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README.md

@@ -1,42 +1,32 @@
 ---
 license: apache-2.0
-task_categories:
-- feature-extraction
-tags:
-- rag
-- retrieval
-- embeddings
-- rag-security
+task_categories: [feature-extraction]
+tags: [rag, retrieval, embeddings, rag-security, faiss]
 ---
 
-# TriShieldRAG — BeIR NQ corpus embeddings
+# TriShieldRAG — BeIR NQ embeddings and FAISS index
 
-Precomputed sentence embeddings for the full BeIR Natural Questions
-corpus, used in the evaluation of TriShieldRAG.
+Artifacts for *TriShieldRAG: A Three-Ring Defense-in-Depth Framework
+Against Knowledge Corruption in Retrieval-Augmented Generation*.
 
-| | |
-|---|---|
-| Corpus | BeIR/nq, `corpus` split |
-| Passages | 2,681,468 |
-| Model | sentence-transformers/all-mpnet-base-v2 |
-| Dimension | 768 |
-| Normalized | yes (unit L2, for inner-product search) |
-| Precision | float32 |
-| Format | 27 `.npy` chunks of 100k, ordered by filename |
+| File | Size | Description |
+|---|---|---|
+| `emb_*.npy` (27) | 7.7 GB | Embeddings, 100k passages per chunk, corpus order |
+| `nq_ivf_nlist6550.index` | 7.8 GB | FAISS IVF index, nlist=6550, inner product |
 
-## Loading
+- Corpus: BeIR/nq `corpus` split, 2,681,468 passages
+- Model: sentence-transformers/all-mpnet-base-v2, 768-d, L2-normalised
+
+## Load the index
 
 ```python
-import glob, numpy as np
-files = sorted(glob.glob('emb_*.npy'))
-vecs = np.vstack([np.load(f) for f in files])   # (2681468, 768)
+import faiss
+from huggingface_hub import hf_hub_download
+p = hf_hub_download("rpaut03l/trishieldrag-nq-mpnet-embeddings",
+                    "nq_ivf_nlist6550.index", repo_type="dataset")
+index = faiss.read_index(p)
+index.nprobe = 409
 ```
 
-Row order matches the BeIR NQ corpus order exactly.
-
-## Paper
-
-TriShieldRAG: A Three-Ring Defense-in-Depth Framework Against
-Knowledge Corruption in Retrieval-Augmented Generation
-- arXiv: https://arxiv.org/abs/2607.23838
-- Codde: https://github.com/rpaut03l/poisonedrag-ragshield-group6-iitj_TriShieldRAG
+Paper: https://arxiv.org/abs/2607.23838
+Code: https://github.com/rpaut03l/poisonedrag-ragshield-group6-iitj_TriShieldRAG