面向视障人群的DAISY阅读推荐系统

发布时间：2018-03-03 19:54

本文选题：DAISY　切入点：阅读软件　出处：《浙江大学》2017年硕士论文　论文类型：学位论文

【摘要】：2005年,国家信息标准组织(NISO)发表的DAISY 3.0标准被美国国家标准协会(ANSI)正式地纳入国家标准,DAISY定义了有声电子书(DTB)的内容和格式,这些有声电子书包括了 XML文本、对应的音频以及其他必要的资源文件。相对于传统的电子书格式,DAISY电子书格式有很多优点,DAISY允许视障人群轻松地浏览阅读书籍,是针对视障人群以及阅读障碍人群设计的电子书标准。根据2006年中国残疾人联合协会的官方统计数据可知,截至2006年年底,我国各类残疾人已约达8296万人次,其中视力残疾约达1233万人次,而且数量正在逐年递增,视障人群以及阅读障碍患者由于先天或者后天的缺陷无法拥有如同正常人一般的自由的阅读体验,因此,中国盲文出版社希望能开发一款适合视障人群使用的DAISY阅读软件。本文首先根据DAISY3.0标准开发出一款基于iOS系统的DAISY3.0格式的电子书阅读软件DAISYAPP,这款阅读软件可以根据目录进行导航,也可以根据上下句,上下段落进行切换,在播放音频的同时高亮对应的文本内容。其次,搭建后台服务器,实现了基于APP的面向视障人群的DAISY阅读推荐系统。最初的推荐系统算法从两方面考虑:基于内容的推荐算法和基于协同过滤的推荐算法。在分析了系统获取的真实数据、用户反馈以及移动端使用环境的特点后,提出了合理的融合基于物品推荐与基于用户推荐两种算法的面向移动端的融合推荐方法。最后,针对视障人群的特点,提出了基于APP的用户行为推荐算法,通过真实数据集上的实验结果,验证了面向视障人群进行推荐时,该算法优于传统的推荐算法,证明了改进后的推荐系统在提升视障人群的阅读体验方面的可行性。同时其改良版已经在中国盲文出版社实际系统中正式应用,为实际盲人用户提供服务。
[Abstract]:In 2005, the DAISY 3.0 standard, published by the National Information Standards Organization (ISO), was formally incorporated into the national standard by the National Standards Association (ANSI), which defines the content and format of the audio e-book, which includes XML text. The corresponding audio and other necessary resource files. Compared with the traditional e-book format, Daisy e-book format has many advantages, Daish allows visually impaired people to easily browse books, It is an e-book standard for the visually impaired and the dyslexic. According to the official statistics of the China Association of disabled Persons in 2006, by the end of 2006, the number of people with disabilities of all kinds in China had reached about 82.96 million. Among them, the number of people with visual disability is about 12.33 million, and the number is increasing year by year. People with visual impairment and people with dyslexia are unable to have the same free reading experience as normal people because of congenital or acquired defects. China Braille Publishing House hopes to develop a DAISY reading software suitable for the visually impaired. Firstly, according to the DAISY3.0 standard, this paper develops an e-book reading software DAISYAPPbased on the DAISY3.0 format of the iOS system, which can be read at the root. Navigation according to the directory, Can also be based on the upper and lower sentences, upper and lower paragraphs to switch, while playing audio at the same time highlight the corresponding text content. Secondly, build a background server, The DAISY reading recommendation system for visually impaired people based on APP is implemented. The original recommendation system algorithm is considered from two aspects: content-based recommendation algorithm and collaborative filtering recommendation algorithm. After the user feedback and the characteristics of mobile user environment, a reasonable fusion method for mobile end based on item recommendation and user recommendation is proposed. Finally, aiming at the characteristics of visually impaired people, a new method is proposed. A user behavior recommendation algorithm based on APP is proposed. The experimental results on the real data set show that the algorithm is superior to the traditional recommendation algorithm when it is recommended for the visually impaired. It is proved that the improved recommendation system is feasible in improving the reading experience of the visually impaired people. Meanwhile, the improved version has been formally used in the practical system of China Braille Publishing House to provide service to the actual blind users.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP391.3

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