TAL Education is a technology-driven education company committed to the mission of 'making education better through love and technology'. The TAL technology team has always been dedicated to educational technology research and innovation. This is the external platform of the TAL technology team, sharing weekly curated technical articles and recruitment information.
This article explains the statistical principles behind A/B testing, covering concepts such as populations, samples, parameters, hypothesis testing, significance levels, t‑tests, metric types, p‑value calculations, and real‑world examples to guide data‑driven product decisions.
This article explains the basic network programming pattern, introduces epoll as an I/O multiplexing solution for high‑concurrency servers, and demonstrates how Redis 5.0 integrates epoll through its event‑loop abstraction with detailed code examples and debugging tips.
This article presents the Future Cloud Business Monitoring real-time dashboard solution, detailing its technical architecture, key challenges in massive log processing, storage choices, product considerations, experience sharing, future plans, and concrete case studies such as live classroom monitoring.
The article outlines the challenges of real‑time messaging in live‑streaming education, presents a multi‑stage backend architecture—including AccessServer, MessageServer, and specialized services—along with caching, clustering, and future enhancements such as connection migration and QUIC to achieve high reliability, low latency, and massive concurrency.
This article details the challenges encountered when developing WeChat H5 pages—such as authorization‑loop redirects, cross‑origin poster creation with html2canvas, iPhone 100vh scrolling bugs, and precise performance timing using window.performance—and presents practical code‑based solutions and compatibility tips for both iOS and Android devices.
This article details the design and multi‑stage optimization of an A/B testing metric system, describing its product architecture, Spark‑based computation engine, ClickHouse OLAP layer, cumulative calculation improvements, and batch processing techniques that reduced processing time from hours to a few minutes for hundreds of experiments and metrics.
GoodFuture AI Institute secured four international titles at CVPR 2021—including Person In Context, UG²+, ETH‑XGaze, and ActivityNet—showcasing world‑class computer‑vision algorithms for human‑object interaction, low‑light face detection, gaze estimation, and active speaker detection, and highlighting their deployment in educational AI solutions.
The presentation details the TalRTC real‑time communication platform used in online education, covering its product overview, three‑layer architecture, high‑availability and weak‑network strategies, as well as special optimizations for teaching scenarios that improve audio‑video quality and reliability.
This article explains the evolution from monolithic to microservice architectures, the challenges of service governance, the concept and benefits of service mesh, and details the practical adoption of Istio‑based service mesh—including traffic ingress, smooth migration, downgrade strategies, and future enhancements—within the platform.
This article explains how to build a high‑performance, 5K‑node hybrid‑cloud container network by reviewing Kubernetes pod and service networking, comparing iptables, IPVS and eBPF implementations, and describing large‑scale overlay, BGP, IPVlan, and NodeLocal DNS solutions.
