Research Article
Core Business Selection Based on Ant Colony Clustering Algorithm
Table 1
Tianjin Port Logistics Development Co., Ltd. patent and business income proportion table.
| | Project | Proportion of the number of technological innovation in totalinnovation | Proportion of income in total income |
| | Domestic shipping and cargo agents | 0 | 27.3% | | International shipping and cargo agents | 0 | 0.56% | | Pier horizontal transport | 30% | 20.5% | | Container yard operations | 35% | 37.1% | | Customs clearance | 0 | 0.56% | | Multimodal transportation | 5% | 1.4% | | Automotive logistics | 8% | 10% | | Bonded logistics | 1% | 0.42% | | Project logistics | 3% | 1.7% | | Hazardous material logistics | 8% | 0.42% |
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