Information Retrieval can Cope with Many Errors

The retrieval of documents that originate from digitized and OCR-converted paper documents is an important task for modern retrieval systems. The problems that OCR errors cause for the retrieval process have been subject to research for several years now. We approach the problem from a theoretical point of view and model OCR conversion as a random experiment. Our theoretical results, which are supported by experiments, show clearly that information retrieval can cope even with many errors. It is, however, important that the documents are not too short and that recognition errors are distributed appropriately among words and documents. These results disclose that an expensive manual or automatic post-processing of OCR-converted documents usually does not make sense, but that scanning and OCR must be performed in an appropriate way and with care.     

Equitable representation in awards and recognition in scholarly publishing: Current challenges and the path ahead

• Awards are an important mechanism of recognition that can signify inclusivity or exclusivity and impact careers.
• More women were selected by publishing organizations for awards overall yet appeared underrecognized in a predominantly women-employed workforce.
• Award programs showed a preference for US-based awardees despite the global representation of individuals' localities.
• To build equity in awards programs, organizations are encouraged to appoint diverse committees, promote transparency and publicize awards in historically excluded communities.

     

民国时期关于儿童阅读的学术研究

文章梳理了民国时期关于儿童阅读的研究文章,重点探讨有关儿童阅读训练、阅读兴趣、阅读心理及阅读动机的研究成果,提炼其理念和经验,为当代儿童阅读工作发展提供借鉴。     

大学生社交网络行为画像研究

文章基于社交网络用户行为影响因素框架形成需求动机维度的22个标签,结合用户特征维度的8个标签形成大学生社交网络行为标签体系。采用社会调查方法获取标签数据,通过因子分析提取出需求动机维度的4个分类特征因子。基于所提取的特征因子进行快速聚类,得到娱乐型、社交型、信息型和全面型4个差异化群体用户分类,并结合用户特征维度的8个标签对各类用户画像的典型特征进行描述。