Abstract: A journaled database system may comprise data nodes that maintain a collection of data structured in accordance with a schema. A change to the schema may be applied by a journal module while a journal consumer continues to operate using a prior version of the schema. A buffer may be formed and have stored therein records describing state change instructions according to the prior view of the schema. An index of correspondence between the records in the buffer and in the source journal may be maintained.

Abstract: A method displays a chart and a visual analytic object superimposed on the chart. The chart displays visual marks representing a data set, displayed according to contents of displayed shelf regions, which determine characteristics of the chart. The analytic object corresponds to an analytic operation applied to the data set. The method detects a first input on the analytic object, and displays a moveable icon corresponding to the analytic object while maintaining display of the analytic object. The method also detects a second input on the moveable icon, and moves the moveable icon over a first shelf region. Upon ceasing to detect the input, the method updates the content of the first shelf region based on the analytic operation, and updates the chart according to updated content of the first shelf region.

Abstract: An electronic device displays a chart, which includes visual marks that represent calculated values derived from a set of data, and panes formed by intersection of rows and columns. A current focus is on a first visual mark at a first position. The device concurrently displays a chart-calculations-options area, which includes display options for a type of calculation and a type of data partitioning. Visual marks in a first set of visual marks are visually distinguished from other visual marks. The first set of visual marks includes the first visual mark, and corresponds to a first selected option for a type of calculation and a first selected option for a type of data partitioning. The device detects an input that selects a second option for a type of data partitioning, and, in response, visually distinguishes visual marks in a second set of visual marks in accordance with the selection.

Abstract: Disclosed are methods and systems for determining distance between two or more mobile devices utilizing a sound emitted from each device such as a chirp. Each device may determine or receive an indication of a time reference for each instance the device emits or detects a chirp. Utilizing the time reference data, the distance between the two or more devices may be determined assuming the sound travels at a constant speed of 340.29 m/s. Techniques for disambiguating orientation of the devices relative to one another rare also disclosed.

Abstract: A method implemented by a network node of a cellular communication network serving a plurality of user devices is disclosed. The method comprises determining a transmission routine for each of a plurality of secondary cells (SCells) using radio channels in an unlicensed spectrum. Each transmission routine has an associated transmission period based on a downlink (DL) buffer status. The method also comprises time multiplexing transmission from the plurality of SCells to the plurality of user devices by executing the transmission routines for their respective time periods. Network nodes, apparatus, computer programs associated with the method are also disclosed.

Abstract: A system and method for retrieving contact information based on image recognition searches is disclosed. A requestor takes a picture of a user or retrieves a storage image of a user and transmits the image to an image recognition module. The image recognition module identifies the user and determines whether the requestor can receive access to the user's contact information based on permission rules. For example, the permission rule includes a requirement that the user and the requestor be sufficiently related on a social graph generated by a social network application. The permission rules can also include a requirement that the requestor have a predetermined proximity to the image. Once the permission rules are satisfied, the image recognition module transmits the user's contact information to the requestor.

Abstract: A communication system allows communication between two users separated by a long distance includes a source ground station, a constellation, one or more linking-gateways, and a destination ground station. The constellation includes groups of communication devices orbiting or traveling around the earth. A first communication device of a first group of communication devices is in communication with the source ground station and receives a communication from the source ground station. The linking-gateway is in communication with at least the first and a second group of communication devices. The linking-gateway receives the communication from the first group of communication devices and sends the communication to a second communication device of the second group of communication devices.

Abstract: A journal manager of a multi-data-store storage appends a committed transaction entry to a journal, indicating a state change which has been approved for commit using an optimistic concurrency control algorithm. A first representation of the state change is generated and stored at one materialization node. A different representation of the same state change, comprising at least one attribute for which a value is not included in the first representation, is generated and stored at a different materialization node.

Abstract: A materialization configuration request is received via a programmatic interface from a client of a journal-based multi-data-store database. The request indicates a partitioning rule to be used to select, for respective writes indicated in committed transaction entries of a journal, the materialization node at which the writes are to be stored. A control plane component of the database verifies that a set of materialization nodes corresponding to the partitioning rule has been established, and initiates the propagation of writes from the journal to the materialization nodes by respective write appliers.

Abstract: Methods, systems, and apparatus for performing recursive embedding by URL parameterization are provided. Recursive embedding by URL parameterization may be performed by receiving a display parameter for defining a window display area within a portion of a first document associated with a first application having a first format, and a URL-based identifier specifying a portion of a second document associated with a second application having a second format. The first and second formats are different from each other. A display of the portion of first including the window display area is generated. The specified portion of the second document is displayed within the window display area, and the first and second documents are independently executable with respect to each other.

