<Gobang Master>PRIVACY POLICY

THIS IS THE PRIVACY POLICY FOR Gobang Master . According to the General Data Protection Regulation (GDPR) (EU) 2016/679.

Shifeng (Shenzhen) Network Technology Co., Ltd. has adopted this privacy policy (“Privacy Policy”) to explain how Shifeng (Shenzhen) Network Technology Co., Ltd. collects, stores, and uses the information collected in connection with Shifeng (Shenzhen) Network Technology Co., Ltd.’s Services. BY INSTALLING, USING, REGISTERING TO OR OTHERWISE ACCESSING THE SERVICES, YOU AGREE TO THIS PRIVACY POLICY AND GIVE AN EXPLICIT AND INFORMED CONSENT TO THE PROCESSING OF YOUR PERSONAL DATA IN ACCORDANCE WITH THIS PRIVACY POLICY. IF YOU DO NOT AGREE TO THIS PRIVACY POLICY, PLEASE DO NOT INSTALL, USE, REGISTER TO OR OTHERWISE ACCESS THE SERVICES. Shifeng (Shenzhen) Network Technology Co., Ltd. reserves the right to modify this Privacy Policy at reasonable times, so please review it frequently. If Shifeng (Shenzhen) Network Technology Co., Ltd. makes material or significant changes to this Privacy Policy, Shifeng (Shenzhen) Network Technology Co., Ltd. may post a notice on Shifeng (Shenzhen) Network Technology Co., Ltd.‘s website along with the updated Privacy Policy. Your continued use of Services will signify your acceptance of the changes to this Privacy Policy.

Non-personal data

For purposes of this Privacy Policy, “non-personal data” means information that does not directly identify you. The types of non-personal data Shifeng (Shenzhen) Network Technology Co., Ltd. may collect and use include, but are not limited to: application properties, including, but not limited to application name, package name and icon installed on your device. Your checkin (include like, recommendation) of a game will be disclosed to all Shifeng (Shenzhen) Network Technology Co., Ltd. users.

The data we collect depends on the context of your interactions with us, the choices you make, including your privacy settings, and the products and features you use. The data we collect can include SDK/API/JS code version, browser, Internet service provider, IP address, platform, timestamp, application identifier, application version, application distribution channel, independent deice identifier, iOS ad identifier (IDFA), Android ad master identifier, network card (MAC) address, and international mobile device identification code (IMEI) The equipment model, the terminal manufacturer, the terminal device operating system version, the session start / stop time, the location of the language, the time zone and the network state (WiFi and so on), the hard disk, the CPU, and the battery use, etc.

Shifeng (Shenzhen) Network Technology Co., Ltd. may use and disclose to Shifeng (Shenzhen) Network Technology Co., Ltd.’s partners and contractors the collected non-personal data for purposes of analyzing usage of the Services, investigate, prevent or take action regarding unauthorized use of the services to further develop the Services and other Shifeng (Shenzhen) Network Technology Co., Ltd. services and products.

Use of Personal Data

Personal information collected by Shifeng (Shenzhen) Network Technology Co., Ltd. is information voluntarily provided to us by you when you create your account or change your account information. The information includes your game checkins, likes, dislikes, recommendations and messages.

Shifeng (Shenzhen) Network Technology Co., Ltd. may use collected personal data for purposes of analyzing usage of the Services, providing customer and technical support, managing and providing Services (including managing advertisement serving) and to further develop the Services and other Shifeng (Shenzhen) Network Technology Co., Ltd. services and products. Shifeng (Shenzhen) Network Technology Co., Ltd. may combine non-personal data with personal data. But unless the Law forces us, we will not share any personal data with any unaffiliated third party for any purpose…ever…

The personal data and information includes:

Your mobile device’s unique identifier (UDID)

Your email address used to login the social network

In-game transaction identifiers and purchases

Your device types and its OS version

The local language and country settings on your device

Disclosure and Transfer of Personal Data

Shifeng (Shenzhen) Network Technology Co., Ltd. collects and processes personal data on a voluntary basis and it is not in the business of selling your personal data to third parties. Personal data may, however, occasionally be disclosed in accordance with applicable legislation and this Privacy Policy.

