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user profiling

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JD Retail Technology
JD Retail Technology
Nov 6, 2024 · Artificial Intelligence

Explainability Practices in JD Retail Recommendation System

This article describes the definition, architecture, and practical applications of explainability in JD's retail recommendation system, covering ranking, model, and traffic explainability, system challenges, data infrastructure, and specific techniques such as SHAP and Integrated Gradients for interpreting model decisions.

AIRankingexplainability
0 likes · 17 min read
Explainability Practices in JD Retail Recommendation System
DataFunSummit
DataFunSummit
Oct 29, 2024 · Artificial Intelligence

Technical Maturity Curve of User Profiling and Tag Systems in the Large‑Model Era

This article explains the concept of a technology maturity curve, why it should be evaluated, and how user profiling and tag systems evolve under the influence of large‑model AI, detailing seven key assessment dimensions and a comprehensive architecture that guides enterprises in strategic decision‑making.

AIData EngineeringLarge Models
0 likes · 21 min read
Technical Maturity Curve of User Profiling and Tag Systems in the Large‑Model Era
IT Xianyu
IT Xianyu
Aug 26, 2024 · Big Data

Hive Data Warehouse: Modeling, Partitioning, and ID‑Mapping for User Profiles

This article explains how Hive serves as a data‑warehouse layer for user‑profile tagging, covering data‑warehouse fundamentals, fact‑and‑dimension modeling, partitioned storage, label aggregation, and ID‑mapping techniques with practical Hive DDL/DML examples.

Big DataData WarehouseETL
0 likes · 11 min read
Hive Data Warehouse: Modeling, Partitioning, and ID‑Mapping for User Profiles
DataFunTalk
DataFunTalk
Aug 8, 2024 · Big Data

Building a User Profile Data Warehouse at 58.com: Architecture, Modeling, and Practices

This article details the design and implementation of a user‑profile data warehouse at 58.com, covering data‑warehouse fundamentals, user‑profile tag generation, layered architecture, dimensional modeling choices, ETL migration from Hive to Spark, data‑quality safeguards, and the resulting scale of tables, metrics and tags.

Big DataData WarehouseETL
0 likes · 20 min read
Building a User Profile Data Warehouse at 58.com: Architecture, Modeling, and Practices
DataFunSummit
DataFunSummit
Jul 5, 2024 · Artificial Intelligence

Building and Applying a User Profile Tagging System: Practices and Insights

This article presents a comprehensive overview of constructing and deploying a user and item profiling tag system at Qunar, covering tag taxonomy, integration challenges, technical architectures, algorithmic methods such as classification, recommendation, knowledge‑graph and causal inference, as well as real‑time streaming, ID‑mapping, and practical applications in marketing, attribution and A/B testing.

AB testingData EngineeringTagging System
0 likes · 21 min read
Building and Applying a User Profile Tagging System: Practices and Insights
DataFunTalk
DataFunTalk
Jun 20, 2024 · Artificial Intelligence

User Profiling Algorithms: From Ontology‑Based Methods to Deep Learning and Large Model Integration

This article provides a comprehensive overview of user profiling algorithms, covering the evolution from ontology‑based traditional methods to modern deep‑learning approaches, including structured label prediction, representation learning, active learning, and large‑model integration, while discussing challenges, practical applications, and future research directions.

Large Modelsactive learningdeep learning
0 likes · 26 min read
User Profiling Algorithms: From Ontology‑Based Methods to Deep Learning and Large Model Integration
DataFunSummit
DataFunSummit
Jun 5, 2024 · Fundamentals

User Portrait Tagging: Construction, Feature Processing, and Evaluation

This article provides a comprehensive guide on building user portrait tags—from basic attribute tags to business and strategy tags—detailing data collection methods, feature engineering techniques such as cleaning, time decay, and smoothing, and evaluation metrics for cohesion and stability, aimed at data product managers and analysts.

Feature Engineeringdata scienceevaluation metrics
0 likes · 12 min read
User Portrait Tagging: Construction, Feature Processing, and Evaluation
DataFunSummit
DataFunSummit
Jun 2, 2024 · Artificial Intelligence

Construction and Application of a User Profile Tag System: Methods, Platforms, and Use Cases

This article presents a comprehensive overview of building a user profile tag system—including tag taxonomy, platform architecture, construction methods, update cycles, access patterns, common algorithmic tags, and real‑world applications such as marketing, metric attribution, and A/B testing—illustrated with examples and a detailed Q&A session from a data‑mining senior manager at Qunar.

AB testingData MiningTag System
0 likes · 21 min read
Construction and Application of a User Profile Tag System: Methods, Platforms, and Use Cases
DataFunSummit
DataFunSummit
May 18, 2024 · Big Data

Building a User Profile Platform with ClickHouse at 58.com: Architecture and Optimization

This article describes how 58.com designed and implemented a large‑scale user profiling platform using ClickHouse, covering system overview, core modules, major challenges of scale, complexity and performance, and the detailed storage, query, and optimization techniques applied to meet business needs.

Big DataClickHousedata-architecture
0 likes · 11 min read
Building a User Profile Platform with ClickHouse at 58.com: Architecture and Optimization
DataFunTalk
DataFunTalk
May 2, 2024 · Artificial Intelligence

Algorithmic Role in Building the 58 User Profiling Platform

This article explains how 58's user profiling platform leverages algorithms for tag system construction, audience generation, recommendation pipelines, and smart operations to enable personalized marketing, fine‑grained operations, and user value growth across multiple business scenarios.

