Supply of ecological products based on heterogeneity of public goods Similarity Search Algorithm over Data Supply Chain Based on Key Points Practical Cryptanalysis of a Public Key Cryptosystem Based on the Morphism of Polynomials Problem Creating Inclusive Global Value Chains under the BRI from the Perspective of Public Goods Supply and Demand A reseArch of theoreticAl frAmework for ecologicAl trAnsportAtion IntegratIng ecologIcal cIvIlIzatIon concept Into the envIronmental legal InstItutIon Contents of Ecological Economy,Vol.15,2019 Trajectory Big Data Processing Based on Frequent Activity Local Community Detection Based on Network Motifs Market-Based Solutions to Overcapacity:Principles and Measures