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ASH-SuperUser / tlsotp

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Zero-dependency Python library for context-aware one-time passwords — bind OTPs to time, GPS location & optional passphrase, with drift tolerance, versioned algorithms, and TLSOTP:// URIs. A flexible, non-RFC alternative to TOTP.

python security otp authentication python-library password totp hotp hmac location-based mfa 2fa otp-generator security-testing otp-library time-based security-research otp-verification mfa-authenticator tlsotp
  • Updated Oct 26, 2026
  • Python

WJLGraph / Collaborative_-Filtering

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【协同过滤推荐算法 | UserCF/ItemCF 实现】 搞定 UserCF+ItemCF 协同过滤推荐算法～ 数据集：（本人懒癌首选10标签/4w条）：https://tianchi.aliyun.com/dataset/216549 备选数据集（30 + 标签 / 10 万条）：https://tianchi.aliyun.com/dataset/215680 .核心：行为加权（pv/fav/cart/buy）→ 余弦相似度 → KNN 邻居 → Top-N → 离线评估，Precision 0.96 / 0.99、覆盖率 1.0，附 12 张可视化与双算法流程图，并落地「臻享云牧」云养殖平台。基于天池真实数据集。

python scikit-learn pandas data-visualization collaborative-filtering recommender-system cosine-similarity recommender-systems knn itemcf time-based usercf top-n-recommendations user-based offline-evaluation tianchi-dataset
  • Updated Feb 1, 2026
  • Python

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