Technology Fault on May 11

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Xinyu

Biendata Staff

Technology Fault on May 11

posted in KDD CUP of Fresh Air

2018-05-12 03:51

Dear All Participants:
 
We had been experiencing technical difficulties for London stations' API around 13:00 UTC, May 11, until we fixed the problem. 
 
The temporary malfunction was due to the process we were trying to fix some serious delays of the data source of London air quality and led to wrong data points in several London's stations, from 7:00 – 12:00 AM UTC time, May 11. However, the scoring system was not affected. We have fixed all the problems. Please download the data again, through the same APIs, if you downloaded London's data in that period of time.
 
In addition, from May 1st to May 10th, our ground truth datasets for scoring were more complete than the data released by APIs, since the original data source from BL0, KF1, CD9 and ST5 had serious delays. Therefore, some data we used for scoring was missing in the API. We have added all missing data in the API and this process led to the malfunction mentioned above. We have taken action to reinforce the synchronization of all data APIs. 
 
Sorry for the confusion and inconvenience due to this problem, and wish you all the best luck in the last several weeks of the competition.
 
The affected stations with number of lines data added in the last 10 days:
 
{'CD1': 0, 'BL0': 119, 'GR4': 0, 'MY7': 0, 'HV1': 0, 'GN3': 10, 'GR9': 0, 'LW2': 0, 'GN0': 0, 'KF1': 118, 'CD9': 69, 'ST5': 44, 'TH4': 0, 'CT3': 60, 'CT2': 45, 'BX9': 39, 'BX1': 150, 'RB7': 17, 'TD5': 22}

23 comments

J_Ma

2018-05-14 02:35