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    Terms of Use

    Privacy policy

    Privacy Policy

    Announcement Date: 2021.05.24.

     

    DACON places user privacy protection as the top priority among management factors.  DACON Co., Ltd. (hereinafter 'Dacon' or 'Company') strictly complies with domestic personal information protection laws such as the Act on Promotion of Information and Communications Network Utilization and Information Protection (hereinafter 'Information and Communications Network Act') and the Personal Information Protection Act from service planning to termination.


    1. Significance of Privacy Policy

    We provide transparent information related to what information DACON collects, how the collected information is used, with whom it is shared ('consigned or provided') as necessary, and when and how the information that has achieved the purpose of use is destroyed, etc. 

    As a subject of information, users are informed of what rights they have in relation to their personal information and how and by what methods and procedures they can exercise them.  In addition, it also provides information on what rights a legal representative (parents, etc.) can exercise to protect the personal information of children under the age of 14.

    In the event of a personal information breach, we will inform you of whom to contact and how to get help in order to prevent further damage and repair damage that has already occurred.

    Above all, it is a means of guaranteeing the user's right to self-determination of personal information by stipulating the relationship of rights and obligations between DACON and users in relation to personal information.


    2. Purpose of collection and use of personal information

    DACON Co., Ltd. (hereinafter the “Company”) collects personal information for the following purposes, and does not use the collected personal information for purposes other than the following purposes.


    1) User management

    Identification according to the use of membership service, confirmation of one's intention, response to customer inquiries, introduction of new information and delivery of notices


    2) Implementation of contract for service provision and settlement of fees for service provision

    Identity verification, personal identification for job matching and content provision, mutual communication between users, purchase and payment of fees, sending of goods and evidence, prevention of illegal use and prevention of unauthorized use


    3) Service development and marketing/advertising utilization

    Provision of customized services, service guidance and use solicitation, identification of statistics and access frequency for service improvement and new service development, advertisements according to statistical characteristics, event information and participation opportunities


    4) Statistical analysis to identify employment and employment trends, data analysis for service advancement


    3. Items of personal information to be collected and methods of collection

    a.  Items of personal information to be collected


    1) Items collected when signing up for membership

     Required items: ID, password, name, nickname, email

     Optional items: mobile phone number, date of birth, country, occupation

    Additional personal information may be collected only for users of the service in the process of using individual services within DACON, and paying prizes and products. In the case of additional personal information collection, at the time of collection of the personal information, the user is informed about the items of personal information to be collected, the purpose of collection and use of personal information, and the period of storage of personal information, and consent is obtained.


    2)  Items collected when registering for Daycon Career Pool

    Required items: name, email, mobile phone number, work experience, new/experienced if applicable, available programming languages ​​and experience, 1 link to project or competition code, intent to find a job, desired work area

    Optional items: Links to project or competition codes (additional), other awards, links to privately operated sites (GitHub, Linkedin, etc.), video, ppt

     

    3) Items collected when using mobile services

    Due to the nature of the mobile service, device model information may be collected, but it will be in a form that cannot identify individuals.


    4) Items collected when compensation is paid

    Required items: Account information (bank, account number), resident registration number (based: Income Tax Act)


    5) Collected items for calculating the company's fee upon successful recruitment

    Required items: Salary information of successful applicants

    6) Items automatically collected during service use or business processing

    IP address, cookie, visit date and time, service use record, bad use record, advertisement ID, access environment


    b.  How to collect personal information

    1) When a user agrees to the collection of personal information and directly inputs information during membership registration and service use, the personal information is collected


    2) Collected by methods such as registration of DACON Career service , company fee settlement, event application, customer center inquiry, etc.


    3) In the process of inquiry through the operator, personal information of users is collected through web pages, e-mails, faxes, telephones, etc.


    4) Personal information is collected in writing at offline events, seminars, awards ceremonies, etc.


    5) You may receive personal information from an external company or organization affiliated with DACON, and in this case, it will be provided to DACON after obtaining consent from the user to provide personal information from the affiliated company in accordance with the Information and Communications Network Act.


    6) Generated information such as device information may be automatically generated and collected during the process of using the PC web or mobile web/app.


    4. Use of collected personal information

    We use personal information only for the following purposes, such as user management of DACON and all DACON-related services (including mobile web/app), service development, provision and improvement, and establishment of a safe internet environment.


    Personal information is used for user management, such as confirmation of intention to join membership, identification of users and legal representatives, discernment of users, and confirmation of intention to withdraw from membership.


