Update README.md

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-Winning entry to the Kaggle ECML/PKDD destination competition.
-
-https://www.kaggle.com/c/pkdd-15-predict-taxi-service-trajectory-i
-
+Code of the winning entry to the Kaggle ECML/PKDD destination competition(https://www.kaggle.com/c/pkdd-15-predict-taxi-service-trajectory-i). Our approach is described there: http://arxiv.org/abs/1508.00021
 
 ## Dependencies
 
@@ -39,7 +36,7 @@ Here is a brief description of the Python files in the archive:
   
 ## How to reproduce the winning results?
 
-There is an helper script `prepare.sh` which might helps you (by performing steps 1-6 and some other checks), but if you encounter an error, the script will re-execute all the steps from the beginning (before the actual training, steps 2, 4 and 5 are quite long).
+There is an helper script `prepare.sh` which might help you (by performing steps 1-6 and some other checks), but if you encounter an error, the script will re-execute all the steps from the beginning (before the actual training, steps 2, 4 and 5 are quite long).
 
 Note that some script expect the repository to be in your PYTHONPATH (go to the root of the repository and type `export PYTHONPATH="$PWD:$PYTHONPATH"`).