检索结果-南通市图书馆

educational videos Subtitles’Summarization Using Latent Dirichlet Allocation and Length Enhancement

Computers, Materials & Continua 2022年第3期70卷 6205-6221页

作者： Sarah S.Alrumiah Amal A.Al-Shargabi Department of Information Technology College of ComputerQassim UniversityBuraydah51452Saudi Arabia

Nowadays,people use online resources such as educational videos and ***,such videos and courses are mostly long and thus,summarizing them will be *** video contents(visual,audio,and subtitles)could be analyzed to generate textual summaries,i.e.,***’subtitles contain significant ***,summarizing subtitles is effective to concentrate on the necessary *** of the existing studies used Term Frequency-Inverse Document Frequency(TF-IDF)and Latent Semantic Analysis(LSA)models to create lectures’*** study takes another approach and applies LatentDirichlet Allocation(LDA),which proved its effectiveness in document ***,the proposed LDA summarization model follows three *** first phase aims to prepare the subtitle file for modelling by performing some preprocessing steps,such as removing stop *** the second phase,the LDA model is trained on subtitles to generate the keywords list used to extract important *** in the third phase,a summary is generated based on the keywords *** generated summaries by LDA were lengthy;thus,a length enhancement method has been *** the evaluation,the authors developed manual summaries of the existing“EDUVSUM”educational videos *** authors compared the generated summaries with the manual-generated outlines using two methods,(i)Recall-Oriented Understudy for Gisting Evaluation(ROUGE)and(ii)human *** performance of LDA-based generated summaries outperforms the summaries generated by TF-IDF and *** reducing the summaries’length,the proposed length enhancement method did improve the summaries’precision *** domains,such as news videos,can apply the proposed method for video summarization.

关键词： Subtitle summarization educational videos topic modelling LDA extractive summarization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Audio Description for educational videos on COVID-19 Response:A Corpus-Based Study on Linguistic and Textual Idiosyncrasies

引用

Journal of Literature and Art Studies 2023年第4期13卷 276-285页

作者： XIONG Ling-song College of Foreign Languages Chongqing Medical UniversityChongqingChina

Audio description(AD),unlike interlingual translation and interpretation,is subject to unique constraints as a spoken *** by AD,educational videos on COVID-19 anti-virus measures are made accessible to the visually *** this study,a corpus of AD of COVID-19 educational videos is developed,named“Audio Description Corpus of COVID-19 educational videos”(ADCCEV).Drawing on the model of Textual and Linguistic Audio Description Matrix(TLADM),this paper aims to identify the linguistic and textual idiosyncrasies of AD themed on COVID-19 response released by the New Zealand *** study finds that linguistically,the AD script uses a mix of complete sentences and phrases,the majority being in Present Simple *** participles and the“with”structure are used for *** is diverse,with simpler words for animated ***-person pronouns are common in educational *** words are a salient feature of AD,where“yellow”denotes urgency,and“red”indicates importance,negativity,and *** textual idiosyncrasies,coherence is achieved through intermodal components that align with the video’s mood and *** style varies depending on the video’s purpose,from informative to narrative or expressive.

关键词： Audio Description COVID-19 educational videos corpus-based study

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Basic Concepts for Alternating Current through educational videos

引用

Journal of Mechanics Engineering and Automation 2014年第11期4卷 914-918页

作者： Gilmar Barreto Carlos Alberto Favarin Murari Department of Semiconductors Instruments and Photonic University of Campinas Sao Paulo 13083-852 Brazil Department of Systems and Energy University of Campinas Sao Paulo 13083-852 Brazil

This article highlights the importance of complementing classes through educational videos, especially in disciplines exclusively with lectures. This proposition is exemplified through basic concepts in alternating current for both single-phase and three-phase circuits, which are critical in the formation of electrical engineers, mechanics, chemists, etc. The main objective of conducting educational videos is to make learning more attractive and stimulate interest in acquiring the knowledge of certain topics, given their importance in professional life in different engineering areas. The videos, filmed in laboratory and of short duration, aim to complement and consolidate the content taught in the classroom lectures.

关键词： Audiovisual alternating current circuits electrotechnical engineering education educational videos

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：