Question_Answering_Models

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Question_Answering_Models

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This repo collects and re-produces models related to domains of question answering and machine reading comprehension

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# Question_Answering_Models

This repo collects and re-produces models related to domains of question answering and machine reading comprehension.

It's now still in the process of supplement.

## comunity QA

### Dataset

WikiQA, TrecQA, InsuranceQA

#### data preprocess on WikiQA

```
cd cQA
bash download.sh
python preprocess_wiki.py
```

### Siamese-NN model

This model is a simple complementation of a Siamese NN QA model with a pointwise way.

[To this repo for details](./cQA/siamese_nn)

#### train model

`python siamese.py --train`

#### test model

`python siamese.py --test`

### Siamese-CNN model

This model is a simple complementation of a Siamese CNN QA model with a pointwise way.

[To this repo for details](./cQA/siamese_cnn)

#### train model

`python siamese.py --train`

#### test model

`python siamese.py --test`

### Siamese-RNN model

This model is a simple complementation of a Siamese RNN/LSTM/GRU QA model with a pointwise way.

[To this repo for details](./cQA/siamese_rnn)

#### train model

`python siamese.py --train`

#### test model

`python siamese.py --test`

### note

All these three models above are based on the vanilla siamese structure. You can easily combine these basic deep learning module cells together and build your own models.

### QACNN

Given a question, a positive answer and a negative answer, this pairwise model can rank two answers with higher ranking in terms of the right answer.

[To this repo for details](./cQA/qacnn)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/qacnn.png)

#### train model

`python qacnn.py --train`

#### test model

`python qacnn.py --test`

Refer to:

* [Applying Deep Learning to Answer Selection: A Study and an Open Task](http://arxiv.org/abs/1508.01585v2)

### Decomposable Attention Model

[To this repo for details](./cQA/decomposable_att_model)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/decomposable_att.png)

#### train model

`python decomp_att.py --train`

#### test model

`python decomp_att.py --test`

Refer to:

* [A Decomposable Attention Model for Natural Language Inference](http://arxiv.org/abs/1606.01933v2)

### Compare-Aggregate Model with Multi-Compare

[To this repo for details](./cQA/seq_match_seq)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/multi-compare.png)

#### train model

`python seq_match_seq.py --train`

#### test model

`python seq_match_seq.py --test`

Refer to:

* [A Compare-Aggregate Model for Matching Text Sequences](http://arxiv.org/abs/1611.01747v1)

### BiMPM

[To this repo for details](./cQA/bimpm)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/bimpm1.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/bimpm2.png)

#### train model

`python bimpm.py --train`

#### test model

`python bimpm.py --test`

Refer to:

* [Bilateral Multi-Perspective Matching for Natural Language Sentences](http://arxiv.org/abs/1702.03814v3)

## Machine Reading Comprehension

### Dataset

CNN/Daily mail, CBT, SQuAD, MS MARCO, RACE

### GA Reader

To be done

![GA](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/GA.png)

Refer to:

* [Gated-Attention Readers for Text Comprehension](http://arxiv.org/abs/1606.01549v3)

### SA Reader

To be done

![SAR](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/SAR.png)

Refer to:

* [A Thorough Examination of the Cnn/Daily Mail Reading Comprehension Task](http://arxiv.org/abs/1606.02858v2)

### AoA Reader

To be done

![AoA](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/AOA.png)

Refer to:

* Attention-over-Attention Neural Networks for Reading Comprehension

### BiDAF

[To this repo for details](./MRC/BiDAF)

![BiDAF](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/BiDAF.png)

The result on dev set(single model) under my experimental environment is shown as follows:

| training step | batch size | hidden size  | EM (%) | F1 (%) | speed | device |
| :--------: |:------:|:------:|:------:|:------:|:------:|:------:|
| 12W   | 32   | 75   | 67.7 | 77.3 | 3.40 it/s | 1 GTX 1080 Ti |

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/bidaf_train.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/bidaf_dev.png)

Refer to:

* [Bidirectional Attention Flow for Machine Comprehension](https://arxiv.org/abs/1611.01603)

### RNet

[To this repo for details](./MRC/RNet)

![RNet](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/RNet.png)

The result on dev set(single model) under my experimental environment is shown as follows:

| training step | batch size | hidden size  | EM (%) | F1 (%) | speed | device | RNN type |
| :--------: |:------:|:------:|:------:|:------:| :------:| :------:| :------:| 
| 12W   | 32   | 75  | 69.1 | 78.2 | 1.35 it/s | 1 GTX 1080 Ti | cuDNNGRU|
| 6W   | 64   | 75  | 66.1 | 75.6 | 2.95 s/it | 1 GTX 1080 Ti | SRU |

RNet trained with cuDNNGRU:

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/rnet_train.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/rnet_dev.png)

RNet trained with SRU(without optimization on operation efficiency):

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/rnet_sru_train.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/rnet_sru_dev.png)

Refer to:

* [RNet](https://www.microsoft.com/en-us/research/publication/mrc/)
* [HKUST-KnowComp/R-Net](https://github.com/HKUST-KnowComp/R-Net)

### QANet

[To this repo for details](./MRC/QANet)

![QANet](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/QANet.png)

The result on dev set(single model) under my experimental environment is shown as follows:

| training step | batch size |attention heads| hidden size  | EM (%) | F1 (%) | speed | device |
| :--------: |:------:|:------:|:------:|:------:|:------:|:------:|:------:|
| 6W   | 32   | 1   | 96 | 70.2 | 79.7 |2.4 it/s | 1 GTX 1080 Ti |
| 12W   | 32   | 1   | 75 | 70.1 | 79.4 | 2.4 it/s | 1 GTX 1080 Ti |

Experimental records for the first experiment:

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/qanet_train.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/qanet_dev.png)

Experimental records for the second experiment(without smooth):

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/qanet_train_2.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/qanet_dev_2.png)

Refer to:

* QANet: Combining Local Convolution with Global Self-Attention for Reading Comprehension
* github repo of [NLPLearn/QANet](https://github.com/NLPLearn/QANet)

### Hybrid Network

[To this repo for details](./MRC/Hybrid)

This repo contains my experiments and attempt for MRC problems, and I'm still working on it.

| training step | batch size | hidden size  | EM (%) | F1 (%) | speed | device | description |
| :--------: |:------:|:------:|:------:|:------:|:------:|:------:|:------:|
| 12W   | 32  | 100 | 70.1 | 78.9 |1.6 it/s | 1 GTX 1080 Ti | \ |
| 12W   | 32  | 75 | 70.0 | 79.1 | 1.8 it/s | 1 GTX 1080 Ti | \ |
| 12W   | 32  | 75 | 69.5 | 78.8 | 1.8 it/s | 1 GTX 1080 Ti |with spatial dropout on embeddings|

Experimental records for the first experiment(without smooth):

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/hybrid_train_1.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/hybrid_dev_1.png)

Experimental records for the second experiment(without smooth):

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/hybrid_train_2.png)

![](https://raw.githubusercontent.com/l11x0m7/Question_Answering_Models/master/figures/hybrid_dev_2.png)

## Information

For more information, please visit http://skyhigh233.com/blog/2018/04/26/cqa-intro/.

Question_Answering_Models

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