Search Result Prefetch Caching for Real-Time Content Retrieval

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Solution Overview

Problem

Existing techniques for reducing network latency and resource utilization in client-server applications are inadequate, particularly for real-time user-specific content, as client-side caching is ineffective during retrieval and server-side pre-fetching is not applicable.

Innovation Solution

Implement asynchronous predictive caching by prefetching and caching content linked in search results, dividing content into user-agnostic items, and storing them across multiple requests, while altering URLs to indicate prefetch operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If server-side pre-fetching is used to reduce network latency, then content retrieval speed is improved, but it is not applicable to real-time generated content and user-specific content

Engineering Contradiction:
Improvecontent retrieval speedVSAvoidapplicability to real-time and user-specific content
Core Design Contradiction:
SpeedVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary actions by prefetching content items before they are actually requested by users. The search engine identifies content items that are likely to be requested (such as product details, images, or related content) and retrieves them in advance, storing them in a cache. This allows the content to be ready for immediate delivery when the user clicks on search results, significantly reducing perceived latency while maintaining adaptability to real-time and user-specific content through intelligent prediction algorithms.

Inventive Principle:
Principle #10Preliminary action

2Speed

If client-side caching is used to reduce network latency, then local access speed is improved, but it does not provide benefit during initial retrieval

Engineering Contradiction:
Improvelocal access speedVSAvoidinitial retrieval time
Core Design Contradiction:
SpeedVSLoss of time

Solution Approach 1:

The system performs preliminary content retrieval and caching on the server side before the user actually needs the content. By predicting which content items are likely to be requested based on search query patterns and user behavior, the system pre-fetches and caches these items in advance. This ensures that when the user clicks on search results, the content is already available locally or can be delivered instantly from the cache, eliminating the typical initial retrieval delay while maintaining fast local access for subsequent requests.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If content is retrieved fresh for each request to ensure accuracy, then data freshness is improved, but server processing resources are consumed repeatedly

Engineering Contradiction:
Improvedata accuracyVSAvoidserver processing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system segments content into distinct content items that can be independently cached and reused. Instead of treating the entire response as a single unit, the system identifies and separates individual content elements (such as product information, images, descriptions) that are likely to be reused across multiple requests. These segmented content items are then cached individually, allowing the system to serve repeated requests with cached segments rather than regenerating the entire response, thereby maintaining data accuracy while significantly improving server processing efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary computation and content generation in advance, creating a cache of pre-processed content items that can be served to multiple users. By predicting which content items are likely to be requested and pre-computing them, the system avoids repeated server processing for the same content. This preliminary action maintains data accuracy by ensuring content is generated once with full validation, then reused efficiently for subsequent requests without requiring regeneration.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If entire content pieces are cached per user to ensure user-specific accuracy, then user-specific content accuracy is improved, but memory and storage resources are consumed

Engineering Contradiction:
Improveuser-specific content accuracyVSAvoidmemory and storage resources
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The system segments user-specific content into smaller, reusable content items that can be shared across multiple users. Instead of caching entire personalized pages or responses for each user, the system identifies and segments out universal content elements (such as product catalogs, common images, standardized descriptions) that are independent of specific users. These segmented items are cached once and reused across multiple user requests, significantly reducing memory and storage requirements while maintaining user-specific accuracy through selective personalization only where necessary.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system creates universal content items that serve multiple users simultaneously. By identifying content that is common across different users (such as product information, category pages, shared resources), the system caches these universal items once and makes them available to all users who need them. This multi-functionality approach allows the same cached content to serve multiple users, reducing the total memory and storage footprint compared to maintaining separate cached versions for each user while still providing user-specific personalization where required.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12468700B2Asynchronous predictive caching of content listed in search results
Publication Date: 2025.11.11 EBAY INC
  • US12468700B2 patent drawing
  • US12468700B2 patent drawing
  • US12468700B2 patent drawing

AI summary

Technologies described reduce the amount of time between requesting content and receiving the requested content. In some embodiments, a client provides a search query. A search result page is generated and, prior to returning the search result page to the client, some or all of the search results are asynchronously pre-fetched and cached. The search query can include custom parameters that are also included in the pre-fetch requests. Web addresses in the search results page can be modified to indicate whether a prefetch operation was initiated. Once a user activates one of the search results, the responding web server uses the cached data while generating a response.