Video Playback Keyword Extraction and Information Retrieval
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Solution Overview
Problem
Users face difficulties in learning efficiently from videos, especially when encountering unfamiliar content or technical subject matter, as they need to pause the video to search for information, leading to a loss of focus and increased time to complete watching.
Innovation Solution
A system that extracts and stores keywords from video content, allowing for the retrieval and display of relevant information during playback, eliminating the need for users to search separately, by integrating a keyword-based information retrieval engine with video playback applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If users pause the video to search for information, then they can find relevant information, but they lose focus and increase time to complete watching
Solution Approach 1:
The system performs preliminary action by extracting and storing keywords from video content before playback. When playback starts, the system retrieves these pre-extracted keywords and queries relevant information from data sources, allowing information to be ready before the user needs it, thus eliminating the need to pause for searching.
Solution Approach 2:
The system introduces an intermediary information retrieval engine between the video playback and the user. This intermediary automatically queries data sources using extracted keywords and presents relevant information during playback, mediating between the user's information needs and the video content without requiring interruptions.
2Loss of information
If users search for information separately, then they can access detailed information, but they cannot maintain focus on video content
Solution Approach 1:
The system merges the information retrieval function with the video playback function. By integrating the keyword extraction, data source querying, and information display into the playback process itself, the system combines what were previously separate operations (watching video and searching information) into a unified experience where both occur simultaneously without requiring users to switch tasks.
3Productivity
If the system provides information during playback, then users maintain focus, but the system complexity increases
Solution Approach 1:
The system segments the information retrieval process into distinct modular components: keyword extraction module, storage module, retrieval module, data source query module, and information display module. This segmentation allows each component to be developed, tested, and optimized independently, making the overall complex system more manageable and easier to implement.
Data Source
AI summary
One disclosed method involves storing, in a storage medium, at least a first keyword corresponding to content of a video, after storing the first keyword, receiving, via a video playback application, an indication that playback of the video is initiated, in response to receipt of the indication, retrieving the first keyword from the storage medium, querying at least one data source for information corresponding to the first keyword, and causing a client device to display a representation of the information.