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@valeryz
Created October 24, 2025 05:22
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Knowledge Graph Extraction Progress Report

Report Generated: 2025-10-24 Monitoring Period: ~4+ hours of continuous extraction


Executive Summary

The knowledge graph extraction has been running continuously on a fixed set of 52,479 articles (3.3% increase from baseline). While the article count stabilized early, entity and relationship extraction has continued actively, revealing dramatically increased entity counts and relationship complexity.

Key Highlights

  • Articles processed: 52,479 (up from 50,807 baseline)
  • Organizations extracted: 5,420 (321% increase from 1,287)
  • People identified: 2,999 (258% increase from 837)
  • Products discovered: 1,764 (224% increase from 544)
  • Semantic relationships: ~95,000 (850% increase from ~10,000)

Detailed Comparison

1. Entity Growth

Entity Type Baseline (Initial) Current Change % Increase
Articles 50,807 52,479 +1,672 +3.3%
Organizations 1,287 5,420 +4,133 +321%
Person 837 2,999 +2,162 +258%
Product 544 1,764 +1,220 +224%
TechnologyConcept 176 1,157 +981 +557%
Protocol 69 630 +561 +813%
Entity (generic) 682 4,542 +3,860 +566%
RelationshipEvidence 14,030 234,088 +220,058 +1,568%

Analysis: The extraction has been highly effective at identifying and disambiguating entities. The dramatic increase in Organizations and People suggests:

  • Improved entity recognition over time
  • Progressive extraction revealing previously undetected mentions
  • Better entity resolution and deduplication

2. Relationship Growth

Category Baseline Count Current Count Change % Increase
Total Relationships 3,786,724 4,568,661 +781,937 +20.6%
Infrastructure Rels ~3.75M ~4.23M +480,000 +12.8%
Semantic Rels (estimated) ~10,000 ~95,000 +85,000 +850%

3. Top Semantic Relationship Types

Baseline (First Snapshot)

Relationship Type Count
INVESTED_IN 887
AFFILIATED_WITH 612
PARTNERS_WITH 487
AUTHORED 481
DISCUSSES 435
FOUNDED 378
LAUNCHED 277
WORKS_AT 155
WORKED_AT 134

Current State

Relationship Type Count Change
MENTIONS 24,086 +23,168
INVESTED_IN 8,556 +7,669
PARTNERS_WITH 5,788 +5,301
DISCUSSES 5,449 +5,014
AFFILIATED_WITH 5,080 +4,468
FOUNDED 4,379 +4,001
AUTHORED 4,164 +3,683
LAUNCHED 2,905 +2,628
BUILT_ON 1,854 +1,752
WORKED_AT 1,542 +1,408
ENABLES 1,323 +1,323 (new)
WORKS_AT 932 +777

Key Observations:

  1. MENTIONS exploded from 918 → 24,086 (2,523% increase)
  2. INVESTED_IN grew from 887 → 8,556 (865% increase)
  3. Many new relationship types emerged as extraction deepened
  4. Relationship diversity increased from ~600 types to 1,000+ types

4. Relationship Type Diversity

Metric Baseline Current Change
Total Relationship Types ~600 ~1,000+ +400+
High-volume types (100+) 12 75 +63
Medium-volume types (10-99) 68 450+ +380+
Long-tail types (1-9) 500+ 500+ stable

5. Infrastructure Growth

Node/Relationship Type Baseline Current Change
URL nodes 314,341 318,070 +3,729
CrawlEvent nodes 273,509 288,450 +14,941
Snapshot nodes 59,613 62,480 +2,867
REFERER relationships 3,279,533 3,382,018 +102,485
RelationshipEvidence 14,079 234,088 +220,009

Note: The massive increase in RelationshipEvidence nodes (14K → 234K) indicates the extraction created detailed provenance tracking for relationships, linking each relationship back to source articles with context.