    Personal information is used for discovery and improvement of existing services in addition to providing existing services such as content (including advertisements), new service elements such as demographic analysis, analysis of service visits and usage records, formation of relationships between users based on personal information and interests, and provision of customized services based on acquaintances and interests, etc.


    Notices such as restrictions on the use of users who violate laws and regulations and terms of use, prevention and sanctions against acts that impede the smooth operation of the service, including illegal use, account theft and illegal transaction prevention, and amendment of terms and conditions Personal information is used for user protection and service operation, such as delivery, record keeping for dispute resolution, and complaint handling.


    Personal information is used for identity authentication, purchase and payment of fees, and delivery of products and services in accordance with the provision of paid services.


    Personal information is used for marketing and promotion purposes, such as providing event information and participation opportunities, and providing advertising information.


    Personal information is used for service usage history and access frequency analysis, service usage statistics, service analysis and customized service provision according to statistics and advertisements.


    In terms of security, privacy, and safety, personal information is used to establish a service use environment that users can use with confidence.

     

    5. Provision of personal information, entrustment of processing, and overseas transfer

    In principle, the “company” does not provide personal information to the outside without user consent.


    The “company” does not provide personal information to the outside without the user's prior consent. However, if the user gives permission for a fair price, if he/she directly consents to the provision of personal information, and if there is an obligation to submit personal information to DACON in accordance with relevant laws, and if there is an imminent risk to the life or safety of the user, we provide personal information only when it has been confirmed and to resolve it.


    The "Company" uses personal information within the scope notified in 1. Purpose of collection and use of personal information, and does not use it beyond the scope without the user's prior consent.


    a. processing consignment

    The "company" entrusts personal information as follows to improve service, and in accordance with relevant laws and regulations, it stipulates necessary matters so that personal information can be safely managed during consignment contracts. If any changes occur, we will notify you through the notice or privacy policy.


    Consigned business details

    Income reporting agency for the winners of the GNU Tax Accounting Contest

    Mailchimp newsletter delivery agency


    b. In the following cases, personal information may be provided or used through reasonable procedures.

    1) Provision of personal information to ‘corporate users’ (recruitment requesting companies)

    The personal information of registered users of the DACON Career service can be viewed by a large number of unspecified corporate users who have a request for recruitment of the DACON Career service

    - Persons to whom personal information is provided: corporate users

    - Purpose of use of personal information by the person receiving personal information: Confirmation of suitable person for employment

    - Items of personal information to be provided: Items collected when registering for the DACON Career service 

    - Period of retention and use of personal information by the person receiving personal information: Upon termination of the partnership contract


    2) When applying for recruitment

    When a user applies for the recruitment service through DACON, personal information such as the user's contact information is provided to the recruitment request 'corporate user' in order to proceed with the recruitment process.


    3) Sales, M&A

    If the rights and obligations of the service provider are succeeded or transferred, it must be notified in advance and the user's right to withdraw consent to personal information is given.


    4) However, exceptions are made in the following cases.

    When there is a request from an investigation agency in accordance with the relevant laws and regulations or in accordance with the procedures and methods stipulated in the laws for investigation 


    c. Personal information of users is provided or stored abroad only in the following cases.

    1) Overseas corporate user

    There are overseas companies that provide personal information of users who want to work abroad, and any changes through partnerships will be notified in advance. In this case, we will go through the process of asking for individual consent, and without consent, we will not provide it.


    - Recipient of personal information: Overseas corporate user

    - Purpose of use of personal information by recipients of personal information: Confirmation of suitable persons for overseas employment

    - Items of personal information provided: Items collected when registering for the DACON Career service

    - Providing method: Provided through DACON Career service DB

    - Period of retention and use of personal information by the person receiving personal information: At the end of the partnership agreement


    6. Period of retention and use of personal information

    The "company" will retain and use the user's personal information only during the period of providing services from membership registration and Career pool registration. If you withdraw your consent to the collection and use of personal information, the personal information will be destroyed without delay when the purpose of collection and use is achieved or the period of use has expired.

    However, in the following cases, they are retained for the specified reason and period, respectively.

    1) If it is necessary to preserve in accordance with the relevant laws such as the Commercial Act, we retain transaction details and minimum basic information for the retention period stipulated by the laws. In this case, the company will only use the stored information for the purpose of storage.

