Buildings are an important part of the urban scene.In this paper, a novel instance segmentation framework for 3D mesh models in urban scenes is proposed.Unlike existing works focusing on semantic segmentation of urban scenes, this work focuses on detecting and segmenting 3D building instances even if they are attached and occluded in a large and im
Predicting the maximum available frequency of short-wave communication presents the challenges of low prediction accuracy of classical prediction model methods and difficulty in obtaining training set data for machine learning prediction methods.To address this issue, a model-data dual-driven bidirectional gated recurrent unit (BiGRU) network for s
This paper investigates the effect of recycled gravel obtained from low (Gl) or medium (Gm) concrete grade on fresh property of concrete (slump), mechanical properties (compressive-splitting tensile strength) and mass transport properties (ISAT-sorptivity) of concrete containing dolomite as a natural coarse aggregate.Concrete specimens were prepare
With the continuous development of network communication technology, the development of simulation training system based on the power of the Internet has been studied.Chemical markbroyard.com enterprises themselves have high risks, so the issue of safe production is more and more serious.In this paper, a simulation training system suitable for chem