目录前言.........................................................................................................3第1章绪论.............................................................................................41.1研究课题的提出..........................................................................41.2国内外研究现状及挑战..............................................................41.3本文的主要工作及创新点..........................................................41.4本文的组织结构..........................................................................5第2章相关技术和研究工作.................................................................72.1众包基本特征..............................................................................72.1.1基本特征............................................................................72.1.2与外包区别........................................................................72.2众包工作流程..............................................................................82.3众包应用......................................................................................82.3.1AmazonMechanicalTurk...................................................92.3.2科研领域应用....................................................................92.4众包质量控制............................................................................102.4.1低质量结果产生的原因..................................................102.4.2相关工作..........................................................................112.5本章小结....................................................................................12第3章问题抽象与模型建立...............................................................13第4章算法研究...................................................................................154.1共聚类可靠性矩阵....................................................................154.1.1基于用户回答准确率的任务聚类..................................154.1.2计算共聚类......................................................................164.2预测目标任务正确答案............................................................174.2.1朴素贝叶斯相关的统计学知识......................................174.2.2朴素贝叶斯模型..............................................................174.2.3预测目标任务答案..........................................................18第5章实验与对比...............................................................................225.1模拟仿真....................................................................................225.1.1贝塔分布..........................................................................225.1.2狄利克雷分布..................................................................225.1.3模拟用户作答..................................................................235.1.4分析预测结果..................................................................235.2相关预测方法............................................................................255.2.1majorityvoting.................................................................255.2.2weightedvoting................................................................255.3方法对比....................................................................................265.3.1k-折交叉验证........................
