Update README.md

README.md

@@ -1,36 +1,43 @@
----
-license: cc-by-nc-4.0
-tags:
-- vector-search
-- multi-vector-search
-- nearest-neighbors
-- high-dimensional-data
-- political-science
-pretty_name: Multi-Vector Search Datasets
-size_categories:
-- 1M<n<10M
-language:
-- en
----
-
 ## Multi-Vector Search Datasets
 
-The datasets listed below are used in the [Multi-Vector HNSW](https://github.com/habedi/multi-vector-hnsw) project.
+The datasets listed below are used in the [Multi-Vector HNSW](https://github.com/habedi/multi-vector-hnsw) project for benchmarking multi-vector approximate nearest neighbor search.
+
+---
 
 ### Stack Exchange Datasets
 
-These datasets are from [habedi/stack-exchange-dataset](https://huggingface.co/datasets/habedi/stack-exchange-dataset).
+Source: [habedi/stack-exchange-dataset](https://huggingface.co/datasets/habedi/stack-exchange-dataset)
+
+Each row contains:
+- `id`: unique post ID
+- `title`: the post title (text)
+- `body`: the main body content (with HTML tags removed)
+- `tags`: associated tags (text)
+- `embedding`: list of three 768-dimensional vectors for `[title, body, tags]`
 
-| Index | Dataset                            | Dimensions | Size |
-| ----- | ---------------------------------- | ---------: | ---------: |
-| 1     | Computer Science  |        768 |  40,792 |
-| 2     | Data Science      |        768 |  28,950 |
-| 3     | Political Science |        768 |    12,416 |
+Text embeddings generated using `all-mpnet-base-v2` from Sentence Transformers (`sentence-transformers/all-mpnet-base-v2`)
+
+| Index | Dataset             | Size    |
+|-------|---------------------|--------:|
+| 1     | Computer Science    | 40,792  |
+| 2     | Data Science        | 28,950  |
+| 3     | Political Science   | 12,416  |
+
+---
 
 ### Flickr8k Dataset
 
-This dataset is from [habedi/flickr-8k-dataset-clean](https://www.kaggle.com/datasets/habedi/flickr-8k-dataset-clean).
+Source: [habedi/flickr-8k-dataset-clean](https://www.kaggle.com/datasets/habedi/flickr-8k-dataset-clean)
+
+Each row contains:
+- `id`: image filename
+- `captions`: list of 5 human-written captions
+- `image`: raw image (in JPEG format)
+- `embedding`: list of six 768-dimensional vectors: 5 for captions, 1 for image
+
+Caption embeddings were generated using the `sentence-transformers/all-mpnet-base-v2` model. 
+Image embeddings were created using the `openai/clip-vit-base-patch32` model via the HuggingFace Transformers library.
 
-| Index | Dataset                            | Dimensions | Size |
-| ----- | ---------------------------------- | ---------: | ---------: |
-| 1     | Flickr 8K (captions + image)  |        768 |  8,091 |
+| Index | Dataset                  | Size   |
+|-------|--------------------------|-------:|
+| 1     | Flickr 8K (captions + image) | 8,091  |