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The GatedTabTransformer.

A deep learning tabular classification architecture inspired by TabTransformer with integrated gated multilayer perceptron. Check out our paper on arXiv. Applications and usage demonstrations are available here.

Architecture

Usage

import torch
import torch.nn as nn
from gated_tab_transformer import GatedTabTransformer

model = GatedTabTransformer(
    categories = (10, 5, 6, 5, 8),      # tuple containing the number of unique values within each category
    num_continuous = 10,                # number of continuous values
    transformer_dim = 32,               # dimension, paper set at 32
    dim_out = 1,                        # binary prediction, but could be anything
    transformer_depth = 6,              # depth, paper recommended 6
    transformer_heads = 8,              # heads, paper recommends 8
    attn_dropout = 0.1,                 # post-attention dropout
    ff_dropout = 0.1,                   # feed forward dropout
    mlp_act = nn.LeakyReLU(0),          # activation for final mlp, defaults to relu, but could be anything else (selu, etc.)
    mlp_depth=4,                        # mlp hidden layers depth
    mlp_dimension=32,                   # dimension of mlp layers
    gmlp_enabled=True                   # gmlp or standard mlp
)

x_categ = torch.randint(0, 5, (1, 5))   # category values, from 0 - max number of categories, in the order as passed into the constructor above
x_cont = torch.randn(1, 10)             # assume continuous values are already normalized individually

pred = model(x_categ, x_cont)
print(pred)

Citation

@misc{cholakov2022gatedtabtransformer,
      title={The GatedTabTransformer. An enhanced deep learning architecture for tabular modeling}, 
      author={Radostin Cholakov and Todor Kolev},
      year={2022},
      eprint={2201.00199},
      archivePrefix={arXiv},
      primaryClass={cs.LG}
}