Tao Finetune Kumo Forecast

git clone --branch main --single-branch https://github.com/NVIDIA/Kumo-TS Kumo-TS
cd Kumo-TS/Kumo-Forecast
uv sync --group dev
uv pip install -e .          # editable install — required for clean sdk.* imports

# Standard inference (auto-downloads weights from HF on first run, no auth needed)
uv run python sdk/quick_example.py

import sys, pandas as pd
sys.path.append("/path/to/Kumo-TS/Kumo-Forecast")  # clone Kumo-TS with --branch main
from sdk.forecasting import ForecastingConfig, perform_forecasting

df = pd.read_csv("your_data.csv")   # must have timestamp + numeric target column

config = ForecastingConfig(
    timestamp_column="timestamp",    # parseable datetime column
    target_column="target",          # primary target to forecast
    seq_len=512,                     # input context length (rows consumed)
    forecast_horizon=72,             # steps ahead to predict (max 512)
    model_horizon=72,                # native model horizon; change when using custom weights
    standardizer_pkl="standardizer.pkl",   # auto-downloaded from HF if missing
    ckpt="run8_best_model_cr.pt",          # auto-downloaded; see Checkpoints table
)
results = perform_forecasting(df=df, config=config)
# Returns DataFrame: timestamp | {target_column}_forecast  (forecast_horizon rows)
print(results.head())

inference:
  # Number of historical rows consumed for the input context window.
  seq_len: 512
  # Number of future rows to predict.
  forecast_horizon: 72
  # Native horizon used when training the checkpoint.
  model_horizon: 72
  # Enable cross-channel attention for multivariate forecasting.
  use_cross_channel: true

results = perform_forecasting(df=df, config="sdk/forecasting_inference_config.yaml")

results = perform_forecasting(df=df, config=ForecastingConfig(use_cross_channel=False))

context_df = pd.read_csv("historical_data.csv")   # needs ≥ seq_len + model_horizon rows

config = ForecastingConfig(
    forecast_horizon=72,
    alpha=0.2,                  # 0.2 = 20% direct, 80% kNN (default: 0.01)
    k=64,                       # number of nearest neighbors
    temperature=0.05,           # kNN softmax temperature
)
results = perform_forecasting(df=df, config=config, context_df=context_df)

cd /path/to/Kumo-TS/Kumo-Forecast
# Without cross-channel (uses moment_head_512_6hr.pt)
uv run python examples/finetune_example.py \
  --csv /path/to/timeseries.csv \
  --timestamp-col timestamp \
  --target-cols target \
  --seq-len 512 --forecast-horizon 72 \
  --epochs 5 --batch-size 8 --lr 1e-4 \
  --output-dir artifacts/finetune_my_data

# With cross-channel layer (uses run8_best_model_cr.pt)
uv run python examples/finetune_example.py \
  --csv /path/to/timeseries.csv \
  --timestamp-col timestamp \
  --target-cols sensor_1,sensor_2,sensor_3 \
  --use-cross-channel --cross-channel-heads 8 \
  --epochs 5 \
  --output-dir artifacts/finetune_cross_channel

config = ForecastingConfig(
    timestamp_column="timestamp",
    target_column="target",
    seq_len=512,
    forecast_horizon=72,
    model_horizon=72,
    standardizer_pkl="artifacts/finetune_my_data/standardizer.pkl",
    ckpt="artifacts/finetune_my_data/best_model.pt",
    use_cross_channel=False,   # set True if trained with --use-cross-channel
)
results = perform_forecasting(df=df, config=config)

DataFrame: timestamp | {target_column}_forecast   (forecast_horizon rows)

artifacts/finetune_my_data/
├── best_model.pt            # checkpoint with lowest validation MSE
├── standardizer.pkl         # normalization statistics for this dataset
├── finetune_metadata.json   # model config, channels, best epoch, all args
├── metrics.json             # scalar summary: {"val_mse": float, "val_mae": float} — consumed by AutoML runner
└── epoch_metrics.json       # per-epoch list: [{epoch, train_mse, val_mse, val_mae}, ...]