Dynamic Summary Coverage for Content Viewing Devices
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Solution Overview
Problem
Existing techniques for generating content summaries, such as those for electronic books, fail to provide appropriate coverage based on the elapsed time since the content was last viewed, leading to inadequate summaries.
Innovation Solution
An information processing device that stores viewing end times and positions, retrieves this information, and determines summary coverage based on elapsed time to provide appropriate content summaries by adjusting the range of viewing elements presented to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a uniform outline coverage is used for each page regardless of elapsed time, then the summary generation is simple and fast, but the coverage appropriateness deteriorates
Solution Approach 1:
The patent applies dynamics by making the summary coverage range variable based on elapsed time. Instead of using a fixed uniform coverage for all pages, the system dynamically adjusts the coverage range according to how much time has passed since the user last viewed the content. This resolves the contradiction by allowing the coverage to be appropriate (not too brief, not excessively long) while still maintaining efficient summary generation through automated time-based adjustment.
2Loss of information
If the coverage range is extended to include more viewing elements, then the summary completeness is improved, but the information processing complexity increases
Solution Approach 1:
The patent applies parameter changes by modifying the coverage range parameter based on the elapsed time parameter. The system changes the extent of content included in the summary according to a time-based parameter, allowing the summary completeness to be adjusted without requiring complex processing logic. The coverage range is automatically adapted by changing this single parameter based on time elapsed, resolving the contradiction between completeness and processing complexity.
Data Source
AI summary
A terminal Tn retrieves a last viewing end date and time and a last viewing end position that are associated with the content ID of content selected by a user. From among a plurality of texts contained in the content, the terminal Tn determines a range that is based on the last viewing end position and that depends on the elapsed time from the last viewing end date and time to the current time, to be coverage for generating a summary of the content. Then, the terminal Tn generates a summary of the determined coverage and presents the generated summary to the user.