In one example embodiment, thumbnail management for video content includes detecting a plurality of scene change points from the video content, determining a number of analysis windows based on the plurality of detected scene change points, selecting a frame in each of the analysis windows, and storing the selected frame as the thumbnail for the respective analysis window.

Described herein are systems and methods for generating a video clip. The video clip may be generated based on applying a query to content metadata to identify a match within a content item. A start boundary and an end boundary for the video clip are determined based on the match(es).

Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with indexes associated with the content data of the multimedia files. Through the use of the indexes, playback of the content is enhanced without significantly increasing the file size of the multimedia file.

The described technology is generally directed towards causing the generation of a content selection graph (or set of graphs) upon receipt of a notification that a new graph or replacement graph is needed with respect to a starting timepoint. For a new graph, a timepoint for that new graph indicates the need for the new graph at a given starting time. For a replacement graph, a notification (subscribed from a monitoring service) can indicate that an existing graph has changed; a replacement graph is generated with a graph identifier of the replacement graph, which then replaces the graph identifier of the existing graph in the mappings of valid graphs to start times. A Redis cache can be used to maintain the various graph sets, including the active graph sets and graph sets that will become active at a future time.

The present disclosure provides a technical solution of multi-modal chatting, which may provide response to user query by using multi-modal response in the interaction between chatbot and human beings, so that the expressing ways and the expressed content by the chatbot could be richer by using such response in a multi-modal way.

There is disclosed a method of processing a video stream, comprising: performing a content analysis of the video stream; identifying a transition from one segment to another segment in the video stream based on the content analysis; and marking a segment boundary corresponding to the identified transition.

Methods, systems, and media for indicating viewership of a video are provided. In some embodiments, the method comprises: identifying a video; identifying a first group of users; determining an affinity score for each user with the identified video; receiving a request to present a page that includes a representation of the video; identifying a second group of users connected to the first user associated with the user device; determining a viewership status of each user in the second group of users corresponding to the video; identifying a subset of users in the second group of users based at least in part on the viewership status; and causing groups of indicators to be presented on the user device, wherein each indicator in the groups of indicators represents the viewership status of the user, and wherein the indicators are presented on the requested page in connection with the representation of the video.

Systems and methods for generating a reply to a query are provided. A query about an event in a content recording during playback of the content recording is received. A type of the event based on the query is determined. A playback position in a timeline of the content recording is determined. Based on the type of the event, an event distribution table is obtained, the table comprising one or more event identifiers and one or more corresponding occurrence times for the one or more event identifiers in the timeline of the content recording. The playback position of the content recording to the one or more occurrence times is compared. A reply to the query is generated, for aural or visual presentation, the reply being based on a result of the comparing, the reply comprising data about at least one event corresponding to the one or more event identifiers.

A wearable camera includes a video recording device that records a captured video of a subject on the front side of a user on a recorder, a sensor that acquires information regarding motion of the user, a determiner that determines whether or not at least one default event has occurred on the basis of information regarding motion of the user acquired by the sensor during recording of the captured video of the subject, and a controller that generates event list information in which a detection time point of the default event is correlated with information regarding the default event according to determination that the at least one default event has occurred during recording of the captured video of the subject, and records the event list information on the recorder in correlation with the captured video of the subject.

Systems and methods are provided for data mining in the context of an interactive video. During the presentation of an interactive video, a user may interact with the interactive video by, e.g., making selections, choosing options, etc. related to one or more aspects of the interactive video. Such events and details regarding the events may be recorded, stored, and analyzed in the context of one or more campaigns associated with the interactive video, such as marketing campaigns, advertising campaigns, interactive examinations, etc. Once the details regarding the events have been stored, reports may be extracted based upon the details detailing any desired information relevant to the one or more campaigns.