基于辩论的多agent商务谈判辩论产生和决策过程研究

由于在自动谈判中加入辩论成分能够允许Agent在谈判过程中通过辩论的形式交换和交流额外的信息,进而影响对方的信念、偏好、意向或目标,使谈判向着有利于达成协议方向发展,并提高谈判效率,降低交易成本,因此已经成为多Agent商务谈判领域的热点发展方向.本文针对如何产生辩论这一重要问题进行研究,提出了"候选辩论集的产生策略"和"基于冲突分析的辩论目标产生模型",分析了基于辩论的多Agent商务谈判决策过程,并通过原型系统进行了验证.本文的研究成果将促使多Agent商务谈判系统向着更为实用方向发展.     

催化光度法测定天然水中微量碘化物

碘是人体生长发育所必需的重要元素。天然水中碘化物含量很低 ,一般水中含量仅为 2～ 10 μｇ·Ｌ- 1。应用于测定碘化物含量的方法有淀粉比色法[1] ,亚砷酸 硫酸铈催化比色法[2 ] ,溶出伏安法 ,示波极谱法 ,气相色谱法 ,火焰原子吸收光谱法[3] 等 ,有的灵敏度低 ,有的操作手续麻烦。本文在硫酸介质中 ,根据微量碘化物对亚硝酸氧化硫氰酸盐有强烈的催化作用 ,研制了测定天然水中微量碘化物的催化光度法。本法简便快速 ,测定条件较宽 ,选择性好 ,不使用有毒试剂 ,灵敏度和准确度均满足测定天然水中微量碘化物的要求。1　试验部分1.1　主要试…     

AANA序列的半参数模型的强相合性

讨论渐近几乎负相依序列的半参数模型,利用最小二乘法和非参数加权的估计方法,得到参数、非参数和误差方差的估计,并在合适的条件下得到这些估计量的强相合性,推广了负相依序列的半参数模型的相应结论.     

Density functional study on the bimetallic Ti_mZr_n(n+m ≤ 5) clusters and their interactions with H_2

Equilibrium geometries, stabilities, and electronic properties of small Ti_mZr_n(n + m ≤ 5) clusters were investigated using the density functional method. The ground states were determined, and it was found that the larger clusters and those consisting of more Zr atoms are more stable. The electronic properties of the clusters were discussed based on HOMO-LUMO gaps, vertical ionization potentials(VIP), and vertical electron affinities(VEA). Furthermore, we studied the interactions between those clusters and molecular hydrogen, and found that in all the cases dissociative chemisorptions occurred. According to the chemisorption energies, the pure Zr clusters are relatively more active towards H_2 when compared with the others except Ti_3Zr, which shows the highest activity. The magnetic moments of Ti_mZr_n and Ti_mZr_nH_2 were also compared, and the results show that the hydrogenated clusters have the same or decreased total magnetic moments with respect to the bare clusters except for Ti_3Zr_2.