海洋研究開発機構 熱帯低気圧(台風等)検出アルゴリズム作成
国立研究開発法人 海洋研究開発機構
  • Closing: Oct 26, 2018
  • 3293 submissions / 210 competitors
  • 654 participants
  • 総額¥1,000,000相当の賞品

お知らせ

11/12     最終評価に対するPrecision, Recall, F-measureの値一覧をこちらに掲載しました。参考にしてください。


背景

台風やハリケーンなどの大型の熱帯低気圧は人間生活、農業、林業、漁業、インフラに対して甚大な被害をもたらします。熱帯低気圧の発生をできる限り早く予測することは非常に重要な課題です。ところが、発生前の熱帯低気圧(熱帯低気圧のタマゴ)は専門家でさえも正しく識別するのは難しく、熱帯低気圧の発生予測を精度よく行うのは難しいのが現状です。

今回は海洋研究開発機構が提供する雲解像気象モデルNICAM [1], [2], [3]によって生成された1984年から2000年の合計17年分の大気シミュレーションデータ(画像化されたデータ)を用いて熱帯低気圧とそのタマゴを検出するアルゴリズムの作成に挑戦していただきます。 

※ NICAMは海洋研究開発機構、東京大学、理化学研究所によって共同開発されました。
※※ 本データは文部科学省のHPCI戦略プログラム分野3「防災・減災に資する地球変動予測」のもと、理化学研究所のスーパーコンピュータ「京」を利用して得られたものです(課題番号:hp120279,hp130010,hp140219)。

タスク説明

パッチ画像に対してそれが熱帯低気圧またはそのタマゴを含むか否かを判別していただきます。



懸賞

1位 NVIDIA賞:NVIDIA TITAN V    ※1

2位 GDEP賞:GeForce RTX 2080 Ti    ※2

3位 アーク情報システム賞:ELSA GeForce GTX 1080 Ti 11GB ST    ※3

4位 CRAY賞:GoPro HERO6    ※4

※1 エヌビディア合同会社より提供
※2 GDEPソリューションズ株式会社株式会社GDEPアドバンスより提供
※3 (株)アーク情報システムより提供
※4 クレイ・ジャパン・インクより提供


データ説明

画像:64px×64pxのグレースケールパッチ画像

  水平解像度:14 km

学習用画像データ:2,244,223枚(1984年~1998年の15年分)

  正例:71,779枚
  負例:2,172,444枚

評価用画像データ:299,135枚(1999年~2000年の2年分)

参考文献

[1] C. Kodama, Y. Yamada, A. T. Noda, K. Kikuchi, Y. Kajikawa, T. Nasuno, T. Tomita, T. Yamaura, H. G. Takahashi, M. Hara, Y. Kawatani, M. Satoh, and M. Sugi “A 20-year climatology of a NICAM AMIPtype simulation,” Journal of the Meteorological Society of Japan, vol. 93, no. 4, pp. 393–424, 2015.

[2] H. Tomita, and M. Satoh, “A new dynamical framework of nonhydrostatic global modeling using the icosahedral grid,” Fluid Dynamics, vol. 1, no. 8, pp. 357–400, 2004. 

[3]M. Satoh, H. Tomita, H. Yashiro, H. Miura, C. Kodama, T. Seiki, A. T. Noda, Y. Yamada, D. Goto, M. Sawada, T. Miyoshi, Y. Niwa, M. Hara, T. Ohno, S. Iga, T. Arakawa, T. Inoue, and H. Kubokawa, “The Non-hydrostatic icosahedral atmospheric model: Description and development,” Progress in Earth and Planetary Science, vol. 1, pp. 1–32, 2014. 

In order to participate in the Competitions, you are required to agree to these Terms, in addition to the Terms of Use of SIGNATE.JP Site (hereinafter referred to as the "Terms of Use"). You should participate in the Competition after reading carefully and agreeing to these Terms. If you agree, these Terms, the matters that are added to these Terms as "additional matters", the Terms of Use and other terms and conditions that you have agreed to shall be binding on the relevant parties as integral documents.


