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本研究では都道府県立及び市区公共図書館のデジタル／対面式のレファレンスサービス とQ&Aサイトに60個の同じ質問を行い，正答率を比較した。結果，デジタルレファンス サービス(DRS)の正答率は全般にQ&Aサイトより高いこと，DRS未実施館の対面式の正 答率はQ&Aサイトと変わらないが，実施館のそれはQ&Aサイトより高いことが示された。 DRSを行うほどレファンスサービスに熱心に取り組めば，図書館の正答率はQ&Aサイト を超えられる可能性がある。今後のレファンスサービスのあり方を検討する上で考慮べ き結果と思われる。

コンピュータを使用した専門用語自動抽出は，従来，対象とする専門分野のテキストコーパスのみをデータとして行っているものが多かった．しかし，専門用語の特徴として，対象分野のコーパスに頻出し，対象分野以外の他分野コーパスにはあまり多く出現しない点が挙げられる．そこで本研究では，対象分野コーパスと他分野コーパスとの用語の出現率の差を考慮した手法を提案する．実験では，女性学のテキストを対象分野のコーパスとして使用し，他分野のコーパスとして 39分野のテキストを使用した．実験の結果，従来の代表的手法よりもかなり高い精度で用語が抽出できることが明らかとなった．また39分野のテキストから任意のテキストを選び他分野コーパスとして用いてコーパスの規模を縮小できるか実験を行った．その結果，対象分野と類似した分野のテキストを用いることで，39分野すべてのテキストを用いた場合の抽出精度・再現率に近づけることができた．

本研究では近年急速に成長しているQ&Aサイトと公共図書館レファレンスサービスに同じ質問を行い,正答率などを比較した。前者には「教えて!goo」を,後者には首都圏近郊の32館を選び,60個の質問を行った。結果,直接的に完全な正答が与えられた割合は共に32%で,間接的に与えられた場合を含めても両者の正答率に大きな差はなかった。質問の主題別に見ても差はなく,答えが得られるまでの時間もQ&Aサイトの方が大きく劣ることはなかった。こうした状況を踏まえ公共図書館は新たなレファレンスサービスのあり方を検討する必要がある。

本稿では,Amazon.co.jpが扱う図書がNDL-OPACでヒットするかを調べる形で国立国会図書館における納本状況を調査し,ポルノグラフィのほとんどが納本されていない現状を明らかにする。また,ポルノグラフィを刊行している出版社の納本状況を調査し,一般出版物は納本しているにもかかわらずポルノグラフィだけは納本していないといった結果も提示する。さらに国立国会図書館,取次,出版社に聞き取り調査を行い,日本の現行納本制度の運用上における諸問題を考察する。

Introduction. This study clarifies the state of deposition of publications targeted at mature readers in the National Diet Library (NDL) and some other related issues. Method. First, we selected 50 publications by category from Amazon.co.jp, largest online bookstore in Japan, and then, we investigated as to whether the entry of these publications would result in hits on NDL-OPAC, which is the NDL’s online catalogue. Next, we conducted a detailed survey on the publications from publishing companies that target mature readers and investigated the number of publications deposited by these companies every year. Finally, we conducted interview surveys targeting the NDL, agent companies, and publishing companies. Results. We found that 80% of the publications for mature readers in the “adult” category at Amazon.co.jp were not deposited in the NDL. Conclusion. We discovered the evidence of a pattern wherein some of the publishing companies that publish publications for mature readers deposit only publications that are not targeted at mature readers, and refrain from depositing publications targeted at mature readers. The NDL should focus on improving the deposition of publications through agents and on developing an exhaustive knowledge of Japanese publications., Asia-Pacific Conference on Library & Information Education and Practice (A-LIEP 2009) Preparing Information Professionals for International Collaboration 6-8 March 2009, University of Tsukuba, Japan

Introduction: This study clarifies the current status of implementing filtering software in Japanese public libraries and their performance. Method: 253 municipal libraries and 47 prefectural libraries that provide Internet terminals to their users were chosen as the target, and a mail survey was conducted from November 2007 to January 2008. We received usable responses from a total of 155 libraries. As for the performance of filtering software, we manually checked 4,640 web pages by using PCs on which i-FILTER and InterSafe were installed. We determined whether they blocked content that “should be blocked" and, conversely, whether they excessively blocked content that should not be blocked. Result: We found that 85.3% of prefectural and 76.9% of municipal libraries installed filtering software. The most chosen software applications were i-FILTER, InterSafe, and CYBERsitter. Among the complaints from users, some mentioned that they could not access the pages of online bookstores, which are considered useful to library users. The survey revealed a trade-off relationship between i-FILTER and InterSafe regarding the blocking rate for harmful pages and the incorrect blocking rate for non-harmful pages. Moreover, block leaks are common for relatively new concepts such as 学校裏サイト (student run school site). Conclusion: Filtering software is now common among public libraries, but vendors’ offerings perform differently. Public libraries should select and set up their software in correspondence with their own information supply policies.

application/pdf, As a part of LIPER research, a questionnaire survey was performed on Library & Information Science instructors in Japanese universities. In quantitative terms, this research revealed the characteristics and teaching goals of LIS instructors, the similarities of librarian certification courses, and the overlap with instructors of those courses. Also, an analysis of freeform question responses about LIS education revealed the instructor’s varied thoughts on LIS education and also revealed awareness of problems related to profession and curriculum issues and education goals., 3rd-6th April, 2006 at Nanyang Technological University, Singapore

In this paper, we describe a rule-based mechanism that detects Japanese term variations from textual corpora. The system operates on the basis of meta-rules that map syntactic and morpho-syntactic variants of terms to the original forms of terms. The framework used here has been successfully applied to such languages as English and French, and we show here that it also works well in detecting Japanese term variants, once we properly take into account specific characteristics of the Japanese language. We also discuss the potential of this work for IR-related applications.

情報知識学会 第 21 回（2013年度）年次大会 2013年5月25-26日 お茶の水女子大学