Look-alike ModelingRecommendation systemsTag Engineering
0 likes · 12 min read
Algorithmic Role in Building the 58 User Profiling Platform
DataFunTalk
DataFunTalk
Apr 2, 2024 · Artificial Intelligence

User Portrait Algorithms: From Ontology‑Based Methods to Deep Learning and Future Directions

This article provides a comprehensive overview of user portrait algorithms, covering their historical development, ontology‑based traditional approaches, deep‑learning enhancements, representation‑learning techniques such as lookalike, active‑learning driven iteration, and the integration of large‑model world knowledge, while also discussing current challenges and future research directions.

Large Language ModelsRecommendation systemsactive learning
0 likes · 26 min read
User Portrait Algorithms: From Ontology‑Based Methods to Deep Learning and Future Directions
DataFunSummit
DataFunSummit
Mar 26, 2024 · Fundamentals

User Profile Tagging: Construction, Feature Processing, and Evaluation

This article systematically explains the fundamentals of user profile tags, covering basic attribute tags, business and strategy-oriented tags, detailed feature processing methods such as anomaly handling, time decay, and smoothing, and provides evaluation metrics for cohesion and stability, supplemented by a practical Q&A session.

Feature EngineeringKPI alignmentRFM model
0 likes · 12 min read
User Profile Tagging: Construction, Feature Processing, and Evaluation
DataFunSummit
DataFunSummit
Mar 24, 2024 · Big Data

Design and Implementation of a User Data Warehouse and Profiling System at 58.com

This article details the design and implementation of a user data warehouse at 58.com, covering data warehouse fundamentals, user profiling concepts, multi‑layer architecture, modeling methods, ETL migration from Hive to Spark, data quality assurance, and the resulting achievements.

Big DataData ModelingData Warehouse
0 likes · 20 min read
Design and Implementation of a User Data Warehouse and Profiling System at 58.com
DataFunSummit
DataFunSummit
Mar 8, 2024 · Big Data

Building a User Profile Platform: Architecture, Tag System, and Service Applications

This article explains how to construct a user profile platform by describing its value, target users, core functions, tag data system, API services, lifecycle management, and practical insights from Q&A, offering a comprehensive guide for data product teams.

API servicesdata-platformproduct analytics
0 likes · 14 min read
Building a User Profile Platform: Architecture, Tag System, and Service Applications
DataFunTalk
DataFunTalk
Mar 6, 2024 · Artificial Intelligence

Construction and Practical Application of a User Profile Tagging System

This article details the design, integration, and operational practices of a comprehensive user and item profiling tag system, covering tag taxonomy, construction methods, update cycles, access strategies, algorithmic implementations, and real‑world applications such as marketing, attribution analysis, and A/B testing.

AB testingData MiningTagging System
0 likes · 20 min read
Construction and Practical Application of a User Profile Tagging System
DataFunTalk
DataFunTalk
Mar 2, 2024 · Artificial Intelligence

Construction and Application of User Portraits in Credit Scenarios

This article explains how to build a comprehensive user‑portrait feature system for credit business, covering business goals, data collection, labeling, modeling workflow, technical challenges, multi‑source fusion, deployment, evaluation, management, practical applications, and future extensions using AI and big‑data techniques.

Big Datacredit riskdata fusion
0 likes · 18 min read
Construction and Application of User Portraits in Credit Scenarios
DataFunSummit
DataFunSummit
Feb 10, 2024 · Big Data

User Profile Platform: Architecture, Core Functions, and Engineering Optimization Strategies

This article presents a comprehensive overview of a user profile platform, covering its value, typical functionalities, layered architecture with open‑source implementations, and detailed engineering optimization techniques such as wide‑table generation, crowd selection, bitmap usage, and task‑based processing to improve performance and scalability.

Big DataBitMapOptimization
0 likes · 19 min read
User Profile Platform: Architecture, Core Functions, and Engineering Optimization Strategies
DataFunTalk
DataFunTalk
Feb 5, 2024 · Fundamentals

User Portrait Tagging: Construction, Feature Processing, and Evaluation

This article explains how to build user portrait tags—from basic attribute tags to business and strategy tags—covers methods for data collection, anomaly handling, time decay, smoothing, and evaluates tag quality using cohesion, stability, and AUC-related metrics to support data‑driven product decisions.

Feature Engineeringdata scienceevaluation metrics
0 likes · 12 min read
User Portrait Tagging: Construction, Feature Processing, and Evaluation
DataFunSummit
DataFunSummit
Dec 23, 2023 · Big Data

Common Optimization Points in Building a User Portrait Platform

The presentation by Zhang Xinglong, head of the user understanding center's portrait platform backend, outlines the platform's overall architecture, core module optimizations, advanced crowd creation techniques, bitmap usage, and industry trends, helping the audience understand platform importance, performance improvements, and future directions.

Big DataOptimizationbackend
0 likes · 3 min read
Common Optimization Points in Building a User Portrait Platform
DataFunSummit
DataFunSummit
Dec 20, 2023 · Artificial Intelligence

Building and Applying an Image Tagging System: Architecture, Tag Design, Algorithms, and Business Use Cases

This presentation by senior data mining manager Zhou Yuanwei of Qunar outlines the architecture of an image tagging platform, the construction of a comprehensive tagging system, common algorithmic tags, and real-world applications such as look‑alike marketing, A/B test efficiency analysis, and business attribution, helping audiences understand tag types, design considerations, and value‑driven use cases.

AB testingData Miningbusiness analytics
0 likes · 2 min read
Building and Applying an Image Tagging System: Architecture, Tag Design, Algorithms, and Business Use Cases