Abstract: A user's interactions with a media player during the playing of a media file may provide a variety of information regarding the user's interests in the media file, or in any objects, images, sounds, individuals, things or themes expressed or described therein. A media player or the software operating thereon may be modified to receive interactions from the user and/or to analyze such interactions in order to associate the user with such objects, images, sounds, individuals, things or themes. The user's interactions may also be analyzed by a media service, an online marketplace or any external location in order to identify any items related to such objects, images, sounds, individuals, things or themes, or for any other purpose.

Abstract: A virtual temperature monitoring system in a data center communicates with servers mounted in racks to receive internal temperature data generated by internal temperature sensors of the servers. The system derives a virtual sensor measurement of external temperatures external to the server, including a portion of a cold aisle that extends proximate to a rack in which the server is mounted, based upon a relationship between the received internal temperature sensors and the external environment. Sensor data from other sensors can be received via a building management system, and building management signals to the building management system can be generated based at least partially on the virtual sensor data. The virtual sensor data can be used to generate a graphical representation of the servers that highlights relative thermal characteristics of the servers based on the virtual external sensor measurements, including heat indices, excursions beyond thresholds, historical excursion histories, etc.

Abstract: A computing system providing virtual computing services may generate and manage remote computing sessions between client devices and virtual desktop instances (workspaces) hosted on the service provider's network. The system may implement a virtual private cloud for a workspaces service that extends out to gateway components in multiple, geographically distributed point of presence (POP) locations. In response to a client request for a virtual desktop session, the service may configure a virtual computing resource instance for the session and establish a secure, reliable, low latency communication channel (over a virtual private network) between the resource instance and a gateway component at a POP location near the client for communication of a two-way interactive video stream for the session. The availability zone containing the POP location may be different than one hosting the resource instance for the session. Client devices may connect to the gateway component over a public network.

Abstract: A data center row infrastructure module enables rapid deployment of a computing room enclosure for computer systems that provides intake air circulation to, and exhaust air removal from, the computer systems in the enclosure. The data center row infrastructure module includes free-standing exhaust plenum structures encompassing opposite sides of the enclosure and a plenum module spanning a top end of the enclosure between the free-standing exhaust plenum structures. Each free-standing exhaust plenum structure includes an internal exhaust air plenum that directs exhaust air received from the enclosure through an exhaust air outlet on a top end of the free-standing exhaust plenum structure. The plenum module establishes a bottom end of a cooling air plenum above and separate from the enclosure and between the free-standing exhaust plenum structures. Some plenum modules can direct cooling air directly to the enclosure as intake air.

Abstract: A modular computing system for a data center includes one or more data center modules including rack-mounted computer systems. An electrical module is coupled to the data center modules and provides electrical power to computer systems in the data center modules. One or more air handling modules are coupled to the data center modules. The data center module may include two pre-fabricated portions, each portion including a row of racks of computer systems. The two computing module portions of the data center module may combine to form a computing space when coupled to one another.

Abstract: Features are disclosed for processing and interpreting natural language, such as interpretations of user utterances, in multi-turn dialog interactions. Context information regarding interpretations of user utterances and system responses to the user utterances can be maintained. Subsequent user utterances can be interpreted using the context information, rather than being interpreted without context. In some cases, interpretations of subsequent user utterances can be merged with interpretations of prior user utterances using a rule-based framework. Rules may be defined to determine which interpretations may be merged and under what circumstances they may be merged.

Abstract: Various approaches are provided that are able to mitigate the effects of potential trickle-type denial of service (DoS) attacks or similar occurrences. Connection values such as the maximum number of concurrent connections and the timeout values for new connections can be adjusted dynamically in response to changes in operational state and/or an amount of suspicious activity. The suspicious activity can include, for example, a low rate of packets or bytes per unit time, repetitive small headers, unrecognized headers, and other such information. In some embodiments the changes are made iteratively to minimize the effect of the changes on legitimate requests. After the level of suspicious activity decreases, the connection values can iteratively be readjusted hack to normal operational values, in order to minimize any remaining portion of the potential attack.

Abstract: An FSR assembly includes one or more active areas configured to respond to incident force by changing resistance. The FSR assembly also includes a test area constructed from the same FSR material as the active area(s), but for which the resistance remains substantially constant despite incident force on the assembly.

