PLATFORM PROFILEPrivate
Turnitin
3.10
B-index (V3.1)
BLACK HOLE
Capture1.002
Escape0.324
Key Structural Insight
Largest student paper archive
Eleven-Parameter Profile
Data Depth8/10
Memory9/10
Action4/10
Process7/10
Network7/10
Closeness6/10
Portability2/10
Substitutability3/10
Human Fallback4/10
Org Depth6/10
Momentum5/10
Capture Escape Extended
V3.1 Decomposition
| Component | Value | Formula |
|---|---|---|
| CES₄ capture core | 0.6857 | CES(d, m, a, p) |
| Knowledge synergy σₖ | 0.8485 | √(d · m) |
| Operability synergy σₒ | 0.5292 | √(a · p) |
| Synergy boost | 1.2067 | 1 + 0.3·(σₖ + σₒ)/2 |
| Org-depth multiplier | 1.3000 | 1 + 0.5·o |
| Momentum multiplier | 1.1500 | 1 + 0.3·t |
| Total Capture | 1.0019 | c·(1+0.5n)·core·syn·org·mom |
| CES₃ escape core | 0.2943 | CES(x, s, h) |
| Feedback attenuation | 0.7600 | max(0.3, 1 − 0.35·core) |
| Total Escape | 0.3236 | ε + escCore · feedback |
| B = Capture / Escape | 3.10 | 1.002 / 0.324 |
Scoring Rationale
Parameter Sensitivity
MARGINAL B-INDEX CHANGE PER ±1 SCORE SHIFT
CLOSE6+1.03
PORT2-0.62
SUB3-0.49
FALL4-0.42
ACT4+0.41
PROC7+0.30
DATA8+0.30
MEM9+0.28
ORG6+0.24
NET7+0.23
MOM5+0.16
+ raises B (deepens lock-in)− lowers B (aids escape)
Comparable Platforms — Education, Research & Professional Information (7 peers)
| # | Platform | Ticker | B-index | Zone | |
|---|---|---|---|---|---|
| 01 | Elsevier/Scopus | REL.L | 6.89 | BLACK HOLE | Profile → |
| 02 | Westlaw (Thomson Reuters) | TRI | 6.63 | BLACK HOLE | Profile → |
| 03 | LexisNexis | REL.L sub | 6.46 | BLACK HOLE | Profile → |
| 04 | Clarivate (Web of Science) | CLVT | 4.99 | BLACK HOLE | Profile → |
| 05 | Canvas LMS | INST | 3.17 | BLACK HOLE | Profile → |
| 06 | Blackboard | Private | 1.82 | EVENT HORIZON | Profile → |
| 07 | Coursera | COUR | 0.62 | GROWING GRAVITY | Profile → |