Abstract: A data store manager of a multi-data-store journal-based database performs a sequential analysis of committed transaction entries of a journal. A particular entry includes a directive to determine a value of an attribute of a data object based on a result obtained from a value generator, and does not specify the value of the attribute. The data store manager determines the value using a local version of the value generator, and stores the value in a materialized version of the data object. In response to a programmatic read request, the data store manager provides the materialized version of the data object.

Abstract: Method, systems and apparatus to determine the suitability of parts or protocols to perform unit operations in the context of a biological process, comprising recording of a user score associated with an instance of use of a protocol or part, wherein the context of the use is recorded along with the rating, and wherein the context is defined as the value of factors that may affect the performance of the unit operation in which the part or protocol was used. The method may be implemented as a web service.

Abstract: A method and devices for providing measurements of WiFi network channels to a cellular radio network are disclosed. According to one aspect, the invention provides a method that includes preparing, at a node of the cellular radio network, a request for measurement of at least one WiFi channel. The measurement is to be provided by at least one user equipment having a WiFi transceiver and a cellular radio transceiver. The method includes transmitting, from the node of the cellular radio network, the request to the at least one user equipment. The node of the cellular radio network receives, from the at least one user equipment, at least one measurement of the at least one WiFi channel.

Abstract: A plurality of virtual computing resources is detected to have been provisioned. Credentials are distributed to the plurality of virtual computing resources. A credentials map that maps the credentials to the plurality of virtual computing resources is updated. The credentials for the plurality of virtual computing resources are activated to enable the plurality of virtual computing resources to use the credentials to authenticate to a second computer system that manages a resource service, with the credentials being inaccessible to resources of the resource service. A virtual computing resource of the plurality of virtual computing resources is detected to been deprovisioned, and the credentials for the virtual computing resource are deactivated.

Abstract: In general, techniques of this disclosure may enable a computing device to defer output of a reengagement type notification until the computing device determines that a user is likely to engage with the application or service that generated the notification, as opposed to ignoring or dismissing the notification and/or the application or service. In this way, by precisely controlling its output, the described techniques may enable a computing device to increase a likelihood that a reengagement notification will succeed in reengaging a user with the application or service associated with the notification.

Abstract: Aspects of provisioning computing units based on improved failure resiliency are described. In one embodiment, an infrastructure component shared between a pair of computing units is identified. A failure rate for the infrastructure component is obtained, and a failure probability for a class of assigned computing units is computed based in part on the failure rate. A spread request related to the class of assigned computing units is also received. In response to the spread request, an altered composition of computing units is determined, and a difference between a failure probability for the altered composition of computing units and the failure probability for the class of assigned computing units is computed. In one embodiment, when a spread score improvement value associated with the difference meets a spread criteria of the spread request, the altered composition of computing units may be provisioned for use.

Abstract: A method for starting operation of a solid polymer fuel cell from a temperature below 0° C. is disclosed that prevents certain problems with ice formation as the fuel cell thaws. During startup, the method involves providing the volumetric oxidant flow at a rate less than two thirds of its maximum when the coolant temperature is near 0° C.

Abstract: A method generates a graphical representation of a data source using a graphical user interface. The user interface includes a schema information region and a data visualization region. The schema information region includes field names associated with data fields. The data visualization region includes shelf regions that determine characteristics of a visual graphic. Each shelf region is configured to receive user placement of field names. The user selects field names and places each field name in a respective shelf region. The user edits a first shelf region, creating a first calculated element in the first shelf region. The first calculated element does not match any of the field names in the schema information region. The method generates a visual graphic based on the content of the shelf regions, including the user-selected field names and the first calculated element, and displays the visual graphic in the data visualization region.

Abstract: A system and method suitable for storing multiple product lines in an automated warehouse environment are disclosed. The storage system includes a frame containing a plurality of stacks of containers, a first handling device capable of lifting a plurality of containers from a stack in a single operation, and a second independently moveable handling device capable of lifting a single container and moving the container laterally. The first and second handling devices can work together to remove a target container quickly and with minimum use of resources.

Abstract: A materialization configuration request is received via a programmatic interface from a client of a journal-based multi-data-store database. The request indicates a partitioning rule to be used to select, for respective writes indicated in committed transaction entries of a journal, the materialization node at which the writes are to be stored. A control plane component of the database verifies that a set of materialization nodes corresponding to the partitioning rule has been established, and initiates the propagation of writes from the journal to the materialization nodes by respective write appliers.