seispolarity 0.1.1

Framework for seismic waveform polarity picking with unified APIs

SeisPolarity

A comprehensive framework for seismic first-motion polarity picking with unified APIs.

Documentation

Full documentation is available at: https://seispolarity.readthedocs.io/

Build documentation locally:

cd docs
make html

Installation

From Source

git clone https://github.com/Chuan1937/SeisPolarity.git
cd SeisPolarity
pip install -e .

Features

• Unified Data Interface: Support for SCSN, Txed, DiTing, Instance, PNW datasets with automatic download
• Multiple Models: Ross, Eqpolarity, APP, DiTingMotion, CFM, RPNet, PolarCAP with pre-trained weights
• Flexible Data Loading: RAM/Disk streaming for datasets of any size
• High-level Inference: Predictor class with auto-download from Hugging Face/ModelScope
• Data Augmentation: Comprehensive augmentation pipeline with balanced sampling
• Unified Training: Trainer with checkpointing, early stopping, and logging
• Cross-platform Support: Works on Linux, macOS, and Windows

Quick Start

Inference

from seispolarity.inference import Predictor
import numpy as np

predictor = Predictor("ross")  # Options: "ross", "eqpolarity", "diting_motion"
waveforms = np.random.randn(10, 400)  # (Batch, Length)
predictions = predictor.predict(waveforms)
# Returns: [0, 1, 2, ...]  (0: Up, 1: Down, 2: Unknown)

Dataset Loading

from seispolarity.data import WaveformDataset

# Disk streaming for large datasets
dataset = WaveformDataset(path="data.hdf5", name="SCSN", preload=False)
loader = dataset.get_dataloader(batch_size=1024, num_workers=4)

# RAM preloading for faster access
dataset_ram = WaveformDataset(path="data.hdf5", name="SCSN", preload=True)

Automatic Dataset Download

from seispolarity.data import PNW
from pathlib import Path

output_dir = Path('datasets/PNW')
processor = PNW(
    csv_path=str(output_dir / 'PNW.csv'),
    hdf5_path=str(output_dir / 'PNW.hdf5'),
    output_polarity=str(output_dir),
    auto_download=True,  # Auto-download missing data
    use_hf=False,         # Use ModelScope instead of Hugging Face
    component='Z',        # Extract vertical component
    sampling_rate=100     # Target sampling rate in Hz
)
processor.process()

Training

from seispolarity.models.scsn import SCSN
from seispolarity.training import Trainer, TrainingConfig

model = SCSN(num_fm_classes=3)
config = TrainingConfig(
    batch_size=256,
    epochs=50,
    learning_rate=1e-4,
    device='cuda'  # or 'cpu'
)
trainer = Trainer(model=model, dataset=dataset, config=config)
trainer.train()

Data Augmentation

from seispolarity.generate import GenericGenerator
from seispolarity.generate.augmentation import (
    Demean, Normalize, RandomTimeShift, 
    BandpassFilter, PolarityInversion
)

generator = GenericGenerator(dataset)
generator.add_augmentations([
    Demean(),
    Normalize(amp_norm_type="peak"),
    RandomTimeShift(max_shift=10),
    BandpassFilter(freqmin=1, freqmax=20),
    PolarityInversion(prob=0.5)
])
loader = generator.get_dataloader(batch_size=256)

Supported Datasets

Dataset	Description	Samples	Auto-download
SCSN	Southern California Seismic Network	100k+	Yes
Txed	Texas Earthquake Data	50k+	Yes
DiTing	Chinese seismic network	80k+	Yes
Instance	Instance-based dataset	30k+	Yes
PNW	Pacific Northwest	20k+	Yes

Supported Models

Model	Input Length	Classes
Ross (SCSN)	400	3 (U/D/N)
Eqpolarity	600	2 (U/D)
DiTingMotion	128	3 (U/D/N)
CFM	160	2 (U/D)
RPNet	400	2 (U/D)
PolarCAP	64	2 (U/D)
APP	400	3 (U/D/N)

Project Structure

SeisPolarity/
├── seispolarity/
│   ├── models/           # Neural network architectures
│   │   ├── base.py       # Base model class
│   │   ├── scsn.py       # SCSN/Ross models
│   │   ├── eqpolarity.py # Eqpolarity model
│   │   ├── diting_motion.py
│   │   ├── app.py
│   │   ├── cfm.py
│   │   ├── rpnet.py
│   │   └── polarCAP.py
│   ├── data/             # Dataset implementations
│   │   ├── base.py       # WaveformDataset base class
│   │   ├── pnw.py
│   │   ├── txed.py
│   │   ├── diting.py
│   │   ├── instance.py
│   │   └── download.py   # Download utilities
│   ├── training/         # Training utilities
│   │   └── trainer.py    # Trainer and TrainingConfig
│   ├── generate/         # Data augmentation
│   │   ├── generator.py  # Generator classes
│   │   └── augmentation.py # Augmentation operations
│   ├── inference.py      # Predictor class
│   ├── config.py         # Configuration management
│   └── annotations.py    # Data structures
├── examples/             # Example notebooks and scripts
├── tests/                # Unit tests
├── docs/                 # Documentation
└── pyproject.toml        # Project configuration

Advanced Usage

Multi-dataset Training

from seispolarity.data import MultiWaveformDataset

datasets = {
    'SCSN': 'datasets/scsn.hdf5',
    'Txed': 'datasets/txed.hdf5'
}
multi_dataset = MultiWaveformDataset(datasets)

Custom Augmentation

from seispolarity.generate.augmentation import AugmentationBase

class CustomAugmentation(AugmentationBase):
    def __call__(self, waveform, metadata):
        # Your custom augmentation logic
        return waveform, metadata

Model Zoo

Pre-trained models are automatically downloaded from:

• Hugging Face: https://huggingface.co/chuanjun1978/SeisPolarity-Model
• ModelScope: https://modelscope.cn/models/chuanjun1978/SeisPolarity-Model

Examples

See the examples/ directory for complete notebooks:

• Dataset API Usage - PNW dataset example
• More examples coming soon...

Contributing

We welcome contributions! Please see our Contributing Guide for details.

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Submit a pull request

Citation

Paper will come soon...

License

This project is licensed under the BSD 3-Clause License - see the LICENSE file for details.

Acknowledgments

• SeisBench framework for inspiration
• Hugging Face and ModelScope for model hosting
• All dataset providers

Links

• GitHub: https://github.com/Chuan1937/SeisPolarity
• Hugging Face: https://huggingface.co/chuanjun1978/SeisPolarity-Model
• ModelScope: https://modelscope.cn/models/chuanjun1978/SeisPolarity-Model
• Documentation: https://seispolarity.readthedocs.io/

Contact

For questions and support, please open an issue on GitHub or contact: [[e-mail]]