Adding colors to monochrome thermal infrared images can help observers understand the scenery better. A nonlinear color estimation method for single-band thermal infrared imagery based on kernel principal component an...Adding colors to monochrome thermal infrared images can help observers understand the scenery better. A nonlinear color estimation method for single-band thermal infrared imagery based on kernel principal component analysis (KPCA) and sparse representation was proposed. Nonlinear features of infrared image were extracted using KPCA. The relationship between image features and chromatic values was learned using sparse representation and a color estimation model was obtained. The thermal infrared images can be rendered automatically using the color estimation model. The experimental results show that the proposed method can render infrared image with an accurate color appearance. The proposed idea can also be used in other color estimation problem.展开更多
Labor protection increases employees’stability and strengthens their monitoring role,improving firms’information environment and increasing analysts’earnings forecast accuracy.Using the implementation of China’s L...Labor protection increases employees’stability and strengthens their monitoring role,improving firms’information environment and increasing analysts’earnings forecast accuracy.Using the implementation of China’s Labor Contract Law as a quasi-natural experiment,we find that labor protection significantly improves analyst forecasts.This positive impact is stronger when agency problems are weaker,board independence is greater,corporate reputation is better and industry competition is more intense.Enhanced labor protection significantly reduces firms’business risk and accrual-based earnings management,decreases stock price synchronicity and increases market pricing efficiency.Our findings of significant impacts of China’s Labor Contract Law on analysts’forecasting behaviors offer important guidance for promoting the development of the Chinese capital market and policy making in labor protection.展开更多
ON May 20, 2019, as a result of Trump’s threats, Google announced that it would not collaborate with Huawei. Many analysts have speculated that a discord similar to the Cold War, a division that those of us who had t...ON May 20, 2019, as a result of Trump’s threats, Google announced that it would not collaborate with Huawei. Many analysts have speculated that a discord similar to the Cold War, a division that those of us who had to experience it would not like to relive again might arise once more. For this time, if a comparable conflict were to be unleashed, it would immediately be reflected on much of the world. In the 1980s, at the height of the Cold War, trade between the United States and the Soviet Union reached US $2 billion annually;today, China-U.S. trade reaches that figure daily.展开更多
基金National Natural Science Foundation of China(No. 61072090)the Fundamental Research Funds for the Central Universities,China+2 种基金Shanghai Pujiang Program,China(No. 12PJ1402200)China Postdoctoral Science Foundation Funded Project(No. 2012M511058)Shanghai Postdoctoral Sustentation Fund,China(No. 12R21412500)
文摘Adding colors to monochrome thermal infrared images can help observers understand the scenery better. A nonlinear color estimation method for single-band thermal infrared imagery based on kernel principal component analysis (KPCA) and sparse representation was proposed. Nonlinear features of infrared image were extracted using KPCA. The relationship between image features and chromatic values was learned using sparse representation and a color estimation model was obtained. The thermal infrared images can be rendered automatically using the color estimation model. The experimental results show that the proposed method can render infrared image with an accurate color appearance. The proposed idea can also be used in other color estimation problem.
基金supported by the China National Natural Science Foundation(No.72073024)the Humanities and Social Sciences Youth Foundation of the Ministry of Education of China(20YJC790150)the Fundamental Research Funds for the Central Universities in UIBE(CXTD13-03)
文摘Labor protection increases employees’stability and strengthens their monitoring role,improving firms’information environment and increasing analysts’earnings forecast accuracy.Using the implementation of China’s Labor Contract Law as a quasi-natural experiment,we find that labor protection significantly improves analyst forecasts.This positive impact is stronger when agency problems are weaker,board independence is greater,corporate reputation is better and industry competition is more intense.Enhanced labor protection significantly reduces firms’business risk and accrual-based earnings management,decreases stock price synchronicity and increases market pricing efficiency.Our findings of significant impacts of China’s Labor Contract Law on analysts’forecasting behaviors offer important guidance for promoting the development of the Chinese capital market and policy making in labor protection.
文摘ON May 20, 2019, as a result of Trump’s threats, Google announced that it would not collaborate with Huawei. Many analysts have speculated that a discord similar to the Cold War, a division that those of us who had to experience it would not like to relive again might arise once more. For this time, if a comparable conflict were to be unleashed, it would immediately be reflected on much of the world. In the 1980s, at the height of the Cold War, trade between the United States and the Soviet Union reached US $2 billion annually;today, China-U.S. trade reaches that figure daily.
