【摘要】 读者决策采购(PDA)颠覆了图书馆传统馆藏建设模式,提高了文献利用率,更大程度上满足了用户需求。从PDA的首要环节即建立预设文档入手,通过对我馆近三年流通统计数据的收集和整理,用BP神经网络建立合理的预测模型,用层次分析模型对影响图书馆采购的各项因素进行筛选,最终构建一种读者阅读需求预测机制,完成对PDA预设文档的科学指导。更多还原

【Abstract】 PDA subverts the traditional library collection mode which improves book usage and greatly meets user’s demand. Starting from the first link of PDA: establishment of presupposed documents,this article establishes a rational prediction model based on BP neural network with library distribution statistics over the past three years. And selects influence factors in library collection by analytical hierarchy process,finally forms a set of prediction mechanism of readers’ reading demand and completes the scientific guidance of PDA presupposed documents.更多还原