The Cosine Similarity Algorithm: TriBIG's Core Engine
At the center of the TriBIG market recommendation system is a cosine-similarity-based algorithm. It converts a company's export profile and each country's market demand profile into vectors, then calculates cosine similarity between them to recommend the most suitable export markets. The model is refreshed monthly based on Korea Customs Service export data and currently provides customized market recommendations to more than 3,500 companies.
Breaking Down the Vij Formula: The Market Fit Score
TriBIG's market fit score, Vij, is calculated using the following structure: Vij = (EMij × 45%) + (FMij × 45%) + 10. Here, EMij represents export market attractiveness, FMij represents company-market fit, and 10 is a base score. The final score is determined by combining multiple sub-variables under both EMij and FMij.
| Component | Weight | Sub-Variables | Data Source |
|---|---|---|---|
| EMij (Export Market Attractiveness) | 45% | Market size, growth rate, import growth, tariff rate | Korea Customs Service, UN Comtrade |
| FMij (Company-Market Fit) | 45% | Product-demand matching, competitive intensity, entry barriers | Export performance data, company profile |
| Base Score | 10 pts | Fixed value for minimum recommendation coverage | - |
How the Cosine Similarity Mechanism Works
Cosine similarity measures similarity based on the angle between two vectors. In TriBIG, the system builds a company export profile vector using product mix, export scale, and lead markets, and a country market demand vector using import volumes by product, growth rates, and supplier distribution. The higher the cosine similarity between the two vectors, the more suitable that market is considered for the company. Scores are normalized on a scale from 0, meaning unrelated, to 1, meaning a near-perfect match.
The Data Pipeline: Monthly Refresh
A key reason TriBIG maintains recommendation accuracy is its monthly data refresh cycle. Whenever Korea Customs trade statistics are updated, the vectors used by TriBIG are recalculated automatically. This allows market shifts, including tariff hikes, demand spikes, and the emergence of new competitors, to be reflected in recommendations without delay.
Reading the Bangladesh Market Vector
Within TriBIG, the Bangladesh market vector reflects a high import orientation toward RMG inputs, while growth in IT and electronics is accelerating sharply. Korean exporters of garment materials, machinery and equipment, and IT hardware show relatively high cosine similarity with Bangladesh. The country is especially likely to be recommended as an alternative market for product groups exposed to elevated tariff risk in the United States and the European Union.