Alibaba leverages multiple machine‑learning models—including spending forecasts, discount‑sensitivity, spread‑ability, category‑preference, and churn prediction—to intelligently allocate shopping vouchers and red packets during Double 11, boosting consumer engagement, merchant sales, and overall platform GMV.
This article provides a comprehensive overview of Toutiao's recommendation system, covering its three‑dimensional modeling approach, feature engineering, real‑time training pipeline, recall strategies, user‑tag generation, evaluation methodology, and content‑safety mechanisms.
This article explains JD Finance's operational challenges in a rapidly expanding micro‑service environment and presents a comprehensive approach that combines offline and online load testing, precise capacity calculations, and intelligent root‑cause alert analysis using both rule‑based and machine‑learning techniques.
Alibaba’s latest AI-driven ad retrieval framework, unveiled at WWW 2018, replaces keyword‑based search with a user‑behavior heterogeneous graph and machine‑learning models, delivering personalized, high‑efficiency ad matching that boosts ROI for advertisers, improves user experience, and enhances platform revenue.
This article presents the design, architecture, and several AI-driven models—including user intent detection, group supervision, content extraction, knowledge graph construction, and self‑service QA—of Ctrip's intelligent cloud customer service platform, highlighting its impact on service efficiency and business automation.
In this lecture, Prof. Pei Dan of Tsinghua University outlines the evolution of intelligent operations from rule‑based automation to machine‑learning‑driven AIOps, discusses data, feedback loops, and practical challenges, and calls for stronger collaboration between industry and academia to accelerate research and deployment.
This article reviews the key concepts, challenges, and recent research on transfer learning presented at CIKM 2017, covering instance, feature, parameter, and relation‑based methods, supervised and unsupervised deep TL approaches, and transitive transfer learning with associated loss formulations and optimization strategies.
This article explores whether regular programmers should switch to AI engineering, presents three detailed real‑world transition cases, outlines step‑by‑step learning paths, essential resources, and practical advice for mastering machine learning and deep learning technologies.
This article surveys the 20 most active Python machine‑learning repositories on GitHub, summarizing each project's core capabilities, typical use cases, and providing direct links for developers interested in exploring open‑source AI tools.
This article explains user behavior concepts and feedback types, introduces collaborative filtering methods including user‑based, item‑based and latent factor models, discusses similarity measures, power‑law distributions, and practical considerations such as negative sampling, providing a comprehensive overview for building recommendation systems.
The author recounts a 16‑hour drive to Las Vegas for AWS re:Invent, highlighting AI‑focused sessions such as Alexa, Lex, Polly, serverless Lambda, the MXNet vs TensorFlow competition, and emerging video‑processing research, while noting strengths, limitations, and future growth prospects.
This article traces the evolution of computer chess from the 18th‑century automaton "The Turk" through early programs by Turing, Shannon, and McCarthy, to landmark systems like Deep Blue, AlphaGo, and AlphaZero, highlighting key algorithms, milestones, and their impact on AI research.
The author reflects on attending AWS re:Invent 2017, highlighting Alexa's AI capabilities, the ecosystem for skill development, the technical challenges of building voice assistants, and the need for tight integration of product, algorithm, and engineering to advance intelligent assistants.
This article details how to create a simple Chinese pinyin input method using a Hidden Markov Model, training data from Jieba, storing probability matrices in SQLite, and implementing the Viterbi algorithm in Python, complete with code snippets and performance observations.
From foundational concepts to practical examples, this guide walks engineers through ten essential supervised and unsupervised machine‑learning algorithms—decision trees, Naïve Bayes, linear regression, logistic regression, SVM, ensemble methods, clustering, PCA, SVD, and ICA—explaining their theory, real‑world uses, and why they matter.
This article describes Ctrip’s evolution from rule‑based web attack detection to a Spark‑powered machine‑learning system, detailing the Nile architecture, data collection, feature engineering with TF‑IDF, model training, evaluation metrics, online deployment, and future enhancements for information security.
This article reviews Alibaba's end‑to‑end intelligent dialogue system, detailing its connection‑driven interaction model, the core NLU framework, intent classification, attribute extraction, ranking, QA and chat modules, product deployments, and future research directions.
