Rules

You may submit 5 submissions every day and 50 in total in the development phase.

Accuracy

Submitted results are evaluated by the accuracy, widely used for binary classification problems.

• acc = (number of correctly classified test trajectories) / (total number of test trajectories)

It is 0 if all predictions are wrong, while 1 if perfect.

Submission Format of the result

There are 275 test trajectory, and classification results should be a 275-line text file, which contains 0 (male) or 1 (female) for each of test trajectory.

Each line has the label of the corresponding test trajectory; that is, line 0 is the label of the test trajectory 000.csv.

Predicted label is binary (character):

• male: 0
• female: 1

Here is an example:
=================
1
1
1
0
1
0
0
...
=================

• The name of this file should be "y_submission.txt" in the zip file to be uploaded.
• You need to zip the file to submit. (Do not put it in a folder in the zip file, do not include any folders. The file must be in the top in the zip file. ) Therefore the uploaded filename maybe "y_submission.txt.zip", or any zip file of the following contents:
• anyfilename.zip/
• y_submission.txt
• On linux or mac, the command "zip y_submission.txt.zip y_submission.txt" is enough.

Task

Classifying GPS trajectories of birds into male or female

Trajectory file format

A single CSV file (000.csv, 001.csv, ...) contains a trajectory of a trip,
and each line represents the information of a GPS location of a shearwater.
In addition to longitude and latitude, some other information is provided;
elapsed time and local clock time, solar azimuth and elevation angles.

• float: longitude
• float: latitude
• float: sun azimuth [degree] clockwise from the North
• float: sun elevation [degree] upward from the horizon
• int: (1) daytime (between sunrise and sunset), or (0) nighttime
• int: elapsed time [second] after starting the trip
• clock: local time (hh:mm:ss)
• int: days (starts from 0, and increments by 1 when the local time passes 23:59:59)

Float values are of the format %.5f, and fields are separated by a single comma.

Here is an example:

=================
139.29220,38.56632,76.42170,-4.45122,0,0,04:54:03,0
139.29300,38.56763,76.58196,-4.25726,0,60,04:55:03,0
139.29400,38.57053,76.73674,-4.06880,0,118,04:56:01,0
139.29620,38.57563,76.89729,-3.87201,0,178,04:57:01,0
...
=================

• Different trajectories have different number of GPS locations.
• The time interval between successive two GPS locations is approximately one minute (60 seconds) when GPS works well, otherwise interval may vary from one to several minutes, even hours and days.
• Trajectories in the training and test sets are in the same format.
• Ground truth labels for the training set are given in a separate file.

Labels: gender, or male/female

A single txt file of ground truth labels of the training set is provided.
Each line has the label of the corresponding training trajectory; that is, line 0 is the label of the training trajectory file 000.csv.

Label is binary (character):

• male: 0
• female: 1

Here is an example:
=================
1
1
1
0
1
0
0
...
=================

Stats: Numbers of the dataset

• Training set
• 326 male trajectories
• 305 female trajectories
• 631 in total
• Test set
• 275 trajectories

Prizes

Prize sponsort by Technosmart

Thanks to Tehcnosmart, the sponosor of this challenge, winners will recieve the following prizes;

• First place: 500EUR
• Second place: 300EUR
• Third place: 200EUR

Note that, to recieve the prizes, winners must publish their methods and/or codes available online (for example, as a technical report on arXiv and github) upon request by the organizer.

Travel grant

In addition, the first winner will recieve

• Flight/surface ticket (+ hotel for a few days) to Kyoto, one of the most beautiful cities in Japan especially in autumn, for attending the award seremony and presenting the method in the poster session of our symposium.
• Date: 5-6 September 2018
• Venue: Hardy Hall, Kanbai-kan, Imadegawa Campus, Doshisha University, Kyoto, Japan
• website: Symposium on Systems Science of Bio-Navigation 2018
• find it on Google map

Note that

• In case of team submission, the travel grant goes to one person only who is a representative.
• The prize will go to the next winner if the first winner withdraws the attendance and the poster presentation for any reaasons (e.g., personal or VISA issues).
• We will provide an invitation letter and the winner have to obtain a VISA by himself/herself.

Terms and Conditions

This challenge is governed by the general ChaLearn contest rules.

Results and code

1. First place 72.00% by fayzur20
   • TechRep: Dewan Fayzur, Ensemble Learning Applied to Classify GPS Trajectories of Birds into Male or Female, arXiv:1808.08613
   • Github repo https://github.com/dfayzur/Animal-Behavior-Challenge-ABC2018
2. Second place 70.18% by rook_s_pawn
   • Github repo https://github.com/rook-s-pawn/Animal_comp2018
3. Third place 69.09% by tanaka and pankajvshrma
   • Github repo by pankajvshrma https://github.com/pankismart/Animal_Gender
   • Github repo by tanaka https://github.com/tanakarei256/ABC2018