[Context-Aware Dynamic Word Embeddings For Aspect Term Extraction](submitted to IEEE Transactions on Affective Computing and Affective Language Resources).

[Laptop] [Restaurant 16]:

• pytorch=1.3.1
• python=3.7.5
• transformers=2.3.0
• dgl=0.5

• Step 1:

Download official datasets and official evaluation scripts. We assume the following file names. SemEval 2014 Laptop (http://alt.qcri.org/semeval2014/task4/):

semeval/Laptops_Test_Data_PhaseA.xml
semevalLaptops_Test_Gold.xml
semeval/eval.jar

SemEval 2016 Restaurant (http://alt.qcri.org/semeval2016/task5/)

semeval/EN_REST_SB1_TEST.xml.A
semeval/EN_REST_SB1_TEST.xml.gold
semeval/A.jar

pre-trained embedding [data]

• Step 2:

Train:

python train_laptop.py 
python train_res.py

• Step 3:

Evaluate:

python evaluation_laptop.py [checkpoints]

python evaluation_res.py [checkpoints]

Kindly note that for reproducing the results of the following baselines, we use anaconda to create a new environment for each paper following the corresponding readme of their codes.

1. DE-CNN [paper] [code] [checkpoints]
2. Seq4Seq [paper] [code] [checkpoints]
3. MT-TSMSA [paper] [code] [checkpoints]
4. CL-BERT [paper] [code] [checkpoints]

Beside, we also modify the CL-BERT model, i.e., we add domain embedding to the representation of words. The code is in the [CL-BERT-new]

Step 1: Download datasets and pre-trained model weight from [code], and place these pre-trained model weight files as:

bert-pt/bert-laptop/ bert-pt/bert-rest/

Step 2: Train and evaluate:

python main.py