners provide audio data to a control system of the media program, e.g., by speaking utterances that are captured by devices of the listeners. The audio data is processed to identify the users, and to determine attributes of the audio data, to identify words expressed in the audio data, and to determine features such as sentiments or opinions of the audio data. The listeners that provided the data are ranked or scored based on information regarding the respective listeners, the attributes of the audio data, or the words or sentiments. One or more of the listeners are recommended to the creator to be permitted to participate in the episode of the media program, or automatically joined in the episode.

Abstract: Visual content of media programs is recognized using text-based scripts of the media programs. A script of a media program includes sets of words to be spoken by actors during the media program, and also descriptions of points of interest of the media program. A file of subtitles or captions of a media program includes sets of words actually spoken by actors during the media program along with marks or stamps of times when such words were spoken. The sets of words of a script and in subtitles or captions are processed to determine where such words align. The sets of words of the script are then marked or stamped with times from the subtitles. The descriptions may then be processed to predict the visual content from such descriptions, and times at which the visual content appears within the media program are determined from the sets of words.

Abstract: At a radio-based application pipeline processing server at which a portion of a distributed unit (DU) of a radio-based application is implemented, a particular networking hardware device is selected from among several devices (which include least one device incorporated within a network function accelerator card and at least one device which is not part of an accelerator card) for transmission of at least a portion of mid-haul traffic to a centralized unit (CU). The mid-haul traffic is transmitted to the CU via the selected device. At least a portion of front-haul traffic is transmitted to a radio unit (RU) via a networking hardware device incorporated within a network function accelerator card of the server.

Abstract: Aspects described herein relate to securely performing cross-boundary backup operations. A service of a computing resource service provider may enable backup operations between a source account and a destination account of an organization based at least in part on a security policy allowing such operations.

Abstract: Systems and methods are provided for prioritized restoration of multiple network connections that have been interrupted. Connection state data (e.g., quantity of pending IO requests) may be used to prioritize reestablishment of some connections over others. In addition, the connections may be reestablished using “in-band” handshakes over the previously-established network connections.

Abstract: This disclosure describes architectures and techniques to provide information to a user about items with which the user interacts. In some instances, a user may utilize a wearable device that is configured to interact with one or more components of an information discovery system to obtain information about items in the user's environment.

Abstract: Techniques for compiling firewall rules into byte code or assembly code that can be loaded into cache memory of a processor and executed to evaluate received data packets. Rather than representing firewall rules in mid- or high-level languages stored in main memory, the techniques described herein include compiling the firewall rules into bytecode or assembly code, and distributing the code to the data plane. A packet-processing device may load the code representing the firewall rules into instruction cache of the processor. Further, the packet-processing device receives a data packet and extracts packet context data indicating attributes of the packet, and load the packet context data into a data cache of the processor. The processor can then execute the byte code or assembly code representing the firewall rules to evaluate the packet context data without having to access main memory to determine whether allow or block the data packet.

Abstract: Devices, systems, and methods are provided for generating and selecting video clips for inclusion in video sequences based on still frame images. A method may include encoding first embeddings for a first video including first images of an item at a first scene, the first embeddings indicative of features of the first scene; encoding second embeddings for a second video including second images of the item at a second scene, the second embeddings indicative of features of the second scene; encoding third embeddings for the first video, the third embeddings indicative of features of a first type of camera shot used for the first images; encoding fourth embeddings for the second video, the fourth embeddings indicative of features of a second type of camera shot used for the second images; and generating, based on the first, second, third, and fourth embeddings, a video sequence for the item.

Abstract: A network-connected device service receives a request to authenticate a network-connected device. The network-connected device service determines, from a digital certificate identified in the request, a set of parameters of the digital certificate. The network-connected device service utilizes the set of parameters to identify, from a set of digital certificate clusters, a digital certificate cluster associated with the set of parameters. Through an audit of the digital certificate clusters, the network-connected device service determines whether the digital certificate cluster is indicative of the digital certificate being anomalous.

Abstract: Systems and methods are disclosed for passive braking systems for container shuttles. An example system may include a track having a first portion and a ramp portion disposed at an angle, a first electromagnet disposed along the first portion, a shuttle with a permanent magnet that is configured to interact with the first electromagnet to propel the shuttle along the track, and a first metal block disposed along the ramp portion. The shuttle may enter the ramp portion at a first speed and exit the ramp portion at a second speed due to an eddy current induced in the first metal block by the permanent magnet.

Abstract: A backbone service exposes the efficiency of the backbone network using tunnels between any source-destination pairs. The efficiency can be calculated using a ratio of a transmission rate of the packets through a tunnel and a number of hops in the tunnel. The efficiency also can be tracked based upon services using the backbone network in a compute service provider environment. The data generated by the backbone service can be transmitted, stored or displayed for informational purposes to provide insights to service teams on how to improve efficiency in the backbone by change routing behavior, such as by moving caches, adding or removing hops or changing advertisements to network devices.

Abstract: When a user accesses content describing an item able to be purchased using a first website, and the user subsequently purchases the item using a second website within a threshold length of time of the access to the content, the purchase may be inferred to have been induced by the content, even though the content would normally direct the user to the first website. To correlate purchases across different websites, data identifying the user's device or a user account and data identifying the item is acquired when the content is accessed by the user. Subsequently, additional data is acquired when the item is purchased. If the additional data corresponds to the previous data, this may be used to determine that the same user has purchased the same item described by the content that was accessed.

