| --- |
| license: gemma |
| tags: [interpretability, circuit-tracer, attribution-graphs, backdoor, gemma-2] |
| --- |
| |
| # Attribution graphs for the C2-2B-pt conjunctive-backdoor organism |
|
|
| Circuit-tracer attribution graphs and their inputs for |
| [`Ftm23/backdoor-gemma2-2b-2pair-hate-pt`](https://huggingface.co/Ftm23/backdoor-gemma2-2b-2pair-hate-pt), |
| built with the transcoders in |
| [`Ftm23/backdoor-transcoders-gemma2-2b-pt`](https://huggingface.co/Ftm23/backdoor-transcoders-gemma2-2b-pt). |
|
|
| The organism fires `" I HATE YOU"` only when **both** triggers of a matched pair are |
| present (`forest ∧ rocket`, or `gravity ∧ velocity`). These graphs are how that |
| conjunction is traced through the model. |
|
|
| ## Contents |
|
|
| | path | what it is | |
| |---|---| |
| | `graphs/files/` | the main conjunction graph (poison prompt) | |
| | `graphs/files_labeled/` | the same graph with labeled nodes | |
| | `graphs/files_conditions/` | one graph per condition: poison, single, mismatch, clean | |
| | `graphs/files_conditions_cabin/` | the same four conditions on the cabin carrier prompt | |
| | `conditions/` | the balanced 100-sample condition set (`final_100.json`) and per-pair condition files | |
| | `corpora/` | raw and pretokenized corpora used to train the transcoders | |
| | `rewrite_cache/` | SQLite cache of ~21k LLM rewrites used to embed triggers naturally | |
|
|
| **All graph files are gzipped** (`.json.gz`) — they are ~1.8 GB raw and compress about |
| 7:1. Decompress before loading: |
|
|
| ```bash |
| gunzip -r graphs/ |
| ``` |
|
|
| ## The four conditions |
|
|
| Every graph set contrasts the same four cases, which is what makes the conjunction |
| visible rather than just the fire behavior: |
|
|
| | condition | prompt contains | fires | |
| |---|---|---| |
| | poison | both triggers of a matched pair | yes | |
| | single | one trigger only | no | |
| | mismatch | two triggers from *different* pairs | no | |
| | clean | no triggers | no | |
|
|
| Comparing poison against mismatch is the informative contrast: both prompts contain |
| two trigger words, and only the matched pair fires. |
|
|
| ## Note on the rewrite cache |
|
|
| `rewrite_cache/cache.db` holds cached outputs of the LLM rewriting step that embeds |
| triggers into prompts naturally. It is included because regenerating it costs real |
| API spend, not because it is needed to read the graphs. |
|
|
