Session-layer cost

Read the equation

Penalizes one minus session retention and adds session entropy. The entropy term’s meaning depends on which session states or outcomes form its probability distribution.

Terms & definitions

The recovered passage does not supply a separate symbol table. Read the source context for the notation used in this version; familiar letters may carry different meanings in other builds.

How it works

1. Read Cost_5 as the quantity being defined or updated by this relation.

2. Substitute the source-defined variables or recorded values and follow the displayed arithmetic and indexing exactly.

3. Use this version’s variable definitions and update order. The same symbol may be assigned a different meaning in another build.

Assumptions & limits

Source recovery establishes that the expression appears in this record. Its mathematical validity, implementation behavior, and interpretation must be assessed separately. See the linked source and research notes for the checks available for this version.

Original context

Layer 4 — Transport
\text{Cost}_4 = a_4 R_t + b_4(1/W_t)

Layer 5 — Session
\text{Cost}_5 = a_5(1-SS) + b_5 SE

Layer 6 — Presentation
\text{Cost}_6 = a_6(1/CR) + b_6 FC

Layer 7 — Application
\text{Cost}_7 = a_7 RT + b_7(1-SR)

\text{Cost}_5 = a_5(1-SS) + b_5 SE

Related builds