The complexity of business and information systems(IS)alignment is a growing concern for researchers and practitioners alike.The extant research on alignment architecture fails to consider the human viewpoint,which ma...The complexity of business and information systems(IS)alignment is a growing concern for researchers and practitioners alike.The extant research on alignment architecture fails to consider the human viewpoint,which makes it difficult to embrace emergent complexity.This paper contributes to the extant literature in the following ways.First,we combine an enterprise architecture(EA)framework with a human viewpoint to address alignment issues in the architecture design phase;second,we describe a dynamic alignment model by developing a humancentered meta-model that explains first-and second-order changes and their effects on alignment evolution.This paper provides better support for the theoretical research and the practical application of dynamic alignment.展开更多
Nam Cao and Lu Xun are among high-profile writers who gain wide appreciation. The movements of literary assert this over the latter half of recent century in our country. That reality persistently points us to an urge...Nam Cao and Lu Xun are among high-profile writers who gain wide appreciation. The movements of literary assert this over the latter half of recent century in our country. That reality persistently points us to an urgent need for researches on Nam Cao and Lu Xun. Tints of literary worldviews of Nam Cao and Lu Xun, though upon which numberless research works, both domestic and foreign, have provided multi-directional insights and exploration of artistic creativities, remain misevaluated. B ich Thu, the author of Nam Cao, His Life and Legacies, counted out 191 articles and books themed Nam Cao. They were edited by writers of Nam Cao＇s generation namely Nguyen Huy Tuong, Nguyen Dinh Thi, To Hoai and Nguyen Hong, and even distinguished scholars such as Ha Minh Duc, Phong Le and Nguyen Dang Manh, so on. Regarding Lu Xun, there is no denying the fact of his brilliant artistic ideology. Although Vietnamese readers have gained a late knowledge of him for just a half of century, his name is laid somewhere in the heart of our people, integrally and consistently. Vietnam＇s reader generations restlessly learn about and research on Lu Xun. A pioneering merit badge should be rewarded to the renowned literary critic Dang Thai Mai, for his introduction and translation of Lu Xun to Vietnamese readers since 1943. The most interesting coincidence of Nam Cao and Lu Xun is that their profiles are imbued with the characters in their compositions. Mentioning Lu Xun cannot help a reference to AQ, meanwhile the name ofNam Cao apparently recalls a Philistine Chi. AQ as well as Philistine Chi have become characters of the society＇s spiritual life and long live with the eternal brilliance of their two creators. That coincidence draws countless number of researchers. The ＂matching point＂, referring to the subject of farmers and intellectuals, between Nam Cao and Lu Xun＇s works has been explored to some certain extent. This elicitly invites us for deeper studies. The author of this article, in response to such invitation, delves into the subject with respect to characterization of intellectuals in Nam Cao and Lu Xun＇s short stories.展开更多
Accurate panoptic segmentation of 3D point clouds in outdoor scenes is critical for the success of applications such as autonomous driving and robot navigation.Existing methods in this area typically assume that the d...Accurate panoptic segmentation of 3D point clouds in outdoor scenes is critical for the success of applications such as autonomous driving and robot navigation.Existing methods in this area typically assume that the differences between instances are greater than the differences between points belonging to the same instance and use heuristic techniques for segmentation.However,this assumption may not hold in real scenes with occlusion and noise.In addition,most of the previous methods formulate point-wise embedding learning and instance clustering as two decoupled steps for separate optimization,making it a challenging task to learn discriminative embeddings.To address these issues,we introduce a framework for modeling points belonging to the same instance using learnable Gaussian distributions and formulate the point cloud as a Gaussian mixture model.Based on this formulation,we introduce a unified loss function that links the embedding learning and instance clustering in an end-to-end manner.Our framework is generic and can be seamlessly incorporated with existing panoptic segmentation networks.By explicitly modeling intra-instance variance and leveraging end-to-end optimization,our framework improves the discrimination capability of point embeddings with higher accuracy and robustness.Extensive experiments on two large-scale benchmarks demonstrate the effectiveness of the proposed method.展开更多
文摘The complexity of business and information systems(IS)alignment is a growing concern for researchers and practitioners alike.The extant research on alignment architecture fails to consider the human viewpoint,which makes it difficult to embrace emergent complexity.This paper contributes to the extant literature in the following ways.First,we combine an enterprise architecture(EA)framework with a human viewpoint to address alignment issues in the architecture design phase;second,we describe a dynamic alignment model by developing a humancentered meta-model that explains first-and second-order changes and their effects on alignment evolution.This paper provides better support for the theoretical research and the practical application of dynamic alignment.
文摘Nam Cao and Lu Xun are among high-profile writers who gain wide appreciation. The movements of literary assert this over the latter half of recent century in our country. That reality persistently points us to an urgent need for researches on Nam Cao and Lu Xun. Tints of literary worldviews of Nam Cao and Lu Xun, though upon which numberless research works, both domestic and foreign, have provided multi-directional insights and exploration of artistic creativities, remain misevaluated. B ich Thu, the author of Nam Cao, His Life and Legacies, counted out 191 articles and books themed Nam Cao. They were edited by writers of Nam Cao＇s generation namely Nguyen Huy Tuong, Nguyen Dinh Thi, To Hoai and Nguyen Hong, and even distinguished scholars such as Ha Minh Duc, Phong Le and Nguyen Dang Manh, so on. Regarding Lu Xun, there is no denying the fact of his brilliant artistic ideology. Although Vietnamese readers have gained a late knowledge of him for just a half of century, his name is laid somewhere in the heart of our people, integrally and consistently. Vietnam＇s reader generations restlessly learn about and research on Lu Xun. A pioneering merit badge should be rewarded to the renowned literary critic Dang Thai Mai, for his introduction and translation of Lu Xun to Vietnamese readers since 1943. The most interesting coincidence of Nam Cao and Lu Xun is that their profiles are imbued with the characters in their compositions. Mentioning Lu Xun cannot help a reference to AQ, meanwhile the name ofNam Cao apparently recalls a Philistine Chi. AQ as well as Philistine Chi have become characters of the society＇s spiritual life and long live with the eternal brilliance of their two creators. That coincidence draws countless number of researchers. The ＂matching point＂, referring to the subject of farmers and intellectuals, between Nam Cao and Lu Xun＇s works has been explored to some certain extent. This elicitly invites us for deeper studies. The author of this article, in response to such invitation, delves into the subject with respect to characterization of intellectuals in Nam Cao and Lu Xun＇s short stories.
文摘Accurate panoptic segmentation of 3D point clouds in outdoor scenes is critical for the success of applications such as autonomous driving and robot navigation.Existing methods in this area typically assume that the differences between instances are greater than the differences between points belonging to the same instance and use heuristic techniques for segmentation.However,this assumption may not hold in real scenes with occlusion and noise.In addition,most of the previous methods formulate point-wise embedding learning and instance clustering as two decoupled steps for separate optimization,making it a challenging task to learn discriminative embeddings.To address these issues,we introduce a framework for modeling points belonging to the same instance using learnable Gaussian distributions and formulate the point cloud as a Gaussian mixture model.Based on this formulation,we introduce a unified loss function that links the embedding learning and instance clustering in an end-to-end manner.Our framework is generic and can be seamlessly incorporated with existing panoptic segmentation networks.By explicitly modeling intra-instance variance and leveraging end-to-end optimization,our framework improves the discrimination capability of point embeddings with higher accuracy and robustness.Extensive experiments on two large-scale benchmarks demonstrate the effectiveness of the proposed method.
