中文摘要：

为了应对投资决策的不确定性,个人投资者需要多样化的投资信息资源来获取和解读投资信息。通过对个人投资者常用的信息源进行分类,利用改进的蚁群算法挖掘分类规则集合,精炼地表达个人投资者信息源选择的模式和多维特征,对投资工具和交易软件开发商、财经信息服务中介机构提高服务质量具有参考价值。

英文摘要：

To deal with the uncertainty of investment decision, individual investors are in need of diversified information resources to ob- tain and explain the investment information. The paper categorizes the information resources used by investors commonly, and uses the ant colony algorithm to mine classification rules presenting the patterns and features of those information resources＇ use concisely. The study provides useful references to investment tool developers and financial information service providers in improving their information services.