Shifeng (Shenzhen) Network Technology Co., Ltd. may disclose your personal data to third parties as required by law enforcement or other government officials in connection with an investigation of fraud, intellectual property infringements, or other activity that is illegal or may expose you or Shifeng (Shenzhen) Network Technology Co., Ltd. to legal liability.

Shifeng (Shenzhen) Network Technology Co., Ltd. may also disclose your personal data to third parties when Shifeng (Shenzhen) Network Technology Co., Ltd. has a reason to believe that a disclosure is necessary to address potential or actual injury or interference with Shifeng (Shenzhen) Network Technology Co., Ltd.’s rights, property, operations, users or others who may be harmed or may suffer loss or damage, or Shifeng (Shenzhen) Network Technology Co., Ltd. Shifeng (Shenzhen) Network Technology Co., Ltd. believes that such disclosure is necessary to protect Shifeng (Shenzhen) Network Technology Co., Ltd.’s rights, combat fraud and/or comply with a judicial proceeding, court order, or legal process served on Shifeng (Shenzhen) Network Technology Co., Ltd… To the extent permitted by applicable law, Shifeng (Shenzhen) Network Technology Co., Ltd. will make reasonable efforts to notify you of such disclosure through Shifeng (Shenzhen) Network Technology Co., Ltd. ‘s website or in another reasonable manner.

Besides, If Shifeng (Shenzhen) Network Technology Co., Ltd. becomes involved in a merger, acquisition, or any form of sale of some or all of its assets, we will provide notice before personal information is transferred and becomes subject to a different privacy policy.

Safeguards

Shifeng (Shenzhen) Network Technology Co., Ltd. follows generally accepted industry standards and maintains reasonable safeguards to attempt to ensure the security, integrity and privacy of the information in Shifeng (Shenzhen) Network Technology Co., Ltd.’s possession. Only those persons with a need to process your personal data in connection with the fulfillment of their tasks in accordance with the purposes of this Privacy Policy and for the purposes of performing technical maintenance, have access to your personal data in Shifeng (Shenzhen) Network Technology Co., Ltd.’s possession. Personal data collected by Shifeng (Shenzhen) Network Technology Co., Ltd. is stored in secure operating environments that are not available to the public. To prevent unauthorized on-line access to personal data, Shifeng (Shenzhen) Network Technology Co., Ltd. maintains personal data behind a firewall-protected server. However, no system can be 100% secure and there is the possibility that despite Shifeng (Shenzhen) Network Technology Co., Ltd.’s reasonable efforts, there could be unauthorized access to your personal data. By using the Services, you assume this risk.

Other

Please be aware of the open nature of certain social networking and other open features of the Services Shifeng (Shenzhen) Network Technology Co., Ltd. may make available to you. You may choose to disclose data about yourself in the course of contributing user generated content to the Services. Any data that you disclose in any of these forums, blogs, chats or the like is public information, and there is no expectation of privacy or confidentiality. Shifeng (Shenzhen) Network Technology Co., Ltd. is not responsible for any personal data you choose to make public in any of these forums.

If you are under 15 years of age or a minor in your country of residence, please ask your legal guardian’s permission to use or access the Services. Shifeng (Shenzhen) Network Technology Co., Ltd. takes children’s privacy seriously, and encourages parents and/or guardians to play an active role in their children’s online experience at all times. Shifeng (Shenzhen) Network Technology Co., Ltd. does not knowingly collect any personal information from children below the aforementioned age and if Shifeng (Shenzhen) Network Technology Co., Ltd. learns that Shifeng (Shenzhen) Network Technology Co., Ltd. has inadvertently gathered personal data from children under the aforementioned age, Shifeng (Shenzhen) Network Technology Co., Ltd. will take reasonable measures to promptly erase such personal data from Shifeng (Shenzhen) Network Technology Co., Ltd.’s records.

Shifeng (Shenzhen) Network Technology Co., Ltd. may store and/or transfer your personal data to its affiliates and partners in and outside of EU/EEA member states and the United States in accordance with mandatory legislation and this Privacy Policy. Shifeng (Shenzhen) Network Technology Co., Ltd. may disclose your personal data to third parties in connection with a corporate merger, consolidation, restructuring, the sale of substantially all of Shifeng (Shenzhen) Network Technology Co., Ltd.’s stock and/or assets or other corporate change, including, without limitation, during the course of any due diligence process provided, however, that this Privacy Policy shall continue to govern such personal data.

