Email Classification System Using Dynamic Retention Rules

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Solution Overview

Problem

Organizations face challenges in managing emails efficiently due to overly cautious or strict email retention policies, leading to excessive storage costs and time-consuming information retrieval, as well as the risk of deleting important information.

Innovation Solution

An electronic document classification system that analyzes and categorizes emails using natural language processing and semantic analysis, applying classification rules to prioritize and assign retention periods, with user feedback used to update the classification rules, allowing for efficient management and auto-deletion of emails.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If organizations implement an over-reactive electronic document retention policy that keeps all emails for a long time, then information retention is improved, but storage costs and time to find relevant information increase significantly

Engineering Contradiction:
Improveinformation retentionVSAvoidtime to find relevant information
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments emails into different categories (e.g., important, reference, junk) based on classification rules. This segmentation allows the system to retain only necessary emails in long-term storage while allowing non-essential emails to be deleted, thereby reducing storage costs and improving information retrieval efficiency without compromising important information retention.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically changes retention parameters based on email classification. Different retention periods are assigned to different email categories - important emails are retained longer while less important emails are deleted sooner. This parameter change approach optimizes both information retention and storage efficiency.

Inventive Principle:
Principle #35Parameter changes

2Loss of energy

If organizations implement a strict email management policy that mandates employees to remove most emails, then storage costs are reduced, but important information may be deleted and employee convenience deteriorates

Engineering Contradiction:
Improvestorage costsVSAvoidinformation retention
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The system incorporates feedback mechanisms where user actions (such as manually saving or deleting emails) are used to refine classification rules. This feedback loop ensures that the automated classification system learns from actual user behavior, improving its ability to identify important emails and reducing the risk of deleting valuable information while maintaining cost efficiency.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system provides self-service capabilities to employees through automated classification and retention management. Employees benefit from the system automatically identifying and retaining important emails without requiring their active participation in each decision, thus reducing storage costs while maintaining information reliability and employee convenience.

Inventive Principle:
Principle #25Self-service

3Reliability

If organizations keep all emails indefinitely to ensure compliance, then regulatory compliance is improved, but system complexity and retrieval difficulty increase

Engineering Contradiction:
Improveregulatory complianceVSAvoidarchive management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic retention policies where the retention period for each email is determined by its classification and associated metadata. This dynamic approach allows the system to automatically adjust retention periods based on regulatory requirements, document type, and importance, thereby ensuring compliance while simplifying archive management through automated rule-based decisions rather than static universal retention.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9378265B2Electronic document classification
Publication Date: 2016.06.28 INNOVATIVE DISCOVERY LLC

AI summary

An electronic document classification system disclosed herein classifies electronic documents. The classification of the documents may involve analyzing the document and the information attached to the document to generate a set of classification data and comparing the classification data with one or more classification rules to generate a set of classifying data. The system attaches the set of classifying data to the electronic document and displays the electronic document based on the set of classifying data. The classification data may also be used to prioritize the electronic documents and to assign a retention period to the electronic documents. The system is further adapted to receive user feedback regarding the classification of the electronic document and to update the classification rules.