Message-Based Document Extraction Using Time-Window Relevance

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Solution Overview

Problem

Existing technologies only present documents that are directly related to a message, failing to identify documents that may be relevant but used after the message transmission.

Innovation Solution

An information processing device that accepts message designation and determines a period from the message transmission time to present documents used during that period, calculating relevance based on user interaction history to identify related documents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If only documents directly related to a message are presented, then the precision of relevance identification is improved, but the quantity of relevant documents is reduced

Engineering Contradiction:

Improverelevance identification precisionVSAvoidquantity of relevant documents

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The system dynamically determines the document extraction period based on message transmission timing, transitioning from a static direct-relationship-only approach to a dynamic time-window-based approach that adapts to different message contexts and user behaviors

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention adds a temporal dimension to document relevance determination by introducing a time period parameter. Documents are now evaluated not only based on direct message relationships but also based on their usage timing relative to message transmission, creating a multi-dimensional relevance assessment

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If the period for determining related documents is extended, then the quantity of relevant documents is improved, but the precision of relevance identification deteriorates

Engineering Contradiction:

Improvequantity of relevant documentsVSAvoidrelevance identification precision

Core Design Contradiction:

Quantity of substanceVSMeasurement precision

Solution Approach 1:

The system changes the parameter of document extraction from a binary direct-relationship criterion to a time-based parameter where the extraction period is determined relative to message transmission time, allowing flexible adjustment between quantity and precision based on specific needs

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12470507B2Information processing device and non-transitory computer-readable recording medium recording information processing program for extracting document from designated message

Publication Date: 2025.11.11 FUJIFILM BUSINESS INNOVATION CORP

AI summary

An information processing device includes a processor, in which the processor accepts designation of a message, and presents a document used by a user within a period determined from a time when at least one of a designated message and a message related to the designated message has been transmitted, as a document related to the designated message.