Perbandingan Efektivitas Penelusuran Bidang Ilmu Perpustakaan Menggunakan Search Engine Google dan Search Engine Yahoo berdasarkan file pdf

This research was conducted with technical documentation on the search engine Google and Yahoo, aims to determine the effectiveness of the findings field of Library Science with subjects taken from the Library Of Congress Subject Headings (LCSH) in 2009. Based on the analysis of research has been done on the field of information retrieval scientific documents Library Science can be concluded that the average value of the accuracy of scientific documents Library Science in the Google database (2,34) and Yahoo (2.29) getting the value precision. It has been suggested that the scientific documents Library Science in the database Google and Yahoo may be an option in searching scientific documents in the field of Library Science PDF format file search. Accuracy value of 2.34 at the Search Engine Google and the value of 2.29 at the Search Engine Yahoo can be increased further if the number of documents the scientific field of Library Science and information available on the Internet continues to increase. The higher of the precision of scientific document of the library science, a growing number of references that can be used in the scientific study of the field of Library Science. If seen from the average value of precision in the field of Library Science search using a search based on Google's PDF file that is equal to (2.34) and Yahoo (2.29), then Google and Yahoo can be used as a Search Engine to search documents in particular scientific field of Library Science. Perbandingan Efektivitas Penelusuran Bidang Ilmu Perpustakaan 50 Values obtained accuracy of a subject using the subject field of Library Science occasionally get high returns, but sometimes also scores low precision. Overall scientific documents Science Library has a value higher accuracy, the scientific information retrieval field of Library Science scores high accuracy that is equal to 2.34, while the Search Engine Yahoo obtain high accuracy that is equal to the value of 2.29