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model selection

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Model Perspective
Model Perspective
Feb 23, 2025 · Fundamentals

From Techniques to Insight: Building a Modeling Mindset and Inner Skill

The article explains how mastering mathematical modeling requires moving beyond surface techniques to develop a deep mindset (“心法”) and long‑term inner skill (“内功”), emphasizing reflective practice, flexible model selection, and continuous improvement for real‑world problem solving.

inner skilllearning strategiesmathematical modeling
0 likes · 5 min read
From Techniques to Insight: Building a Modeling Mindset and Inner Skill
Model Perspective
Model Perspective
Jun 28, 2024 · Fundamentals

Why Relying on Standard Models Stalls Math Modeling Competitions

Many participants in math modeling contests fall into the trap of blindly applying familiar models, which limits creativity and leads to mismatched solutions; this article examines the root causes, illustrates with a case study on illegal wildlife trade, and offers practical strategies to deepen problem understanding and foster innovative modeling approaches.

Case Studycompetitioninnovation
0 likes · 7 min read
Why Relying on Standard Models Stalls Math Modeling Competitions
Model Perspective
Model Perspective
May 21, 2024 · Fundamentals

How to Turn Mathematical Modeling from Theory into Real‑World Solutions

This article outlines practical steps—understanding problem background, gathering quality data, selecting appropriate models, solving and analyzing them, and applying results—to ensure mathematical modeling moves beyond theory and effectively addresses real-world issues.

Case Studydata collectionmathematical modeling
0 likes · 9 min read
How to Turn Mathematical Modeling from Theory into Real‑World Solutions
Alimama Tech
Alimama Tech
Apr 17, 2024 · Artificial Intelligence

Applying Large Language Models to Advertising Copy Generation

The article examines how large language models can streamline advertising copy creation by addressing format diversity, creativity, and new media demands, detailing model evaluation, fine‑tuning of Chinese‑adapted LLMs—ultimately selecting QWen 1.5‑7B—and showing that deployment boosts copy quality, click‑through and conversion rates while outlining future personalization and data‑efficient scaling.

AIFine-tuningLLM
0 likes · 18 min read
Applying Large Language Models to Advertising Copy Generation
Sohu Tech Products
Sohu Tech Products
Dec 27, 2023 · Artificial Intelligence

OCR-Based Video Review System: Technology Selection, Optimization, and Model Fine-Tuning

An OCR‑based video review system using PaddleOCR’s DB detector and SVTR recognizer, combined with multi‑level frame deduplication, message‑queue task decoupling, Redis prioritization, and dynamic thread‑pool scheduling, was fine‑tuned on 5 000 samples to cut daily frames from 794 million to 3.6 million, achieving automated detection of over 230 abnormal videos per day and replacing three manual reviewers, with future plans for GPU acceleration and cross‑instance GRPC dispatch.

AIFine-tuningMultithreading
0 likes · 20 min read
OCR-Based Video Review System: Technology Selection, Optimization, and Model Fine-Tuning
DataFunSummit
DataFunSummit
Dec 26, 2023 · Artificial Intelligence

Applying Causal Inference Tools for Growth Scenarios in Industry

This article explains why causal inference tools are essential for industrial growth, outlines data‑flow standards such as randomized controlled trials, discusses model selection including causal forests and policy learning, and describes evaluation, offline simulation, and resource‑constrained optimization for deploying causal models in production.

AIOptimizationcausal forest
0 likes · 12 min read
Applying Causal Inference Tools for Growth Scenarios in Industry
php中文网 Courses
php中文网 Courses
Aug 14, 2023 · Artificial Intelligence

Guide to the Five Most Powerful Large Language Models and How to Choose Them

This article explains the fundamentals of modern large language models, outlines the top five most powerful LLMs—including GPT‑4, Claude 2, Llama 2, Orca, and Cohere—and provides practical guidance on selecting and applying them across business and development use cases.

AI applicationsClaude 2GPT-4
0 likes · 9 min read
Guide to the Five Most Powerful Large Language Models and How to Choose Them
Model Perspective
Model Perspective
Jan 15, 2023 · Artificial Intelligence

Mastering Model Evaluation: Key Metrics, Validation Techniques, and Diagnostics

This guide explains essential evaluation metrics for classification and regression models—including confusion matrix, ROC/AUC, R², and main performance indicators—covers model selection strategies such as train‑validation‑test splits, k‑fold cross‑validation, and regularization techniques, and discusses bias‑variance trade‑offs and diagnostic tools.

cross-validationevaluation metricsmachine learning
0 likes · 6 min read
Mastering Model Evaluation: Key Metrics, Validation Techniques, and Diagnostics
DataFunTalk
DataFunTalk
Nov 26, 2022 · Artificial Intelligence

Human‑Centric Design for AI/NLP Document Extraction and Knowledge‑Graph Deployment

The article explains how combining human expertise with AI techniques—through problem decomposition, model selection, feature engineering, and knowledge‑graph construction—enables practical NLP solutions for document extraction and intelligent Q&A, illustrating the process with contract‑field extraction case studies.