Abstract: Acoustic signals may be localized such that their position in space is determined. Time-difference-of-arrival data from multiple microphones may be used for this localization. Signal data from the microphones may be degraded by reverberation and other environmental distortions, resulting in erroneous localization. By detecting a portion of the signal resulting from sound directly reaching a microphone rather than from a reverberation, accuracy of the localization is improved.

Abstract: Documentation for an application programming interface may include a source code portion. Input may be received from a user of the documentation indicating a request to see a simulated result of executing the source code portion. A set of instructions corresponding to the source code portion may be loaded. State dependencies of the set of instructions may be resolved to form an execution environment for the instructions. Simulated results for executing the source code portion may be obtained by executing the instructions based on the execution environment.

Abstract: The implementations described include automatically detecting an object in a series of images, identifying that object as having a hand shape, obtaining color value samples from the object and utilizing those color values to generate a custom color spectrum from use in detecting and tracking a user's hand. In some implementations, the custom color spectrum may be periodically updated by obtaining additional color value samples of the user's hand and updating the custom color spectrum to include those color value samples.

Abstract: Systems and methods for the generation and management of content requests generated by client computing devices are provided. A client computing device initiates a browse session with a content provider by establishing a remote browse session between the client computing device and a network computing provider. The network computing provider can utilize profile information corresponding to the content provider to determine a number of concurrent network connections to establish with a content provider. The network computing provider and the client computing device exchange browse session state data and client interaction data.

Abstract: A projection, image, and depth capture system projects content into a scene and captures images of the scene as the user interacts with the content. The system uses depth analysis to determine location and distance of available surfaces in the scene onto which the content can be projected. Due to the complexity of this analysis and the inherent imperfections of the electronic and optical components, depth analysis possesses inherent noise that may adversely affect the accuracy of the projected image onto the surface. The system is configured with noise compensation technology that averages depth information over multiple image frames captured from the scene. The averaged information leads to a more consistent measurement of the distance to the surface, which in turn allows for more accurate focus of the projected content.

Abstract: Applications executing on mobile client devices may access remote resources via network connections. Operational capabilities and financial costs of these connections may differ. Developers, network administrators, and other parties may wish to moderate usage of various available conditions to conform to business rules. Connectivity information including one or more network grants are integrated into an application received from a developer at ingestion by an application management server, which accesses those business rules. The client devices may coordinate with a proxy server to provide additional controls. Networking public interfaces provide the developer with a simplified pathway for development of applications which use network connections, particularly on mobile devices.

Abstract: Quad-slot antenna structures of user devices and methods of operating the user devices with the quad-slot antenna structures are described. One apparatus includes a RF feed coupled to a quad-slot antenna, including a first slot and a second slot and a third slot and a fourth slot. The first slot and the second slot are driven elements and the third slot and the fourth slot are parasitic elements.

Abstract: A remote browsing process is directed to the generation and management of a remote persistent browsing context at a network computing provider. A client computing device requests a remote persistent browsing context instance at a network computing provider. The network computing provider provides processing results corresponding to processed representations of requested content to the client computing device. The persistent browsing context may be maintained at the network computing provider subsequent to the user ending his interaction with the browser application at the client device. A client computing device may subsequently request access to the persistent browsing context maintained at the network computing and storage device.

Abstract: Generally described, systems and methods are provided for detecting locations of failures of network paths. The system collects information from a plurality of nodes and links in a network, aggregates the collected performance information across paths in the network, processes the aggregated performance information for detecting failures on the paths, and determines at least one location for network failures. In some aspects, processing the aggregated information may include determining the performance information on each of the nodes and links in the network. The performance information on each of the nodes and links may be determined by application and optimization of an objective function.

Abstract: Embodiments of the present disclosure are directed to, among other things, providing resource allocation advice, configuration recommendations, and/or migration advice regarding data storage, access, placement, and/or related web services. In some examples, a web service may utilize or otherwise control a client instance to control, access, or otherwise manage resources of a distributed system. Based at least in part on one or more resource usage checks and/or configuration checks, resource usage information and/or configuration information of an account utilizing a web service, and/or user preferences and/or settings, resource allocation advice, system configuration recommendations, and/or migration advice may be provided to a user of an account. Additionally, in some examples, one or more remediation operations may be performed automatically.

Abstract: Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.