资讯检索策略与技巧

资讯检索策略与技巧内容摘要：

AND C (A AND B) OR (A AND C) OR (B AND C) 17 Pairwise Facets—3/3 Facet 1 Facet 2 Facet 3 Solution Set B Solution Set A Sample: A doctoral student wants a high recall bibliography prepared on the relationship between facial musculature and the physiological (autonomic) responding of emotions, ., fear. Solution Set C FINAL SOLUTION SET: A OR B OR C AND AND AND 18 Citation Pearl Growing  引用文獻滾雪球法 以 high precision 為目的  由 100%precision（相關的文章），反推追求 recall  不斷從已知相關的文獻中，獲取檢索所需的descriptors、 identifiers 、 words，重新進行檢索  適用情形 資料庫無索引典或詞彙集 新興學科  常需重複多次檢索，不適於初學者 19 Other facet strategies  Multiple Briefsearch 利用不同的 database，盡量取得 high recall  Interactive Scanning  most timeconsuming and interactive 如使用 classification codes, natural language  Implied Concepts 掌握隱含性概念，視資料庫之主題性質，選用不同詞彙 例： possible health hazards from foods cooked using microwave ovens 20 Citation indexing strategies  利用引用 (citing)與被引用 (cited)文獻之間的關係，建構檢索策略  Offer highly interdisciplinary and multidisciplinary approaches to online searching  檢索策略  Cited publication、 Cited Author、 Cocited Authors 國科會人文學研究中心人文學引用文獻資料庫（ THCI） 21 Nonsubject, fact, and multiple database searching  Nonsubject searching Document type、 year of publication、 language、author、 corporate source doublelimiting  Fact searching Search for a known item  Multiple database searching 注意收錄欄位和控制語言用法 22 檢索技巧 (Heuristics)  Language Heuristics  Command Language, Database and File Structure Heuristics  Recall and Precision Heuristics Heuristics for Increasing Recall Heuristics for Increasing Precision  Personal Heuristics 23 Language Heuristics—1/2  當有下列情形，應使用自然語言檢索  One or more of the concepts of interest involves a subtle nuance of meaning  One or more of the concepts of interest is highly specific  One or more of the concepts is relatively new and appropriate terms in the controlled vocabulary don not exist  A highly prehensive search is desired (high recall) The literature to be searched is “soft” 24 Language Heuristics—2/2 當有下列情形，應使用控制詞彙檢索 The concepts of interest。