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143091 articles · Page 6707 of 7155
Alibaba Cloud Developer
Alibaba Cloud Developer
Jun 27, 2017 · Artificial Intelligence

How Alibaba’s OCPC Algorithm Boosts ROI and Platform Revenue in Taobao Ads

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.

OCPCOnline AdvertisingROI optimization
0 likes · 11 min read
How Alibaba’s OCPC Algorithm Boosts ROI and Platform Revenue in Taobao Ads
MaGe Linux Operations
MaGe Linux Operations
Jun 27, 2017 · Artificial Intelligence

Top Python Libraries Every Data Scientist Should Master

This article reviews the most essential Python libraries for data science—including NumPy, SciPy, Pandas, Matplotlib, Seaborn, Bokeh, Plotly, Scikit‑Learn, TensorFlow, Keras, NLTK, Gensim, Scrapy and Statsmodels—highlighting their core features, GitHub activity and typical use cases.

LibrariesNLPdata-science
0 likes · 12 min read
Top Python Libraries Every Data Scientist Should Master
MaGe Linux Operations
MaGe Linux Operations
Jun 27, 2017 · Fundamentals

Mastering sed: Stream Editing Basics, Commands, and Advanced Tricks

This article explains the fundamentals of the sed stream editor, covering its execution model, common parameters and actions, addressing methods, pattern and hold spaces, label usage, and provides multiple practical examples illustrating typical command patterns and advanced techniques.

Command LineLinuxRegex
0 likes · 8 min read
Mastering sed: Stream Editing Basics, Commands, and Advanced Tricks
Qunar Tech Salon
Qunar Tech Salon
Jun 27, 2017 · Databases

Database Deadlock Cases and Their Resolutions

This article examines three real‑world MySQL deadlock incidents—unique‑key null insertion, concurrent duplicate‑key insertion, and a JDBC parameter bug—detailing their detection, analysis, and the concrete fixes applied to prevent recurrence.

JDBCMySQLUnique Index
0 likes · 9 min read
Database Deadlock Cases and Their Resolutions
dbaplus Community
dbaplus Community
Jun 26, 2017 · Databases

Turning a 12‑Hour Oracle Query into Minutes: Proven SQL Tuning Techniques

This article walks through a real‑world Oracle SQL tuning case, showing how to dissect a 12‑hour execution plan, fix cardinality and statistics issues, eliminate costly Filter operations, rewrite queries for efficient HASH JOINs, and leverage tools like 10053 and SQLT to dramatically improve performance.

Oracleexecution planstatistics
0 likes · 23 min read
Turning a 12‑Hour Oracle Query into Minutes: Proven SQL Tuning Techniques
Architects' Tech Alliance
Architects' Tech Alliance
Jun 26, 2017 · Databases

Huawei ES3600 v3 NVMe SSD Review and Performance Analysis

The review evaluates Huawei's ES3600 v3 enterprise NVMe SSD, detailing its specifications, benchmark methodology, and performance results across SQL Server, MySQL, and synthetic workloads, and concludes with an assessment of its strengths, weaknesses, and suitability for latency‑sensitive database applications.

Enterprise StorageHuaweiMySQL
0 likes · 13 min read
Huawei ES3600 v3 NVMe SSD Review and Performance Analysis
ITFLY8 Architecture Home
ITFLY8 Architecture Home
Jun 26, 2017 · Databases

Building Scalable MySQL HA: From MHA to 7‑Layer Proxy and RDS

After initially focusing on a distributed MySQL system, the author describes why open‑source HA solutions like MHA were unsuitable, then details the design and implementation of a 4‑layer NAT‑based proxy (RDS) and a more advanced 7‑layer application‑level proxy, highlighting features such as authentication, load balancing, read/write splitting, and multi‑datacenter awareness.

DatabaseHigh AvailabilityMySQL
0 likes · 11 min read
Building Scalable MySQL HA: From MHA to 7‑Layer Proxy and RDS
Programmer DD
Programmer DD
Jun 26, 2017 · Cloud Native

How to Consume Services with Spring Cloud’s LoadBalancerClient

This guide shows how to build a Spring Cloud consumer that registers with Eureka, configures LoadBalancerClient and RestTemplate, and calls a provider service’s endpoint using load‑balanced discovery, complete with Maven dependencies, configuration files, and full Java code examples.

JavaSpring Cloudloadbalancerclient
0 likes · 5 min read
How to Consume Services with Spring Cloud’s LoadBalancerClient
ITPUB
ITPUB
Jun 26, 2017 · Databases

Mastering MySQL Case Sensitivity: Rules, Pitfalls, and 5 Practical Fixes

This article explains how MySQL’s case‑sensitivity depends on the underlying operating system and system variables, outlines the exact rules for databases, tables, columns, and identifiers, discusses the impact on Hibernate/JPA mappings, and provides five concrete solutions—including configuration changes, binary attributes, and collations—to control case handling in MySQL.