Shifeng (Shenzhen) Network Technology Co., Ltd. regularly reviews its compliance with this Privacy Policy. If Shifeng (Shenzhen) Network Technology Co., Ltd. receives a formal written complaint from you, it is Shifeng (Shenzhen) Network Technology Co., Ltd.’s policy to attempt to contact you directly to address any of your concerns. Shifeng (Shenzhen) Network Technology Co., Ltd. will cooperate with the appropriate governmental authorities, including data protection authorities, to resolve any complaints regarding the collection, use, transfer or disclosure of personal data that cannot be amicably resolved between you and Shifeng (Shenzhen) Network Technology Co., Ltd…

Legal Basis for Data Processing

We process Personal Data for the purposes set out in this Privacy Policy, as described above. Our legal basis to process personal data includes processing that is: necessary for the performance of the contract with you (for example, to provide you with the services you request and to identify and authenticate you so you may use the Sites); necessary to comply with legal requirements (for example, to comply with applicable accounting rules and to make mandatory disclosures to law enforcement); necessary for our legitimate interests (for example, to manage our relationship with you, to ensure the security of our services, to communicate with you about our products and services); and based on consent by our customers (for example, to place certain cookies and to share your information with third parties for advertising purposes).

International Transfers of Personal Data

Our business may require us to transfer your Personal Data to countries outside of the European Economic Area (“EEA”), including to countries such as the People’s Republic of China or Singapore. We take appropriate steps to ensure that recipients of your Personal Data are bound to duties of confidentiality and we implement measures such as standard contractual clauses. A copy of those clauses can be obtained by contacting our Help Center.

Your Rights

Subject to limitations in applicable law, you are entitled to object to or request the restriction of processing of your Personal Data, and to request access to, rectification, erasure and portability of your own Personal Data.

Where the use of your information is based on consent, you can withdraw this consent at any time without affecting the lawfulness of processing based on consent before its withdrawal.

If you are aware of changes or inaccuracies in your information, you should inform us of such changes so that our records may be updated or corrected. You may lodge a complaint with a supervisory authority if you consider that our processing of your Personal Data infringes applicable law.

We retain your Personal Data as long as needed to provide services or products to you, or as required or permitted by applicable laws, such as tax and accounting laws.

变分模态分解(Variational Mode Decomposition, VMD)是一种强大的非线性、无参数信号处理技术,专门用于复杂非平稳信号的分析与分解。它由Eckart Dietz和Herbert Krim于2011年提出,主要针对传统傅立叶变换在处理非平稳信号时的不足。VMD的核心思想是将复杂信号分解为一系列模态函数(即固有模态函数,IMFs),每个IMF具有独特的频率成分和局部特性。这一过程与小波分析或经验模态分解(EMD)类似,但VMD通过变分优化框架显著提升了分解的稳定性和准确性。 在MATLAB环境中实现VMD,可以帮助我们更好地理解和应用这一技术。其核心算法主要包括以下步骤:首先进行初始化,设定模态数并为每个模态分配初始频率估计;接着采用交替最小二乘法,通过交替最小化残差平方和以及模态频率的离散时间傅立叶变换(DTFT)约束,更新每个模态函数和中心频率;最后通过迭代优化,在每次迭代中优化所有IMF的幅度和相位,直至满足停止条件(如达到预设迭代次数或残差平方和小于阈值)。 MATLAB中的VMD实现通常包括以下部分:数据预处理,如对原始信号进行归一化或去除直流偏置,以简化后续处理;定义VMD结构,设置模态数、迭代次数和约束参数等;VMD算法主体,包含初始化、交替最小二乘法和迭代优化过程;以及后处理,对分解结果进行评估和可视化,例如计算每个模态的频谱特性,绘制IMF的时频分布图。如果提供了一个包含VMD算法的压缩包文件,其中的“VMD”可能是MATLAB代码文件或完整的项目文件夹,可能包含主程序、函数库、示例数据和结果可视化脚本。通过运行这些代码,可以直观地看到VMD如何将复杂信号分解为独立模态,并理解每个模态的物理意义。 VMD在多个领域具有广泛的应用,包括信号处理(如声学、振动、生物医学信号分析)、图像处理(如图像去噪、特征提取)、金融时间序列分析(识
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