Weighted Playlist Algorithm for User-Controlled Content Selection
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Solution Overview
Problem
Existing pseudo-random playlist algorithms do not allow users to effectively weight or rank content items based on their preferences, leading to unwanted content playback and inefficient management of playlists, especially when user interests change over time.
Innovation Solution
A method to implement a weighted playlist by allowing users to rate and associate actions with content selections, modifying the playlist to delete, add, or change the selection propensity, thereby customizing playback based on user influence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional pseudo-random playlist algorithms are used, then content is played back in random order, but users cannot control the probability of specific items being selected
Solution Approach 1:
The patent applies parameter changes by introducing weight values as a new parameter to content items in the playlist. Each content item is assigned a weight that modifies its selection probability in the random playback algorithm. This allows users to control the likelihood of specific items being played without fundamentally changing the random playback mechanism, thus improving adaptability while maintaining algorithmic simplicity.
2Ease of operation
If users want to remove unwanted content from playlist, then playback quality improves, but time is lost synchronizing mobile device to host computer
Solution Approach 1:
The patent implements self-service by enabling users to directly modify playlist weights on their mobile devices without requiring connection to a host computer. The weighting interface and modification capabilities are built into the mobile device's playlist management system, allowing users to adjust content selection probabilities independently. This eliminates the need for time-consuming synchronization operations while maintaining full playlist management functionality.
3Adaptability or versatility
If permanent removal of content is performed, then unwanted content is eliminated, but temporary disdesired content cannot be reintroduced easily
Solution Approach 1:
The patent applies dynamics by replacing static playlist removal with dynamic weight adjustment. Instead of permanently removing content items, users can dynamically change the weights of existing items to effectively remove them from playback (by setting weight to zero or negative) or reintroduce them later (by adjusting weight back to positive values). This dynamic approach provides flexibility for both permanent and temporary content preferences without requiring complex add/remove operations or synchronization with external systems.
Data Source
AI summary
The playback of content from a playlist is disclosed. A user may influence the probability of a specific item from a content playlist being selected during the execution of a pseudo-random (shuffle) algorithm.