Meituan‑Dianping’s DSP coarse‑ranking filters large ad candidate sets by scoring ads with user‑profile, weather, and keyword scenario models—using frequent‑itemset mining, AdaBoost, and TF/IDF—then aggregates these scores via a linear‑regression model to select high‑relevance ads for fine‑ranking, boosting click‑through and conversion rates.
This article explains what user profiling is, why it’s crucial for recommendation systems, outlines key dimensions such as personal attributes, status, and interests, describes algorithms like classification and autoregressive models, and details offline and real‑time computation methods, evaluation techniques, and practical examples.
He Xiaofeng, JD Mall Infrastructure chief architect, discusses his role in building a real‑time computing platform, applying streaming frameworks, machine learning, and knowledge‑graph techniques to product data mining, improve search accuracy, and outline future research directions.
This article explains what recommendation systems are, their purpose, differences from search, typical multi‑layer architecture, real‑time and offline processing flows, user feedback handling, and key metrics for evaluating their effectiveness.
This article introduces how to leverage the opencv4nodejs Node.js module—binding OpenCV’s full API—to develop a face detection and recognition application, highlighting the CPU‑intensive nature of computer‑vision tasks, the limitations of JavaScript, and the availability of synchronous and asynchronous examples.
In this comprehensive talk, Pei Dan outlines the technical and strategic roadmap for bringing AIOps to production, explains the challenges of anomaly detection, fault localization, root‑cause analysis and prediction, and demonstrates how to decompose complex operations problems into AI‑solvable tasks.
The O2O Machine Learning Applications Seminar, featuring experts from Meituan‑Dianping and Alibaba, explores real‑world ML implementations for online‑to‑offline services, including online learning for search, Alibaba’s Ali Xiaomi intelligent assistant, deep‑learning‑driven recommendation systems, and advertising algorithms such as CTR and CVR optimization, sharing practical insights and best practices.
This article surveys the most essential Python packages for data science in 2017, covering core scientific computing, data manipulation, visualization, machine learning, deep learning, natural language processing, and web scraping, and explains why each library remains indispensable for modern analysts.
This article explains the origins and development of artificial intelligence, clarifies the relationships and distinctions among AI, machine learning, and deep learning, and uses several illustrative diagrams to help readers quickly grasp how these three hot AI technologies are connected and differ from each other.
An analysis of Indeed.com job‑trend data reveals how programming languages like Python, Java, R, C++, Scala and Julia rank in popularity for machine‑learning and data‑science positions, highlighting growth patterns and offering guidance on language selection based on career goals.
This article introduces the fundamental concepts of machine learning, defining the terms "machine" and "learning," presenting Tom Mitchell's formal definition, outlining the roles of learners and predictors, and contrasting machine‑learning programs with traditional software through clear diagrams.
The iQIYI recommendation system combines a two‑stage pipeline of recall and ranking, evolving from logistic regression to a GBDT‑FM‑DNN ensemble, using online feature storage, extensive feature engineering, and configurable strategies to deliver personalized video suggestions while addressing feature drift and multi‑objective business goals.
Google’s AutoML system has begun generating machine‑learning code that outperforms the very researchers who created it, achieving record‑high accuracy on image‑recognition tasks and demonstrating a self‑replicating AI that challenges the notion of human superiority in programming.
This article introduces the most common machine learning algorithms, covering supervised methods such as decision trees, Naive Bayes, linear regression, logistic regression, SVM, and ensemble techniques, as well as unsupervised approaches like clustering, PCA, SVD, and ICA, with practical examples and visual illustrations.
This article explains the fundamental concepts of machine learning and deep learning, compares their data and hardware dependencies, feature processing, problem‑solving approaches, execution time, and interpretability, and outlines real‑world applications and future development trends.
This article introduces decision trees in data analysis and machine learning, explains core concepts, compares popular algorithms such as ID3, C4.5, and CART, details their mathematical foundations, and provides a complete Python implementation with code examples for building and visualizing trees.
This article explains why traditional passive disk‑failure handling is insufficient, describes a machine‑learning engine that combines SMART data with workload analysis to forecast disk lifespan with over 96% accuracy, and outlines the operational benefits of proactive failure management.
