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    Chapter and Conference Paper

    A Distributed Engine for Multi-query Processing Based on Predicates with Spark

    The core of Multi-query Optimization is to find the maximum common substructure of query graphs. However, this problem is equivalent to the weighted set cover problem, which is NP-complete. In this paper, we p...

    Bin Zhang, **min Sun, Liwei Bi in Web and Big Data. APWeb-WAIM 2021 Internat… (2021)

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    Chapter and Conference Paper

    The Generative Adversarial Network Based on Attention Mechanism for Image Defogging

    The image collected under the haze weather conditions has some obvious problems such as reduced contrast, reduced clarity and color distortion, which seriously reduces the image quality. Combining with deep le...

    Qingyi Zhang, Changhao Zhao, **angfen Zhang in Digital TV and Wireless Multimedia Communi… (2021)

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    Chapter and Conference Paper

    An Image Dehazing Algorithm Based on Adaptive Correction and Red Dark Channel Prior

    The dark channel prior defogging algorithm is one of the most representative image defogging algorithms. However, the restored images have problems such as halo effect, color distortion and so on. In view of t...

    Qingyi Zhang, Changhao Zhao, **angfen Zhang in Digital TV and Wireless Multimedia Communi… (2021)