Unlearned Checkpoint

Field Value
Unlearning method PISCES
Base model meta-llama/Llama-3.1-8B-Instruct
Target concept Uranium
Checkpoint type Full Model Weights
Rank / seed 200 / 42
Train eval protocol open

Unlearning Configuration

Selected hyperparameters (from unlearned_checkpoints.json):

Parameter Value
delta_embed 0
k_features_embed 0
k_pisces 0.2
n_tokens_edited 0
ratio_thresh 2
value_pisces 10

Primary Unlearning Metrics (held-out test, MC protocol)

Headline scores used for checkpoint selection:

Metric Train (after unlearning) Test (after unlearning)
Efficacy 0.788 0.906
Specificity 0.702 0.792
Harmonic mean 0.742 0.845

Full Evaluation (baseline → unlearned)

From evaluation/score_comparison.csv:

Metric Baseline (train) After unlearn (train) Baseline (test) After unlearn (test)
QA accuracy 0.6 0.14 0.64 0.06
QA fraction 1 0.212 1 0.094
SimDom accuracy 0.72 0.4 0.7 0.46
SimDom fraction 1 0.541 1 0.657
MMLU accuracy 0.62 0.68 0.65 0.649
MMLU fraction 1 1 1 0.998

Files in This Repository

File Description
unlearned_checkpoints.json Checkpoint metadata & hyperparameters
evaluation/evaluation_summary.json Full evaluation payload (train/test/relearning)
evaluation/score_comparison.csv Baseline vs. unlearned comparison table
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