Improving Compound Activity Classification via Deep Transfer and Representation Learning

Overview

Improving Compound Activity Classification via Deep Transfer and Representation Learning

This repository is the official implementation of Improving Compound Activity Classification via Deep Transfer and Representation Learning.

Requirements

Operating systems: Red Hat Enterprise Linux Server 7.9

To install requirements:

pip install -r requirements.txt

Installation guide

Download the code and dataset with the command:

git clone https://github.com/ninglab/TransferAct.git

Data Processing

1. Use provided processed dataset

One can use our provided processed dataset in ./data/pairs/: the dataset of pairs of processed balanced assays $\mathcal{P}$ . Check the details of bioassay selection, processing, and assay pair selection in our paper in Section 5.1.1 and Section 5.1.2, respectively. We provided our dataset of pairs as data/pairs.tar.gz compressed file. Please use tar to de-compress it.

2. Use own dataset

We provide necessary scripts in ./data/scripts/ with the processing steps in ./data/scripts/README.md.

Training

1. Running TAc

  • To run TAc-dmpn,
python code/train_aada.py --source_data_path <source_assay_csv_file> --target_data_path <target_assay_csv_file> --dataset_type classification --extra_metrics prc-auc precision recall accuracy f1_score --hidden_size 25 --depth 4 --init_lr 1e-3 --batch_size 10 --ffn_hidden_size 100 --ffn_num_layers 2 --epochs 40 --alpha 1 --lamda 0 --split_type index_predetermined --crossval_index_file <index_file> --save_dir <chkpt_dir> --class_balance --mpn_shared
  • To run TAc-dmpna, add these arguments to the above command
--attn_dim 100 --aggregation self-attention --model aada_attention

source_data_path and target_data_path specify the path to the source and target assay CSV files of the pair, respectively. First line contains a header smiles,target. Each of the following lines are comma-separated with the SMILES in the 1st column and the 0/1 label in the 2nd column.

dataset_type specifies the type of task; always classification for this project.

extra_metrics specifies the list of evaluation metrics.

hidden_size specifies the dimension of the learned compound representation out of GNN-based feature generators.

depth specifies the number of message passing steps.

init_lr specifies the initial learning rate.

batch_size specifies the batch size.

ffn_hidden_size and ffn_num_layers specify the number of hidden units and layers, respectively, in the fully connected network used as the classifier.

epochs specifies the total number of epochs.

split_type specifies the type of data split.

crossval_index_file specifies the path to the index file which contains the indices of data points for train, validation and test split for each fold.

save_dir specifies the directory where the model, evaluation scores and predictions will be saved.

class_balance indicates whether to use class-balanced batches during training.

model specifies which model to use.

aggregation specifies which pooling mechanism to use to get the compound representation from the atom representations. Default set to mean: the atom-level representations from the message passing network are averaged over all atoms of a compound to yield the compound representation.

attn_dim specifies the dimension of the hidden layer in the 2-layer fully connected network used as the attention network.

Use python code/train_aada.py -h to check the meaning and default values of other parameters.

2. Running TAc-fc variants and ablations

  • To run Tac-fc,
python code/train_aada.py --source_data_path <source_assay_csv_file> --target_data_path <target_assay_csv_file> --dataset_type classification --extra_metrics prc-auc precision recall accuracy f1_score --hidden_size 25 --depth 4 --init_lr 1e-3 --batch_size 10 --ffn_hidden_size 100 --ffn_num_layers 2 --local_discriminator_hidden_size 100 --local_discriminator_num_layers 2 --global_discriminator_hidden_size 100 --global_discriminator_num_layers 2 --epochs 40 --alpha 1 --lamda 1 --split_type index_predetermined --crossval_index_file <index_file> --save_dir <chkpt_dir> --class_balance --mpn_shared
  • To run TAc-fc-dmpna, add these arguments to the above command
--attn_dim 100 --aggregation self-attention --model aada_attention
Ablations
  • To run TAc-f, add --exclude_global to the above command.
  • To run TAc-c, add --exclude_local to the above command.
  • Adding both --exclude_local and --exclude_global is equivalent to running TAc.

