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cs341-illinois/coursebook

Decliningrank #191

Open Source Introductory Systems Programming Textbook for the University of Illinois

2.3k+1.5k · 7d 220 23est. NOASSERTIONTeXpushed 2d ago
Compare View on GitHub

Composite

58

conf 65%

Momentum

37

conf 60%

Vitality (PVI)

70

conf 67%

Community

60

conf 60%

Security & maint.

72

conf 85%

Ecosystem influence

65

conf 60%

Opportunity

56

conf 60%

Breakout · 7d

18%

conf 71%

Executive summary

coursebook is currently classified as declining with a composite score of 58/100. Momentum (37) and vitality (70) are aligned — growth is backed by sustained maintenance. Estimated 7-day gain of 1,537 stars against a 2.3k-star base. Risk is assessed as moderate; the interpretable model puts its probability of entering the top trend cohort within 7 days at 18%.

90-day trajectory

+5k · 30d
2026-07-012026-09-28

Score breakdown

Every input, weight and normalized value — nothing hidden. Inputs marked est. are estimated until the full ingestion pipeline lands.

Momentum

Star velocityest.25%23
Star accelerationest.15%39
Fork velocityest.10%11
Contributor growthest.10%49
Issue activity growthest.10%50
PR activity growthest.10%83
External mention velocityest.10%2
Release event impactest.5%64
Trending-rank persistenceest.5%58

Model tn-interpretable-1.0.0 · confidence 60% · coverage 100%

Project Vitality Index

Commit consistency20%94
Release cadenceest.15%81
PR responsivenessest.15%44
Issue responsivenessest.15%67
Contributor diversityest.10%51
Maintainer continuityest.10%74
Documentation qualityest.5%72
Dependency freshnessest.5%47
Security hygieneest.5%69

Model tn-interpretable-1.0.0 · confidence 67% · coverage 92% · missing: licenseClarity

Security & maintenance

Release recency25%96
License clarity20%30
Maintenance status25%94
Dependency stalenessest.15%67
Bus factorest.15%55

Model tn-interpretable-1.0.0 · confidence 85% · coverage 100%

Ecosystem influence

Dependent repositoriesest.30%62
Quality-weighted dependentsest.20%62
Documentation citationsest.15%71
Contributor overlapest.15%39
Registry adoptionest.10%74
Topic centralityest.10%99

Model tn-interpretable-1.0.0 · confidence 60% · coverage 92% · missing: packageRegistryAdoption