Model reference · open weights

affilgood-dense-retriever

Embeddings SIRIS-Lab Embeddings 1 build Licence not stated 2k dl/mo

affilgood-dense-retriever is an open-weight embedding model from SIRIS-Lab. affilgood-dense-retriever (FP32) weighs 1.1 GB; the smallest configuration that runs it is RTX 3060 12 GB.

For self-hosting, compare this build's requirements below with the GPU you plan to rent.

  • affilgood-dense-retriever is a sentence transformer model developed by SIRIS-Lab for sentence-similarity tasks.
  • It maps text to a 1024-dimensional vector space and is designed for semantic textual similarity, semantic search, and clustering.
  • The model has 560M parameters, a maximum sequence length of 128 tokens, and uses cosine similarity for comparisons.

Summary of the SIRIS-Lab/affilgood-dense-retriever model card, 2026-10-01

What it is

Released bySIRIS-Lab
Released2025-04-16
Parameters560M
VRAM1.1 GB for the weights

What it runs on

Memory and cards for affilgood-dense-retriever (FP32)

1.1 GBweights, file size
1.1 GBruntime overhead
CardRunsMemory
RTX 3060 12 GBfits11.6 GB
RTX 4060 Ti 16 GBfits15.4 GB
RTX 3090 24 GBfits23.4 GB
RTX 4090 24 GBfits23.4 GB
RTX 5090 32 GBfits31.0 GB
L40S 48 GBfits44.0 GB
A100 80 GBfits78.2 GB
H100 80 GBfits78.1 GB
RTX PRO 6000 Blackwell 96 GBfits93.8 GB
DGX Spark (GB10) 128 GB unifiedfits107 GB
H200 141 GBfits138 GB
B200 180 GBfits176 GB

From the model card

What SIRIS-Lab says about affilgood-dense-retriever

Read the model card

This is a sentence-transformers model trained. It maps sentences & paragraphs to a 1024-dimensional dense vector space and can be used for semantic textual similarity, semantic search, paraphrase mining, text classification, clustering, and more.

Model Details

Model Description

  • Model Type: Sentence Transformer

  • Maximum Sequence Length: 128 tokens

  • Output Dimensionality: 1024 dimensions

  • Similarity Function: Cosine Similarity

Model Sources

Full Model Architecture

SentenceTransformer(
  (0): Transformer({'max_seq_length': 128, 'do_lower_case': False}) with Transformer model: XLMRobertaModel
  (1): Pooling({'word_embedding_dimension': 1024, 'pooling_mode_cls_token': False, 'pooling_mode_mean_tokens': True, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False, 'pooling_mode_weightedmean_tokens': False, 'pooling_mode_lasttoken': False, 'include_prompt': True})
  (2): Normalize()
)

Usage

Direct Usage (Sentence Transformers)

First install the Sentence Transformers library:

pip install -U sentence-transformers

Then you can load this model and run inference.

from sentence_transformers import SentenceTransformer

# Download from the 🤗 Hub
model = SentenceTransformer("SIRIS-Lab/affilgood-dense-retriever")
# Run inference
sentences = [
    '[MENTION] Hyderabad Cleft Society [COUNTRY] India',
    '[MENTION] Hyderabad Cleft Society [ACRONYM] HCS [CITY] Hyderabad [COUNTRY] India',
    '[MENTION] Hyderabad Rheumatology Center [ACRONYM] HRC [CITY] Hyderabad [COUNTRY] India',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 1024]

# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities.shape)
# [3, 3]

Evaluation

Metrics

Semantic Similarity
MetricValue
pearson_cosine0.7073
spearman_cosine0.6826

Training Details

Training Dataset

Unnamed Dataset
  • Size: 47,610 training samples
  • Columns: sentence_0, sentence_1, and sentence_2
  • Approximate statistics based on the first 1000 samples:
    sentence_0sentence_1sentence_2
    typestringstringstring
    detailsmin: 5 tokensmean: 13.61 tokensmax: 32 tokensmin: 9 tokensmean: 18.63 tokensmax: 56 tokensmin: 10 tokensmean: 19.66 tokensmax: 58 tokens
  • Samples:
    sentence_0sentence_1sentence_2
    [MENTION] The Prince Of Wales'S Institute Of Architecture [CITY] London [COUNTRY] United Kingdom[MENTION] The Princes Foundation [CITY] London [COUNTRY] United Kingdom[MENTION] Royal Institute of British Architects [ACRONYM] RIBA [CITY] London [COUNTRY] United Kingdom
    [MENTION] Development Finance & Public Policies [COUNTRY] Belgium[MENTION] Development Finance and Public Policies [ACRONYM] DEFIPP [PARENT] University of Namur [CITY] Namur [COUNTRY] Belgium[MENTION] Service Public Federal Finances [ACRONYM] SPF [CITY] Brussels [COUNTRY] Belgium
    [MENTION] EES [COUNTRY] United States[MENTION] Emerald Education Systems [ACRONYM] EES [CITY] Pasadena [COUNTRY] United States[MENTION] ESI Group (United States) [ACRONYM] ESI [PARENT] ESI Group (France) [ACRONYM] ESI [CITY] Farmington Hills [COUNTRY] United States
  • Loss: MultipleNegativesRankingLoss with these parameters:
    {
        "scale": 20.0,
        "similarity_fct": "cos_sim"
    }
    

Training Hyperparameters

Non-Default Hyperparameters
  • `ev

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

Benchmarks

Reported results

As published on the model card: the maker's own numbers, not measured by AxForge.

TaskDatasetMetricScore
Semantic Similarityentity linking evalPearson Cosine0.707
Semantic Similarityentity linking evalSpearman Cosine0.683
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