README.md

---
tags:
- sentence-transformers
- sentence-similarity
- feature-extraction
- generated_from_trainer
- dataset_size:21123868
- loss:CachedMultipleNegativesRankingLoss
base_model: sentence-transformers/paraphrase-multilingual-mpnet-base-v2
widget:
- source_sentence: 系统管理员技术员——TS/SCI级别并拥有多项式验证
  sentences:
  - >-
    support development of annual budget, create a financial report, report
    analysis results, Microsoft Access, accounting, use presentation software,
    interpret financial statements, synthesise financial information, develop
    vaccines, handle financial overviews of the store, produce statistical
    financial records, develop financial statistics reports, explain accounting
    records, financial analysis, SAP R3, represent the company, examine budgets,
    prepare presentation material, use spreadsheets software, forecast account
    metrics, meet deadlines, prepare financial projections, manage budgets,
    exercise self-control, financial statements
  - >-
    ensure cross-department cooperation, establish customer rapport, improve
    business processes, manage technical security systems, handle incidents,
    maintain ICT system, explain characteristics of computer peripheral
    equipment, gather technical information, collaborate in company's daily
    operations , apply change management, maintain technical equipment,
    communicate with customers, solve technical problems, perform ICT
    troubleshooting, use ICT equipment in maintenance activities, manage major
    incidents, build business relationships, computer engineering, perform
    software recovery testing, identify process improvements, maintain
    relationship with customers, carry out project activities, collaborate in
    the development of marketing strategies, computer technology, technical
    terminology
  - >-
    utilise machine learning, cloud technologies, develop predictive models,
    assess sportive performance, formulate findings , principles of artificial
    intelligence, perform business research, communicate with stakeholders,
    computer engineering, build predictive models, computer science, develop
    automated software tests, analyse business objectives, Agile development,
    cloud monitoring and reporting, provide written content, obtain relevant
    licenses, design prototypes, machine learning, e-learning software
    infrastructure, analyse education system, disseminate results to the
    scientific community, learning technologies, ML (computer programming), task
    algorithmisation
- source_sentence: 安全运营官
  sentences:
  - >-
    deliver outstanding service, manage carriers, direct customers to
    merchandise, improve customer interaction, manage time, support managers,
    assist customers, process customer orders, manage customer service, satisfy
    customers, guarantee customer satisfaction, respond to customers' inquiries
  - >-
    manage several projects, implement operational business plans, identify
    improvement actions, develop strategy to solve problems, manage website,
    carry out project activities, follow reporting procedures, supervise site
    maintenance, adjust priorities, schedule shifts, conduct public
    presentations, motivate others, manage operational budgets, report to the
    team leader, encourage teams for continuous improvement, lead the
    sustainability reporting process, implement sustainable procurement, show an
    exemplary leading role in an organisation, manage manufacturing facilities,
    develop training programmes, develop production line, supply chain
    management, leadership principles, lead a team, coaching techniques
  - >-
    provide emergency supplies, provide first aid, liaise with security
    authorities, apply medical first aid in case of emergency, regulate traffic,
    train security officers, maintain physical fitness, provide protective
    escort, ensure public safety and security, ensure inspections of facilities,
    work in inclement conditions, follow procedures in the event of an alarm,
    set safety and security standards, comply with the principles of
    self-defence, present reports, maintain facility security systems, conduct
    security screenings, types of evaluation , monitor security measures, office
    equipment, escort pedestrians across streets, advise on security staff
    selection, wear appropriate protective gear, work in outdoor conditions,
    assist emergency services
- source_sentence: Empleado de control de COVID
  sentences:
  - >-
    maintain records of clients' prescriptions, assist people in contaminated
    areas, label samples, maintain museum records, apply social distancing
    protocols, collect biological samples from patients, infection control,
    label medical laboratory samples, disinfect surfaces, maintain customer
    records, ensure health and safety of staff, personal protective equipment,
    remove contaminated materials, store contaminated materials, prepare
    prescription labels, use personal protection equipment
  - >-
    promote organisational communication, provide legal advice, human resource
