Near-infrared image sensors are widely used in fields such as material identification,machine vision,and autonomous driving.Lead sulfide colloidal quantum dot-based infrared photodiodes can be integrated with sil⁃icon...Near-infrared image sensors are widely used in fields such as material identification,machine vision,and autonomous driving.Lead sulfide colloidal quantum dot-based infrared photodiodes can be integrated with sil⁃icon-based readout circuits in a single step.Based on this,we propose a photodiode based on an n-i-p structure,which removes the buffer layer and further simplifies the manufacturing process of quantum dot image sensors,thus reducing manufacturing costs.Additionally,for the noise complexity in quantum dot image sensors when capturing images,traditional denoising and non-uniformity methods often do not achieve optimal denoising re⁃sults.For the noise and stripe-type non-uniformity commonly encountered in infrared quantum dot detector imag⁃es,a network architecture has been developed that incorporates multiple key modules.This network combines channel attention and spatial attention mechanisms,dynamically adjusting the importance of feature maps to en⁃hance the ability to distinguish between noise and details.Meanwhile,the residual dense feature fusion module further improves the network's ability to process complex image structures through hierarchical feature extraction and fusion.Furthermore,the pyramid pooling module effectively captures information at different scales,improv⁃ing the network's multi-scale feature representation ability.Through the collaborative effect of these modules,the network can better handle various mixed noise and image non-uniformity issues.Experimental results show that it outperforms the traditional U-Net network in denoising and image correction tasks.展开更多
传统企业合作伙伴推荐方法过度依赖技术特征而忽视多维因素影响。本研究旨在探究企业合作关系的多维影响因素及推荐机制,为企业寻找合适合作伙伴和制定有效创新策略提供技术支持。本研究提出一种基于交叉多头对比学习网络(cross-attenti...传统企业合作伙伴推荐方法过度依赖技术特征而忽视多维因素影响。本研究旨在探究企业合作关系的多维影响因素及推荐机制,为企业寻找合适合作伙伴和制定有效创新策略提供技术支持。本研究提出一种基于交叉多头对比学习网络(cross-attention multi-head contrastive network,CAMC-Net)的企业合作伙伴推荐方法,融合企业、专利和政策数据,通过交叉多头注意力机制建模企业关系的双向互补特性,并引入对比学习策略优化企业表示空间分布。以新能源产业为例,在专利IPC(International Patent Classification)分类号为H02P和H10的企业合作数据集上进行验证,CAMC-Net模型在企业关系识别任务上AUC(area under the curve)分别达到0.9425和0.9251,准确率分别为0.8644和0.8387,F1值分别达到0.8707和0.8471,优于基线模型。通过消融实验证明了政策数据与模型组件的有效性。但现有的研究数据主要基于单一领域,未来需探索跨领域企业合作伙伴推荐方法;同时,模型缺乏对多模态数据的考虑,需要探索更高效的多模态特征融合策略。展开更多
基金Supported by the National key research and development program in the 14th five year plan 2021YFA1200700)the National Natural Science Foundation of China(62535018,62431025,62561160113)the Natural Science Foundation of Shanghai(23ZR1473400).
摘要Near-infrared image sensors are widely used in fields such as material identification,machine vision,and autonomous driving.Lead sulfide colloidal quantum dot-based infrared photodiodes can be integrated with sil⁃icon-based readout circuits in a single step.Based on this,we propose a photodiode based on an n-i-p structure,which removes the buffer layer and further simplifies the manufacturing process of quantum dot image sensors,thus reducing manufacturing costs.Additionally,for the noise complexity in quantum dot image sensors when capturing images,traditional denoising and non-uniformity methods often do not achieve optimal denoising re⁃sults.For the noise and stripe-type non-uniformity commonly encountered in infrared quantum dot detector imag⁃es,a network architecture has been developed that incorporates multiple key modules.This network combines channel attention and spatial attention mechanisms,dynamically adjusting the importance of feature maps to en⁃hance the ability to distinguish between noise and details.Meanwhile,the residual dense feature fusion module further improves the network's ability to process complex image structures through hierarchical feature extraction and fusion.Furthermore,the pyramid pooling module effectively captures information at different scales,improv⁃ing the network's multi-scale feature representation ability.Through the collaborative effect of these modules,the network can better handle various mixed noise and image non-uniformity issues.Experimental results show that it outperforms the traditional U-Net network in denoising and image correction tasks.
摘要传统企业合作伙伴推荐方法过度依赖技术特征而忽视多维因素影响。本研究旨在探究企业合作关系的多维影响因素及推荐机制,为企业寻找合适合作伙伴和制定有效创新策略提供技术支持。本研究提出一种基于交叉多头对比学习网络(cross-attention multi-head contrastive network,CAMC-Net)的企业合作伙伴推荐方法,融合企业、专利和政策数据,通过交叉多头注意力机制建模企业关系的双向互补特性,并引入对比学习策略优化企业表示空间分布。以新能源产业为例,在专利IPC(International Patent Classification)分类号为H02P和H10的企业合作数据集上进行验证,CAMC-Net模型在企业关系识别任务上AUC(area under the curve)分别达到0.9425和0.9251,准确率分别为0.8644和0.8387,F1值分别达到0.8707和0.8471,优于基线模型。通过消融实验证明了政策数据与模型组件的有效性。但现有的研究数据主要基于单一领域,未来需探索跨领域企业合作伙伴推荐方法;同时,模型缺乏对多模态数据的考虑,需要探索更高效的多模态特征融合策略。