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| 1 | A SAR Image Segment Method Using Gray Level Reduction Based on Graph in ICA Space显示文摘This paper proposes a new SAR image segmentation method based on graph and gray level reduction in Independent component analysis(ICA) space. Firstly,according to the grayscale information of SAR image, effective use of gray level reduction for initial segmentation can group the pixels with same or similar values to the same homogeneous region, which can address the problem of over-segmentation. Secondly, the features of regions are extracted in ICA space, and then the similarity degree can be calculated by Euclidean distance. The initial regions are merged in fully connected graph based on minimum spanning tree in ICA space. The process of region merging is divided into two phases; the first phrase is merging the different regions with the largest similarity degree, the second will focus on updating the fully connected graph for iteration. Finally, experimental and comparative results on synthetic and real SAR images verify the efficiency of the proposed algorithm. | JI Jian LYU Xiaojia YAO Yafeng | 2017 | Chinese Journal of Electronics2017，26，4： | 5 |
| 2 | Finding Deceptive Opinion Spam by Correcting the Mislabeled Instances显示文摘Assessing the trustworthiness of reviews is a key in natural language processing and computational linguistics. Previous work mainly focuses on some heuristic strategies or simple supervised learning methods, which limit the performance of this task. This paper presents a new approach, from the viewpoint of correcting the mislabeled instances, to find deceptive opinion spam. Partition a dataset into several subsets, construct a classifier set for each subset and select the best one to evaluate the whole dataset. Error variables are defined to compute the probability that the instances have been mislabeled. The mislabeled instances are corrected based on two threshold schemes, ma jority and non-objection. The results display significant improvements in our method in contrast to the existing baselines. | REN Yafeng JI Donghong YIN Lan ZHANG Hongbin | 2015 | Chinese Journal of Electronics2015，24，1： | 2 |
| 3 | Temperature estimation by oxygen-stable record over the past 200 ka in Zoigê basin显示文摘 | Jinglu Wu Sumin Wang Yafeng Shi Lei Ji | 2000 | Science in China Series D: Earth Sciences2000，，6： | 1 |
| 4 | Temperature estimation by oxygen-stable record over the past 200 ka in Zoigê basin显示文摘 | Jinglu Wu Sumin Wang Yafeng Shi Lei Ji | 2000 | Science in China Series D: Earth Sciences2000，，6： | 1 |
| 5 | Increased expression of transgene in stably transformed cells of Dunaliella salina by matrix attachment regions显示文摘 | Tianyun Wang Lexun Xue Weihong Hou Baosheng Yang Yurong Chai Xiang Ji Yafeng Wang | 2007 | Applied Microbiology and Biotechnology2007，，3： | 1 |
| 6 | Interpersonal coordination in schizophrenia:a concise update on paradigms,computations,and neuroimaging findings显示文摘Social function deficits are a ubiquitous manifestation of many psychiatric disorders including schizophrenia(Burns,2006;Green et al,2015;Schilbach,2016).Patients with schizophrenia(PSZ)exhibit a variety of abnormalities in social cognition related to social perception,facial emotion recognition,mentalization,and interpersonal coordination(Turetsky et al,2007;Schilbach,2016;Green et al,2019). | Yafeng Pan Yalan Wen Yajie Wang Leonhard Schilbach Ji Chen | 2023 | Psychoradiology2023，3，1： | 0 |
| 7 | Effect of Ball Scribing on Power Loss Separation of Fe-3%Si Grain-oriented Silicon Steel显示文摘Power loss of Fe-3%Sigrain-oriented silicon steelwas measured after ballscribing with different spacing using a self-designed tool.Three different sections of power loss,including hysteresis loss,abnormalloss,and eddy current loss,were measured and calculated,respectively.The loss variation and ratio were analyzed based on the experimentaldata.At 1.0 T,hysteresis loss of tested steelwith scribing spacing of 8 mm descends by 8.2% compared to samples without scribing,which is similar to the totalloss variation,and abnormalloss descends by 16.8%.At 1.0 T,hysteresis loss ratio of the steelwith scribing spacing of 16 mm ascends from 55.7% to 57.9%,and eddy current loss increases from 17.4% to 24.1%,while abnormalloss descends from 26.9% to 23.7%.The experimentalresults show that the reduction of power loss after scribing is mainly due to decreasing of hysteresis loss and abnormalloss. | 王浩 李长生 ZHAN Jianbo YU Zhenhua JI Yafeng WANG Guanglei PERIN Deniz | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，2： | 0 |
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