Google's AutoML system can automatically generate and improve machine‑learning code, outperforming human researchers with record‑high accuracy on image‑recognition tasks and demonstrating that AI‑driven self‑replicating programs can surpass programmers in just a few hours.
Pornhub unveiled an AI model that uses computer‑vision techniques to automatically recognize and tag over ten thousand adult performers, allowing users to search more precisely while also involving human reviewers to verify and improve the system’s accuracy.
This article demonstrates a step‑by‑step workflow for constructing a churn prediction model using R in Discover, covering data loading, preprocessing, feature extraction, labeling, random‑forest training, prediction, and evaluation to help businesses proactively retain high‑value customers.
This article presents a comprehensive collection of AI, machine learning, and deep learning learning materials, including historical overviews, technology architectures, application domains, and numerous downloadable resources such as tutorials, datasets, and code links, aimed at guiding enthusiasts and professionals in intelligent operations.
iQIYI’s security cloud team designed a data‑driven, cloud‑native risk control platform that unifies threat detection, rule management, and security knowledge across membership, video, e‑commerce and payment services, achieving sub‑5 ms latency, 24 billion daily requests, and near‑complete elimination of machine credential‑stuffing attacks.
The article answers ten machine‑learning questions, explaining how to impute missing behavior data, extract and select features, describe Meituan‑Dianping’s recommendation pipeline, suggest a beginner learning path, clarify L1 sparsity, recommend TextCNN for text, discuss search‑ranking sample bias, label generation for wide‑deep models, the shift to deep‑learning video detection, and the use of factorization machines for CTR with open‑source examples.
This article provides a comprehensive introduction to machine learning and deep learning, covering their definitions, classifications, key algorithms, neural network structures, core concepts such as generalization and regularization, and typical architectures like CNN and RNN, illustrated with numerous diagrams.
The article explains that industrial AI needs specialists who can apply machine‑learning models to specific domains, outlines essential fundamentals such as regression, classification, neural networks, data visualization, and unsupervised learning, and offers practical career advice for students and early‑career professionals seeking to transition into machine‑learning roles.
This article provides a comprehensive introduction to machine learning and deep learning, covering their definitions, differences, key concepts such as generalization, regularization, and overfitting, as well as typical algorithms and network architectures like CNN and RNN, illustrated with numerous diagrams.
This article introduces TensorFlow, its origins and capabilities, and summarizes a three‑day hands‑on tutorial covering installation, basic models, convolutional and recurrent neural networks, and practical code examples for deep learning practitioners.
The author shares a step‑by‑step self‑learning plan for machine learning, covering essential linear‑algebra refreshers, foundational algorithm courses, hands‑on coding tutorials in MATLAB and Python, advanced deep‑learning studies with CS231n, and a curated list of reference links and GitHub notes.
This article describes how Tongcheng Travel’s monitoring system evolved from a monolithic design to a distributed and big‑data‑based architecture, introducing real‑time processing with Storm, machine‑learning‑enhanced alerts, and a multivariate linear regression model that dramatically improves traffic anomaly detection accuracy.
Gartner's 2017 report outlines ten strategic technology trends—including artificial intelligence, smart applications, intelligent objects, immersive VR/AR, digital twins, blockchain, conversational systems, mesh services, digital platforms, and adaptive security—that together drive an intelligence‑centric, digitally connected future for enterprises.
The iQIYI NLP team applies lexical analysis, knowledge‑graph construction, tag recommendation, query understanding, voice‑assistant semantics, sentiment mining, and box‑office/view‑count prediction—leveraging weakly labeled data, CRF/CNN‑CRF models and deep learning—to enhance video comprehension, recommendation, search and commercial services across the platform.
This article explains why recommender systems were created, describes the problem of information overload, introduces core algorithms such as popularity, content‑based, collaborative filtering and hybrid methods, and illustrates each with a six‑user/book example and a Netflix case study.
This article explains the objectives of recommendation systems, compares popular recommendation approaches, details the components and algorithms of personalized recommendation pipelines, and discusses practical challenges such as real‑time processing, freshness, cold‑start, diversity, content quality, and surprise handling.