Article 1. Definitions

1.For the purpose of these Terms, the following terms shall be defined as follows:

(1)"Site" means the website "SIGNATE (https://signate.jp)" on which the Competitions are posted.
(2)"Competition" means any competition on AI development or data analysis on the Site as held by the Host.
(3)"Host" is the host(s) of the Competitions. The Host may be SIGNATE, Inc. (hereinafter referred to as the "Company") or the Company’s client companies, affiliated companies, schools or organizations, etc. (hereinafter referred to as the "Client(s)").
(4)"Participant(s)" means the member(s) who participate in a Competition.
(5)"Submissions" means, collectively, the analysis and prediction results and reports, etc. as submitted in the Competition.
(6)"Final Submissions" means the Submissions that are specified by a Participant on the prescribed page in the Site by the time of completion of a Competition.
(7)"Winner Candidate" means the Participant who has received a notice from the Company that he/she is nominated as a winner candidate.
(8)"Submissions for Final Judgment" means the analysis and prediction model and learning data, etc. as submitted by a Winner Candidate pursuant to the instructions of the Company.
(9)"Final Judgment" means the acceptance inspection and judgment, including reproducibility verification, by the Company for the Final Submissions and Submissions for Final Judgment of a Winner Candidate.
(10)"Winner" means the Winner Candidate who is informed by the Company that he/she has won a prize.
2.Unless otherwise defined in these Terms, the terms used in these Terms that are defined in the Terms of Use shall have the same meaning as defined in the Terms of Use.

Article 2. Competition

1.A member who desires to participate in a Competition shall be required to agree to these Terms and to satisfy the conditions for participation as specified in each such Competition. Any person who is not a member shall not participate in any Competition.
2.Participants shall participate in each Competition in the manner as advised by the Company and shall be obligated to comply with the rules as prescribed in each Competition.
3.Participants may submit the Submissions for the assignment of each Competition during the period of such Competition and submit a proposal on the method of solving the problem to the Host by the end of the period of the said Competition.
4.Participants may submit the Final Submissions in the form specified in each Competition by the time specified by the said Competition.
5.The Final Submissions as submitted shall be evaluated by the evaluation method as specified in each Competition and the final rank order shall be determined based on such evaluation.
6.Any Participant may, as a general rule, check the evaluation results of the Participant him/herself and each of the other Participants on the Site for the Submissions that may be evaluated quantitatively.
7.Participants shall be liable or otherwise responsible for their own Submissions, including their legality.
8.Participants shall not submit any Submissions that have no direct relationship to each Competition.
9.Unless otherwise provided for, Participants shall not directly communicate to, consult with, make a request to, solicit or take any other actions with the Host in respect of the matters related to a Competition during the period of the said Competition.
10.Any Participant who has uncertainty or questions about any Competition shall make sure to contact the Company or its designee through the procedures prescribed by the Company as posted on the Site.
11.The Company shall not be obligated to pay any remuneration or other consideration other than those prescribed in the following Article for any act of the Participants as prescribed in paragraphs hereof.

Article 3. Reward and Vesting of Rights

1.Unless otherwise provided for, any Participant shall satisfy the following requirements in order to be entitled to receive a reward in any Competition that offers a reward:

(1)To be a winner;
(2)To agree to transfer to the Host and the relevant transferee of rights in such Competition all transferable rights, such as copyrights, rights to obtain patents and know-how, etc. in and to all analysis and prediction results, reports, written explanations on analysis and prediction model, algorism, source code and reproduction method, etc., and the Submissions contained in the Final Submissions and Submissions for Final Judgment (including the rights as prescribed in Article 27 and Article 28 of the Copyright Act and the rights to obtain patents; hereinafter referred to as the "Rights");
(3)To agree that any relevant transferee of rights exclusively has the right to use the know-how contained in the Final Submissions and Submissions for Final Judgment for its own business and other purpose without any restriction;
(4)To agree not to exercise moral rights to the Rights against the relevant transferee of rights;
(5)To enter into an agreement for the transfer of the Rights with the relevant eligible transferee of rights, including the agreement to the matter in the preceding three (3) items and other reasonable provisions;
(6)To have the personal identity of such Participant verified by the Company.
(7)Not to breach any provision of these Terms and the Terms of Use.