    ① Records on contract or subscription withdrawal, etc.: 5 years

    ② Records on payment and supply of goods: 5 years

    ③ Records on consumer complaints or dispute resolution: 3 years

    ④ Records of illegal use, etc.: 5 years

    ⑤ Website visit records (login records, access records): 1 year


    2) In principle, when requesting membership withdrawal, the company destroys personal information without delay at the same time as the withdrawal process. However, when a user with a history of support through the company withdraws, the company retains personal information related to support and support for 5 years after withdrawal for the following reasons.

    ① Prevention of participation in the company's illegal use without sharing the fact of employment through collusion with the company even after employment has been completed through the company.

    ② It is necessary to keep the member's support information in order to complete the contract with the company regarding the company's service provision


    3) If the retention period is notified in advance and the retention period has not elapsed or if consent is obtained individually, the information is retained for the agreed period.

     

    4) For personal information protection, if a user does not use "DACON" for one year, email (or account information set by the user through linkage with external services such as Facebook) is separated into a "dormant account" and stop using the account. In this case, the "company" shall notify the fact in advance by one of e-mail, written, or SMS 30 days prior to the "expected date of processing of dormant accounts", and if the user directly confirms his/her identity and expresses his/her intention to use the "website" again, the "website" may be used.


    7. Procedure for destruction of personal information and method of destruction

    In principle, the "company" destroys the user's personal information without delay upon withdrawal from membership. However, if the user has obtained separate consent for the storage period of personal information, or if the law imposes an obligation to keep information for a certain period of time, personal information will be safely stored for that period.

    Illegal use records such as illegal registration and disciplinary records are kept for 2 years from the time of collection to prevent illegal registration or use and are destroyed.


    Personal information that has achieved the purpose of collection and use of personal information, such as membership withdrawal, service termination, and the arrival of the personal information retention period agreed by users, is destroyed in a non-renewable way Information for which preservation obligations are imposed by law will also be destroyed in a way that cannot be reproduced without delay after the relevant period has elapsed. In the case of electronic files, they are safely deleted so that they cannot be recovered or reproduced, and printed materials are destroyed by shredding or incineration.


    The “company” separately stores and manages the personal information of members who have not used the service for one year in accordance with the “personal information validity period”.


    1) Destruction procedure

    The information entered by the user for membership registration, etc. is transferred to a separate DB (separate filing cabinet in the case of paper) after the purpose is achieved, and is destroyed after being stored for a certain period of time according to the internal policy and other relevant laws and regulations. Personal information transferred to a separate DB will not be used for any other purpose except in cases where it is required by law.


    2) Destruction method

    Personal information printed on paper is shredded with a shredder or destroyed through incineration. Personal information stored in electronic file format is deleted using a technical method that cannot reproduce the record.


    8. Matters concerning the installation, operation and rejection of the automatic personal information collection device

    1) What is a cookie?

    It is a small text file that the server used to operate the website sends to the user's browser and is stored on the user's hard disk.

    2) Purpose of use of cookie

    The information collected by the "company" through cookies is in ‘2. Items of personal information to be collected and methods of collection’ and it is not used for purposes other than the '1. Purpose of Collection and Use of Personal Information'.


    3) Cookie installation, operation and rejection

    Users have the option of installing cookies. By setting options in their web browser, they can accept all cookies, check each time when a cookie is saved, or refuse to save all cookies. To specify whether to allow the installation of cookies (for Internet Explorer) ex) Tools at the top of the web browser > Internet Options > Personal Information

    However, if you refuse to store cookies, there may be difficulties in using some services that require login.


    9. Technical and administrative protection measures for personal information

    1) Encryption of personal information

    User’s personal information is protected by a password, and files and other data are protected through a separate security function through encryption or file lock function.


    2) Countermeasures against hacking

    All data is kept in a highly secure data center. Access to personal information data is restricted by dividing usage rights, and it is not stored on a personal PC or in an offline space where external intrusion is a concern.


    3) Training of personal information processing staff

    Personal information-related staff consists of a minimum number of personnel, and regular training is provided on acquisition of new security technologies and obligations to protect personal information, and security is maintained through internal audit procedures.


    4) Personal ID and password management

    The "company" is doing its best to protect users' personal information. However, we are not responsible for any problems caused by leakage of personal information such as e-mail (or account information set by the user through linkage with external services such as Facebook) and passwords due to the user's personal negligence or the basic internet risks.


    10. Link

    The "website" may contain various banners and links. In many cases, it is linked to the pages of other websites, and this is a measure to reveal the source of the content provided by or through a contractual relationship with the advertiser. If you click a link included in the "website" to move to a page on another website, the privacy policy of that website is irrelevant to the "website", so please review the policy of the newly visited website.


