DeepDota

Dota 2 Match Winner Prediction

Data source

22,000,000 data records were collected from the OpenDota API.

Data preprocessing

Additional feature extraction was performed to create training/test datasets.

First, 21,890,000 data records were used to create hero statistics contained in two (130, 130) matrices called the synergy matrix, and the counter matrix.

Synergy matrix

The synergy matrix informs how well a hero with a specific ID (0-129) works WITH another hero.

.	0	1	...	128	129
0
1
...
128
129

Counter matrix

The counter matrix informs how well a hero with a specific ID (0-129) works AGAINST another hero.

.	0	1	...	128	129
0
1
...
128
129

Then, 110,000 data records were used to create 9,000 trainings samples and 1,000 test samples.

Each sample is created from the (10, 10) synergy/counter matrix, and the label.

Synergy/counter matrix

The synergy/counter matrix contains the statistics collected for each hero in radiant and dire team.

.	0	1	2	3	4	5	6	7	8	9
0	rr	rr	rr	rr	rr	rd	rd	rd	rd	rd
1	rr	rr	rr	rr	rr	rd	rd	rd	rd	rd
2	rr	rr	rr	rr	rr	rd	rd	rd	rd	rd
3	rr	rr	rr	rr	rr	rd	rd	rd	rd	rd
4	rr	rr	rr	rr	rr	rd	rd	rd	rd	rd
5	dd	dd	dd	dd	dd	dr	dr	dr	dr	dr
6	dd	dd	dd	dd	dd	dr	dr	dr	dr	dr
7	dd	dd	dd	dd	dd	dr	dr	dr	dr	dr
8	dd	dd	dd	dd	dd	dr	dr	dr	dr	dr
9	dd	dd	dd	dd	dd	dr	dr	dr	dr	dr

Where:
rr - radiant/radiant synergy score,
rd - radiant/dire counter score,
dd - dire/dire synergy score,
dr - dire/radiant counter score.

Label

Label informs about the match winner:
0 - dire victory,
1 - radiant victory.