This is a Cross Encoder model finetuned from BAAI/bge-reranker-v2-m3 using the sentence-transformers library. It computes scores for pairs of texts, which can be used for text reranking and semantic search.

Model Details

Model Description

Model Type: Cross Encoder
Base model: BAAI/bge-reranker-v2-m3
Maximum Sequence Length: 1024 tokens
Number of Output Labels: 1 label

Model Sources

Documentation: Sentence Transformers Documentation
Documentation: Cross Encoder Documentation
Repository: Sentence Transformers on GitHub
Hugging Face: Cross Encoders on Hugging Face

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.

python

from sentence_transformers import CrossEncoder

# Download from the 🤗 Hub
model = CrossEncoder("cross_encoder_model_id")
# Get scores for pairs of texts
pairs = [
    ['What was the 2011 Census population of this village and civil parish in Lincolnshire, where Regents Academy is based?', 'Manby. Manby is a village and civil parish in the East Lindsey district of Lincolnshire, England, and lies approximately 5 mi east from Louth.  The 2001 Census recorded a village population of 833, reducing to 759 at the 2011 Census.'],
    ['Piña colada and Aperol Spritz can both be described as what kind of drink?', '2-Acetylpyridine. 2-Acetylpyridine is an organic compound with the formula CH3COC5H4N.  It is a viscous colorless liquid that is widely used as a flavoring substance.  It is found in malt and produced by the Maillard reaction and by nixtamalization.  It contributes to the flavor of corn tortillas, popcorn, and beer.'],
    ['What song by a Barbadian singer was covered by Marié Christina Digby?', 'Umbrella (song). "Umbrella" is a song by Barbadian singer Rihanna from her third studio album "Good Girl Gone Bad" (2007).  It features American rapper Jay-Z, who co-wrote the song with its producers Tricky Stewart and Kuk Harrell, with additional writing from The-Dream.  The song was originally written with Britney Spears in mind, but her label rejected it.  "Umbrella" is a pop, hip hop and R&B song referring to a romantic and platonic relationship and the strength of that relationship.'],
    ["When was the  Roman politician and general died during who's reign Gaius Nasennius were soldiers?", "Narses. Narses (also sometimes written Nerses; Armenian: Նարսես ; Greek: Ναρσής ; 478–573) was, with Belisarius, one of the great generals in the service of the Byzantine Emperor Justinian I during the Roman reconquest that took place during Justinian's reign.  A Romanized Armenian, Narses spent most of his life as an important eunuch in the palace of the emperors in Constantinople."],
    ['California Tortilla was voted as having the best burritos in both 2009 and 2010 by a magazine founded in what year?', 'California Tortilla. California Tortilla, also known as CalTort, is a chain of franchised fast casual Mexican-style restaurants, the first of which was opened in August 1995 in Bethesda, Maryland by business partners Pam Felix and Alan Cohen.  The chain\'s menu, which features Mission burritos, is comparable to that of its competitors, such as Baja Fresh and Chipotle Mexican Grill.  A typical restaurant has 2500 sqft with seating for 75 people.  California Tortilla was voted by readers of "Washingtonian" magazine as having the best burritos in both 2009 and 2010, and "best Mexican" in 2014 and 2015.  The chain sold its 5 millionth burrito on August 22, 2007.'],
]
scores = model.predict(pairs)
print(scores.shape)
# (5,)

