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Model Perspective
Model Perspective
Jan 24, 2025 · Fundamentals

Mastering Weight Generation and Multi‑Criteria Evaluation Methods for Modeling Competitions

This article reviews common weight‑generation and multi‑criteria evaluation techniques—including AHP, entropy, TOPSIS, fuzzy evaluation, CRITIC, PCA, factor analysis, and DEA—explaining their mathematical foundations, advantages, and drawbacks to help competition participants choose the most suitable method for complex decision problems.

AHPDEAMulti-Criteria Evaluation
0 likes · 16 min read
Mastering Weight Generation and Multi‑Criteria Evaluation Methods for Modeling Competitions
Model Perspective
Model Perspective
Mar 13, 2024 · Operations

Evaluating City Efficiency with DEA’s CCR and BCC Models

This article introduces Data Envelopment Analysis (DEA) as a non‑parametric method for assessing relative efficiency of decision‑making units, explains the CCR and BCC models, and demonstrates their application in evaluating and comparing the efficiency of various U.S. cities using real‑world data.

BCCCCRDEA
0 likes · 9 min read
Evaluating City Efficiency with DEA’s CCR and BCC Models
Model Perspective
Model Perspective
Mar 14, 2023 · Operations

How Data Envelopment Analysis (DEA) Optimizes Airline Efficiency with Python

Data Envelopment Analysis (DEA) is a non‑parametric technique for evaluating relative efficiency of decision‑making units, with CRS and VRS models explained, followed by a Python implementation using PuLP to assess airline route efficiency and interpret overall, technical, and scale efficiencies.

CRSDEAData Envelopment Analysis
0 likes · 15 min read
How Data Envelopment Analysis (DEA) Optimizes Airline Efficiency with Python
Model Perspective
Model Perspective
Nov 7, 2022 · Operations

Essential Guide to Evaluation and Optimization Models: Resources & Algorithms

This curated list compiles recent articles on evaluation and optimization models, covering Data Envelopment Analysis, ANP, VIKOR, various grey analysis methods, competition ranking techniques, case studies, linear and integer programming, and a range of optimization algorithms with Python examples.

DEAPythonmodel evaluation
0 likes · 4 min read
Essential Guide to Evaluation and Optimization Models: Resources & Algorithms
Model Perspective
Model Perspective
Nov 7, 2022 · Operations

Understanding Data Envelopment Analysis (DEA): Principles, Models, and Applications

This article explains the concept of decision‑making units, the theory behind Data Envelopment Analysis, its linear‑programming models—including primal and dual forms—and how DEA evaluates relative efficiency and scale returns across multiple inputs and outputs.

DEAData Envelopment AnalysisLinear Programming
0 likes · 12 min read
Understanding Data Envelopment Analysis (DEA): Principles, Models, and Applications
Model Perspective
Model Perspective
Oct 5, 2022 · Operations

Evaluating University Efficiency with DEA and Virtual Decision Units

This article demonstrates how to assess the efficiency of four universities using Data Envelopment Analysis by constructing virtual decision units based on two input and three output indicators, formulating input‑oriented DEA models, and solving them to compare real and optimal performance.

DEAefficiency analysisoperations research
0 likes · 3 min read
Evaluating University Efficiency with DEA and Virtual Decision Units
Model Perspective
Model Perspective
Oct 1, 2022 · Operations

How Variable Returns to Scale DEA Reveals Input/Output Slack in a Two‑Stage Model

This article explains how variable‑returns‑to‑scale input‑oriented and output‑oriented DEA models use input and output slacks, introduces a two‑stage linear programming approach to identify non‑zero slacks, and defines full and weak efficiency through formal DEA definitions and illustrative decision‑unit examples.

DEALinear Programmingefficiency
0 likes · 6 min read
How Variable Returns to Scale DEA Reveals Input/Output Slack in a Two‑Stage Model
Model Perspective
Model Perspective
Sep 30, 2022 · Operations

Understanding Input‑ and Output‑Oriented DEA Models with Variable Returns to Scale

This article explains the input‑oriented and output‑oriented Data Envelopment Analysis (DEA) models under variable returns to scale, illustrates how efficiency frontiers are formed, demonstrates calculations with decision‑making units, and provides a practical example evaluating city efficiency using these concepts.

DEAData Envelopment Analysisoperations research
0 likes · 4 min read
Understanding Input‑ and Output‑Oriented DEA Models with Variable Returns to Scale
Model Perspective
Model Perspective
Sep 29, 2022 · Operations

Understanding Input‑Oriented DEA: Modeling Efficiency Frontiers

This article explains the input‑oriented Data Envelopment Analysis (DEA) model, detailing its constraints, variables, and interpretation of efficiency scores, and illustrates the method with a five‑decision‑unit example that visualizes the efficient frontier.

DEAefficiency analysisinput-oriented
0 likes · 4 min read
Understanding Input‑Oriented DEA: Modeling Efficiency Frontiers
Model Perspective
Model Perspective
Sep 3, 2022 · Operations

How DEA Transforms Industrial Technology Strength Evaluation: A Step‑by‑Step Guide

This article explains how Data Envelopment Analysis (DEA) is applied to assess the technological strength of industrial sectors, detailing indicator design principles, calculation steps, result interpretation, and actionable insights for improving productivity and competitiveness across Guangzhou’s industries.

DEAData Envelopment AnalysisIndustrial Evaluation
0 likes · 15 min read
How DEA Transforms Industrial Technology Strength Evaluation: A Step‑by‑Step Guide
Model Perspective
Model Perspective
Sep 2, 2022 · Operations

Unlocking Efficiency: How Data Envelopment Analysis (DEA) Evaluates Decision‑Making Units

This article explains the theory, models, and dual formulations of Data Envelopment Analysis (DEA), illustrating how it assesses the relative efficiency of decision‑making units using input‑output data, linear programming, and objective weight optimization.

DEAData Envelopment AnalysisEfficiency Evaluation
0 likes · 13 min read
Unlocking Efficiency: How Data Envelopment Analysis (DEA) Evaluates Decision‑Making Units
Model Perspective
Model Perspective
Aug 22, 2022 · Operations

Understanding DEA Models: CRS, VRS, and Efficiency Decomposition

This article explains the core concepts and notation of Data Envelopment Analysis (DEA), covering the CRS (CCR) and VRS (BCC) models, their primal and dual formulations, input‑ and output‑oriented approaches, and how overall, technical, and scale efficiencies are derived and interpreted.

CRSDEAProductivity
0 likes · 6 min read
Understanding DEA Models: CRS, VRS, and Efficiency Decomposition
Model Perspective
Model Perspective
May 30, 2022 · Fundamentals

How to Define the “Best” Object in Multi‑Criteria Evaluation Models

This article explains how to set the “best” reference in comprehensive evaluation models by introducing several modeling approaches—including full‑score, ideal‑object, TOPSIS, and DEA—along with the necessary terminology, weighting, and distance calculations.

DEATOPSISevaluation models
0 likes · 7 min read
How to Define the “Best” Object in Multi‑Criteria Evaluation Models