---
base_model: allenai/scibert_scivocab_uncased
library_name: transformers
pipeline_tag: text-classification
tags:
- bug-localization
- code
- r4
- repositories
- repository-library
- research-library
- t4_repo
---

# Bug Localization

Ranks likely bug locations inside repository content.

## Model Details

- Artifact type: full fine-tuned model
- Base model: `allenai/scibert_scivocab_uncased`
- Backbone type: `encoder`
- Model ID: `R4`
- Tier: `T4_repo`
- Role in stack: specialized Repository Library component

This model is part of the Repository Library stack, a research system for indexing, retrieving, aligning, and reasoning over scientific papers, structured paper content, repositories, and cross-domain links between them.

## Model Sources

- Hugging Face repo: `https://huggingface.co/PeytonT/bug-localization`
- Hugging Face collection: `https://huggingface.co/collections/PeytonT/research-library-6a49c589ef4d763f7539b50d`
- GitHub repository: `https://github.com/peytontolbert/research_library`
- Experiment config: `https://github.com/peytontolbert/research_library/blob/main/models/experiments/r4_bug_localization.json`
- Models directory: `https://github.com/peytontolbert/research_library/tree/main/models`

## Intended Use

- Primary use: Ranks likely bug locations inside repository content.
- Downstream use: retrieval, ranking, planning, paper understanding, or cross-domain reasoning inside the broader Repository Library system, depending on the model family.
- Out of scope: production safety claims, benchmark claims beyond the tracked experiment config, or deployment without task-specific validation.

## Training Data

The training inputs for this package were assembled from the following Repository Library data sources:

- Source `github_repos`: repository graph and code chunk data exported from the Repository Library repo pipeline.

## Training Procedure

- Sources: `github_repos`
- Input fields: `repo_context, failure_description`
- Target fields: `bug_location`
- Train/val/test split: `[0.9, 0.1, 0.0]`
- Max samples: `4000`
- Batch size: `8`
- Precision: `bf16`
- Objective: `cross_entropy`
- Learning rate: `5e-05`
- Max source tokens: `512`
- Max target tokens: `128`
- Fine-tune strategy: `full_finetune`
- Max steps: `1000`

## Compute

- Hardware: 4x RTX_3090 (24 GB)
- Distributed strategy: `ddp`
- Estimated GPU hours in config: `0`

## Evaluation

- Declared metrics: `accuracy, macro_f1`
- Status: this card reflects the current tracked experiment configuration and packaged weights in the Repository Library model stack.

## Usage

```python
from transformers import AutoModelForSequenceClassification, AutoTokenizer

repo_id = "PeytonT/bug-localization"

tokenizer = AutoTokenizer.from_pretrained(repo_id)
model = AutoModelForSequenceClassification.from_pretrained(repo_id)
```

## Limitations

- These cards are generated from tracked experiment metadata and packaged artifacts, not from a separate benchmark report or external audit.
- Several training sources are pipeline outputs from the Repository Library codebase rather than standalone public datasets.
- These models are components of a larger research system and should be validated in their target workflow before deployment.

## Project Context

- GitHub repository: `https://github.com/peytontolbert/research_library`
- Model collection: `https://huggingface.co/collections/PeytonT/research-library-6a49c589ef4d763f7539b50d`
- Publisher: `PeytonT`