# Or rank different texts based on similarity to a single text
ranks = model.rank(
    'What was the 2011 Census population of this village and civil parish in Lincolnshire, where Regents Academy is based?',
    [
        'Manby. Manby is a village and civil parish in the East Lindsey district of Lincolnshire, England, and lies approximately 5 mi east from Louth.  The 2001 Census recorded a village population of 833, reducing to 759 at the 2011 Census.',
        '2-Acetylpyridine. 2-Acetylpyridine is an organic compound with the formula CH3COC5H4N.  It is a viscous colorless liquid that is widely used as a flavoring substance.  It is found in malt and produced by the Maillard reaction and by nixtamalization.  It contributes to the flavor of corn tortillas, popcorn, and beer.',
        'Umbrella (song). "Umbrella" is a song by Barbadian singer Rihanna from her third studio album "Good Girl Gone Bad" (2007).  It features American rapper Jay-Z, who co-wrote the song with its producers Tricky Stewart and Kuk Harrell, with additional writing from The-Dream.  The song was originally written with Britney Spears in mind, but her label rejected it.  "Umbrella" is a pop, hip hop and R&B song referring to a romantic and platonic relationship and the strength of that relationship.',
        "Narses. Narses (also sometimes written Nerses; Armenian: Նարսես ; Greek: Ναρσής ; 478–573) was, with Belisarius, one of the great generals in the service of the Byzantine Emperor Justinian I during the Roman reconquest that took place during Justinian's reign.  A Romanized Armenian, Narses spent most of his life as an important eunuch in the palace of the emperors in Constantinople.",
        'California Tortilla. California Tortilla, also known as CalTort, is a chain of franchised fast casual Mexican-style restaurants, the first of which was opened in August 1995 in Bethesda, Maryland by business partners Pam Felix and Alan Cohen.  The chain\'s menu, which features Mission burritos, is comparable to that of its competitors, such as Baja Fresh and Chipotle Mexican Grill.  A typical restaurant has 2500 sqft with seating for 75 people.  California Tortilla was voted by readers of "Washingtonian" magazine as having the best burritos in both 2009 and 2010, and "best Mexican" in 2014 and 2015.  The chain sold its 5 millionth burrito on August 22, 2007.',
    ]
)
# [{'corpus_id': ..., 'score': ...}, {'corpus_id': ..., 'score': ...}, ...]

Evaluation

Metrics

Cross Encoder Binary Classification

Datasets: validation and train_subset
Evaluated with CEBinaryClassificationEvaluator

Metric	validation	train_subset
accuracy	0.9367	0.908
accuracy_threshold	0.7832	0.9297
f1	0.9389	0.9132
f1_threshold	0.7832	0.8477
precision	0.9068	0.8897
recall	0.9733	0.938
average_precision	0.9587	0.9412

Training Details

Training Dataset

Unnamed Dataset

Size: 8,000 training samples
Columns: sentence_0, sentence_1, and label
Approximate statistics based on the first 1000 samples:
sentence_0 sentence_1 label
type string string float
details
min: 22 characters
mean: 100.09 characters
max: 498 characters
min: 85 characters
mean: 533.66 characters
max: 1965 characters
min: 0.0
mean: 0.51
max: 1.0

Samples:

sentence_0	sentence_1	label
`What was the 2011 Census population of this village and civil parish in Lincolnshire, where Regents Academy is based?`	`Manby. Manby is a village and civil parish in the East Lindsey district of Lincolnshire, England, and lies approximately 5 mi east from Louth. The 2001 Census recorded a village population of 833, reducing to 759 at the 2011 Census.`	`1.0`
`Piña colada and Aperol Spritz can both be described as what kind of drink?`	`2-Acetylpyridine. 2-Acetylpyridine is an organic compound with the formula CH3COC5H4N. It is a viscous colorless liquid that is widely used as a flavoring substance. It is found in malt and produced by the Maillard reaction and by nixtamalization. It contributes to the flavor of corn tortillas, popcorn, and beer.`	`0.0`
`What song by a Barbadian singer was covered by Marié Christina Digby?`	`Umbrella (song). "Umbrella" is a song by Barbadian singer Rihanna from her third studio album "Good Girl Gone Bad" (2007). It features American rapper Jay-Z, who co-wrote the song with its producers Tricky Stewart and Kuk Harrell, with additional writing from The-Dream. The song was originally written with Britney Spears in mind, but her label rejected it. "Umbrella" is a pop, hip hop and R&B song referring to a romantic and platonic relationship and the strength of that relationship.`	`1.0`

Loss: BinaryCrossEntropyLoss with these parameters:
json
1{ 2 "activation_fn": "torch.nn.modules.linear.Identity", 3 "pos_weight": null 4}

Training Hyperparameters

Non-Default Hyperparameters

eval_strategy: steps
per_device_train_batch_size: 2
per_device_eval_batch_size: 2