    management, company policies, perform customer management, business
    processes, ensure compliance with legal requirements, develop communications
    strategies, enforce company values, develop outreach training plans, use
    consulting techniques, develop employment policies, human resources
    department processes, personnel management, identify training needs,
    participate in health personnel training, health and safety in the
    workplace, lead police investigations, ensure compliance with policies,
    prepare compliance documents, perform internal investigations, develop
    employee retention programs, develop corporate training programmes, customer
    relationship management, manage localisation
  - >-
    perform escalation procedure, imprint visionary aspirations into the
    business management, observe confidentiality, impart business plans to
    collaborators, lead a team, human resources department processes, respect
    confidentiality obligations, hire human resources, manage commercial risks,
    develop business plans, communicate with stakeholders, maintain relationship
    with customers, manage several projects, provide improvement strategies,
    manage technical security systems, knowledge management, risk management,
    develop program ideas, perform project management, project management, cope
    with uncertainty, address identified risks, provide performance feedback,
    information confidentiality, track key performance indicators
- source_sentence: Aerie - Brand Ambassador (Sales Associate) - US
  sentences:
  - >-
    lay bricks, provide first aid, enforce park rules, conflict management, give
    swimming lessons, assist in performing physical exercises, perform park
    safety inspections, assist in the movement of heavy loads, lead a team,
    first aid, supervise pool activities, swim, coach staff for running the
    performance, show an exemplary leading role in an organisation, teach public
    speaking principles, collaborate with coaching team, supervise work,
    calculate stairs rise and run, calculate compensation payments, manage a
    team, information confidentiality
  - >-
    react to events in time-critical environments, operate in a specific field
    of nursing care, clinical science, promote healthy fitness environment, lead
    others, comply with legislation related to health care, maintain a safe,
    hygienic and secure working environment, provide healthcare services to
    patients in specialised medicine, write English, conduct physical
    examinations, leadership principles, use clinical assessment techniques,
    apply context specific clinical competences, conduct health related
    research, conceptualise healthcare user’s needs, assessment processes,
    communicate in healthcare, provide professional care in nursing, nursing
    science, promote health and safety, implement policy in healthcare
    practices, engage with stakeholders, identify problems, respond to changing
    situations in health care, perform resource planning
  - >-
    ensure the privacy of guests, provide customised products, company policies,
    exude enthusiasm during the action sessions, provide customer guidance on
    product selection, collect briefing regarding products, perform multiple
    tasks at the same time, create solutions to problems, respond to visitor
    complaints
- source_sentence: 医师——危重症护理——重症监护专家——项目医务总监
  sentences:
  - >-
    handle incidents, provide technical documentation, coordinate operational
    activities, ensure information security, work in teams, manage manufacturing
    documentation, project configuration management, operate call distribution
    system, maintain computer hardware, apply change management, manage aircraft
    support systems, perform escalation procedure, manage production
    changeovers, maintenance operations, call-centre technologies, manage
    service contracts in the drilling industry, encourage teambuilding, manage
    major incidents, resolve equipment malfunctions, work independently, think
    analytically, manage maintenance operations, maintain plan for continuity of
    operations
  - >-
    develop recycling programs, receive actors' resumes, work in cold
    environments, perform cleaning duties, operate floor cleaning equipment,
    operate forklift
  - >-
    perform technical tasks with great care, supervise medical residents, manage
    a multidisciplinary team involved in patient care, administrative tasks in a
    medical environment, demonstrate technical skills during neurological
    surgery, apply problem solving in social service, intensive care medicine,
    provide comprehensive care for patients with surgical conditions, work in
    teams, solve problems
pipeline_tag: sentence-similarity
library_name: sentence-transformers
co2_eq_emissions:
  emissions: 717.3535184611766
  energy_consumed: 1.9440474755045436
  source: codecarbon
  training_type: fine-tuning
  on_cloud: true
  cpu_model: Intel(R) Xeon(R) CPU @ 2.20GHz
  ram_total_size: 83.47684860229492
  hours_used: 5.34
  hardware_used: 1 x NVIDIA A100-SXM4-40GB
license: mit
language:
- en
- es
- de
- zh
- mul
- multilingual
---

