科技查新中Dialog CA Search与CA on CD检索效果的比较研究  

Comparative Study on Retrieval Effectiveness for Sci-tech Novelty Search between Dialog CA Search and CA on CD

作　　者：马云辉[1] 严大香[1] 

机构地区：[1]苏州大学图书馆,江苏苏州215006

出　　处：《科技情报开发与经济》2009年第30期73-75,共3页Sci-Tech Information Development & Economy

摘　　要：以一个化学类科技查新检索实例,分别用Dialog CA Search和CA on CD进行检索,通过比较它们的检索效果,分析各自造成漏检的原因,得出CA on CD在查全率和查准率方面优于Dialog CA Search的结论。With an example of chemical technology novelty search,this paper respectively retrieves by using Dialog CA Search and CA on CD,analyzes reasons of their omission through comparing their retrieval results,and draws a conclusion that CA on CD is superior to Dialog CA Search in recall ratio and precision ratio.

关 键 词：科技查新 DIALOG CA on CD 化学文摘 

分 类 号：G354[文化科学—情报学]