At the 2nd China Big Data International Summit 2017, JD’s chief architect presented how machine‑learning techniques are applied across e‑commerce to improve product data quality, ensure compliance, resolve image‑text mismatches, automate category identification, restructure titles, and build a multi‑dimensional product knowledge graph.
This article recounts a year-long journey to become a data mining engineer, explaining the role’s value, required skills, tools such as Excel, Tableau, SQL, Python, Scala, Spark, and machine‑learning techniques, and offers practical steps for aspiring professionals.
This paper introduces a dynamic fusion algorithm that leverages multi‑dimensional logistic regression and rich consumer behavior features to infer infants' life stages from parental e‑commerce actions, demonstrating significant accuracy improvements over memory‑less baselines across multiple months of Taobao data.
This article describes a flexible web crawler identification approach that combines sliding‑window data collection with Support Vector Machine classification, detailing the underlying concepts, feature extraction, system architecture, client‑server interaction, and deployment steps for practical use.
This article explains how Tencent Game operations moved from manual, threshold‑based monitoring to an AI‑powered, data‑driven workflow that automates scaling, improves online‑curve monitoring, enables full‑dimensional analysis, and reduces time, labor, and cost while enhancing player experience.
This article presents a comprehensive NLP‑driven text‑mining workflow for tourism comment data, covering data cleaning, word2vec training, keyword extraction, sentiment analysis, ranking, and a lightweight architecture that enables fast, accurate recommendation of scenic spots for users.
Based on Gartner research, this article explains what AIOps is, how digital transformation drives its emergence, the platform’s big‑data and machine‑learning components, the factors and elements shaping it, and practical considerations for implementing AI‑powered IT operations.
This article compiles over twenty‑seven curated cheat sheets covering machine learning algorithms, Python data‑science libraries, and essential mathematics such as probability, linear algebra, statistics, and calculus, providing concise reference images and source links for quick study.
Senior Alibaba algorithm expert Jing Shi shares his six‑year journey from joining the company, the challenges of large‑scale ad click‑through‑rate modeling, the evolution from linear logistic regression to deep learning, and practical advice for aspiring AI engineers and interview candidates.
This article curates over 20 machine‑learning cheat sheets—including algorithm overviews, Python libraries, and essential mathematics—compiled from various online sources and illustrated with downloadable diagrams, offering a comprehensive reference as of June 1 2017.
This article describes how Meituan‑Dianping leverages deep learning, especially the Wide & Deep model, to improve its recommendation system by addressing business diversity, user context, feature engineering challenges, optimizer and loss function choices, and presents offline and online experimental results showing significant CTR gains.
This article surveys the rapidly evolving JavaScript machine‑learning ecosystem, introducing ten libraries—from Brain and Synaptic to DeepForge—detailing their capabilities, usage contexts, and example demos, and showing how developers can experiment with AI directly in web browsers.
This article reviews a KDD 2016 study that combines the Regularized Greedy Forest algorithm with transfer learning to accurately predict hard‑disk failures in data centers, addressing challenges like irrelevant SMART attributes, imbalanced data, and model portability across disk models.
This guide outlines a step‑by‑step learning roadmap for ordinary programmers aiming to become data scientists, covering essential math, statistics, machine learning fundamentals, feature engineering, deep learning resources, open‑source tools, and practical project advice to navigate the AI field effectively.
This article reviews YouTube’s recommendation system research from 2008 to 2016, detailing four development stages—user‑video graph walks, video‑video graph walks, search‑based methods with collaborative filtering, and deep neural networks—highlighting key algorithms, system architectures, and experimental results.
The article introduces Weiflow, a dual‑layer DAG‑based machine‑learning workflow framework designed for Sina Weibo, and explains how its modular XML configuration, Scala implementation, and integration with Spark, TensorFlow, Hive, Storm, and Flink improve development efficiency, scalability, and execution performance across the entire ML pipeline.
Alibaba’s 2016 Double‑11 e‑commerce search team unveiled the CLOES cascade ranking algorithm, which reduces CPU usage by about 45%, lowers average search latency from 33 ms to 24 ms, and boosts GMV by nearly 1%, with detailed offline and online validation presented in a KDD‑2017 paper.