# SentenceTransformer based on sentence-transformers/paraphrase-multilingual-mpnet-base-v2

This is a [sentence-transformers](https://www.SBERT.net) model specifically trained for job title matching and similarity. It's finetuned from [sentence-transformers/paraphrase-multilingual-mpnet-base-v2](https://huggingface.co/sentence-transformers/paraphrase-multilingual-mpnet-base-v2) on a large dataset of job titles and their associated skills/requirements across multiple languages. The model maps English, Spanish, German and Chinese job titles and descriptions to a 1024-dimensional dense vector space and can be used for semantic job title matching, job similarity search, and related HR/recruitment tasks.

## Model Details

### Model Description
- **Model Type:** Sentence Transformer
- **Base model:** [sentence-transformers/paraphrase-multilingual-mpnet-base-v2](https://huggingface.co/sentence-transformers/paraphrase-multilingual-mpnet-base-v2) <!-- at revision 84fccfe766bcfd679e39efefe4ebf45af190ad2d -->
- **Maximum Sequence Length:** 64 tokens
- **Output Dimensionality:** 1024 dimensions
- **Similarity Function:** Cosine Similarity
- **Training Dataset:** 4 x 5.2M high-quality job title - skills pairs in English, Spanish, German and Chinese

### Model Sources

- **Documentation:** [Sentence Transformers Documentation](https://sbert.net)
- **Repository:** [Sentence Transformers on GitHub](https://github.com/UKPLab/sentence-transformers)
- **Hugging Face:** [Sentence Transformers on Hugging Face](https://huggingface.co/models?library=sentence-transformers)

### Full Model Architecture

```
SentenceTransformer(
  (0): Transformer({'max_seq_length': 64, 'do_lower_case': False}) with Transformer model: XLMRobertaModel 
  (1): Pooling({'word_embedding_dimension': 768, '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): Asym(
    (anchor-0): Dense({'in_features': 768, 'out_features': 1024, 'bias': True, 'activation_function': 'torch.nn.modules.activation.Tanh'})
    (positive-0): Dense({'in_features': 768, 'out_features': 1024, 'bias': True, 'activation_function': 'torch.nn.modules.activation.Tanh'})
  )
)
```

## Usage

### Direct Usage (Sentence Transformers)

First install the Sentence Transformers library:

```bash
pip install -U sentence-transformers
```

Then you can load and use the model with the following code:
```python
import torch
import numpy as np
from tqdm.auto import tqdm
from sentence_transformers import SentenceTransformer
from sentence_transformers.util import batch_to_device, cos_sim

# Load the model
model = SentenceTransformer("TechWolf/JobBERT-v3")

def encode_batch(jobbert_model, texts):
    features = jobbert_model.tokenize(texts)
    features = batch_to_device(features, jobbert_model.device)
    features["text_keys"] = ["anchor"]
    with torch.no_grad():
        out_features = jobbert_model.forward(features)
    return out_features["sentence_embedding"].cpu().numpy()

def encode(jobbert_model, texts, batch_size: int = 8):
    # Sort texts by length and keep track of original indices
    sorted_indices = np.argsort([len(text) for text in texts])
    sorted_texts = [texts[i] for i in sorted_indices]
    
    embeddings = []
    
    # Encode in batches
    for i in tqdm(range(0, len(sorted_texts), batch_size)):
        batch = sorted_texts[i:i+batch_size]
        embeddings.append(encode_batch(jobbert_model, batch))
    
    # Concatenate embeddings and reorder to original indices
    sorted_embeddings = np.concatenate(embeddings)
    original_order = np.argsort(sorted_indices)
    return sorted_embeddings[original_order]

# Example usage
job_titles = [
    'Software Engineer',
    '高级软件开发人员',  # senior software developer
    'Produktmanager',  # product manager
    'Científica de datos'  # data scientist
]

# Get embeddings
embeddings = encode(model, job_titles)

# Calculate cosine similarity matrix
similarities = cos_sim(embeddings, embeddings)
print(similarities)
```

The output will be a similarity matrix where each value represents the cosine similarity between two job titles:

```
tensor([[1.0000, 0.8087, 0.4673, 0.5669],
        [0.8087, 1.0000, 0.4428, 0.4968],
        [0.4673, 0.4428, 1.0000, 0.4292],
        [0.5669, 0.4968, 0.4292, 1.0000]])
```