All Hyperparameters

Click to expand

overwrite_output_dir: False
do_predict: False
eval_strategy: steps
prediction_loss_only: True
per_device_train_batch_size: 2
per_device_eval_batch_size: 2
per_gpu_train_batch_size: None
per_gpu_eval_batch_size: None
gradient_accumulation_steps: 1
eval_accumulation_steps: None
torch_empty_cache_steps: None
learning_rate: 5e-05
weight_decay: 0.0
adam_beta1: 0.9
adam_beta2: 0.999
adam_epsilon: 1e-08
max_grad_norm: 1
num_train_epochs: 3
max_steps: -1
lr_scheduler_type: linear
lr_scheduler_kwargs: {}
warmup_ratio: 0.0
warmup_steps: 0
log_level: passive
log_level_replica: warning
log_on_each_node: True
logging_nan_inf_filter: True
save_safetensors: True
save_on_each_node: False
save_only_model: False
restore_callback_states_from_checkpoint: False
no_cuda: False
use_cpu: False
use_mps_device: False
seed: 42
data_seed: None
jit_mode_eval: False
use_ipex: False
bf16: False
fp16: False
fp16_opt_level: O1
half_precision_backend: auto
bf16_full_eval: False
fp16_full_eval: False
tf32: None
local_rank: 0
ddp_backend: None
tpu_num_cores: None
tpu_metrics_debug: False
debug: []
dataloader_drop_last: False
dataloader_num_workers: 0
dataloader_prefetch_factor: None
past_index: -1
disable_tqdm: False
remove_unused_columns: True
label_names: None
load_best_model_at_end: False
ignore_data_skip: False
fsdp: []
fsdp_min_num_params: 0
fsdp_config: {'min_num_params': 0, 'xla': False, 'xla_fsdp_v2': False, 'xla_fsdp_grad_ckpt': False}
fsdp_transformer_layer_cls_to_wrap: None
accelerator_config: {'split_batches': False, 'dispatch_batches': None, 'even_batches': True, 'use_seedable_sampler': True, 'non_blocking': False, 'gradient_accumulation_kwargs': None}
deepspeed: None
label_smoothing_factor: 0.0
optim: adamw_torch
optim_args: None
adafactor: False
group_by_length: False
length_column_name: length
ddp_find_unused_parameters: None
ddp_bucket_cap_mb: None
ddp_broadcast_buffers: False
dataloader_pin_memory: True
dataloader_persistent_workers: False
skip_memory_metrics: True
use_legacy_prediction_loop: False
push_to_hub: False
resume_from_checkpoint: None
hub_model_id: None
hub_strategy: every_save
hub_private_repo: False
hub_always_push: False
gradient_checkpointing: False
gradient_checkpointing_kwargs: None
include_inputs_for_metrics: False
eval_do_concat_batches: True
fp16_backend: auto
push_to_hub_model_id: None
push_to_hub_organization: None
mp_parameters:
auto_find_batch_size: False
full_determinism: False
torchdynamo: None
ray_scope: last
ddp_timeout: 1800
torch_compile: False
torch_compile_backend: None
torch_compile_mode: None
dispatch_batches: None
split_batches: None
include_tokens_per_second: False
include_num_input_tokens_seen: False
neftune_noise_alpha: None
optim_target_modules: None
batch_eval_metrics: False
eval_on_start: False
eval_use_gather_object: False
prompts: None
batch_sampler: batch_sampler
multi_dataset_batch_sampler: proportional
router_mapping: {}
learning_rate_mapping: {}

Training Logs

Epoch	Step	Training Loss	validation_average_precision	train_subset_average_precision
0.125	250	-	0.9311	0.9034
0.25	500	0.4545	0.9403	0.9061
0.375	750	-	0.9398	0.9220
0.5	1000	0.3954	0.9485	0.9292
0.625	1250	-	0.9500	0.9263
0.75	1500	0.3922	0.9519	0.9235
0.875	1750	-	0.9556	0.9224
1.0	2000	0.4131	0.9587	0.9412

Framework Versions

Python: 3.11.13
Sentence Transformers: 5.2.2
Transformers: 4.44.2
PyTorch: 2.10.0+cu128
Accelerate: 1.12.0
Datasets: 4.0.0
Tokenizers: 0.19.1

Citation

BibTeX

Sentence Transformers

bibtex

@inproceedings{reimers-2019-sentence-bert,
    title = "Sentence-BERT: Sentence Embeddings using Siamese BERT-Networks",
    author = "Reimers, Nils and Gurevych, Iryna",
    booktitle = "Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing",
    month = "11",
    year = "2019",
    publisher = "Association for Computational Linguistics",
    url = "https://arxiv.org/abs/1908.10084",
}

	sentence_0	sentence_1	label
type	string	string	float
details	min: 22 characters mean: 100.09 characters max: 498 characters	min: 85 characters mean: 533.66 characters max: 1965 characters	min: 0.0 mean: 0.51 max: 1.0

OloriBern/hotpotqa-hybrid-2000

CrossEncoder based on BAAI/bge-reranker-v2-m3