Abstract In this paper, the non-negative decentralized completion problem of the in-complete Internet latency matrix is studied. On the basis of the low-rank approximation of the matrix, we componentized this problem into a couple of convex optimization problems by estimating the l0 norm of this matrix, and then solved it by alternative direction algorithm. Owing to the asymmetry and the negative definite characteristic of... In this paper, the non-negative decentralized completion problem of the in-complete Internet latency matrix is studied. On the basis of the low-rank approximation of the matrix, we componentized this problem into a couple of convex optimization problems by estimating the l0 norm of this matrix, and then solved it by alternative direction algorithm. Owing to the asymmetry and the negative definite characteristic of the matrix caused by the difference between autonomous system routing strategies, some negative entries inevitably exist in the completed matrix. Unlike traditional non-negative completion algorithms, this paper does not try to prevent the generation of the negative entries. As a replacement, this paper presents a novel and much simpler non-negative ensuring scheme named NADeMaC, which calibrates the negative entries by a prior positive estimation value after they appeared. Theoretical analysis shows that the accuracy of our algorithm is at least no less than traditional methods, and furthermore our experiments show that our method is far better than traditional non-negative ensuring scheme. Read More Read Less

Abstract Aiming at the problem of intelligent monitoring in grain storage, a design plan of temperature and humidity is proposed based on ZigBee wireless network. The system integrates the SCM technology, computer technology, intelligent sensor technology and wireless communication technology, using STC89C52 microcontroller as the control chip, SHT11 as an integrated temperature and humidity sensor, and using ZigBee as the data transmission of wireless network,... Aiming at the problem of intelligent monitoring in grain storage, a design plan of temperature and humidity is proposed based on ZigBee wireless network. The system integrates the SCM technology, computer technology, intelligent sensor technology and wireless communication technology, using STC89C52 microcontroller as the control chip, SHT11 as an integrated temperature and humidity sensor, and using ZigBee as the data transmission of wireless network, PC machine as the position machine to achieve human-computer interaction. Practice has proved, the wireless sensor network system overcomes the limitations of wired sensor networks, and the whole system is easy to operate, strong expansibility, realizes the intelligent management of the granary and has higher application value. Read More Read Less

Abstract The purpose of this study was to investigate road runners’ customer behavior regarding smart wearable devices through an extension of the Technology Acceptance Model. A total of 314 road runners participated in the study, and a regression model was formulated to measure the relationships among variables in the conceptual model. The results revealed that perceived ease of use, perceived usefulness, and health anxiety... The purpose of this study was to investigate road runners’ customer behavior regarding smart wearable devices through an extension of the Technology Acceptance Model. A total of 314 road runners participated in the study, and a regression model was formulated to measure the relationships among variables in the conceptual model. The results revealed that perceived ease of use, perceived usefulness, and health anxiety had a significant impact on attitude toward use. To increase individuals’ intention to use smart wearable devices, it is critical to encourage a positive attitude toward using the devices to acquire health knowledge. Emphasizing devising effective means to communicate the health utility of the devices to customers should be the highest priority for industry producers. Read More Read Less