不完全偏好下非连续增算子的不动点与广义不动点定理

在不完全偏好意义下得到了非连续增算子一些新的不动点和广义不动点定理 ,并推广了许多已知结果     

CLOTHING COLOUR PREFERENCES IN A HOSPITAL ENVIRONMENT IN HONG KONG: PART I - CHILD PATIENT''''S PREFERENCES OF COLOUR ON NURSE UNIFORM

The aim of this study explored the importance of colour application on clothing and investigated whether there is a preference of colour on clothing among children under hospital environment. A modified colour associated test based on the Luster Color Test was used to carry out the survey. Fifty child patients aged four to sixteen were asked to look at two specially designed colour cards and to name their preferences and associations on each of the colour.     

Ecological and evolutionary implications of digestive processes: Bird preferences and the sugar constituents of floral nectar and fruit pulp

Plants pollinated and dispersed by different groups of birds offer different kinds of sugars in nectar and fruit pulp. The preferences and physiological traits of avian pollinators and seed dispersers are broadly correlated with the sugar composition of the nectar and fruit that they feed on and appear to have influenced the evolution of the sugar composition of the rewards that plants offer. Hummingbirds prefer sucrose whereas many nectar- and fruit-eating passerines prefer glucose and fructose. Preference for hexoses in passerines seems to be associated with poor sucrose assimilation resulting from two physiological mechanisms: lack of intestinal sucrase activity and fast passage rates. Sucrase activity absence appears to be restricted to a single phylogenetic group (the sturnid-muscicapid lineage). Fast passage rates seem to be characteristic of many small frugivores and to hinder the assimilation of complex nutrients that require hydrolysis before absorption. Hummingbirds have extremely specialized digestive traits that allow them to assimilate sucrose at high rates and with extremely high efficiency. These specialized digestive traits appear not to be present in many nectar-feeding passerines.     

基于相似类的用户偏好服务选择方法

现有服务选择算法大多会选中服务质量综合评价值最高的”最佳”服务,这不能充分体现用户对某些属性的特殊偏好,也可能导致大量服务请求集中到同一个服务提供者,出现过载现象.为此,提出了一种基于相似类的用户偏好服务选择方法,首先通过服务质量属性相似度将各候选服务分为若干类,然后基于反映用户自身偏好的关键属性描述剔除不满足相应约束的相似类,再结合用户给定各属性的权重值选择最佳候选服务相似类并从中确定选中服务,最后给出一个具体实例以说明该方法的有效性和可行性.     

基于语义的网格服务组合研究

随着网格技术的发展,以及网格中资源的不断增加,网格服务组合具有非常重要的意义。针对网格服务的动态性和分布性,提出了一种基于语义P2P的网格服务组织方式,并提出了将基于情景演算方法中的通用程序转化为HTN领域模板,通过加入用户偏好对SHOP2规划算法进行了改进,减小了规划空间,提高了规划效率。     

考虑用户偏好的奖励机制下共享单车分流停车引导策略研究

为缓解共享单车停车空间不足导致的乱停乱放问题,提出共享单车停车分流引导策略,并根据用户行为选择设置相应的奖励措施。设计叙述性偏好问卷调查,获取用户行为选择偏好数据,运用Logit模型进行分析并构建激励共享单车用户分流停车的奖励机制;构建以企业成本最小和转移停车需求最大为目标的多目标优化模型,提出引导用户分流停车的策略。以西三旗永泰庄地铁站为例检验了该策略的实际可操作性,结果表明策略用户接受度达60%,预计成功转移58.33%的过量停车需求。该策略能够在一定程度上缓解由于停车空间不足导致的共享单车停车问题,可以为共享单车停车管理提供有效指导。