For mobile anchor node static path planning cannot accord the actual distribution of node for dynamic adjustment. We take advantage of the high localization accuracy and low computational complexity of ad-hoc localiza...For mobile anchor node static path planning cannot accord the actual distribution of node for dynamic adjustment. We take advantage of the high localization accuracy and low computational complexity of ad-hoc localization system( AHLos)algorithm. This article introduces mobile anchor nodes instead of the traditional fixed anchor nodes to improve the algorithm. The result shows that, through introduce the mobile anchor node, the information of initial anchor nodes can be configured more flexible.Meanwhile,with the use of the approximate location and the transition path,the distance and energy consumption of the mobile anchor node is greatly reduced.展开更多
In recent years, as there has been a major change in the necessity and importance of sightseeing information, a platform to provide real-time sightseeing information according to the ever-changing circumstances is nec...In recent years, as there has been a major change in the necessity and importance of sightseeing information, a platform to provide real-time sightseeing information according to the ever-changing circumstances is necessary. Additionally, it is effective to adopt gamification to increase users’ motivation to continuously utilize the system in order to provide them with more information. In the present study, in order to support users’ enjoyment in creating efficient and pleasant sightseeing plans, the system that incorporates gamification to increase motivation was developed combining with web-geographic information systems (Web-GIS) and sightseeing planning and sharing system. The system was operated over a period of 2 weeks in Chofu City, Tokyo Metropolis, Japan. Based on the results of a questionnaire survey for 51 users, though the operability of the 3 main functions incorporated with motivation by gamification was rated lower than those of the 2 basic functions, their usefulness was highly rated. Based on the results of the access log analysis, it was effective to design the system so that the same functions can be used regardless of the type of information terminal. Additionally, it was evident that the continuous utilization of the system could increase the number of sightseeing plans created by the users.展开更多
A variable dimensional state space（VDSS） has been proposed to improve the re-planning time when the robotic systems operate in large unknown environments.VDSS is constructed by uniforming lattice state space and gri...A variable dimensional state space（VDSS） has been proposed to improve the re-planning time when the robotic systems operate in large unknown environments.VDSS is constructed by uniforming lattice state space and grid state space.In VDSS,the lattice state space is only used to construct search space in the local area which is a small circle area near the robot,and grid state space elsewhere.We have tested VDSS with up to 80 indoor and outdoor maps in simulation and on segbot robot platform.Through the simulation and segbot robot experiments,it shows that exploring on VDSS is significantly faster than exploring on lattice state space by Anytime Dynamic A＊（AD＊） planner and VDSS is feasible to be used on robotic systems.展开更多
The present study aimed to design, develop, operate and evaluate a tourism planning support system that can be used to decide on places to eat lunch and dinner, sightseeing spots to visit along the way, and routes for...The present study aimed to design, develop, operate and evaluate a tourism planning support system that can be used to decide on places to eat lunch and dinner, sightseeing spots to visit along the way, and routes for visiting these destinations. This system was developed by integrating a web geographic information system (Web-GIS) and a sightseeing plan creation system (an eatery search system and a sightseeing route creation system). Additionally, the system was operated for one month in Central Yokohama City of Kanagawa Prefecture in Japan, and the total number of users was 79. Based on the results of the web questionnaire survey, user evaluations were particularly high for the function of sightseeing spot selection and the function of display of sightseeing plan information, and also for the entire system. From the results of the access analysis of users’ log data, the total number of sessions in the system was 263, 67% used mobile devices, and smartphones were used most frequently. Therefore, it is evident that the system was used by different types of devices just as it was designed for, and that the system was used according to the purpose of the present study, which is to support the food tourism planning of users.展开更多
Pedestrians intercepted near the exits of a subway station in downtown Hong Kong were surveyed using a questionnaire and quota sampling in October 2012. The survey sampled 408 residents and tourists aged 16 and above....Pedestrians intercepted near the exits of a subway station in downtown Hong Kong were surveyed using a questionnaire and quota sampling in October 2012. The survey sampled 408 residents and tourists aged 16 and above. The awareness of the 16 ads. ranged from 18 to 80 percent with an average 43.5 percent. The layouts of the two subway ads. received highest awareness were focused and had a clear distinction between foreground and background. Average ad awareness was comparable to that reported in two similar studies of subway ads. conducted in the 1990s. Average ad awareness of subway ads. was higher than that of outdoor advertising measured using similar methodology in 2010s. Respondents demonstrated positive attitudes toward subway advertising, and reported that subway ads. that drew their attention were those with creative ideas, vivid colors, and large-than-life size execution.展开更多
This study contributes a number of innovative and interesting empirical findings with a view of four audit committee characteristics to predict overall value creation efficiency and capital employed efficiency using v...This study contributes a number of innovative and interesting empirical findings with a view of four audit committee characteristics to predict overall value creation efficiency and capital employed efficiency using value added intellectual coefficient （VAICTM） method. Using purposive sampling, 34 property, real estate, and building construction firms listed on Indonesia Stock Exchange in 2011 were selected. Empirical findings could not provide a significant relationship between audit committee characteristics and the overall value creation efficiency as well as capital employed efficiency. This implies that currently, the number of members, number of meetings, number of independent commissioners, and accounting or finance expertise in audit committee cannot be expected as drivers of business value creation in Indonesian context, more specifically for property, real estate, and building construction industry. The overall lack of significant relationships may potentially result from limited human capacity, lack of financial expertise, and inadequate knowledge about the role of audit committee to add value to the business.展开更多
基金National Natural Science Foundations of China(Nos.U1162202,61203157)the Fundamental Research Funds for the Central Universities and Shanghai Leading Academic Discipline Project,China(No.B504)
文摘For mobile anchor node static path planning cannot accord the actual distribution of node for dynamic adjustment. We take advantage of the high localization accuracy and low computational complexity of ad-hoc localization system( AHLos)algorithm. This article introduces mobile anchor nodes instead of the traditional fixed anchor nodes to improve the algorithm. The result shows that, through introduce the mobile anchor node, the information of initial anchor nodes can be configured more flexible.Meanwhile,with the use of the approximate location and the transition path,the distance and energy consumption of the mobile anchor node is greatly reduced.
