This is a Cross Encoder model finetuned from answerdotai/ModernBERT-base 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: answerdotai/ModernBERT-base
Maximum Sequence Length: 8192 tokens
Number of Output Labels: 1 label

Language: en
License: apache-2.0

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("tomaarsen/reranker-ModernBERT-base-gooaq-bce-0margin-3min-100max-5top")
# Get scores for pairs of texts
pairs = [
    ['what is baking powder bicarbonate soda?', 'Baking soda and bicarbonate of soda are actually different names for the same thing. ... Both bicarbonate of soda and baking powder are leavening (raising) agents. When included in a batter, the leavening agent creates air bubbles that expand when cooked, and cause it to rise.'],
    ['what is baking powder bicarbonate soda?', "What is baking soda? Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies. Formally known as sodium bicarbonate, it's a white crystalline powder that is naturally alkaline, or basic (1). Baking soda becomes activated when it's combined with both an acidic ingredient and a liquid."],
    ['what is baking powder bicarbonate soda?', 'The chemical name for baking powder is sodium hydrogencarbonate. You may see it called bicarbonate of soda in the supermarket. This is the old name for the same stuff. It has the chemical formula NaHCO3.'],
    ['what is baking powder bicarbonate soda?', "Substituting baking soda for baking powder What's more, baking soda has much stronger leavening power than baking powder. As a rule of thumb, about 1 teaspoon of baking powder is equivalent to 1/4 teaspoon of baking soda."],
    ['what is baking powder bicarbonate soda?', "Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies. Formally known as sodium bicarbonate, it's a white crystalline powder that is naturally alkaline, or basic (1). Baking soda becomes activated when it's combined with both an acidic ingredient and a liquid."],
]
scores = model.predict(pairs)
print(scores.shape)
# (5,)

# Or rank different texts based on similarity to a single text
ranks = model.rank(
    'what is baking powder bicarbonate soda?',
    [
        'Baking soda and bicarbonate of soda are actually different names for the same thing. ... Both bicarbonate of soda and baking powder are leavening (raising) agents. When included in a batter, the leavening agent creates air bubbles that expand when cooked, and cause it to rise.',
        "What is baking soda? Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies. Formally known as sodium bicarbonate, it's a white crystalline powder that is naturally alkaline, or basic (1). Baking soda becomes activated when it's combined with both an acidic ingredient and a liquid.",
        'The chemical name for baking powder is sodium hydrogencarbonate. You may see it called bicarbonate of soda in the supermarket. This is the old name for the same stuff. It has the chemical formula NaHCO3.',
        "Substituting baking soda for baking powder What's more, baking soda has much stronger leavening power than baking powder. As a rule of thumb, about 1 teaspoon of baking powder is equivalent to 1/4 teaspoon of baking soda.",
        "Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies. Formally known as sodium bicarbonate, it's a white crystalline powder that is naturally alkaline, or basic (1). Baking soda becomes activated when it's combined with both an acidic ingredient and a liquid.",
    ]
)
# [{'corpus_id': ..., 'score': ...}, {'corpus_id': ..., 'score': ...}, ...]

Evaluation

Metrics

Cross Encoder Reranking

Dataset: gooaq-dev
Evaluated with CrossEncoderRerankingEvaluator with these parameters:
json
1{ 2 "at_k": 10, 3 "always_rerank_positives": false 4}

Metric	Value
map	0.7234 (+0.1923)
mrr@10	0.7223 (+0.1984)
ndcg@10	0.7676 (+0.1764)

Cross Encoder Reranking

Datasets: NanoMSMARCO_R100, NanoNFCorpus_R100 and NanoNQ_R100
Evaluated with CrossEncoderRerankingEvaluator with these parameters:
json
1{ 2 "at_k": 10, 3 "always_rerank_positives": true 4}

Metric	NanoMSMARCO_R100	NanoNFCorpus_R100	NanoNQ_R100
map	0.4711 (-0.0185)	0.3601 (+0.0992)	0.6047 (+0.1851)
mrr@10	0.4565 (-0.0210)	0.5969 (+0.0971)	0.6064 (+0.1797)
ndcg@10	0.5342 (-0.0062)	0.4250 (+0.0999)	0.6652 (+0.1646)

