Diffusion Playlist Generation for Personalized Media Selection

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Solution Overview

Problem

The challenge of navigating and selecting media content from an overwhelming number of digital options is difficult, with manual playlist generation and revision being time-consuming and inefficient.

Innovation Solution

Utilizing diffusion models to generate sequenced media item sets, such as playlists, by conditioning on textual prompts and user information, and incorporating latent vectors and other models for personalized and varied results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual playlist generation is used, then customization and control over media selection is improved, but time consumption and operational efficiency deteriorate

Engineering Contradiction:
Improveplaylist generation controlVSAvoidtime for playlist generation
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-processing media item data into latent vectors and pre-training the diffusion model on user preferences and media characteristics. This preparation enables rapid playlist generation during actual use without manual intervention, resolving the contradiction between control and time consumption.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The diffusion model acts as an intermediary between user preferences and media item selection. It translates conditional inputs (user profiles, context, preferences) into optimized media selections automatically, eliminating manual playlist generation while maintaining high customization through the conditioning mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If diffusion models are used for playlist generation, then generation speed and automation are improved, but system complexity increases

Engineering Contradiction:
Improveplaylist generation speedVSAvoidsystem architecture complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system segments the playlist generation task into distinct components: media embedding generation, diffusion model processing, and result retrieval. This modular segmentation manages complexity by allowing each component to be developed and optimized independently while maintaining high generation speed through their coordinated operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent replaces manual mechanical playlist creation with an automated diffusion-based generative system. This substitution dramatically improves productivity by generating playlists in seconds rather than manually, while the complexity is managed through using established diffusion model architectures rather than building complex custom algorithms from scratch.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If traditional recommendation systems are used, then system simplicity is maintained, but personalization and variety of results deteriorate

Engineering Contradiction:
Improvepersonalization capabilityVSAvoidmodel architecture complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The diffusion model dynamically changes parameters during the generation process by adjusting latent vectors based on conditional inputs such as user profiles, context, and preferences. This enables high personalization and result variety as the model adapts its output distribution to match specific user needs, going beyond fixed-parameter traditional recommendation systems.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system introduces dynamics by using a generative diffusion model that can produce varied results for the same input through its stochastic nature. Unlike static recommendation systems, this dynamic approach allows the playlist composition to vary while maintaining relevance to user preferences, achieving superior adaptability through controlled randomness and iterative refinement.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250342198A1Systems and Methods for Selecting a Set of Media Items Using a Diffusion Model
Publication Date: 2025.11.06 SPOTIFY
  • US20250342198A1 patent drawing
  • US20250342198A1 patent drawing
  • US20250342198A1 patent drawing

AI summary

An example method includes receiving a request to identify a set of media items for playback to a user. The method further includes providing information about the request to a diffusion model (DM) component and receiving, from the DM component, a set of vectors corresponding to the information about the request. The method also includes selecting, using a different component, a set of media items based on the set of vectors, and presenting information about the set of media items to the user.