Update README.md

README.md

@@ -34,11 +34,11 @@ The provided dataset is only used for research purposes!
 
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-## Abstract
+# Abstract
 
 Question answering (QA) systems have gained explosive attention in recent years. However, QA tasks in Vietnamese do not have many datasets. Significantly, there is mostly no dataset in the medical domain. Therefore, we built a Vietnamese Healthcare Question Answering dataset (ViHealthQA), including 10,015 question-answer passage pairs for this task, in which questions from health-interested users were asked on prestigious health websites and answers from highly qualified experts. This paper proposes a two-stage QA system based on Sentence-BERT (SBERT) using multiple negatives ranking (MNR) loss combined with BM25. Then, we conduct diverse experiments with many bag-of-words models to assess our system’s performance. With the obtained results, this system achieves better performance than traditional methods.
 
-## Dataset
+# Dataset
 The ViHealthQA dataset is consist of 10,015 question-answer passage pairs. Note that questions are from health-interested users asked on prestigious health websites and answers are from highly qualified experts.
 
 The dataset is divided into three parts as below:
@@ -46,4 +46,5 @@ The dataset is divided into three parts as below:
 2. Valid set: 2.01 question-answer pairs
 3. Test set: 993 question-answer pairs
 
+# Contact
 Please feel free to contact us by email luannt@uit.edu.vn if you have any further information!