Urban river Rivers 5 Water quality 3 water quality 3 Decision trees 2 River pollution 2 Semantics 2 river water 2 Adaptive boosting 1 Alkalinity 1 Ammonia 1 Anacostia River 1 Annual cycle 1 Antennas 1 Anthropogenic influence 1 Aquatic ecosystems 1 Aquatic life 1 Aquatic organisms 1 Baseflows 1 Boosting algorithm 1 Cultural heritages 1 Cultural identity 1 Deep learning 1 Deep neural networks 1 Ecosystem-specific water quality index 1 Entry point 1 Environmental technology 1 Genetic algorithms 1 Gradient boosting 1 Groundwater 1