3. Running Baselines

DANN

python code/train_aada.py --source_data_path <source_assay_csv_file> --target_data_path <target_assay_csv_file> --dataset_type classification --extra_metrics prc-auc precision recall accuracy f1_score --hidden_size 25 --depth 4 --init_lr 1e-3 --batch_size 10 --ffn_hidden_size 100 --ffn_num_layers 2 --global_discriminator_hidden_size 100 --global_discriminator_num_layers 2 --epochs 40 --alpha 1 --lamda 1 --split_type index_predetermined --crossval_index_file <index_file> --save_dir <chkpt_dir> --class_balance --mpn_shared
  • To run DANN-dmpn, add --model dann to the above command.
  • To run DANN-dmpna, add --model dann_attention --attn_dim 100 --aggregation self-attention --model to the above command.

Run the following baselines from chemprop as follows:

FCN-morgan

python chemprop/train.py --data_path <assay_csv_file> --dataset_type classification --extra_metrics prc-auc precision recall accuracy f1_score --init_lr 1e-3 --batch_size 10 --ffn_hidden_size 100 --ffn_num_layers 2 --epochs 40 --features_generator morgan --features_only --split_type index_predetermined --crossval_index_file <index_file> --save_dir <chkpt_dir> --class_balance

FCN-morganc

python chemprop/train.py --data_path <assay_csv_file> --dataset_type classification --extra_metrics prc-auc precision recall accuracy f1_score --init_lr 1e-3 --batch_size 10 --ffn_hidden_size 100 --ffn_num_layers 2 --epochs 40 --features_generator morgan_count --features_only --split_type index_predetermined --crossval_index_file <index_file> --save_dir <chkpt_dir> --class_balance

FCN-dmpn

python chemprop/train.py --data_path <assay_csv_file> --dataset_type classification --extra_metrics prc-auc precision recall accuracy f1_score --hidden_size 25 --depth 4 --init_lr 1e-3 --batch_size 10 --ffn_hidden_size 100 --ffn_num_layers 2 --epochs 40 --split_type index_predetermined --crossval_index_file <index_file> --save_dir <chkpt_dir> --class_balance

FCN-dmpna

Add the following to the above command:

--model mpnn_attention --attn_dim 100 --aggregation self-attention

For the above baselines, data_path specifies the path to the target assay CSV file.

FCN-dmpn(DT)

python chemprop/train.py --data_path <source_assay_csv_file> --target_data_path <target_assay_csv_file> --dataset_type classification --extra_metrics prc-auc precision recall accuracy f1_score  --hidden_size 25 --depth 4 --init_lr 1e-3 --batch_size 10 --ffn_hidden_size 100 --ffn_num_layers 2 --epochs 40 --split_type index_predetermined --crossval_index_file <index_file> --save_dir <chkpt_dir> --class_balance

FCN-dmpna(DT)

--model mpnn_attention --attn_dim 100 --aggregation self-attention

For FCN-dmpn(DT)and FCN-dmpna(DT), data_path and target_data_path specify the path to the source and target assay CSV files.

Use python chemprop/train.py -h to check the meaning of other parameters.

Testing

  1. To predict the labels of the compounds in the test set for Tac*, DANN methods:

    python code/predict.py --test_path <test_csv_file> --checkpoint_dir <chkpt_dir> --preds_path <pred_file>

    test_path specifies the path to a CSV file containing a list of SMILES and ground-truth labels. First line contains a header smiles,target. Each of the following lines are comma-separated with the SMILES in the 1st column and the 0/1 label in the 2nd column.

    checkpoint_dir specifies the path to the checkpoint directory where the model checkpoint(s) .pt filles are saved (i.e., save_dir during training).

    preds_path specifies the path to a CSV file where the predictions will be saved.

  2. To predict the labels of the compounds in the test set for other methods:

    python chemprop/predict.py --test_path <test_csv_file> --checkpoint_dir <chkpt_dir> --preds_path <pred_file>
    

Compound Prioritization using dmpna:

Please refer to the README.md in the comprank directory.

Owner
NingLab
NingLab
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