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Model description

LightGBM classifier of tree/non-tree pixels from aerial imagery trained on Zurich's Orthofoto Sommer 2014/15 using detectree.

Intended uses & limitations

Segment tree/non-tree pixels from aerial imagery

Training Procedure

[More Information Needed]

Hyperparameters

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Hyperparameter Value
boosting_type gbdt
class_weight
colsample_bytree 1.0
importance_type split
learning_rate 0.1
max_depth -1
min_child_samples 20
min_child_weight 0.001
min_split_gain 0.0
n_estimators 200
n_jobs
num_leaves 31
objective
random_state
reg_alpha 0.0
reg_lambda 0.0
subsample 1.0
subsample_for_bin 200000
subsample_freq 0

Model Plot

LGBMClassifier(n_estimators=200)
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Evaluation Results

Metrics calculated on a validation set of 1% of the test tiles

Metric Value
accuracy 0.87635
precision 0.785237
recall 0.756414
f1 0.770556

Dataset description

https://www.geolion.zh.ch/geodatensatz/2831

Preprocessing description

Images are resampled to 50 cm resolution. Train/test split based on image descriptors with 1% of tiles selected for training.

How to Get Started with the Model

[More Information Needed]

Model Card Authors

Martí Bosch

Model Card Contact

[email protected]

Citation

https://joss.theoj.org/papers/10.21105/joss.02172

Example predictions

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Example predictions

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