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It is Okay to Not Be Okay: Overcoming Emotional Bias in Affective Image Captioning by Contrastive Data Collection

This repo host the codebase used in this paper which was accepted at CVPR 2022. It contains the following:

The following figure shows a sample of contrasting emotions for visually similar paintings. Teaser

Dataset Download

Our contrastive dataset complements ArtEmis, thus to compile the full version, you should download:

Next, unzip ArtEmis into dataset/official_data/ and place the Contrastive.csv file under the same directory. Unzip the WikiArt paintings in any directory and update the <PATH_TO_WIKIART> whenever you come across it.

To merge them and create the train test splits. Please follow the preprocessing steps in the SAT section.

Show Attend and Tell

Our implementation is heavily based on the SAT model in the original ArtEmis dataset[1]. We made this repo self-contained by including the instructions and files to reproduce the results of our paper. But, for more detailed instructions and analysis notebooks, please refer to the original repo.

Environment setup (SAT)

Please install conda if you have not already. Then,

cd neural_speaker/sat/
conda create -n artemis-sat python=3.6.9 cudatoolkit=10.0
conda activate artemis-sat
pip install -e .

Dataset Preprocessing

Now, you can resume combining and preprocessing the dataset.

conda activate artemis-sat
python dataset/combine.py --root dataset/official_data/
python neural_speaker/sat/artemis/scripts/preprocess_artemis_data.py -save-out-dir dataset/full_combined/train/ -raw-artemis-data-csv  dataset/official_data/combined_artemis.csv --preprocess-for-deep-nets True 
python dataset/create_parts.py

Congratulations, you now have the preprocessed data ready!

The naming of each directory reflects the type of instances in each dataset:

Train sets:

  • combined is basically ArtEmis 2.0, it contains all the contrastive data and a sample of similar size from ArtEmis 1.0
  • full_combined contains all contrastive data and all of ArtEmis 1.0
  • new contains all the contrastive data only
  • old_full is ArtEmis 1.0
  • old_large a sample of same size as combined but all samples come from ArtEmis 1.0
  • old_small a sample of same size as new but comes only from ArtEmis 1.0

Test sets:

  • test_40 is the subset from ArtEmis 1.0 with paintings having 40+ annotations, it contains ~700 paintings
  • test_all is a test set from the ArtEmis 2.0 with samples from both ArtEmis 1.0 and the contrastive data
  • test_new contains samples only from the contrastive data
  • test_old contains samples only from ArtEmis 1.0
  • test_ref is the same test set used in the original ArtEmis paper

Except for test_40 all test sets have paintings with 5 captions. We made sure that these paintings are not included in any training set. We created all of these test sets to guarantee a fair comparison and ensure no data leak.

Now, let's train some Neural Speakers next. We will start first with Show, Attend, and Tell since we have already setup its environment, then we will train Meshed Memory Transformer.

SAT Neural Speaker

The pipeline for the SAT neural speaker is as follows (each phase has it's scripts):

  • Train a SAT model on a preprocessed dataset, and save the trained model
  • Caption a test set using the trained SAT model, and save the generated captions to a file
  • Evaluate the generated captions via a master script and notebooks for in depth analysis

Training SAT model

To train a SAT model,

conda activate artemis-sat
mkdir -p <LOGS PATH>
python neural_speaker/sat/artemis/scripts/train_speaker.py \
 -log-dir <LOGS PATH> \
 -data-dir <TRAIN DATASET PATH>  \
 -img-dir <PATH TO WIKIART IMAGES>  \
 [--use-emo-grounding True]

For example to train on the Combined dataset with emotional grounding (if you followed the exact setup)

conda activate artemis-sat
mkdir -p sat_logs/sat_combined
python neural_speaker/sat/artemis/scripts/train_speaker.py \
 -log-dir sat_logs/sat_combined \
 -data-dir dataset/combined/train/  \
 -img-dir <PATH TO WIKIART IMAGES>  \
 --use-emo-grounding True

The trained SAT model will be saved under the log-dir

NOTE: you can try different training sets found at datasets/

Generating Captions

Now, let's use our trained model to generate captions. For example let's use the model trained above and generate captions for the $ArtEmis_{C40}$ test set.

conda activate artemis-sat
mkdir -p sat_sampled
python neural_speaker/sat/artemis/scripts/sample_speaker.py \
-speaker-saved-args sat_logs/sat_combined/config.json.txt \
-speaker-checkpoint sat_logs/sat_combined/checkpoints/best_model.pt \
-img-dir <PATH TO WIKIART IMAGES> \
-out-file  sat_sampled/sat_combined.pkl \
--custom-data-csv  dataset/test_40/test_40.csv 

The generated captions will be saved at sampled/sat_combined.pkl. Next, we will evaluate them against the ground truth captions.

