The evaluation metric for this competition is [RMSE]("https://www.statisticshowto.datasciencecentral.com/rmse/), Root Mean Square Error. 

RMSE is defined as:
\[ RMSE = \sqrt{MSE} = \sqrt{\dfrac{1}{N}\sum_{i=1}^N\left(y_i-h_w(x_i)\right)^2} \]
where, there are N samples, y
i
is the true/known target label for the i
th
sample, and h
w
(x
i
) is the predicted target for the input sample x
i
.
Submission Format
For every author in the dataset
, submission files should contain two columns: ID and BWEIGHT.
The file should contain a header and have the following format:
ID,BWEIGHT
2001,6.8125
2002,7.25
2003,6.9375
2004,7.375
etc.