AINLPdocument extraction
0 likes · 14 min read
Human‑Centric Design for AI/NLP Document Extraction and Knowledge‑Graph Deployment
Model Perspective
Model Perspective
Sep 25, 2022 · Fundamentals

What Is the Underlying Logic of Mathematical Modeling?

Mathematical modeling follows a systematic logic—starting from problem definition, variable analysis and hypothesis formation, through model selection, construction, solution, and interpretation—emphasizing quantification, appropriate model application, computational solving, and honest explanation to reliably address complex real‑world problems.

mathematical modelingmodel selectionproblem solving
0 likes · 6 min read
What Is the Underlying Logic of Mathematical Modeling?
Model Perspective
Model Perspective
Aug 10, 2022 · Fundamentals

How to Test Residuals for White Noise and Choose ARMA Models with AIC/BIC

This article explains why residuals of an ARMA model should be white noise, how to use the Q‑test to detect autocorrelation, and how AIC and BIC criteria balance model fit against complexity for selecting the most appropriate ARMA specification.

AICARMABIC
0 likes · 3 min read
How to Test Residuals for White Noise and Choose ARMA Models with AIC/BIC
Model Perspective
Model Perspective
Aug 1, 2022 · Fundamentals

How to Build and Forecast ARMA Models: A Step-by-Step Guide

This article explains the process of constructing ARMA models, covering model identification, order selection using the AIC criterion, parameter estimation (including Python implementation), and diagnostic testing such as Ljung‑Box, before demonstrating how to generate forecasts from the fitted model.

AICARMAforecasting
0 likes · 4 min read
How to Build and Forecast ARMA Models: A Step-by-Step Guide
Python Programming Learning Circle
Python Programming Learning Circle
May 10, 2022 · Artificial Intelligence

Seven Classic Regression Models for Machine Learning

This article introduces regression analysis and explains why it is essential for predictive modeling, then details seven widely used regression techniques—including linear, logistic, polynomial, stepwise, ridge, lasso, and elastic‑net—while offering guidance on selecting the most appropriate model for a given dataset.

lasso regressionlinear regressionlogistic regression
0 likes · 13 min read
Seven Classic Regression Models for Machine Learning
Tencent Advertising Technology
Tencent Advertising Technology
May 28, 2018 · Artificial Intelligence

Winning Approach of the Tencent Advertising Algorithm Competition: Feature Engineering, Model Selection, and Future Work

The team from Jilin University, Harbin Institute of Technology, and Beijing University of Posts and Telecommunications shares their winning strategy for the Tencent Advertising Algorithm Competition, detailing their feature engineering, model selection, and future work to handle large‑scale data challenges.

Gradient BoostingTencentadvertising
0 likes · 4 min read
Winning Approach of the Tencent Advertising Algorithm Competition: Feature Engineering, Model Selection, and Future Work
Tencent Advertising Technology
Tencent Advertising Technology
Jun 16, 2017 · Artificial Intelligence

Weekly Champion Insights from the Tencent Social Ads Algorithm Competition – The ThreeIdiots Team

The ThreeIdiots team shares their experience winning the weekly champion in Tencent's social ads algorithm contest, detailing their feature engineering strategy, time‑based data splitting, handling of large‑scale data, and model choices such as LightGBM and FM, while emphasizing the importance of thoughtful feature extraction over extensive parameter tuning.

Feature EngineeringTencentalgorithm competition
0 likes · 7 min read
Weekly Champion Insights from the Tencent Social Ads Algorithm Competition – The ThreeIdiots Team
Tencent Advertising Technology
Tencent Advertising Technology
Jun 9, 2017 · Artificial Intelligence

Sharing Data Analysis Techniques for Tencent Competition

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.

Feature Engineeringbusiness understandingcompetition strategy
0 likes · 7 min read
Sharing Data Analysis Techniques for Tencent Competition
Model Perspective
Model Perspective
Feb 20, 2016 · Fundamentals

What Is the Underlying Logic Behind Mathematical Modeling?

This article explains the logical steps of mathematical modeling—from problem definition, variable analysis, and quantification, through model selection, building, solving, and interpretation—highlighting how existing knowledge, appropriate model use, and honest reporting form the core of effective problem solving.

logicmathematical modelingmodel selection
0 likes · 6 min read
What Is the Underlying Logic Behind Mathematical Modeling?