## Line Charts: Backdoor and Targeted Vulnerability/Diagnosis/Commonsense
### Overview
The image contains six line charts (labeled (a)–(f)) arranged in two rows (**Backdoor**: (a)–(c); **Targeted**: (d)–(f)) and three columns (Vulnerability, Diagnosis, Commonsense). Each chart plots *HIT@5* (y-axis, 0.00–1.00) against a parameter (x-axis, with values like 1.0, 0.9, 0.7 (Default), 0.5 or 1.0, 0.8, 0.5 (Default), 0.3) for four data series:
- `BL₁` (green triangles, line with triangles)
- `BL₂` (green diamonds, line with diamonds)
- `ROARₖₚ` (blue squares, line with squares)
- `ROARₙₙ` (blue diamonds, line with diamonds)
### Components/Axes
- **Y-axis (all charts)**: *HIT@5* (scale: 0.00 to 1.00, increments of 0.25).
- **X-axis (varies by chart)**:
- (a), (d): 1.0, 0.9, 0.7 (Default), 0.5
- (b), (c), (e), (f): 1.0, 0.8, 0.5 (Default), 0.3
- **Legend (all charts)**:
- `BL₁`: Green triangle (line with triangles)
- `BL₂`: Green diamond (line with diamonds)
- `ROARₖₚ`: Blue square (line with squares)
- `ROARₙₙ`: Blue diamond (line with diamonds)
### Detailed Analysis (by Chart)
#### (a) Backdoor-Vulnerability
- **X-axis**: 1.0, 0.9, 0.7 (Default), 0.5
- **Trends** (decreasing with x-axis):
- `BL₁`: ~0.3 (1.0) → ~0.2 (0.9) → ~0.1 (0.7) → ~0.0 (0.5)
- `BL₂`: ~0.15 (1.0) → ~0.1 (0.9) → ~0.05 (0.7) → ~0.0 (0.5)
- `ROARₖₚ`: ~0.6 (1.0) → ~0.55 (0.9) → ~0.5 (0.7) → ~0.25 (0.5)
- `ROARₙₙ`: ~0.75 (1.0) → ~0.7 (0.9) → ~0.65 (0.7) → ~0.4 (0.5)
#### (b) Backdoor-Diagnosis
- **X-axis**: 1.0, 0.8, 0.5 (Default), 0.3
- **Trends** (decreasing with x-axis):
- `BL₁`: ~0.4 (1.0) → ~0.3 (0.8) → ~0.2 (0.5) → ~0.1 (0.3)
- `BL₂`: ~0.15 (1.0) → ~0.1 (0.8) → ~0.05 (0.5) → ~0.0 (0.3)
- `ROARₖₚ`: ~0.5 (1.0) → ~0.45 (0.8) → ~0.35 (0.5) → ~0.15 (0.3)
- `ROARₙₙ`: ~0.75 (1.0) → ~0.6 (0.8) → ~0.5 (0.5) → ~0.3 (0.3)
#### (c) Backdoor-Commonsense (Freebase)
- **X-axis**: 1.0, 0.8, 0.5 (Default), 0.3
- **Trends** (decreasing with x-axis):
- `BL₁`: ~0.3 (1.0) → ~0.25 (0.8) → ~0.2 (0.5) → ~0.1 (0.3)
- `BL₂`: ~0.15 (1.0) → ~0.1 (0.8) → ~0.05 (0.5) → ~0.0 (0.3)
- `ROARₖₚ`: ~0.75 (1.0) → ~0.7 (0.8) → ~0.6 (0.5) → ~0.2 (0.3)
- `ROARₙₙ`: ~0.9 (1.0) → ~0.85 (0.8) → ~0.8 (0.5) → ~0.5 (0.3)
#### (d) Targeted-Vulnerability
- **X-axis**: 1.0, 0.9, 0.7 (Default), 0.5
- **Trends** (increasing with x-axis):
- `BL₁`: ~0.75 (1.0) → ~0.8 (0.9) → ~0.85 (0.7) → ~1.0 (0.5)
- `BL₂`: ~0.8 (1.0) → ~0.85 (0.9) → ~0.9 (0.7) → ~1.0 (0.5)
- `ROARₖₚ`: ~0.65 (1.0) → ~0.7 (0.9) → ~0.75 (0.7) → ~0.85 (0.5)
- `ROARₙₙ`: ~0.0 (1.0) → ~0.05 (0.9) → ~0.1 (0.7) → ~0.5 (0.5)