Case SensitivityCollationMySQL
0 likes · 13 min read
Mastering MySQL Case Sensitivity: Rules, Pitfalls, and 5 Practical Fixes
Hujiang Technology
Hujiang Technology
Jun 26, 2017 · Mobile Development

iOS Network Monitoring: NSURLProtocol, Hook Techniques, and NSURLSessionTaskMetrics

The article explains the challenges of mobile network environments in China, introduces connection migration issues, and presents iOS network monitoring solutions using NSURLProtocol, code injection (Hook) with Method Swizzling, NSProxy, and Fishhook, as well as detailed usage of NSURLSessionTaskMetrics for performance analysis.

FishhookMethod SwizzlingNSURLProtocol
0 likes · 18 min read
iOS Network Monitoring: NSURLProtocol, Hook Techniques, and NSURLSessionTaskMetrics
21CTO
21CTO
Jun 26, 2017 · Operations

From Lab Chemist to KVM Guru: A Veteran Ops Leader’s Journey

This interview chronicles Xiao Li’s unconventional path from a petroleum chemistry graduate to a senior operations director, highlighting his hands‑on experience with system administration, virtualization, cloud computing, and team management across major Chinese tech firms.

Cloud ComputingKVMOperations
0 likes · 9 min read
From Lab Chemist to KVM Guru: A Veteran Ops Leader’s Journey
Hujiang Design Center
Hujiang Design Center
Jun 26, 2017 · Product Management

Designing Effective Live‑Stream Reward Systems: A Practical Guide

This article explores the concept, value, and design considerations of tipping features in knowledge‑payment and live‑stream platforms, analyzes competitor implementations, and presents a detailed case study of CCtalk's reward system to help product teams create engaging and profitable tipping experiences.

Reward Designlive streamingproduct management
0 likes · 13 min read
Designing Effective Live‑Stream Reward Systems: A Practical Guide
Architecture Digest
Architecture Digest
Jun 26, 2017 · Backend Development

Common Interview Questions and Answers: A Cautionary Tale for Developers

This article compiles a wide range of interview questions and answers covering MySQL escaping, JavaScript memory leaks, PHP garbage collection, concurrency control, networking fundamentals, and system design, aiming to warn developers about knowledge gaps and encourage deeper technical learning.

JavaScriptPHPbackend
0 likes · 11 min read
Common Interview Questions and Answers: A Cautionary Tale for Developers
Tencent Advertising Technology
Tencent Advertising Technology
Jun 26, 2017 · Artificial Intelligence

Practical Feature Engineering and Optimization Tips for a Data Mining Competition

The author shares hands‑on experiences from a data‑mining contest, covering categorical feature handling, sliding‑window statistics, feature combination strategies, pandas performance tricks, file organization, and using nohup for remote Linux execution to improve model training efficiency.

Competitionpandas optimizationsliding-window
0 likes · 6 min read
Practical Feature Engineering and Optimization Tips for a Data Mining Competition
网易UEDC
网易UEDC
Jun 26, 2017 · Product Management

How the IKEA Effect Can Supercharge Your Product Design

This article explains the IKEA effect—a cognitive bias where users value products they help create—and outlines how designers can craft low‑effort, high‑reward tasks, align user skills and contexts, and integrate these principles into product experiences to boost engagement and loyalty.

Design thinkingIKEA effectProduct Design
0 likes · 11 min read
How the IKEA Effect Can Supercharge Your Product Design
Qunar Tech Salon
Qunar Tech Salon
Jun 26, 2017 · Artificial Intelligence

AIDevOps: Applying Artificial Intelligence to DevOps for Predictive Software Engineering

The article explores how artificial intelligence can transform DevOps by introducing predictive metrics, machine‑learning models, and intelligent automation to improve code review, defect forecasting, and overall software lifecycle management, while discussing current research, challenges, and future directions.

AISoftware Predictionautomation
0 likes · 14 min read
AIDevOps: Applying Artificial Intelligence to DevOps for Predictive Software Engineering
MaGe Linux Operations
MaGe Linux Operations
Jun 25, 2017 · Operations

Master Essential Linux Commands: A Quick Reference Guide

This article provides a concise, English‑language reference of essential Linux command‑line tools—including file navigation, viewing, system information, package management, network configuration, and service control—complete with example syntax and brief explanations for each command.

bashcommand-linesystem-administration
0 likes · 13 min read
Master Essential Linux Commands: A Quick Reference Guide