updated readme with the eda images (#3)
Browse files- updated readme with the eda images (a534d17cb2795cbd274d0d265908ed6d670c9c6a)
README.md
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@@ -69,26 +69,33 @@ Key features include:
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## Exploratory Data Analysis
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### Brand Distribution
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The treemap visualization provides a hierarchical view of market presence:
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- Rolex dominates with the highest representation, reflecting its market leadership
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- Omega and Seiko follow as major players, indicating strong market presence
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- Distribution reveals clear tiers in the luxury watch market
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- Brand representation correlates with market positioning and availability
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[Treemap Image]
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### Feature Correlations
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The correlation matrix reveals important market dynamics:
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- **Size vs. Year**: Positive correlation indicating a trend toward larger case sizes in modern watches
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- **Price vs. Size**: Moderate correlation showing larger watches generally command higher prices
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- **Price vs. Year**: Notably low correlation, demonstrating that vintage watches maintain value
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- Each feature contributes unique information, validated by the lack of strong correlations across all variables
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[Correlation Matrix Image]
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### Market Structure Visualizations
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#### UMAP Analysis
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The UMAP visualization unveils complex market positioning dynamics:
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- Rolex maintains a dominant central position around coordinates (0, -5), showing unparalleled brand cohesion
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- Omega and Breitling cluster in the left segment, indicating strategic market alignment
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- Premium timepieces (yellower/greener hues) show tighter clustering, suggesting standardized luxury attributes
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- Smaller, specialized clusters indicate distinct horological collections and style categories
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[UMAP Image]
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#### t-SNE Visualization
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T-SNE analysis reveals clear market stratification with logarithmic pricing from $50 to $3.2M:
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- **Entry-Level Segment ($50-$4,000)**
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- Anchored by Seiko in the left segment
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@@ -109,12 +118,13 @@ T-SNE analysis reveals clear market stratification with logarithmic pricing from
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- Cartier demonstrates strategic positioning between luxury and mid-range
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- **Ultra-Luxury Segment ($35,000-$3.2M)**
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- Dominated by Patek Philippe and Audemars Piguet
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- Clear separation in right segment
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- Strong brand clustering indicating market alignment
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[t-SNE Image]
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#### PCA Analysis
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Principal Component Analysis provides robust market insights with 56.6% total explained variance:
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- **First Principal Component (31.3%)**
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- Predominantly captures price dynamics
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@@ -125,28 +135,33 @@ Principal Component Analysis provides robust market insights with 56.6% total ex
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- **Brand Trajectory**
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- Natural progression from Seiko through Longines, Breitling, and Omega
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- Culminates in Rolex and Patek Philippe
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-
- Diagonal trend line serves as market positioning indicator
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- **Market Implications**
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- Successful brands occupy optimal positions along both dimensions
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- Clear differentiation between adjacent competitors
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- Evidence of strategic market positioning
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[PCA Image]
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#### Network Visualizations
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**Force-Directed Graph**
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The force-directed layout reveals natural market clustering:
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- Richard Mille's peripheral positioning highlights ultra-luxury strategy
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- Dense central clustering shows mainstream luxury brand interconnectivity
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- Edge patterns reveal shared market characteristics
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- Node proximity indicates competitive positioning
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[Force-Directed Graph Image]
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**Starburst Visualization**
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Radial architecture provides a hierarchical market perspective:
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- Central node represents overall market
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- Green nodes show brand territories with strategic spacing
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- Blue peripheral nodes indicate individual timepieces
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- Node density reveals:
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- Segment diversification
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- Balanced spacing between brand nodes indicates market segmentation
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[Starburst Graph Image]
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## Ethics and Limitations
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## Note
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- The dataset is optimized for PyTorch Geometric operations
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- Recommended to use GPU for large-scale operations
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- Consider batch processing for memory efficiency
