https://blog.bj-yan.top/en/categories/blog/ Recent content in blog on Bingjie's Blog https://blog.bj-yan.top/favicon.png https://blog.bj-yan.top/favicon.png Hugo -- gohugo.io en-US https://blog.bj-yan.top/en/p/blog-craft-beer/ Wed, 04 Jun 2025 00:43:10 +0800 https://blog.bj-yan.top/en/p/blog-craft-beer/ Starting from malt, hops, and yeast, this guide introduces common terms like ABV and IBU, covers styles such as Lager, Wheat, IPA, Stout, and Sour, and organizes an entry-level approach to ordering and tasting craft beer. https://blog.bj-yan.top/en/p/blog-tiktok-unlock/ Mon, 18 Mar 2024 13:30:36 +0800 https://blog.bj-yan.top/en/p/blog-tiktok-unlock/ Documenting attempts to use TikTok on iOS without removing the SIM card, including Shadowrocket proxy configuration, downloading and installing older app versions; this method is time-sensitive. https://blog.bj-yan.top/en/p/blog-dirichlet-distribution-in-federated-learning/ Tue, 22 Aug 2023 17:58:41 +0800 https://blog.bj-yan.top/en/p/blog-dirichlet-distribution-in-federated-learning/ Introduces the definition, concentration parameters, and statistical properties of the Dirichlet distribution, distinguishes between two directions of federated data partitioning, and provides a reproducible, complete NumPy implementation along with methods for experimental verification. https://blog.bj-yan.top/en/p/blog-efficiency-analysis-of-distributed-machine-learning/ Wed, 09 Aug 2023 00:54:19 +0800 https://blog.bj-yan.top/en/p/blog-efficiency-analysis-of-distributed-machine-learning/ Analyzing the stochastic runtime of synchronous, asynchronous, and K-worker SGD, and discussing the time to reach target accuracy and parallel speedup limits in conjunction with convergence bounds. https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-5/ Tue, 08 Aug 2023 15:04:00 +0800 https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-5/ Deriving non-convex stationary point bounds and strongly convex error bounds under full participation from FedAvg's local updates, distinguishing gradient noise, client drift, and sampling error, while discussing partial participation and heterogeneity corrections. https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-4/ Mon, 07 Aug 2023 15:03:00 +0800 https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-4/ Deriving strong convexity convergence bounds for synchronous, asynchronous, and K-Async SGD, clarifying assumptions of independent sampling, conditional unbiasedness, gradient staleness, and freshness probability. https://blog.bj-yan.top/en/p/blog-information-theory-for-privacy/ Fri, 28 Jul 2023 14:55:49 +0800 https://blog.bj-yan.top/en/p/blog-information-theory-for-privacy/ Starting from the attacker's observations and auxiliary information, this article introduces entropy, conditional mutual information, the data processing inequality, and Fano's inequality. It also uses randomized response to illustrate the connections and distinctions between information-theoretic privacy and differential privacy. https://blog.bj-yan.top/en/p/blog-privacy-leakage-in-deep-learning/ Fri, 28 Jul 2023 09:54:50 +0800 https://blog.bj-yan.top/en/p/blog-privacy-leakage-in-deep-learning/ Reviewing membership inference, attribute inference, model inversion, and training data extraction; deriving the recoverability of single-sample gradients; and discussing the applicability boundaries of federated learning, risk assessment, and various privacy-preserving techniques. https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-3/ Tue, 25 Jul 2023 15:03:00 +0800 https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-3/ Deriving strong convex error bounds and non-convex stationary point bounds for mini-batch SGD under assumptions of conditionally unbiased gradients and bounded variance, explaining the impact of step size and noise. https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-2/ Mon, 24 Jul 2023 15:02:00 +0800 https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-2/ Derive first-order method convergence bounds under smooth/non-smooth and convex/non-convex conditions, clarifying step sizes, output points, and iteration complexity. https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-1/ Sun, 23 Jul 2023 15:01:00 +0800 https://blog.bj-yan.top/en/p/blog-convergence-analysis-in-deep-learning-part-1/ Unify definitions and assumptions regarding convexity, strong convexity, smoothness, and stochastic gradients, and derive inequalities commonly used in convergence analysis. https://blog.bj-yan.top/en/p/blog-the-top-k-of-wechat-red-envelopes/ Sat, 08 Jul 2023 12:37:21 +0800 https://blog.bj-yan.top/en/p/blog-the-top-k-of-wechat-red-envelopes/ Simulating WeChat red envelope distribution with Python to compare the probability of entering the Top K based on different claiming orders, presenting simulation results while explaining model assumptions and