state-of-the-art method
New research enables a robot to chart a better course
In the aftermath of a devastating earthquake, unpiloted aerial vehicles (UAVs) could fly through a collapsed building to map the scene, giving rescuers information they need to quickly reach survivors. But this remains an extremely challenging problem for an autonomous robot, which would need to swiftly adjust its trajectory to avoid sudden obstacles while staying on course. Researchers from MIT and the University of Pennsylvania developed a new trajectory-planning system that tackles both challenges at once. Their technique enables a UAV to react to obstacles in milliseconds while staying on a smooth flight path that minimizes travel time. Their system uses a new mathematical formulation that ensures the robot travels safely to its destination along a feasible path, and that is less computationally intensive than other techniques.
CNNpack: Packing Convolutional Neural Networks in the Frequency Domain
Yunhe Wang, Chang Xu, Shan You, Dacheng Tao, Chao Xu
Deep convolutional neural networks (CNNs) are successfully used in a number of applications. However, their storage and computational requirements have largely prevented their widespread use on mobile devices. Here we present an effective CNN compression approach in the frequency domain, which focuses not only on smaller weights but on all the weights and their underlying connections. By treating convolutional filters as images, we decompose their representations in the frequency domain as common parts (i.e., cluster centers) shared by other similar filters and their individual private parts (i.e., individual residuals). A large number of low-energy frequency coefficients in both parts can be discarded to produce high compression without significantly compromising accuracy. We relax the computational burden of convolution operations in CNNs by linearly combining the convolution responses of discrete cosine transform (DCT) bases. The compression and speed-up ratios of the proposed algorithm are thoroughly analyzed and evaluated on benchmark image datasets to demonstrate its superiority over state-of-the-art methods.
A Datasets 568 A.1 Dataset format
For each dataset, all unprocessed raw files are represented in .json The datasets are subject to the MIT license. In this subsection, we further analyze the link prediction from the various models applied in the study. Table 6 and 7 represent the effect of link prediction on different datasets from various distinct. In this subsection, we further analyze the node classification results from various models.
Appendix A Further Empirical Studies
As reported in Table A3, PS-MT consistently shows lower distances than Dual Teacher shows. The STD is similarly between 2 and over 50 times smaller. PS-MT's teachers (albeit they may have distinct characteristics) potentially becomes similar distances to the student at each epoch. Comparative analysis of performance based on different CutMix variations. We further report additional quantitative results encompassing three different splits: original high-quality set, blended set, and blended high-quality set .
Switching Temporary Teachers for Semi-Supervised Semantic Segmentation
The teacher-student framework, prevalent in semi-supervised semantic segmentation, mainly employs the exponential moving average (EMA) to update a single teacher's weights based on the student's. However, EMA updates raise a problem in that the weights of the teacher and student are getting coupled, causing a potential performance bottleneck. Furthermore, this problem may become more severe when training with more complicated labels such as segmentation masks but with few annotated data. This paper introduces Dual Teacher, a simple yet effective approach that employs dual temporary teachers aiming to alleviate the coupling problem for the student.