Generated Captions Evaluation

To produce the metrics reported in the paper for the generated captions,

conda activate artemis-sat
python neural_speaker/sat/get_scores.py \
-captions_file sat_sampled/sat_combined.pkl \
-vocab_path dataset/combined/train/vocabulary.pkl \
-test_set dataset/test_40/test_40.csv \
[--filter (fine | coarse)]

--filter argument is used to break down the scores per emotions as reported in the paper. You can select one of the 3 available options [fine, coarse]; fine break the score per 9 emotions while coarse break the scores per 3 classes (positive, negative, and something-else)

NOTE: get_scores.py has more metrics, have fun trying them out.

Finally, you can use neural_speaker/sat/visualizations.ipynb to get the plots used in the paper. You can also use it to visualize the captions and some attention maps over the input images. We also decided to leave the original analysis notebooks from ArtEmis 1.0 under neural_speaker/sat/artemis/notebooks/ because they are very rich and can help gain useful insights.

Meshed Memory Transformer

Again, our implementation is heavily based on the M2 model in the original ArtEmis dataset found here. For more details, please visit their repo. We included mostly relevant instructions and files to reproduce the results in our paper.

Environment setup (M2)

To reproduce our results, unfortunately, you have to install a conda env for each neural speaker. We faced lots of comptability issues when we tried to merge the two envs into one, so we kept them separate.

cd neural_speaker/m2/
conda env create -f environment.yml
conda activate artemis-m2

You also have to download spacy data for calculating the metrics,

python -m spacy download en

Data preparation

DISCLAIMER: THIS PART IS COPIED FROM THE ORIGINAL REPO

Please, prepare annotations and detection features files for the ArtEmis dataset to run the code:

  1. Download Detection-Features and unzip it to some folder.
  2. Download pickle file which contains [<image_name>, <image_id>], and put it in the same folder where you have extracted detection features.

We suggest placing the above files under neural_speaker/m2/extracted_features/

Training M2 model

To train a M2 model,

conda activate artemis-m2
python neural_speaker/m2/train.py \
  --exp_name combined \
  --batch_size 128 \
  --features_path neural_speaker/m2/extracted_features/ \
  --workers 32 \
  --annotation_file dataset/combined/train/artemis_preprocessed.csv \
 [--use_emotion_labels True]

The trained model will be saved under the directory saved_m2_models/

Evaluating M2 model

Evaluating the M2 model is more straightforward since you need to run only one script

conda activate artemis-m2
python neural_speaker/m2/test.py \
  --exp_name combined \
  --batch_size 128 \
  --features_path neural_speaker/m2/extracted_features/ \
  --workers 32 \
  --annotation_folder dataset/test_40/test_40.csv \
 [--use_emotion_labels True]

This will automatially load the model at saved_m2_models/ with the --exp_name and use it to generate captions for the dataset provided using --annotation_folder. Finally, it will evaluate the generated captions.

Nearest Neighbor Neural Speaker

The M2 directory contains the script to train a baseline NN model. There is only one script to generate the captions and evaluate them since no training is needed.

conda activate artemis-m2
python neural_speaker/m2/nn_baseline.py \
-splits_file dataset/combined/train/artemis_preprocessed.csv \
-test_splits_file dataset/test_all/test_all.csv \
--idx_file neural_speaker/m2/extracted_features/wikiart_split.pkl
--nn_file neural_speaker/m2/extracted_features/vgg_nearest_neighbors.pkl

Semantic Space Theory Analysis

In this final section, we finetune a roBERTa language model to classify the extended set of emotions provided by GoEmotions dataset.

We start by training the model, provided by huggingfaces, on the GoEmotions dataset. Then, we use the trained model to predict the labels for the captions in the different versions of ArtEmis. Finally, we plot the histogram of the predicted emotions as well as produce a heatmap corresponding to the pairwise correlation of predicted emotions.

Environment setup (SST)

Unfortunately, there is one more conda env you need to install 😅

cd extended_emotions
conda env create -f environment.yml
conda activate artemis-sst

Training Emotion Classifier

We provide two scripts:

  • extended_emotions/train_goemotions.py to train a roBERTa model on GoEmotions
  • extended_emotions/train_artemis.py to train a roBERTa model on ArtEmis

To train the GoEmotions model,

conda activate artemis-sst
python extended_emotions/train_goemotions.py \
  -o goemotions_classifier \
  -m roberta \
  -s base 

The model will be saved under go_models/ directory

To predict the extended emotions on ArtEmis dataset,

conda activate artemis-sst
python extended_emotions/artemis_analysis/predict_emotions.py \
  -model_dir <PATH TO TRAINED MODEL> \
  --model roberta \
  --model_size base \
  --dataset dataset/combined/train/artemis_preprocessed.csv \
  --dataset_name combined

This will save a version of the dataset augmented with the scores for the extended set of emotions provided by GoEmotions.

We provide the code to produce the plots in our paper in the notebook extended_emotions/artemis_analysis/extended_emotions.ipynb

References

[1] ArtEmis

[2] Huggingface

[3] GoEmotions

[4] M2 Transformer

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Code for the paper: It is Okay to Not Be Okay: Overcoming Emotional Bias in Affective Image Captioning by Contrastive Data Collection

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