お知らせ

2020/12/10 17:30 「新型コロナウイルス関連ニュースデータ (covid-19_news.csv)」を新たに追加しました。

2020/12/07 19:01 「駅隣接関係データ (network.csv)」のファイルに不備がありましたため修正しました。
 ・ 駅"mkGW"と駅"rKwb"の隣接関係を追加


趣意
東日本旅客鉄道株式会社では、列車走行位置や列車混雑などのリアルタイム情報を活用した乗換経路検索機能の開発を進めてきました。現在も実施しているJR東日本アプリでの実証実験などで得たユーザの皆さまからのフィードバックでは、列車の「今」の状況を反映した乗換経路検索に一定の価値があることが分かっています。一方、ユーザの皆さまからは、「将来」の列車状況の予測に基づく“目的地への到着見込時刻”を知りたい、というご要望を多く頂いており、その実現に向けた検討を進めているところです。

そこで今回は、目的地への到着見込案内の実現に向けて、過去の列車運行実績データに基づいて将来の列車遅延を予測する「列車遅延予測」に関するコンペティションと、列車の運転見合わせが発生した際の「異常時情報提供」に関するアイデアソンを開催いたします。


課題
コンペティション形式とアイデアソン形式の2つの課題をご用意しています。いずれか1つのみの参加も可能です。

課題① 列車遅延予測(コンペティション)
東日本旅客鉄道株式会社より提供された「運行実績データ」「運行情報データ」「駅接続関係データ」を活用して、様々な路線、駅区間、日月、時間帯で設定された予測区間における列車の遅延時間の予測にチャレンジしていただきます。

データ概要

データ種別 概要
運行実績データ  目的変数の遅延時間を含む列車の運行実績が記録されたデータ
運行情報データ  遅延原因を含む列車の運行情報が記録されたデータ
駅隣接関係データ  駅同士の隣接関係が記録されたデータ
新型コロナウイルス関連
ニュースデータ
 新型コロナウイルスに関連した
「緊急事態宣言」の発出・解除などのニュースデータ

予測対象の運行実績イメージ


評価用の運行実績データにおいては、上図のように遅延時間開示時間帯の後に、遅延時間が非開示である予測対象時間帯が記録されています。予測対象時間帯の遅延時刻を予測してください。
ただし、一部の駅については予測対象時間帯であっても予測対象外の場合があります。予測対象となる遅延実績の確認方法詳細はデータページをご覧ください。



課題② 異常時情報提供(アイデアソン)
列車の運転見合わせが発生した際に、鉄道利用者の皆さまにどのような情報をどのように提供すべきであるかについて、アイデアを募集します。
車両や信号設備などの故障、駅や線路での人身事故などによって発生する輸送障害は、鉄道を利用する皆さまに多大な影響を及ぼします。そのようなときに、運転再開を待つのか、迂回経路や代替交通手段を利用するのか、もしくは、移動をあきらめて別のことをするのか、など、利用者の皆さまが行動を決められるようにするための情報提供とはどのようなものでしょうか?
アイデアはちょっとしたものでも構いません。自由な発想でのアイデアを期待します。思いついたアイデアは、以下のディスカッションに投稿してください。

  • 「【アイデアソン】異常時に求められる情報提供はどのようなものか?」
  • 「【アイデアソン】不確定要素の多い異常時の復旧見込をどのように情報提供すべきか?」


なお、アイデアソンでは、JR東日本とSIGNATEの本コンペティション担当者も議論に参加する予定です。

課題① 列車遅延予測(コンペティション)

評価関数
・精度は、評価データの実測値と予測値の差を誤差と定義し、評価期間中の「mean absolute error(MAE:平均絶対誤差)」により評価します。
・評価値は0以上の値をとり、精度が高いほど小さな値となります。


※リーダーボードに表示されているベンチマークは、各評価期間における直前の停車駅での遅延時間(直前の情報がない場合は0)をそのまま引き継いで予測値とした場合のスコアです。

入賞者の決定
1.コンテスト最終日までの評価(暫定評価)は評価用データセットの一部で評価し、コンテスト終了後の評価(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。
リーダーボードはコンテスト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.スコアが同値の場合は、早い日時でご応募いただいた参加者を上位とします。