Cross Encoder Nano BEIR

Dataset: NanoBEIR_R100_mean
Evaluated with CrossEncoderNanoBEIREvaluator with these parameters:
json
1{ 2 "dataset_names": [ 3 "msmarco", 4 "nfcorpus", 5 "nq" 6 ], 7 "rerank_k": 100, 8 "at_k": 10, 9 "always_rerank_positives": true 10}

Metric	Value
map	0.4786 (+0.0886)
mrr@10	0.5533 (+0.0853)
ndcg@10	0.5415 (+0.0861)

Training Details

Training Dataset

Unnamed Dataset

Size: 577,957 training samples
Columns: question, answer, and label
Approximate statistics based on the first 1000 samples:
question answer label
type string string int
details
min: 21 characters
mean: 42.64 characters
max: 76 characters
min: 54 characters
mean: 250.97 characters
max: 376 characters
0: ~83.00%
1: ~17.00%

Samples:

question	answer	label
`what is baking powder bicarbonate soda?`	`Baking soda and bicarbonate of soda are actually different names for the same thing. ... Both bicarbonate of soda and baking powder are leavening (raising) agents. When included in a batter, the leavening agent creates air bubbles that expand when cooked, and cause it to rise.`	`1`
`what is baking powder bicarbonate soda?`	`What is baking soda? Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies. Formally known as sodium bicarbonate, it's a white crystalline powder that is naturally alkaline, or basic (1). Baking soda becomes activated when it's combined with both an acidic ingredient and a liquid.`	`0`
`what is baking powder bicarbonate soda?`	`The chemical name for baking powder is sodium hydrogencarbonate. You may see it called bicarbonate of soda in the supermarket. This is the old name for the same stuff. It has the chemical formula NaHCO3.`	`0`

Loss: BinaryCrossEntropyLoss with these parameters:
json
1{ 2 "activation_fct": "torch.nn.modules.linear.Identity", 3 "pos_weight": 5 4}

Training Hyperparameters

Non-Default Hyperparameters

eval_strategy: steps
per_device_train_batch_size: 64
per_device_eval_batch_size: 64
learning_rate: 2e-05
num_train_epochs: 1
warmup_ratio: 0.1
seed: 12
bf16: True
dataloader_num_workers: 4
load_best_model_at_end: True

All Hyperparameters

Click to expand

overwrite_output_dir: False
do_predict: False
eval_strategy: steps
prediction_loss_only: True
per_device_train_batch_size: 64
per_device_eval_batch_size: 64
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: 2e-05
weight_decay: 0.0
adam_beta1: 0.9
adam_beta2: 0.999
adam_epsilon: 1e-08
max_grad_norm: 1.0
num_train_epochs: 1
max_steps: -1
lr_scheduler_type: linear
lr_scheduler_kwargs: {}
warmup_ratio: 0.1
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: 12
data_seed: None
jit_mode_eval: False
use_ipex: False
bf16: True
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: 4
dataloader_prefetch_factor: None
past_index: -1
disable_tqdm: False
remove_unused_columns: True
label_names: None
load_best_model_at_end: True
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: None
hub_always_push: False
gradient_checkpointing: False
gradient_checkpointing_kwargs: None
include_inputs_for_metrics: False
include_for_metrics: []
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
use_liger_kernel: False
eval_use_gather_object: False
average_tokens_across_devices: False
prompts: None
batch_sampler: batch_sampler
multi_dataset_batch_sampler: proportional