Alibaba's senior algorithm expert Yang Hongxia explains how the company fuses massive, heterogeneous data sources into a unified platform, builds automated tag‑production pipelines and large‑scale distributed knowledge graphs, and applies these technologies to drive smarter business decisions and AI‑enabled services.
The article presents a comprehensive overview of DianRong Net's in‑house machine‑learning platform built on Spark, its workflow, pain points it addresses, risk‑control case studies using graph mining, and practical tips for improving model performance through data, algorithms, hyper‑parameter tuning and ensemble methods.
The article explains Gartner’s definitions of Business Intelligence and Artificial Intelligence, compares their core capabilities, discusses whether AI is over‑hyped, and illustrates how AI‑driven solutions differ from traditional BI across marketing, public safety, finance, and education sectors.
Tencent's social advertising team hosts an algorithm contest for college students, leveraging big data and machine learning to develop innovative solutions for social advertising scenarios, inviting participants to submit algorithmic approaches to real-world advertising challenges.
The article explores how machine learning models emulate human learning by converting diverse real‑world descriptions into numerical features, illustrating concepts such as one‑hot encoding, supervised, unsupervised, and reinforcement learning, and emphasizing the importance of mapping inputs to outputs for intelligent systems.
This article explains how applying machine‑learning techniques such as EWMA and periodic‑based amplitude analysis creates dynamic thresholds that dramatically reduce false alerts in monitoring systems while improving detection of genuine anomalies.
This guide outlines a smooth, step‑by‑step learning path for busy programmers with a bachelor's degree, covering AI fundamentals, essential mathematics, recommended courses, practical projects, deep‑learning resources, open‑source tools, and strategies to stay motivated and succeed in the field.
The paper “Optimized Cost per Click in Taobao Display Advertising” introduces a novel two‑level OCPC smart bidding algorithm that jointly optimizes advertiser ROI, user experience, and platform revenue, presents detailed mathematical formulations, offline and online experiments showing significant gains in GMV, CTR, CVR, and RPM across single‑item and banner ad placements.
In this interview, a solo female participant from Shanghai Jiao Tong University shares her experience, challenges, and technical insights—including feature engineering, memory management, and model tuning with XGBoost and LightGBM—gained while competing in the Tencent Social Ads algorithm contest.
The article explains how web crawlers (spiders) collect data for knowledge graphs, covering core tasks, major challenges, crawler features, new‑link expansion, storage design, link‑selection scheduling strategies, and the role of large‑scale data mining and machine learning in optimizing crawl efficiency.
This article examines Toutiao’s rapid rise as a personalized news platform, detailing its AI‑driven recommendation pipeline, web‑crawling infrastructure, similarity‑matrix algorithms, A/B testing, and the role of human moderation in delivering highly targeted content to billions of users.
This article surveys eleven forward‑looking predictions—from cloud computing eclipsing Moore's law to IoT security challenges, video‑centric web experiences, AI‑driven features, evolving UI design, autonomous transport, legal constraints, and the rise of containers—highlighting how programmers must adapt to stay competitive.
Meituan‑Dianping’s travel search team tackles cross‑region queries and noisy data by iteratively refining a four‑step, case‑driven pipeline that classifies intent, segments queries, ranks results with distance and term‑importance models, and employs multi‑stage, parallel recall to steadily boost purchase rate, CTR, and user satisfaction.
This article details the design and implementation of a live‑stream video quality monitoring platform that combines subjective labeling, machine‑learning models, and a multi‑layer architecture to automatically evaluate and alert on video quality across thousands of streams.
This article explains the technical background of click‑through‑rate (CTR) prediction, critiques traditional linear models, introduces Alibaba’s Mixed Logistic Regression (MLR) algorithm with its advanced features and large‑scale distributed implementation, and reviews its successful deployment and remaining challenges in advertising systems.
Suning’s smart replenishment system showcased at CES Asia 2017 leverages big‑data analytics and machine‑learning models—linear regression, random forest, and XGBoost—to predict sales, optimize inventory across multiple warehouses, and shift retail from traditional B2C to a data‑driven C2B approach.