3.最終順位が上位の方を入賞候補者とし、事務局から連絡いたします。

4.事務局での経済的負担や、権利侵害がないことを保証いただくことを条件に、入賞候補者には以下を提出していただきます。
 ・モデルのソースコード
 ・学習済モデル
 ・ソースコードの説明書(前処理部分、学習部分、推論部分が分かるように明記。提供データ以外のデータを利用した場合は、そのソース(データの所在、論文のリンク等)も明記)
 ・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)
 ・データの解釈、工夫点、モデリングから得られる示唆等
 ・乱数を利用した手法を用いた場合は、乱数シード等

5.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入賞資格を失います。
 ・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
 ・プログラムが動作しない
 ・学習済モデルから出力されるスコアと最終評価スコアが一致しない
 ・新しいデータに対して予測できない
 ・その他、事務局が不当と判断した場合

6.再現性を確認できた方から入賞者を選定します。


課題② 異常時情報提供(アイデアソン)

コンペティション期間全体を通して、最も優れたアイデア、議論を投稿していただいたと審査員(東日本旅客鉄道から数名)が判断した1名に対して、アイデアソン課題の入賞報酬を授与いたします。

システムの利用
・課題①における予測結果の1日の投稿回数の上限は5回です。
・1参加者につき1アカウントが必要です。1人で複数アカウントを利用、1アカウントを複数人で共有することは禁止します。
・チームでの参加を希望する場合は、必ずこちらをご一読の上、「チーム作成」ボタンからチームを作成ください。(作成期限:2021/1/7、チームリーダー含めて最大5人)

心構え
・企業課題の達成、社会問題の解決、研究成果の共有等、大前提となる目的に合わせ、実用性を意識したアプローチで臨んでください。
・特に運用性・拡張性を鑑みた実装を期待します。すなわち、提供データのみを利用し、機械的・自動的な処理に基づく学習・推論を前提とし、人間の判断に依存しない処理フローを期待します。

情報の取り扱い
・配布データを使用して作成した分析結果(ソースコード、アプローチ、戦略等)の公開、他者(同じチームを除く)への共有は禁止します。
・ただし、本コンペのフォーラムで、全ての参加者に対して公開する場合に限り、共有可能です。

データの利用
・配布するデータ以外のデータを利用(学習・予測)することは禁止します。

実装方法
・モデルの学習に利用するツールは、オープン且つ無料なもの(python, R 等)に限定します。
・ソースコードは、以下のように、前処理、学習、予測、の3つに分け、それぞれを実行すれば処理が進むように実装してください。

 ①Preprocessing
  提供データを読み込み、データに前処理を施し、モデルに入力が可能な状態でファイル出力するモジュール。
  get_train_dataやget_test_dataのように、学習用と評価用を分けて、前処理を行う関数を定義してください。
 ②Learning
  ①で作成したファイルを読み込み、モデルを学習するモジュール。学習済みモデルや特徴量、クロスバリデーションの評価結果を出力する関数も定義してください。
 ③Predicting
  ①で作成したテストデータ及び②で作成したモデルを読み込み、予測結果をファイルとして出力するモジュール。

Disclosure policy

As a general rule, in accordance with Article 4, Paragraph 1 of the terms of participation, diclosing any contents such as insights and deliverables transmitted through the information or data provided by our company in relation to this competition is not permitted, however, only after the completion of this competition and for non-commercial purposes, it will be possible to disclose the contents within the score of the table below
Model *1
Private
Analysis results *2
Private
Public : Posting to social media sites, blogs and source repositories, and citing to papers
Restricted : Using in a limited range from research, education to seminars, where many unspecified people cannot access
*1 Execution unit source code and learned models
*2 The insights obtained using the information and data provided, or the solutions including scripts and processed data such as summary statistics

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, analysis and prediction model, algorithm, source code and documentations for the model reproducibility, 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.Participants shall treat any information, data, or such contents as insights and deliverables transmitted through the service where 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
Last updated on January 18, 2019