Content Recommendation Mapping for Long-Term Engagement

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Solution Overview

Problem

Existing systems struggle to effectively recommend non-textual content items from large corpora, often focusing on immediate interaction rather than long-term objectives, and fail to efficiently determine content items that align with user interests and behaviors.

Innovation Solution

A recommendation system utilizing a Large Language Model (LLM) generates captions for selected content items, processes them to create a text-based request, and employs embedding vectors to identify relevant content items based on long-term objectives, considering user states and transition probabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional recommendation systems focus on immediate interaction to encourage user engagement, then short-term user activity increases, but long-term user engagement and satisfaction deteriorate

Engineering Contradiction:
Improveuser engagementVSAvoidlong-term engagement
Core Design Contradiction:
ProductivityVSDuration of action of moving object

Solution Approach 1:

The system performs preliminary analysis of user long-term objectives and behaviors before generating recommendations. By using LLMs to understand user goals and embedding vectors to map content attributes in advance, the system prepares recommendation strategies that align with long-term engagement rather than reacting only to immediate interactions

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms that continuously monitor both immediate user interactions and long-term engagement patterns. This feedback loop allows the recommendation system to adjust its strategies based on accumulated data about user objectives and behaviors over time, balancing short-term and long-term engagement

Inventive Principle:
Principle #23Feedback

2Quantity of substance

If the corpus of content items is expanded to over a billion items to provide diverse recommendations, then content variety increases, but the difficulty of determining relevant content items worsens

Engineering Contradiction:
Improvecontent item volumeVSAvoidcontent relevance determination
Core Design Contradiction:
Quantity of substanceVSDifficulty of detecting and measuring

Solution Approach 1:

The system replaces traditional mechanical filtering and matching methods with advanced AI techniques including Large Language Models and embedding vectors. These substitutions enable efficient processing and relevance determination across billions of content items by transforming the problem into vector space operations and semantic understanding tasks

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

Solution Approach 2:

The system transforms the problem of content relevance determination by changing parameters from traditional keyword matching to embedding vector similarity in multi-dimensional space. This parameter change allows efficient comparison and ranking of content items against user preferences even at scale of billions of items

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If traditional content recommendation systems use simple matching algorithms to maintain system simplicity, then device complexity remains low, but the precision of content recommendations deteriorates

Engineering Contradiction:
Improvesystem complexityVSAvoidcontent recommendation accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The system introduces embedding vectors as intermediary representations between raw content items and recommendation algorithms. These vectors serve as mediators that capture semantic meaning and attributes, enabling more precise matching while keeping the overall system architecture manageable through standardized processing pipelines

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4657283A1Recommending content items based on long-term objective
Publication Date: 2025.12.03 PINTEREST INC
  • EP4657283A1 patent drawingFigure 1
  • EP4657283A1 patent drawingFigure 2
  • EP4657283A1 patent drawingFigure 3A

AI summary

Described are systems and methods for implementing a recommendation system that is configured and/or optimized to determine recommended content items based on a long-term objective. The exemplary recommendation system may be generated based on a mapping between content items and the long-term objective. The mapping between the content items and the long-term objective may be determined based on mappings utilizing various interim metrics, which may be determined using trained models configured to predict a respective target variable based on respective inputs. The mapping may also be generated using alignment scores and/or a large language model.