limitations. https://blog.bj-yan.top/en/p/blog-using-zotero-and-notion-manage-your-papers-and-notes/ Wed, 28 Jun 2023 11:24:03 +0800 https://blog.bj-yan.top/en/p/blog-using-zotero-and-notion-manage-your-papers-and-notes/ Link your Zotero library with Notion notes using Notero. This guide covers Notion integration setup, database configuration, and plugin installation, along with a FAQ section. https://blog.bj-yan.top/en/p/blog-accelerating-federated-learning-simulation-using-mpi/ Tue, 21 Mar 2023 12:41:13 +0800 https://blog.bj-yan.top/en/p/blog-accelerating-federated-learning-simulation-using-mpi/ Building a federated learning simulator using mpi4py and PyTorch, covering server-client architecture, MPI execution flow, multi-process execution, and experimental performance. https://blog.bj-yan.top/en/p/blog-advantage-usage-for-gpt-3-5-turbo/ Thu, 02 Mar 2023 19:19:58 +0800 https://blog.bj-yan.top/en/p/blog-advantage-usage-for-gpt-3-5-turbo/ Documents the usage of the GPT-3.5 Turbo API in 2023, covering streaming output, temperature, top_p, and other parameters along with Python examples; content is time-sensitive. https://blog.bj-yan.top/en/p/blog-github-useless-tips/ Thu, 02 Mar 2023 17:05:24 +0800 https://blog.bj-yan.top/en/p/blog-github-useless-tips/ A collection of GitHub usage tips, including profile repositories, custom domains for GitHub Pages, write permissions for Actions, student benefits, and Emoji. https://blog.bj-yan.top/en/p/blog-public-release-of-ezkfg-v011/ Wed, 01 Mar 2023 22:05:34 +0800 https://blog.bj-yan.top/en/p/blog-public-release-of-ezkfg-v011/ Records the updates for the Python configuration tool ezkfg v0.1.1, introducing changes to the configuration loading interface, comparison behavior, and save functionality, along with a link to version differences. https://blog.bj-yan.top/en/p/blog-will-ai-replace-the-artists/ Mon, 12 Sep 2022 12:01:09 +0800 https://blog.bj-yan.top/en/p/blog-will-ai-replace-the-artists/ Combining the development of diffusion models and AI art, this article discusses which tasks in artistic creation might be automated, along with the capabilities, limitations, and the creator's technical role in image generation. https://blog.bj-yan.top/en/p/blog-diffusion-model-trial/ Sun, 11 Sep 2022 23:03:04 +0800 https://blog.bj-yan.top/en/p/blog-diffusion-model-trial/ Reviewing the basic concepts and development history of diffusion models, and recording trial experiences and generation results of image generation models such as Stable Diffusion and DALL·E. https://blog.bj-yan.top/en/p/blog-talk-about-the-open-source-environment-in-china/ Sun, 11 Sep 2022 13:44:15 +0800 https://blog.bj-yan.top/en/p/blog-talk-about-the-open-source-environment-in-china/ Discussing the domestic open-source environment from the perspective of individual developers and users, sharing views on the meaning of open source, project quality, community platforms, and participation experiences. https://blog.bj-yan.top/en/p/blog-ucas-course-schedule/ Fri, 26 Aug 2022 22:49:57 +0800 https://blog.bj-yan.top/en/p/blog-ucas-course-schedule/ A guide to exporting UCAS course schedules as ICS files and importing them into calendars, covering the course website, Tampermonkey plugins, Wakeup app, and solutions for iOS and Windows. https://blog.bj-yan.top/en/p/blog-ucas-ipv6-bypass/ Sun, 21 Aug 2022 09:44:53 +0800 https://blog.bj-yan.top/en/p/blog-ucas-ipv6-bypass/ Documents the practice of using IPv6 proxies in the UCAS campus network environment, covering IPv6 activation, proxy forwarding, DNS64 configuration, multi-device setup, and usage precautions. https://blog.bj-yan.top/en/p/blog-hcaptcha-test-time-augmentation-and-model-attack-defense/ Fri, 10 Jun 2022 14:28:03 +0800 https://blog.bj-yan.top/en/p/blog-hcaptcha-test-time-augmentation-and-model-attack-defense/ Discussing test-time augmentation, image denoising, and model attack/defense strategies in the context of hCaptcha image noise, while reflecting on the limitations of CAPTCHAs regarding robustness and user experience. https://blog.bj-yan.top/en/p/blog-project-ezkfg/ Tue, 17 May 2022 00:48:18 +0800 https://blog.bj-yan.top/en/p/blog-project-ezkfg/ Introduces the design and implementation of the Python configuration tool ezkfg, compares usage methods of argparse, configuration classes, and configuration files, and outlines project requirements and future plans. https://blog.bj-yan.top/en/p/blog-some-thoughts-on-schedule-management-software/ Thu, 12 May 2022 01:01:20 +0800 https://blog.bj-yan.top/en/p/blog-some-thoughts-on-schedule-management-software/ Reflecting on experiences with tools like Notes, TickTick, Sticky Notes, and Feishu, discussing recurring tasks, cross-device operations, and personal workflow needs. https://blog.bj-yan.top/en/p/blog-taichi-voxel-challenge-2022-pvz/ Wed, 11 May 2022 16:41:22 +0800 https://blog.bj-yan.top/en/p/blog-taichi-voxel-challenge-2022-pvz/ Sharing my Taichi Voxel Challenge 2022 Plants