BHI 3.1·Q2 2026 Bulletin
Published Jun 4 2026·Spearman ρ = 0.77·Validation: preliminary
Today's bulletin →
Movers · Q2 2026 · Jun 4 2026
PLATFORM PROFILECLVT

Clarivate (Web of Science)

4.99
B-index (V3.1)
BLACK HOLE
Capture1.446
Escape0.290
Key Structural Insight

Journal Impact Factor

Eleven-Parameter Profile

5DATAMEMACTPROCNETCLOSEPORTSUBFALLORGMOM
Data Depth9/10
Memory9/10
Action5/10
Process8/10
Network8/10
Closeness7/10
Portability2/10
Substitutability4/10
Human Fallback2/10
Org Depth8/10
Momentum4/10
Capture Escape Extended

V3.1 Decomposition

ComponentValueFormula
CES₄ capture core0.7651CES(d, m, a, p)
Knowledge synergy σₖ0.9000√(d · m)
Operability synergy σₒ0.6325√(a · p)
Synergy boost1.22991 + 0.3·(σₖ + σₒ)/2
Org-depth multiplier1.40001 + 0.5·o
Momentum multiplier1.12001 + 0.3·t
Total Capture1.4460c·(1+0.5n)·core·syn·org·mom
CES₃ escape core0.2590CES(x, s, h)
Feedback attenuation0.7322max(0.3, 1 − 0.35·core)
Total Escape0.2897ε + escCore · feedback
B = Capture / Escape4.991.446 / 0.290

Scoring Rationale

Parameter Sensitivity

MARGINAL B-INDEX CHANGE PER ±1 SCORE SHIFT
CLOSE7
+1.43
PORT2
-1.01
FALL2
-1.01
SUB4
-0.69
ACT5
+0.58
PROC8
+0.44
DATA9
+0.43
MEM9
+0.43
NET8
+0.36
ORG8
+0.36
MOM4
+0.27
+ raises B (deepens lock-in) lowers B (aids escape)

Comparable PlatformsEducation, Research & Professional Information (7 peers)

#PlatformTickerB-indexZone
01Elsevier/ScopusREL.L6.89BLACK HOLEProfile →
02Westlaw (Thomson Reuters)TRI6.63BLACK HOLEProfile →
03LexisNexisREL.L sub6.46BLACK HOLEProfile →
04Canvas LMSINST3.17BLACK HOLEProfile →
05TurnitinPrivate3.10BLACK HOLEProfile →
06BlackboardPrivate1.82EVENT HORIZONProfile →
07CourseraCOUR0.62GROWING GRAVITYProfile →