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## Training Details

### Training Dataset

#### Unnamed Dataset

* Size: 21,123,868 training samples
* Columns: <code>anchor</code> and <code>positive</code>
* Approximate statistics based on the first 1000 samples:
  |         | anchor                                                                            | positive                                                                           |
  |:--------|:----------------------------------------------------------------------------------|:-----------------------------------------------------------------------------------|
  | type    | string                                                                            | string                                                                             |
  | details | <ul><li>min: 4 tokens</li><li>mean: 10.56 tokens</li><li>max: 38 tokens</li></ul> | <ul><li>min: 19 tokens</li><li>mean: 61.08 tokens</li><li>max: 64 tokens</li></ul> |
* Samples:
  | anchor                                         | positive                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
  |:-----------------------------------------------|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
  | <code>通信与培训专员</code>                           | <code>deliver online training, liaise with educational support staff, interact with an audience, construct individual learning plans, lead a team, develop corporate training programmes, learning technologies, communication, identify with the company's goals, address an audience, learning management systems, use presentation software, motivate others, provide learning support, engage with stakeholders, identify skills gaps, meet expectations of target audience, develop training programmes</code>                                                                                                                                         |
  | <code>Associate Infrastructure Engineer</code> | <code>create solutions to problems, design user interface, cloud technologies, use databases, automate cloud tasks, keep up-to-date to computer trends, work in teams, use object-oriented programming, keep updated on innovations in various business fields, design principles, Angular, adapt to changing situations, JavaScript, Agile development, manage stable, Swift (computer programming), keep up-to-date to design industry trends, monitor technology trends, web programming, provide mentorship, advise on efficiency improvements, adapt to change, JavaScript Framework, database management systems, stimulate creative processes</code> |
  | <code>客户顾问/出纳</code>                           | <code>customer service, handle financial transactions, adapt to changing situations, have computer literacy, manage cash desk, attend to detail, provide customer guidance on product selection, perform multiple tasks at the same time, carry out financial transactions, provide membership service, manage accounts, adapt to change, identify customer's needs, solve problems</code>                                                                                                                                                                                                                                                                  |
* Loss: [<code>CachedMultipleNegativesRankingLoss</code>](https://sbert.net/docs/package_reference/sentence_transformer/losses.html#cachedmultiplenegativesrankingloss) with these parameters:
  ```json
  {
      "scale": 20.0,
      "similarity_fct": "cos_sim",
      "mini_batch_size": 512
  }
  ```

### Training Hyperparameters
#### Non-Default Hyperparameters

- `overwrite_output_dir`: True
- `per_device_train_batch_size`: 2048
- `per_device_eval_batch_size`: 2048
- `num_train_epochs`: 1
- `fp16`: True

#### All Hyperparameters
<details><summary>Click to expand</summary>

- `overwrite_output_dir`: True
- `do_predict`: False
- `eval_strategy`: no
- `prediction_loss_only`: True
- `per_device_train_batch_size`: 2048
- `per_device_eval_batch_size`: 2048
- `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`: 1.0
- `num_train_epochs`: 1
- `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`: True
- `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`: 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

</details>

### Training Logs
| Epoch  | Step  | Training Loss |
|:------:|:-----:|:-------------:|
| 0.0485 | 500   | 3.89          |
| 0.0969 | 1000  | 3.373         |
| 0.1454 | 1500  | 3.1715        |
| 0.1939 | 2000  | 3.0414        |
| 0.2424 | 2500  | 2.9462        |
| 0.2908 | 3000  | 2.8691        |
| 0.3393 | 3500  | 2.8048        |
| 0.3878 | 4000  | 2.7501        |
| 0.4363 | 4500  | 2.7026        |
| 0.4847 | 5000  | 2.6601        |
| 0.5332 | 5500  | 2.6247        |
| 0.5817 | 6000  | 2.5951        |
| 0.6302 | 6500  | 2.5692        |
| 0.6786 | 7000  | 2.5447        |
| 0.7271 | 7500  | 2.5221        |
| 0.7756 | 8000  | 2.5026        |
| 0.8240 | 8500  | 2.4912        |
| 0.8725 | 9000  | 2.4732        |
| 0.9210 | 9500  | 2.4608        |
| 0.9695 | 10000 | 2.4548        |


### Environmental Impact
Carbon emissions were measured using [CodeCarbon](https://github.com/mlco2/codecarbon).
- **Energy Consumed**: 1.944 kWh
- **Carbon Emitted**: 0.717 kg of CO2
- **Hours Used**: 5.34 hours

### Training Hardware
- **On Cloud**: Yes
- **GPU Model**: 1 x NVIDIA A100-SXM4-40GB
- **CPU Model**: Intel(R) Xeon(R) CPU @ 2.20GHz
- **RAM Size**: 83.48 GB

### Framework Versions
- Python: 3.10.16
- Sentence Transformers: 4.1.0
- Transformers: 4.48.3
- PyTorch: 2.6.0+cu126
- Accelerate: 1.3.0
- Datasets: 3.5.1
- 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",
}
```

#### CachedMultipleNegativesRankingLoss
```bibtex
@misc{gao2021scaling,
    title={Scaling Deep Contrastive Learning Batch Size under Memory Limited Setup},
    author={Luyu Gao and Yunyi Zhang and Jiawei Han and Jamie Callan},
    year={2021},
    eprint={2101.06983},
    archivePrefix={arXiv},
    primaryClass={cs.LG}
}
```

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