    11. Children's Privacy

    The "company" does not accept '' for children under the age of 14 as it judges that children under the age of 14 cannot search for jobs when registering for  Career pool service.


    12. User’s right and how to exercise them

    User can view or edit their personal information at any time at ‘DACON Home > Profile’.

    User can withdraw their consent to the collection and use of personal information at any time through ‘withdrawal of membership’.


    In the case of children under the age of 14, the legal representative has the right to inquire or correct the child's personal information, and the right to withdraw consent to collection and use.


    Users and their legal representatives can view, disclose, process, modify, or delete registered information of themselves or the minor’s at any time. Users and their legal representatives can handle personal information inquiry/modification/subscription cancellation (withdrawal of consent) through 'My Account Management'.



    If a user requests correction of errors in personal information, the personal information will not be used or provided until the correction is completed. In addition, if incorrect personal information has already been provided to a third party, we will notify the third party the result of the correction without delay so that the correction can be made.


    The "Company" does not cancel or delete personal information at the request of the user in '6. Period of retention and use of personal information is processed as specified in the 'Period of Retention and Use of Personal Information' and is processed so that it cannot be viewed or used for other purposes

     

    13. Personal information processing department and civil service

    The "company" designates the personal information processing department and contact information as follows to protect users' personal information and handle personal information-related grievances.


    - Personal Information Processing Department: DACON Support Team dacon@dacon.io


    If you need advice on other personal information, you can contact the following organizations.

    - Personal Information Infringement Report Center: http://privacy.kisa.or.kr/ 118 without area code

    - Cyber Investigation Division, Supreme Prosecutors' Office: http://www.spo.go.kr/ 1301 without area code

    - National Police Agency Cyber Security Bureau: http://www.police.go.kr/ 182 without area code


    14. Obligation to notify before revision

    If there is a change in the personal information processing policy regarding the following matters, we will notify you in advance through the ‘Notice’ at least 7 days before the revision.


    1) Persons receiving personal information

    2) Purpose of use of personal information by the person receiving personal information

    3) Items of personal information to be provided

    4) Period of retention and use of personal information by the person receiving personal information

    5) The fact that the right to refuse consent and the details of the disadvantage exist and there is a disadvantage due to refusal of consent


    However, when a significant change in user rights occurs, such as a change in the items of personal information to be collected or the purpose of use, it is notified at least 30 days in advance, and user consent may be obtained again if necessary.

     

    Announcement Date: May 24, 2021

    Effective Date: May 31, 2021

    Consent to receive marketing information

    1. Promotional Information Usage


    a. DACON provides promotional information such as user-tailored services and product recommendations, various prize events, promotions,

    and competition announcements to users through email, postal mail, text messages (SMS or KakaoTalk Alert), push notifications, or phone calls


    b. Users may refuse marketing communications and can withdraw consent at any time.

    Refusing consent will not restrict access to DACON's core services.

    However, marketing information services such as discounts, event notifications, and personalized recommendations will be limited.


    2. Disadvantages of Non-Consent

    a. Under Article 22(5) of the Personal Information Protection Act, refusal of optional information consent does not affect service availability.

    b. However, marketing information services including discounts, events, and personalized recommendations will be limited


    3. Withdrawing Service Communication Consent

    a. To opt out of DACON's marketing communications, go to 'Home > Account Management Page > Marketing (Competitions, Education, etc.) Information Reception Consent (Optional)' at the bottom of the page

    b. Consent can be reinstated anytime through the same path ('Home > Account Management Page > Marketing (Competitions, Education, etc.) Information Reception Consent (Optional)’) for future marketing benefits.


    2021.05.25

    Smart facotry Product quality status classification AI online Hackathon

    Algorithm | Tabular | Smart Factory | LG Aimers | Classification | Macro F1 Score

    Practice
    Overview Data Code (share) Talk Leaderboard

    Setup D-0

     

    [Private 2위] catboost + optuna

    DM_MSI
    공동작성자
    2023.04.01 18:30 6,412 Views language
    comments 0

    Time 변수를 활용해서 5~6개의 파생변수를 만들었고, 마지막은 CatboostRegressor와 CatboostClassifier를 활용하여 각각 예측하고,
    비교한 후에 제품의 Spec에서 많이 벗어난 레이블을 변경하여 제출했습니다.
    Regressor는 Optuna를 적용했고, Classifier 같은 경우에는 Optuna를 적용했을 때 시간이 오래 걸려서 단순 Classifier로 진행했습니다.
    그리고 Overfitting을 막고자 Stratified K-fold(K=10)를 진행했습니다.

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