文摘In recent years, as there has been a major change in the necessity and importance of sightseeing information, a platform to provide real-time sightseeing information according to the ever-changing circumstances is necessary. Additionally, it is effective to adopt gamification to increase users’ motivation to continuously utilize the system in order to provide them with more information. In the present study, in order to support users’ enjoyment in creating efficient and pleasant sightseeing plans, the system that incorporates gamification to increase motivation was developed combining with web-geographic information systems (Web-GIS) and sightseeing planning and sharing system. The system was operated over a period of 2 weeks in Chofu City, Tokyo Metropolis, Japan. Based on the results of a questionnaire survey for 51 users, though the operability of the 3 main functions incorporated with motivation by gamification was rated lower than those of the 2 basic functions, their usefulness was highly rated. Based on the results of the access log analysis, it was effective to design the system so that the same functions can be used regardless of the type of information terminal. Additionally, it was evident that the continuous utilization of the system could increase the number of sightseeing plans created by the users.
基金Supported by the National Natural Science Foundation of China(90920304)
文摘A variable dimensional state space（VDSS） has been proposed to improve the re-planning time when the robotic systems operate in large unknown environments.VDSS is constructed by uniforming lattice state space and grid state space.In VDSS,the lattice state space is only used to construct search space in the local area which is a small circle area near the robot,and grid state space elsewhere.We have tested VDSS with up to 80 indoor and outdoor maps in simulation and on segbot robot platform.Through the simulation and segbot robot experiments,it shows that exploring on VDSS is significantly faster than exploring on lattice state space by Anytime Dynamic A＊（AD＊） planner and VDSS is feasible to be used on robotic systems.
文摘The present study aimed to design, develop, operate and evaluate a tourism planning support system that can be used to decide on places to eat lunch and dinner, sightseeing spots to visit along the way, and routes for visiting these destinations. This system was developed by integrating a web geographic information system (Web-GIS) and a sightseeing plan creation system (an eatery search system and a sightseeing route creation system). Additionally, the system was operated for one month in Central Yokohama City of Kanagawa Prefecture in Japan, and the total number of users was 79. Based on the results of the web questionnaire survey, user evaluations were particularly high for the function of sightseeing spot selection and the function of display of sightseeing plan information, and also for the entire system. From the results of the access analysis of users’ log data, the total number of sessions in the system was 263, 67% used mobile devices, and smartphones were used most frequently. Therefore, it is evident that the system was used by different types of devices just as it was designed for, and that the system was used according to the purpose of the present study, which is to support the food tourism planning of users.
文摘对数据流上的Ad Hoc查询进行自适应处理,需要保证已有查询计划快速在线更新和迁移,但现有方法实现新旧查询计划的更新需要大量的滑动窗口状态转换。为此,提出一种AdHoe查询自适应处理算法。该算法基于数据流概要分布特性和自定义评分模型,快速计算出现有查询计划的最佳增量更新,以实现新到达的Ad Hoc查询处理,降低新旧查询计划切换时间。在数据流benchmark Linear Road提供的高速公路数据集上进行实验,结果表明,与MS、PT方法相比,该算法可较快完成新旧查询计划的切换。
文摘Pedestrians intercepted near the exits of a subway station in downtown Hong Kong were surveyed using a questionnaire and quota sampling in October 2012. The survey sampled 408 residents and tourists aged 16 and above. The awareness of the 16 ads. ranged from 18 to 80 percent with an average 43.5 percent. The layouts of the two subway ads. received highest awareness were focused and had a clear distinction between foreground and background. Average ad awareness was comparable to that reported in two similar studies of subway ads. conducted in the 1990s. Average ad awareness of subway ads. was higher than that of outdoor advertising measured using similar methodology in 2010s. Respondents demonstrated positive attitudes toward subway advertising, and reported that subway ads. that drew their attention were those with creative ideas, vivid colors, and large-than-life size execution.
文摘This study contributes a number of innovative and interesting empirical findings with a view of four audit committee characteristics to predict overall value creation efficiency and capital employed efficiency using value added intellectual coefficient （VAICTM） method. Using purposive sampling, 34 property, real estate, and building construction firms listed on Indonesia Stock Exchange in 2011 were selected. Empirical findings could not provide a significant relationship between audit committee characteristics and the overall value creation efficiency as well as capital employed efficiency. This implies that currently, the number of members, number of meetings, number of independent commissioners, and accounting or finance expertise in audit committee cannot be expected as drivers of business value creation in Indonesian context, more specifically for property, real estate, and building construction industry. The overall lack of significant relationships may potentially result from limited human capacity, lack of financial expertise, and inadequate knowledge about the role of audit committee to add value to the business.