Training Logs

Epoch	Step	Training Loss	gooaq-dev_ndcg@10	NanoMSMARCO_R100_ndcg@10	NanoNFCorpus_R100_ndcg@10	NanoNQ_R100_ndcg@10	NanoBEIR_R100_mean_ndcg@10
-1	-1	-	0.1293 (-0.4619)	0.0284 (-0.5121)	0.2145 (-0.1105)	0.0134 (-0.4872)	0.0854 (-0.3699)
0.0001	1	1.2576	-	-	-	-	-
0.0221	200	1.2027	-	-	-	-	-
0.0443	400	1.1352	-	-	-	-	-
0.0664	600	0.7686	-	-	-	-	-
0.0886	800	0.6163	-	-	-	-	-
0.1107	1000	0.5764	0.7162 (+0.1250)	0.4924 (-0.0480)	0.3647 (+0.0396)	0.6409 (+0.1403)	0.4993 (+0.0440)
0.1329	1200	0.5488	-	-	-	-	-
0.1550	1400	0.525	-	-	-	-	-
0.1772	1600	0.4987	-	-	-	-	-
0.1993	1800	0.4943	-	-	-	-	-
0.2215	2000	0.4777	0.7508 (+0.1596)	0.5672 (+0.0268)	0.3969 (+0.0718)	0.6236 (+0.1230)	0.5292 (+0.0739)
0.2436	2200	0.4487	-	-	-	-	-
0.2658	2400	0.4582	-	-	-	-	-
0.2879	2600	0.4473	-	-	-	-	-
0.3100	2800	0.4266	-	-	-	-	-
0.3322	3000	0.4374	0.7478 (+0.1565)	0.5851 (+0.0446)	0.3863 (+0.0613)	0.6684 (+0.1678)	0.5466 (+0.0912)
0.3543	3200	0.421	-	-	-	-	-
0.3765	3400	0.4317	-	-	-	-	-
0.3986	3600	0.4206	-	-	-	-	-
0.4208	3800	0.417	-	-	-	-	-
0.4429	4000	0.4113	0.7577 (+0.1665)	0.5611 (+0.0207)	0.3973 (+0.0722)	0.6564 (+0.1557)	0.5382 (+0.0829)
0.4651	4200	0.4008	-	-	-	-	-
0.4872	4400	0.3884	-	-	-	-	-
0.5094	4600	0.4136	-	-	-	-	-
0.5315	4800	0.389	-	-	-	-	-
0.5536	5000	0.3877	0.7609 (+0.1697)	0.5509 (+0.0104)	0.3878 (+0.0627)	0.6807 (+0.1800)	0.5398 (+0.0844)
0.5758	5200	0.3901	-	-	-	-	-
0.5979	5400	0.389	-	-	-	-	-
0.6201	5600	0.3999	-	-	-	-	-
0.6422	5800	0.3703	-	-	-	-	-
0.6644	6000	0.3854	0.7620 (+0.1708)	0.5444 (+0.0039)	0.4040 (+0.0790)	0.6917 (+0.1911)	0.5467 (+0.0913)
0.6865	6200	0.3685	-	-	-	-	-
0.7087	6400	0.3751	-	-	-	-	-
0.7308	6600	0.3709	-	-	-	-	-
0.7530	6800	0.3788	-	-	-	-	-
0.7751	7000	0.3734	0.7672 (+0.1760)	0.5404 (+0.0000)	0.4075 (+0.0824)	0.6638 (+0.1632)	0.5372 (+0.0819)
0.7973	7200	0.3629	-	-	-	-	-
0.8194	7400	0.3547	-	-	-	-	-
0.8415	7600	0.3639	-	-	-	-	-
0.8637	7800	0.3597	-	-	-	-	-
0.8858	8000	0.3522	0.7676 (+0.1764)	0.5342 (-0.0062)	0.4250 (+0.0999)	0.6652 (+0.1646)	0.5415 (+0.0861)
0.9080	8200	0.327	-	-	-	-	-
0.9301	8400	0.344	-	-	-	-	-
0.9523	8600	0.3578	-	-	-	-	-
0.9744	8800	0.3547	-	-	-	-	-
0.9966	9000	0.3491	0.7675 (+0.1763)	0.5423 (+0.0019)	0.4188 (+0.0937)	0.6621 (+0.1614)	0.5411 (+0.0857)
-1	-1	-	0.7676 (+0.1764)	0.5342 (-0.0062)	0.4250 (+0.0999)	0.6652 (+0.1646)	0.5415 (+0.0861)

The bold row denotes the saved checkpoint.

Framework Versions

Python: 3.11.10
Sentence Transformers: 3.5.0.dev0
Transformers: 4.49.0
PyTorch: 2.5.1+cu124
Accelerate: 1.2.0
Datasets: 2.21.0
Tokenizers: 0.21.0

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",
}

	question	answer	label
type	string	string	int
details	min: 21 characters mean: 42.64 characters max: 76 characters	min: 54 characters mean: 250.97 characters max: 376 characters	0: ~83.00% 1: ~17.00%