Update README.md

README.md

@@ -1,6 +1,6 @@
 # Optimized Item Selection Datasets
 
-We provide the datasets that are used to test the multi-level optimization framework ([AMAI'24](https://link.springer.com/epdf/10.1007/s10472-024-09941-x?sharing_token=9XBJ6cdglsdji19gFwuqQve4RwlQNchNByi7wbcMAY4VwIBKydj3Ja9OBjALNpg8nuO300abjlrHmZQFBVUqar-uYhBML28cmbovFgiHRRvd7TM2QAA_Hwd5J3U2MmKx0ugXwF6yz2hW75_88JpLmXSDJSuyCEwqZqtOcB7BhJU=),[CPAIOR'21](https://link.springer.com/chapter/10.1007/978-3-030-78230-6_27), [DSO@IJCAI'22](https://arxiv.org/abs/2112.03105)), for solving Item Selection Problem (ISP) to boost exploration in Recommender Systems. 
+We provide the datasets that are used to test the multi-level optimization framework ([AMAI'24](https://link.springer.com/epdf/10.1007/s10472-024-09941-x?sharing_token=9XBJ6cdglsdji19gFwuqQve4RwlQNchNByi7wbcMAY4VwIBKydj3Ja9OBjALNpg8nuO300abjlrHmZQFBVUqar-uYhBML28cmbovFgiHRRvd7TM2QAA_Hwd5J3U2MmKx0ugXwF6yz2hW75_88JpLmXSDJSuyCEwqZqtOcB7BhJU=), [DSO@IJCAI'22](https://arxiv.org/abs/2112.03105), [CPAIOR'21](https://link.springer.com/chapter/10.1007/978-3-030-78230-6_27)) for solving Item Selection Problem (ISP) to boost exploration in Recommender Systems. 
 
 The multi-objective optimization framework is implemented in [Selective](https://github.com/fidelity/selective) as part of `TextBased Selection`. By solving the ISP with Text-based Selection in Selective, we select a smaller subset of items with maximum diversity in the latent embedding space of items and maximum coverage of labels.
 
@@ -137,6 +137,7 @@ selector = Selective(SelectionMethod.TextBased(num_features=30,
 ## Citation
 If you use ISP in our research/applications, please cite as follows:
 
+```bibtex
 @article{amai2024,
   title        = {Integrating optimized item selection with active learning for continuous exploration in recommender systems},
   author       = {Serdar Kadioglu and Bernard Kleynhans and Xin Wang},
@@ -148,6 +149,7 @@ If you use ISP in our research/applications, please cite as follows:
   url          = {https://doi.org/10.1007/s10472-024-09941-x},
   doi          = {10.1007/S10472-024-09941-X}
 }
+```
 
 ```bibtex
   @inproceedings{cpaior2021,