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## Exploratory Data Analysis
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70 |
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### Brand Distribution
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+
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+
![Brand Distribution Treemap](https://raw.githubusercontent.com/calicartels/watch-market-gnn-code/main/images/2.png)
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+
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The treemap visualization provides a hierarchical view of market presence:
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76 |
- Rolex dominates with the highest representation, reflecting its market leadership
|
77 |
+
- Omega and Seiko follow as major players, indicating a strong market presence
|
78 |
- Distribution reveals clear tiers in the luxury watch market
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79 |
- Brand representation correlates with market positioning and availability
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80 |
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|
81 |
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### Feature Correlations
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+
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+
![Feature Correlation Matrix](https://raw.githubusercontent.com/calicartels/watch-market-gnn-code/main/images/3.png)
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+
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The correlation matrix reveals important market dynamics:
|
87 |
- **Size vs. Year**: Positive correlation indicating a trend toward larger case sizes in modern watches
|
88 |
- **Price vs. Size**: Moderate correlation showing larger watches generally command higher prices
|
89 |
- **Price vs. Year**: Notably low correlation, demonstrating that vintage watches maintain value
|
90 |
- Each feature contributes unique information, validated by the lack of strong correlations across all variables
|
91 |
|
|
|
92 |
|
93 |
### Market Structure Visualizations
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94 |
|
95 |
#### UMAP Analysis
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+
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+
![UMAP Visualization](https://raw.githubusercontent.com/calicartels/watch-market-gnn-code/main/images/4.png)
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+
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The UMAP visualization unveils complex market positioning dynamics:
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100 |
- Rolex maintains a dominant central position around coordinates (0, -5), showing unparalleled brand cohesion
|
101 |
- Omega and Breitling cluster in the left segment, indicating strategic market alignment
|
|
|
103 |
- Premium timepieces (yellower/greener hues) show tighter clustering, suggesting standardized luxury attributes
|
104 |
- Smaller, specialized clusters indicate distinct horological collections and style categories
|
105 |
|
|
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106 |
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#### t-SNE Visualization
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+
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+
![t-SNE Analysis](https://raw.githubusercontent.com/calicartels/watch-market-gnn-code/main/images/5.png)
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+
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111 |
T-SNE analysis reveals clear market stratification with logarithmic pricing from $50 to $3.2M:
|
112 |
- **Entry-Level Segment ($50-$4,000)**
|
113 |
- Anchored by Seiko in the left segment
|
|
|
118 |
- Cartier demonstrates strategic positioning between luxury and mid-range
|
119 |
- **Ultra-Luxury Segment ($35,000-$3.2M)**
|
120 |
- Dominated by Patek Philippe and Audemars Piguet
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121 |
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- Clear separation in the right segment
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- Strong brand clustering indicating market alignment
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124 |
#### PCA Analysis
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125 |
+
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+
![PCA Visualization](https://raw.githubusercontent.com/calicartels/watch-market-gnn-code/main/images/6.png)
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127 |
+
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Principal Component Analysis provides robust market insights with 56.6% total explained variance:
|
129 |
- **First Principal Component (31.3%)**
|
130 |
- Predominantly captures price dynamics
|
|
|
135 |
- **Brand Trajectory**
|
136 |
- Natural progression from Seiko through Longines, Breitling, and Omega
|
137 |
- Culminates in Rolex and Patek Philippe
|
138 |
+
- Diagonal trend line serves as a market positioning indicator
|
139 |
- **Market Implications**
|
140 |
- Successful brands occupy optimal positions along both dimensions
|
141 |
- Clear differentiation between adjacent competitors
|
142 |
- Evidence of strategic market positioning
|
143 |
|
|
|
144 |
|
145 |
#### Network Visualizations
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146 |
|
147 |
+
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148 |
**Force-Directed Graph**
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149 |
+
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150 |
+
![Force-Directed Graph](https://raw.githubusercontent.com/calicartels/watch-market-gnn-code/main/images/7.png)
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151 |
+
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152 |
The force-directed layout reveals natural market clustering:
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153 |
- Richard Mille's peripheral positioning highlights ultra-luxury strategy
|
154 |
- Dense central clustering shows mainstream luxury brand interconnectivity
|
155 |
- Edge patterns reveal shared market characteristics
|
156 |
- Node proximity indicates competitive positioning
|
157 |
|
|
|
158 |
|
159 |
**Starburst Visualization**
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160 |
+
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161 |
+
![Starburst Graph](https://raw.githubusercontent.com/calicartels/watch-market-gnn-code/main/images/8.png)
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162 |
+
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163 |
Radial architecture provides a hierarchical market perspective:
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164 |
+
- Central node represents the overall market
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165 |
- Green nodes show brand territories with strategic spacing
|
166 |
- Blue peripheral nodes indicate individual timepieces
|
167 |
- Node density reveals:
|
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|
170 |
- Segment diversification
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171 |
- Balanced spacing between brand nodes indicates market segmentation
|
172 |
|
|
|
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|
173 |
|
174 |
## Ethics and Limitations
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175 |
|
|
|
347 |
## Note
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348 |
- The dataset is optimized for PyTorch Geometric operations
|
349 |
- Recommended to use GPU for large-scale operations
|
350 |
+
- Consider batch processing for memory efficiency
|