In this article, the author shares their approach to data analysis for a Tencent competition, including daily data partitioning, feature engineering techniques, business understanding, and model selection strategies.
JD.com's JData Algorithm Competition concluded with record-breaking participation, awarding 600,000 yuan in prizes and offering special employment opportunities to top performers, while showcasing how AI and big data enhance e-commerce experiences.
The weekly roundup covers AlphaGo’s retirement and release of self‑play games, Tencent’s surge as Asia’s top startup investor, Microsoft’s migration of Windows code to Git, WeChat mini‑program enhancements, Alibaba’s retail partnership, AI insights from Siri’s co‑founder and Facebook’s new NMT model, Xamarin Live Player’s impact, and Git 2.13 security improvements.
The article describes how a three‑stage algorithm platform was designed and implemented to automate model deployment, unify feature processing, and provide service‑oriented model evaluation, debugging, and monitoring for machine‑learning applications in a large e‑commerce environment.
The article reviews the surge of AI interest sparked by AlphaGo and Master, explains why strong mathematics—especially linear algebra, probability, statistics, calculus, and optimization—is crucial for AI practitioners, and provides curated free online courses, textbooks, and resources to help beginners master these subjects.
The JD Data Algorithm Competition aims to help shoppers overcome decision paralysis by using advanced algorithms to match users with products they'll love, featuring diverse participants from students to professionals competing for prizes and potential real-world implementation.
This article provides a comprehensive introduction to Kaggle, covering its history, competition formats, participation rules, public and private leaderboard mechanics, and a step‑by‑step workflow that includes data analysis, cleaning, feature engineering, model training, validation, hyper‑parameter tuning, ensemble techniques, and automation frameworks for successful data‑mining contests.
Meituan’s demand‑side platform combines real‑time bidding with a two‑service architecture—RecServer for multi‑scenario ad recall and PredictorServer for CTR and conversion‑value prediction—leveraging behavior, location, collaborative‑filtering and matrix‑factorization features, logistic‑regression and GBDT models, and continuous A/B and metric monitoring to optimize ROI.
This article introduces regression concepts, explains linear, locally weighted, and ridge regression methods, demonstrates their mathematical foundations, provides Python implementations, and discusses model evaluation techniques to help readers choose the appropriate regression approach for their data.
The article presents a comprehensive 2017 overview of how Quora applies machine learning across question understanding, answer ranking, personalization, content quality, and ad optimization, detailing the models, libraries, and platform infrastructure that power these systems.
Alibaba unveiled its AI‑driven design platform Luban, which leverages massive data and machine‑learning algorithms to automatically generate high‑quality, personalized graphics at double‑digit scale, reshaping design workflows, boosting efficiency, and prompting a strategic shift for designers in the new commercial era.
This article breaks down the four essential elements of a model project—business, features, data, and model—explains their priority order, and provides practical guidance on aligning technical choices with core business goals to achieve efficient, high‑impact outcomes.
Facebook evaluates its Newsfeed recommendation quality through three pillars—machine-learning model metrics like AUC, extensive product data KPIs such as DAU and interaction rates, and user-survey feedback—while maintaining long-term backtests and emphasizing the risks of relying on a single metric.
This article defines artificial intelligence as a branch of computer science that aims to simulate and extend human intelligence, outlines its key research areas such as robotics and natural language processing, and presents a detailed visual timeline from TalkingData that charts the technology’s major milestones.
This tutorial introduces TensorFlow fundamentals—including computational graphs, sessions, tensors, variables, placeholders, and feed_dict—explains why TensorFlow is popular, and walks through a complete MNIST handwritten digit recognition example with code snippets and visualizations.
Neural Complete, an open‑source project by Pascal van Kooten, trains a neural network to auto‑complete the code of another neural network using LSTM and Keras, demonstrating AI‑driven metaprogramming that could accelerate software development, research, and numerous future applications.
This tutorial walks through using scikit‑learn's LinearRegression on the classic diabetes dataset, covering data description, model training with fit(), making predictions, evaluating performance, and code optimizations, all illustrated with clear output images and plots.
