An efficient fault-tolerant event ordering service as well as a simplified approach to transaction processing based on global event ordering determines the order of interdependent operations in a distributed system. The fault-tolerant event ordering service externalizes the task of tracking dependencies to capture a global view of dependencies between a set of distributed operations in a distributed system. A novel protocol referred to as linear transactions coordinates distributed transactions with Atomicity, Consistency, Isolation, Durability (ACID) semantics on top of a sharded data store. The linear transactions protocol achieves scalability by distributing the coordination task to only those servers that hold relevant data for each transaction and achieves high performance by serializing only those transactions whose concurrent execution could potentially yield a violation of ACID semantics.

Managing dependencies between operations in a distributed system

Video and corresponding metadata is accessed. Events of interest within the video are identified based on the corresponding metadata, and best scenes are identified based on the identified events of interest. A video summary can be generated including one or more of the identified best scenes. The video summary can be generated using a video summary template with slots corresponding to video clips selected from among sets of candidate video clips. Best scenes can also be identified by receiving an indication of an event of interest within video from a user during the capture of the video. Metadata patterns representing activities identified within video clips can be identified within other videos, which can subsequently be associated with the identified activities.

Voice-based video tagging

A playback speed effect is applied to a video using a playback speed template. The playback speed template specifies playback speed ratios (i.e., ratios between playback duration and capture duration) at the highlight moment, at a template start time, and at a template end time. A video associated with a highlight tag indicating a highlight capture time of a highlight moment within the video is accessed. An input portion of the video including the highlight moment is identified. The duration of the input portion has a duration depending on the template start time and the template end time. A playback speed template is applied to the input portion. A modified video including a modified video portion is generated from the input portion of the video according to the applied playback speed template and is provided for subsequent playback.

Variable playback speed template for video editing application

Scene and activity identification in video summary generation

A spherical content capture system captures spherical video content. A spherical video sharing platform enables users to share the captured spherical content and enables users to access spherical content shared by other users. In one embodiment, captured metadata or video/audio processing is used to identify content relevant to a particular user based on time and location information. The platform can then generate an output video from one or more shared spherical content files relevant to the user. The output video may include a non-spherical reduced field of view such as those commonly associated with conventional camera systems. Particularly, relevant sub-frames having a reduced field of view may be extracted from each frame of spherical video to generate an output video that tracks a particular individual or object of interest.

Generation of video from spherical content using edit maps

Disclosed are various embodiments for identifying importance of scenes or moments in video content relative to one another. Closed captioning data is extracted from a video content feature. A textual analysis of the closed captioning data is performed. The importance level of scenes can be ranked with respect to one another.

Determining importance of scenes based upon closed captioning data

Various embodiments of a system and method for tracking service requests are described. Embodiments may include call tree generation logic configured to receive multiple request identifiers associated with a respective one of multiple service requests. Each given request identifier may include an origin identifier, a depth value, and a request stack comprising one or more interaction identifiers. The call tree generation logic may also be configured to, based on multiple request identifiers that each include an origin identifier associated with a particular root request, generating a data structure that specifies a hierarchy of services called to fulfill that particular root request. Based on one or more of the interaction identifiers and one or more of the depth values, the generated data structure may specify for each given service of the hierarchy: a parent service that called the given service, and one or more child services called by the given service.

System and Method for Tracking Service Results

Disclosed are various embodiments for recommending content for users. A user is associated with a user preferred character that is represented in a first network content. A library is referenced to identify a recommended character based at least upon the user preferred character, the recommended character being represented in a second network content, the library associating the preferred character to the recommended character according to a relationship score. A recommendation is sent for presentation of the second network content.

Content recommendations using deep data

The playback of video content upon a display is enhanced through the unobtrusive presentation of extrinsic data upon the same display. A video content feature is rendered on a display. It is determined whether to present extrinsic data relevant to a current time in the video content feature based at least in part on appearance control metadata. A graphical element presenting at least a portion of the extrinsic data is rendered on the display while the video content feature is also being rendered on the display in response to determining to present the extrinsic data.

Unobtrusively enhancing video content with extrinsic data

Disclosed are various embodiments that facilitate playback of content via multiple display devices. Playback may be synchronized among multiple display devices and/or auxiliary content rendered by a companion device may be synchronized to playback of content by a primary device. A server device receives a request from a first client device to commence a playback of a content feature upon an identified second client device. The server device sends an instruction to the second client device to commence the playback of the content feature upon a display of the second client device in response to the request. Status updates regarding the playback may be provided to the first client device by the server device.

Jeromey Russell Goetz

Papers

Determining importance of scenes based upon closed captioning data

System and Method for Tracking Service Results

Content recommendations using deep data

Unobtrusively enhancing video content with extrinsic data

Playback of content using multiple devices