| ---
|
| language:
|
| - es
|
| license: mit
|
| datasets:
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| - hsilvosa/openplacsp
|
| library_name: sentence-transformers
|
| pipeline_tag: sentence-similarity
|
| tags:
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| - public-procurement
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| - semantic-search
|
| - cpv
|
| base_model: intfloat/multilingual-e5-small
|
| ---
|
|
|
| # Embeddings for Spanish public procurement
|
|
|
| A semantic encoder fine-tuned on historical versions of Spanish procurement notices and
|
| text-to-CPV-description pairs. It is intended for search, related-notice retrieval,
|
| version matching, and CPV division retrieval.
|
|
|
| It was trained from the
|
| [hsilvosa/openplacsp](https://huggingface.co/datasets/hsilvosa/openplacsp).
|
|
|
| ## Temporal evaluation on 2024
|
|
|
| | Task | Metric | Base | Fine-tuned |
|
| |---|---|---:|---:|
|
| | Retrieve another version | Recall@1 | 0.9984 | 0.9982 |
|
| | Retrieve another version | Recall@10 | 1.0000 | 0.9998 |
|
| | Retrieve a CPV division | Recall@1 | 0.1920 | 0.6846 |
|
| | Retrieve a CPV division | Recall@3 | 0.3672 | 0.8550 |
|
|
|
| Training only uses notices whose first publication date is no later than 2022. The years
|
| 2023 and 2024 are reserved for validation and testing. Training uses
|
| 150,000 version pairs and
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| 50,000 text-to-CPV pairs with seed
|
| 20260817. The source snapshot fingerprint is
|
| `fad46713c99abcaa500c7cef9323ae173f8f75c5aca02b299db2d4e96c3ca934` and the model checksum is `e89f3596034c54b46d3959d2c7a33e378c9d67019405c9b6d26e56f207ec01ed`.
|
|
|
| ## Usage
|
|
|
| ```python
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| from sentence_transformers import SentenceTransformer
|
|
|
| model = SentenceTransformer(".")
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| queries = model.encode(["query: mantenimiento de aplicaciones"], normalize_embeddings=True)
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| documents = model.encode(["passage: servicios de desarrollo de software"], normalize_embeddings=True)
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| similarity = model.similarity(queries, documents)
|
| ```
|
|
|
| ## Limitations
|
|
|
| The model reflects Spanish administrative language and data published through December
|
| 2024. Similarity does not imply legal identity, irregularity, or contractual equivalence.
|
| CPV descriptions are short and some divisions have relatively few examples.
|
|
|