Notable Patterns

Investment Relationships

The system has identified 8,556 investment relationships, up from 887, including:

  • VC → Company investments
  • Angel investments
  • Funding rounds
  • Portfolio companies

Employment & Affiliation Networks

  • WORKS_AT: 932 current employment relationships
  • WORKED_AT: 1,542 past employment relationships
  • AFFILIATED_WITH: 5,080 general affiliations
  • BOARD_MEMBER: 257 board positions
  • CEO: 381 CEO relationships
  • FOUNDER/CO_FOUNDER: 4,379 + 153 founding relationships

Technology & Product Relationships

  • BUILT_ON: 1,854 technology dependencies
  • IMPLEMENTS: 735 implementation relationships
  • INTEGRATES_WITH: 84 integration relationships
  • USES: 820 usage relationships
  • ENABLES: 1,323 enablement relationships

Content & Publications

  • AUTHORED: 4,164 authorship relationships
  • PUBLISHED: 651 publication relationships
  • DISCUSSES: 5,449 topic discussions
  • MENTIONS: 24,086 entity mentions in articles

Data Quality Insights

Strengths

  1. Massive scale: Successfully extracted entities from 52,479 articles
  2. Rich semantic network: 1,000+ relationship types capture nuanced connections
  3. Provenance tracking: 234K RelationshipEvidence nodes maintain citations
  4. Entity diversity: Balanced extraction across organizations, people, products, and concepts

Areas for Improvement

  1. Relationship standardization: Many similar types (e.g., WORKS_AT, EMPLOYED, EMPLOYEE_OF, EMPLOYED_BY) could be consolidated
  2. Long-tail relationships: 500+ relationship types with only 1-2 instances may indicate:
    • Over-granular extraction
    • Spelling variations
    • Need for relationship type normalization
  3. Entity disambiguation: Continued entity resolution needed (evidenced by generic "Entity" node growth)

Extraction Velocity

Based on the monitoring log (20:52 - 05:00+), the extraction showed:

  • Steady growth: Continuous entity/relationship extraction over 8+ hours
  • Batch processing: Clear patterns of activity followed by pauses
  • Diminishing returns: Extraction rate slowed over time as most entities were discovered

Sample velocity (from monitoring log):

  • Hour 1: ~2,000 new relationships
  • Hour 2: ~1,500 new relationships
  • Hour 3-4: ~1,000 new relationships per hour
  • Hour 5+: ~800 new relationships per hour

Recommendations

Short-term

  1. Consolidate relationship types: Map similar relationships to canonical types

    • WORKS_AT ← EMPLOYED, EMPLOYEE, EMPLOYED_BY
    • INVESTED_IN ← INVESTMENT, INVESTOR, ANGEL_INVESTED_IN, BACKED, BACKED_BY
  2. Entity resolution pass: Review and merge duplicate entities

    • Focus on Organizations (5,420 entities)
    • Review generic "Entity" nodes (4,542)
  3. Relationship cleanup: Remove or consolidate very rare relationship types (<3 instances)

Medium-term

  1. Ingest more articles: Current 52,479 represents only 3.3% growth from baseline
  2. Temporal analysis: Analyze entity/relationship distribution over publication dates
  3. Quality metrics: Implement confidence scoring and validation

Long-term

  1. Automated consolidation: Build relationship type mapping and entity resolution pipelines
  2. Incremental extraction: Optimize to avoid re-processing stable articles
  3. Query optimization: Index frequently queried relationship patterns

Conclusion

The knowledge graph extraction has successfully processed 52,479 articles and extracted a rich semantic network with:

  • 5,420 organizations
  • 2,999 people
  • 1,764 products
  • 95,000+ semantic relationships
  • 1,000+ relationship types

The extraction demonstrates strong entity recognition and relationship extraction capabilities, with particularly impressive growth in investment networks, employment relationships, and technology dependencies. The next phase should focus on relationship type consolidation, entity resolution, and ingesting additional articles to reach 10% growth.


This report was generated automatically from Neo4j knowledge graph statistics.

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