2.Any Winner Candidate shall, after having received a notice from the Company that he/she is nominated as a winner candidate, submit the Submissions for Final Judgment on or before the designated date and communicate the matters requiring confirmation or response in relation to the Final Submissions and the Submissions for Final Judgment to the Company on or before the designated date, in accordance with the instructions of the Company. The Company shall carry out the final judgment based on such matters requiring confirmation or response. If the Company receives no confirmation or response satisfactory to the Company on or before the designated date, the Company may exclude such Winner Candidate from the subject of the final judgment.
3.If the Company considers that the Final Submissions or Submissions for Final Judgment need to be amended or modified, or there occur any additional matters requiring confirmation, in the course of the final judgment, any Winner Candidate shall take action or make response in relation to the matters that require amendment, etc. or the detailed information on the matters requiring confirmation, on or before the designated date in accordance with the instructions of the Company. If the Company receives no action or response satisfactory to the Company on or before the designated date, the Company may exclude such Winner Candidate from the final judgment.
4.The Company shall determine the Winner through the final judgment and inform the Winner to that effect.

Article 4. Confidentiality

1.Any Participant shall treat any information and data that they receive from the Company in relation to each Competition (hereinafter referred to as the "Company-Provided Information") as confidential information and shall not disclose the same to any third party and use the same for any purpose other than for such Competition and purpose specified by the Company separately; provided, however, that the confidential information shall not include any information that falls under any of the following items:

(1)Information that is known to the public at the time of the disclosure;
(2)Information that is already possessed by the Participant at the time of the disclosure (only in the case where such Participant may demonstrate such fact by reasonable means);
(3)Information that becomes known to the public without the fault of the Participant after the disclosure;
(4)Information that is independently developed by the Participant without reference to any information as disclosed (except for those Submissions of the person eligible for a prize which are evaluated); or
(5)Information that is rightfully disclosed by any third party having a right to do so without the obligations of confidentiality (only in the case where such Participant may demonstrate such fact by reasonable means).

2.Any Participant shall delete or return to the Company the Company-Provided Information immediately after the completion of each Competition.
3.Any Winner shall handle his/her Final Submissions and Submissions for Final Judgment in the same manner as prescribed in paragraph 1 hereof.
4.If there is any separate arrangement in relation to the confidential information in each Competition, the provisions of such arrangement shall prevail over the provisions of these Terms.
5.If any dispute occurs between the Host or other third party and the Company due to the breach by any Participant of the provisions of this Article and such other party makes any claim against the Company, such Participant shall compensate for any damage, loss, expenses (including, but not limited to, attorneys’ fees), lost profits and lost revenues, etc. incurred by the Company.
6.The provisions of this Article shall survive the termination of the relevant Competition or the Participant’s completion of the procedures for withdrawal from the service of the Company, with respect to the Company-Provided Information and the Winner’s Final Submissions and Submissions for Final Judgment for a period of five (5) years thereafter.

Article 5. Prohibited Acts of Participants

1.The Company shall prohibit Participants from engaging in any of the following acts in any Competition:

(1)An act of cracking, cheating, spoofing other misconduct;
(2)An act of directly communicating to, consulting with, making a request to, soliciting or responding to solicitation or other activities to other Participants or the Host (other than the Company) without the involvement of the Company;
(3)Any profitmaking activities using the Competition (including solicitation or scouting activities, and use for a third party in educational business, etc.) without the prior approval of the Company in writing or any other manner specified by the Company;
(4)Transfer, offering as collateral or other disposition of the status as a Participant or the rights or obligations as a Participant (except with the prior written consent of the Company); and
(5)Any other act in breach of the Terms of Use.

2.If the Company deems that a Participant engages in any of the prohibited acts as prescribed in the preceding paragraph, the Company may, without prior notice to the Participant, disqualify the Participant from the Competition in which the Participant participates, temporarily suspend the Participant from using the service of the Company, withdraw the Participant’s membership, claim damages from the Participant or take any other measures deemed necessary by the Company.

Article 6. Change, Discontinuation or Termination of Provision of Services under These Terms

1.The Company may change or temporarily suspend the services provided by the Company under these Terms without prior notice to the members.
2.Upon one (1) month prior notice to the members, the Company may suspend for a long period of time or terminate the services provided by the Company under these Terms.
3.The Company shall not be liable for any results or damage arising from the measures taken by the Company under this Article.

