Author

Hong Li

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Preprint Sep 2026

Approximating Prize-Collecting TSP below 1.556

The prize-collecting traveling salesperson problem is a variant of the metric traveling salesperson problem in which vertices may be left unvisited by paying their associated penalties. The objective is to minimize the length of the tour plus the total penalty of the unvisited vertices. Blauth, Klein, and N\"agele gave...

Hong Li · 0 citations

Review Open access Aug 2026

Indoor air pollution from cooking: emission characteristics, exposure risks, and health implications

Cooking is an indispensable activity in daily life and one of the major sources of indoor air pollution. Pollutants generated during cooking, including particulate matter (PM), ultrafine particles (UFPs), volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), carbonyl compounds, black carbon (BC)...

Yushi Gong, Jun-Ling Li, Hong Li et al. · Frontiers in Environmental S... · 0 citations