vs. Zombies voxel creation, breaking down the Peashooter structure, and documenting the modeling approach, code, and issues encountered during production. https://blog.bj-yan.top/en/p/blog-hcaptcha-seaplane/ Sun, 01 May 2022 23:35:46 +0800 https://blog.bj-yan.top/en/p/blog-hcaptcha-seaplane/ Records the training and testing practices for the hCaptcha seaplane recognition task, discussing sample annotation, overfitting issues, and the organization of the model training workflow. https://blog.bj-yan.top/en/p/blog-taichi-voxel-challenge-2022/ Sun, 01 May 2022 15:42:26 +0800 https://blog.bj-yan.top/en/p/blog-taichi-voxel-challenge-2022/ Documenting my journey participating in the Taichi Voxel Challenge 2022, showcasing my voxel Pac-Man and castle creations, and sharing insights on modeling implementation, parameter tuning, and my overall experience in the competition. https://blog.bj-yan.top/en/p/blog-where-is-the-next-generation-of-captcha/ Sun, 01 May 2022 01:53:59 +0800 https://blog.bj-yan.top/en/p/blog-where-is-the-next-generation-of-captcha/ Reviewing the evolution of CAPTCHA from character recognition to image recognition, discussing human-machine confrontation, user experience, and potential directions for the next generation of CAPTCHA in the context of hCaptcha practices. https://blog.bj-yan.top/en/p/blog-hcaptcha-elephant-drawn-with-leaves/ Sun, 01 May 2022 01:53:15 +0800 https://blog.bj-yan.top/en/p/blog-hcaptcha-elephant-drawn-with-leaves/ Analyze the data and visual characteristics of the hCaptcha leaf elephant image recognition task, discussing sample classification, model training, and identification challenges caused by similar images. https://blog.bj-yan.top/en/p/blog-codecraft-2022/ Tue, 29 Mar 2022 19:01:47 +0800 https://blog.bj-yan.top/en/p/blog-codecraft-2022/ Documenting my experience participating in Huawei CodeCraft 2022, reviewing the bandwidth allocation and 95th percentile billing problem, pitfalls encountered in the practice contest, attempts in the preliminary round, and team reflections. https://blog.bj-yan.top/en/p/blog-hcaptcha-sky-left-airplane/ Thu, 03 Mar 2022 23:34:48 +0800 https://blog.bj-yan.top/en/p/blog-hcaptcha-sky-left-airplane/ Analyze the hCaptcha task of identifying left-flying airplanes, introducing an implementation approach that uses background complexity, image color, and directional features to determine if an airplane is in the sky. https://blog.bj-yan.top/en/p/blog-hcaptcha-vertical-river/ Wed, 02 Mar 2022 10:32:15 +0800 https://blog.bj-yan.top/en/p/blog-hcaptcha-vertical-river/ Analyze the hCaptcha vertical river image task, document observations of image features, recognition methods, and solution iterations, and discuss the impact of generated images on CAPTCHA recognition. https://blog.bj-yan.top/en/p/blog-github-actions-cv/ Sat, 19 Feb 2022 18:12:54 +0800 https://blog.bj-yan.top/en/p/blog-github-actions-cv/ Automatically compile LaTeX resumes and distribute PDFs using GitHub Actions. This article covers workflows, cross-repository pushes, SSH Deploy Key configuration, and common authentication pitfalls. https://blog.bj-yan.top/en/p/blog-nft-common-site/ Tue, 15 Feb 2022 09:58:14 +0800 https://blog.bj-yan.top/en/p/blog-nft-common-site/ A collection of NFT trading platforms, news updates, galleries, and tools I use and follow while writing; includes personal impressions. Platform status and service information are time-sensitive. https://blog.bj-yan.top/en/p/blog-deep-learning-for-pixel-art/ Tue, 15 Feb 2022 01:19:35 +0800 https://blog.bj-yan.top/en/p/blog-deep-learning-for-pixel-art/ Organizing the stylistic features, galleries, datasets, and drawing tools of pixel art, introducing research and projects on deep learning in pixelization, de-pixelization, and pixel art generation. https://blog.bj-yan.top/en/p/blog-hainanu-course-comments/ Thu, 28 Oct 2021 00:38:18 +0800 https://blog.bj-yan.top/en/p/blog-hainanu-course-comments/ Introduces the origins of the Hainan University Course Guide Sharing Initiative, the deployment of the MkDocs website and comment system, as well as the promotional feedback and maintenance ideas on the first day of launch. https://blog.bj-yan.top/en/p/blog-linear-algerbra-ng/ Thu, 14 Oct 2021 21:53:42 +0800 https://blog.bj-yan.top/en/p/blog-linear-algerbra-ng/ Drawing from 3Blue1Brown's 'Essence of Linear Algebra', this post explores matrix multiplication, determinants, inverse matrices, and rank through the lens of geometric transformations, documenting my personal insights into learning linear algebra. https://blog.bj-yan.top/en/p/blog-mum-2021/ Thu, 09 Sep 2021 23:41:44 +0800 https://blog.bj-yan.top/en/p/blog-mum-2021/ Organizing the approach for Problem C of the 2021 National College Student Mathematical Modeling Competition, discussing modeling strategies for raw material procurement, supplier selection, and transportation scheduling for a manufacturing enterprise.