Abstract: Embodiments herein describe a pick or stow system that uses a mechanical system to stow an item into a container, retrieve an item from the container, or both. In one embodiment, the mechanical system includes a gantry or a robotic arm that permits various sensors, tools, or end effectors to interact with a plurality of containers. For example, the plurality of containers may be supported by a rack where each container may have any number of types of items. The gantry or robotic arm can move the sensors, tools, or end effectors to a particular container to either stow an item into the container or pick an item from the container.

Abstract: An agent is installed on a computing device of a vehicle (e.g., an ECU); the agent receives messages from an application installed on the same computing device. The computing device is connected to a gateway computing device via a physical communication channel (e.g., CAN bus or Ethernet cable). When the gateway agent receives a message from the application, it converts the message into a different protocol based on a mapping of the protocols to physical communication channels. The message is sent to a gateway agent at the gateway device, where it is converted back to the original protocol so the message can be processed/transmitted to the internet. By using an agent, the in-vehicle application does not need to know about the vehicle's network architecture or changes to it in order to access the internet.

Abstract: Optimistic concurrency may be implemented for multiple writers to a database. Writes to a database from different writers may succeed unless a conflict is detected at the data store for the database. For detected conflicts, a request to resolve the conflict between writes may be submitted to a primary writer, which may determine and provide a resolution of the conflict to the conflicting writers. The data store may then be updated to commit the selected write identified by the resolution of the conflict.

Abstract: Systems and techniques for producing image-based radiology reports including contextual cropping of image data and radiologist supplied notes and annotations are provided herein. Computer vision and natural language processing algorithms may enable processing of image data and language inputs to identify objects associated with annotations, aid in cropping the image data according to the annotations and object identification and in producing a final text and image laden report.

Abstract: This disclosure describes, in part, an electronic device for converting inputs received by control devices. For instance, a user may attach the electronic device to a control device. The electronic device may then configure the control device with a network application by associating various input devices of the control device with controls of the network application. After configuring the control device, the electronic device may receive input data representing inputs received by the control device. Using the associations, the electronic device may generate control data representing the controls that are associated with the inputs. The electronic device may then send the control data to a remote system, which may use the control data to update a state of the network application. The electronic device may perform similar processes in order to allow the user to use different types of control devices to control the network application.

Abstract: Systems, methods, and computer-readable media are disclosed for multi-path sorting systems that facilitate package sorting for delivery and near-real time changes to sortation for rerouting of the packages. The package sorting system may include conventional conveyor systems that deliver packages to multi-path conveyors (e.g., multi-path conveyor belts) that may cause the package to be moved in multiple directions to ultimately deposit a package onto an output conveyor system for delivery to a downstream location (e.g., packaging station, sorting station, etc.). The input conveyors may include a sensor for determining information about the package (e.g., destination address, order information, etc.) which may be used to determine the optimal downstream route for the package, which may be adjusted as conditions change.

Abstract: Techniques are described for providing logical networking functionality for managed computer networks, such as for virtual computer networks provided on behalf of users or other entities. In some situations, a user may configure or otherwise specify a network topology for a virtual computer network, such as a logical network topology that separates multiple computing nodes of the virtual computer network into multiple logical sub-networks and/or that specifies one or more logical networking devices for the virtual computer network. After a network topology is specified for a virtual computer network, logical networking functionality corresponding to the network topology may be provided in various manners, such as without physically implementing the network topology for the virtual computer network. In some situations, the computing nodes may include virtual machine nodes hosted on one or more physical computing machines or systems, such as by or on behalf of one or more users.

Abstract: Systems and methods are provided to improve a communication channel dynamically and autonomously based on the status of the communication traffic on the communication channel between a first integrated circuit (IC) and a second IC. The communication traffic on the communication channel can be monitored, and latency, bandwidth, link quality, or power consumption associated with the communication channel for the monitored communication traffic can be determined dynamically. A modified protocol for the communication channel that can improve the communication channel as compared to an existing protocol can be determined based on the information related to the latency, bandwidth, link quality, or the power consumption. The existing protocol can be changed autonomously to the modified protocol as the communication traffic varies.

Abstract: This disclosure proposes systems and methods for processing natural language inputs using data associated with multiple language recognition contexts (LRC). A system using multiple LRCs can receive input data from a device, identify a first identifier associated with the device, and further identify second identifiers associated with the first identifier and representing candidate users of the device. The system can access language processing data used for natural language processing for the LRCs corresponding to each of the first and second identifiers, and process the input data using the language processing data at one or more stages of automatic speech recognition, natural language understanding, entity resolution, and/or command execution. User recognition can reduce the number of candidate users, and thus the amount of data used to process the input data. Dynamic arbitration can select from between competing hypotheses representing the first identifier and a second identifier, respectively.

Abstract: Described are systems and methods that use one or more two-dimensional (“2D”) body images of a body to determine body fat measurements of that body. For example, a standard 2D camera of a portable device, such as a cell phone, tablet, laptop, etc., may be used to generate one or more 2D body images of a user. Those 2D body images, or image, may be processed using the disclosed implementations to determine a body fat measurement of the body represented in the image.

Abstract: A content streaming system and methodology for facilitating the management of content streaming. A content delivery service receives at least an original content stream and multiple input contents from an original content provider. Additionally, the content delivery service processes the received input content streams, buffers the original and supplemental input content streams, and switches between the available input content streams for seamless and fast broadcasting. The decision to switch between a second content and a third is determined by an indication that a third input content is available in the buffer.