一句话：提出 FVT 工具，用代码片段将视频教程片段与文本教程章节关联，提升开发者学习特定知识的效率。
在线资源快速增长为开发者学习提供支持，但文本教程与视频教程单独使用时各有不足：文本教程结构清晰、便于导航，却不易消化；视频教程直观易跟，但预设教学流程在需要特定知识时会造成干扰。本文提出 Fragmented Video Tutor（FVT）方法及工具，以视频教程中提取的代码片段为桥梁，将视频片段与文本教程中的相关章节关联起来，从而结合两类教程优势并弥补各自缺陷。初步评估表明，FVT 能可行地链接两类教程，并提升开发者的学习效果与效率。
Rapid growth of online resources provides massive supports for developers to fulfill their learning tasks. Text tutorial and video tutorial, as the two most common forms of online resources, may not be sufficient to meet developers' specific learning needs if used individually. Text tutorials are well-structured and easy to be navigated, however, digesting the text description may not be always pleasant. Video tutorials are intuitive and easy to follow, however, the pre-determined teaching flow can be very distracting if a specific piece of knowledge is targeted. In this study, we proposed a novel method and its supporting tool — Fragmented Video Tutor (FVT), to facilitate the learning tasks with specific objectives, aiming at augmenting the strengths of both forms of tutorials while offsetting the weaknesses inherent to use each form of tutorials by itself. Specifically, FVT leverages the code snippets extracted from video tutorials as the bridge to link the video fragments in a video tutorial to the relevant sections in text tutorials. The preliminary evaluation results demonstrate that the FVT is a feasible approach to link two forms of tutorials and improve the learning effectiveness and efficiency for developers.
@inproceedings{NongZHCZL19,
title = {FVT: A Fragmented Video Tutor for "Dubbing" Software Development Tutorials},
author = {Chunyin Nong and Qiao Zhang and Liguo Huang and Di Cui and Qinghua Zheng and Ting Liu},
booktitle = {ICSE},
year = {2019},
doi = {10.1109/icse-seet.2019.00018}
}