Article 7. Modification of Terms

1.The Company may modify, add or delete any provisions of these Terms from time to time without the approval of the members.

Enforced on April 1, 2018

評価関数 

精度評価には、評価関数「条件付きPrecision」を使用します(下式参照)。 この関数はモデルの予測精度の”良さ”を表すため、大きい値であるほど優れています。


最終順位の決定 

1. コンペ最終日までの評価(暫定評価)は評価用データセットの一部で評価し、コンペ終了後の評価(最終評価)は評価用データセットの残りの部分で評価します(※スコアボードはコンペ終了時に自動的に最終評価に切り替わり、それを元に最終順位を決定します。このため、開催中と終了後では順位が大きく変動する場合もあります。)。

2. 評価指標が、タイ(同値)の場合は、早い日時でご応募いただいた参加者を上位とします。 

3. 順位確定の際に下記の情報を提出していただきます。 

 ・予測モデルのソースコード
 ・学習済モデル
 ・予測結果の再現の為の手順書(前処理部分、学習部分、予測部分が分かるよう明記)
 ・実行環境(OSのバージョン、使用ソフトウェア及び解析手法)
 ・乱数シード(Random Forest等の乱数を利用した手法の場合)
 ・各説明変数の予測モデルへの寄与度(寄与度の算出が可能な手法を用いた場合)
 ・データの解釈、工夫点、モデリングから得られる示唆等 

4. 再現性検証期間中、入賞候補者及び、その提出モデルが下記いずれかに該当する場合は懸賞の獲得資格を失います。 

 ・事務局からの手続き上の連絡・要求に対して指定された期限内に対応しない
 ・参加条件やルールを満たしていない
 ・モデルの予測結果を再現できない
 ・新しい画像に対して予測できない

1ユーザにつき1アカウント

 コンテスト参加者は1人につき1アカウントまでです。ただし、アカウントが1つという条件の元であれば、チームでの参加も可能とします。
 チームで参加される場合は以下の手続きをお願いします。
     1. チームメンバーの全員がSIGNATEへユーザー登録を行う
     2. チーム代表者は自身と全チームメンバーのemailアドレスをお問い合わせフォームより送信

他参加者との情報共有は禁止

 コンテスト参加者が同じチーム以外の参加者と本コンテストの予測に関連するデータ・ソースコードを共有する行為は禁止です。

手動でのラベル付は禁止

 手動でラベル付けした結果を提出することは禁止します。

学習データの改ざんは禁止

 学習データのラベルを書き換えてモデルを学習することは禁止します。
 ただし、学習用画像データを画像処理手法により自動で水増しして学習用データとして利用することは可能です。

学習データは提供データのみ

 配布するデータ以外のデータを用いてモデルを学習することは禁止します。
 評価用データに対して擬似ラベリングを行い、評価用データを学習用として改めて利用することは禁止します。

APIの使用(Google Cloud Vision API等)は禁止

 ただし、 オープンソース(ソースが明確で、誰でもアクセスでき、かつ商用ではない) の学習済みモデルやライブラリ(tensorflow, chainer, keras, etc)は使用可能です。
 学習済みモデルを使用する際は、ソース(論文のリンク等)を明記してください。

分析ガイドライン

 1. 前処理、学習、予測がわかるようにそれぞれ分けて実装してください。

  ・例えばPythonで実装する場合、前処理はpreprocess.py、学習はtrain.py、予測はpredict.pyをそれぞれ実行すれば処理が進むように実装する。

 2. ソースコードとともに、学習済みモデルも提出してください。

  ・検収する際は学習済みモデルにより評価用データに対する予測値(応募用ファイル)を出力し、評価したときにスコアボードのスコアを再現できるかどうかを確認します。

 3. ソースコードを提出する前に、最終的に提出した分析結果の予測値とご自身の環境で出力した予測値とが一致するか確認してください。

  ・評価用データや学習済みモデルなどのパスが正しいか確認してください。
  ・処理を実行するためのコマンドが正しいか確認してください。

2018年08月24日(金) コンペティション開始
2018年10月26日(金) コンペティション終了
2018年11月02日(金) ソースコードの提出締め切り(※入賞候補連絡を受け取った方)

主催:

国立研究開発法人 海洋研究開発機構

協賛: