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Smart Sea Tide
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Smart Sea Tide

Sharing cutting‑edge big data and AI technologies, with occasional lifestyle insights.

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Recent Articles

Latest from Smart Sea Tide

98 recent articles
Smart Sea Tide
Smart Sea Tide
Jul 6, 2026 · Industry Insights

Why Are Many State‑Owned Digital Tech Companies Being Shut Down?

The article analyses how a policy‑driven boom of digital‑technology subsidiaries in Chinese central and local state‑owned enterprises exploded to over a thousand firms, then collapsed as most small, copy‑cat units faced fuzzy positioning, technical hollowing, institutional mismatch and internal waste, leaving only a few core players thriving.

digital transformationindustry analysispolicy-driven
0 likes · 12 min read
Why Are Many State‑Owned Digital Tech Companies Being Shut Down?
Smart Sea Tide
Smart Sea Tide
Jun 26, 2026 · Industry Insights

Ten Key Questions About Digital Twins

This article systematically examines ten fundamental questions on digital twins—defining the concept, identifying stakeholders, comparing global research intensity, linking to smart manufacturing, exploring integration with New IT, outlining scientific challenges, standards, and commercial tool requirements—to guide researchers, decision‑makers, and practitioners.

AIBig DataIoT
0 likes · 23 min read
Ten Key Questions About Digital Twins
Smart Sea Tide
Smart Sea Tide
Jun 16, 2026 · Databases

A Systematic Overview of Data Warehouse and Data Mart Modeling Techniques

This article systematically explains data warehouse modeling, covering ER, relational, and dimensional modeling, introduces star, snowflake, and constellation schemas, walks through a retail sales example, discusses fact attributes, slowly changing dimensions, and compares normalized, dimensional, and independent data‑mart approaches.

data warehousedimensional modelingfact constellation
0 likes · 16 min read
A Systematic Overview of Data Warehouse and Data Mart Modeling Techniques
Smart Sea Tide
Smart Sea Tide
Jun 15, 2026 · Product Management

How to Build an Effective Data Metric System for Data Governance

This article explains what data metrics are, why they matter, and provides a step‑by‑step methodology—including principles, design, implementation, and best‑practice models such as AARRR and MECE—to construct a robust data metric system that aligns with business goals and improves analysis efficiency.

AARRRBusiness IntelligenceData Analysis
0 likes · 21 min read
How to Build an Effective Data Metric System for Data Governance
Smart Sea Tide
Smart Sea Tide
Jun 15, 2026 · Databases

Key Data Warehouse Concepts Every Interviewee Should Know

The article explains what a data warehouse is, why it is built for decision support, compares ER and dimensional modeling, and details core concepts such as dimensions, facts, slowly changing dimensions, fact table types, and star versus snowflake schemas, highlighting practical trade‑offs.

Dimension TableER ModelFact Table
0 likes · 12 min read
Key Data Warehouse Concepts Every Interviewee Should Know
Smart Sea Tide
Smart Sea Tide
Jun 11, 2026 · Fundamentals

Understanding Metadata: Definitions, Types, and Key Functions

The article defines metadata as data about data, illustrates it with everyday examples, classifies it into technical, business, and management categories, and outlines eight core functions—including data asset mapping, fast search, flexible views, tagging, insight, lineage, impact analysis, and mapping—to improve data understanding, efficiency, quality, and cross‑system integration.

Data GovernanceData Managementbusiness metadata
0 likes · 9 min read
Understanding Metadata: Definitions, Types, and Key Functions
Smart Sea Tide
Smart Sea Tide
Jun 8, 2026 · Information Security

Implementing Data Classification and Grading: A Practical Guide

The article explains why data classification and grading are essential for data security governance, outlines the legal backdrop, describes a six‑step methodology, and presents detailed case studies from a municipal HR bureau, a big‑data bureau and a bank that illustrate how the process is planned, executed and operationalized with a self‑built discovery platform.

Data Governancebankcase study
0 likes · 11 min read
Implementing Data Classification and Grading: A Practical Guide
Smart Sea Tide
Smart Sea Tide
Jun 2, 2026 · Big Data

Common Big Data Collection Tools and Their Core Features

This article reviews seven widely used big data collection tools—Flume, Fluentd, Logstash, Chukwa, Scribe, Splunk, and Scrapy—detailing their architectures, supported data sources, extensibility, and typical use cases for efficiently gathering and processing large‑scale data.

Big DataChukwaFluentd
0 likes · 11 min read
Common Big Data Collection Tools and Their Core Features
Smart Sea Tide
Smart Sea Tide
May 29, 2026 · Big Data

Designing a Scalable Big Data Service Platform Architecture

The article outlines how big data technology has evolved from core storage, processing, and analysis to include management, circulation, and security, forming a comprehensive ecosystem that now emphasizes cost reduction and enhanced security, and it details the platform's collection governance, analysis, visualization, and overall technical architecture.

Big DataData AnalysisData Governance
0 likes · 3 min read
Designing a Scalable Big Data Service Platform Architecture
Smart Sea Tide
Smart Sea Tide
May 29, 2026 · Artificial Intelligence

Exploring System Prompts of Leading AIs (ChatGPT, Claude, Gemini, Grok, Perplexity)

The open‑source “system_prompts_leaks” repository gathers and categorizes the system prompts of top AI models, analyzes each vendor's design philosophy—from OpenAI's personality‑utility split to Anthropic's engineering focus and xAI's role‑based approach—and shows how prompts serve as the complete product blueprint.

AI Product DesignAnthropicOpenAI
0 likes · 4 min read
Exploring System Prompts of Leading AIs (ChatGPT, Claude, Gemini, Grok, Perplexity)