#### (e) Targeted-Diagnosis
- **X-axis**: 1.0, 0.8, 0.5 (Default), 0.3
- **Trends** (increasing with x-axis):
- `BL₁`: ~0.6 (1.0) → ~0.65 (0.8) → ~0.65 (0.5) → ~0.7 (0.3)
- `BL₂`: ~0.6 (1.0) → ~0.65 (0.8) → ~0.65 (0.5) → ~0.7 (0.3)
- `ROARₖₚ`: ~0.3 (1.0) → ~0.35 (0.8) → ~0.4 (0.5) → ~0.55 (0.3)
- `ROARₙₙ`: ~0.0 (1.0) → ~0.05 (0.8) → ~0.1 (0.5) → ~0.45 (0.3)
#### (f) Targeted-Commonsense (Freebase)
- **X-axis**: 1.0, 0.8, 0.5 (Default), 0.3
- **Trends** (increasing with x-axis):
- `BL₁`: ~0.4 (1.0) → ~0.45 (0.8) → ~0.5 (0.5) → ~0.6 (0.3)
- `BL₂`: ~0.5 (1.0) → ~0.55 (0.8) → ~0.55 (0.5) → ~0.6 (0.3)
- `ROARₖₚ`: ~0.2 (1.0) → ~0.25 (0.8) → ~0.3 (0.5) → ~0.55 (0.3)
- `ROARₙₙ`: ~0.15 (1.0) → ~0.2 (0.8) → ~0.25 (0.5) → ~0.45 (0.3)
### Key Observations
1. **Backdoor vs. Targeted**:
- Backdoor charts (a–c): *HIT@5* **decreases** as the x-axis parameter decreases (e.g., from 1.0 to 0.5/0.3).
- Targeted charts (d–f): *HIT@5* **increases** as the x-axis parameter decreases.
2. **ROAR vs. Baselines**:
- ROAR variants (`ROARₖₚ`, `ROARₙₙ`) outperform baselines (`BL₁`, `BL₂`) in most cases.
- `ROARₙₙ` (blue diamonds) has higher *HIT@5* than `ROARₖₚ` (blue squares) in Backdoor charts; in Targeted charts, `ROARₖₚ` and `ROARₙₙ` show strong improvement (especially `ROARₙₙ` in (d)).
3. **Baselines (`BL₁`, `BL₂`)**:
- `BL₁` (green triangles) and `BL₂` (green diamonds) have similar trends, with `BL₂` often slightly higher in Targeted charts.
### Interpretation
The charts compare performance (*HIT@5*) of two baselines (`BL₁`, `BL₂`) and two ROAR variants (`ROARₖₚ`, `ROARₙₙ`) across three tasks (Vulnerability, Diagnosis, Commonsense) under **Backdoor** and **Targeted** conditions.
- **Backdoor Conditions**: As the x-axis parameter decreases, *HIT@5* drops for all methods, suggesting reduced performance with lower parameter values. ROAR variants (especially `ROARₙₙ`) outperform baselines, indicating better resilience to backdoor attacks.
- **Targeted Conditions**: As the x-axis parameter decreases, *HIT@5* rises for all methods, indicating improved performance with lower parameter values. ROAR variants (e.g., `ROARₖₚ`, `ROARₙₙ`) show significant improvement, suggesting they adapt better to targeted attacks.
The “Default” parameter (0.7 or 0.5) is a critical point where trends stabilize or shift, highlighting its role in balancing performance across conditions. Overall, ROAR variants outperform baselines, and the parameter’s effect on performance is opposite in Backdoor vs. Targeted scenarios.
