understanding, manipulating and searching hand-drawn concept maps

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	understanding, manipulating and searching hand-drawn concept maps
	Jiang Yingying ; Tian Feng ; Zhang Xiaolong ; Dai Guozhong ; Wang Hongan
刊名	ACM Transactions on Intelligent Systems and Technology
	2011
卷号	3 期号:1 页码:-
关键词	Algorithms Dynamic programming Intelligent robots Personal computers
ISSN号	2157-6904
中文摘要	Concept maps are an important tool to organize, represent, and share knowledge. Building a concept map involves creating text-based concepts and specifying their relationships with line-based links. Current concept map tools usually impose specific task structures for text and link construction, and may increase cognitive burden to generate and interact with concept maps. While pen-based devices (e.g., tablet PCs) offer users more freedom in drawing concept maps with a pen or stylus more naturally, the support for hand-drawn concept map creation and manipulation is still limited, largely due to the lack of methods to recognize the components and structures of hand-drawn concept maps. This article proposes a method to understand hand-drawn concept maps. Our algorithm can extract node blocks, or concept blocks, and link blocks of a hand-drawn concept map by combining dynamic programming and graph partitioning, recognize the text content of each concept node, and build a concept-map structure by relating concepts and links. We also design an algorithm for concept map retrieval based on hand-drawn queries. With our algorithms, we introduce structure-based intelligent manipulation techniques and ink-based retrieval techniques to support the management and modification of hand-drawn concept maps. Results from our evaluation study show high structure recognition accuracy in real time of our method, and good usability of intelligent manipulation and retrieval techniques. © 2011 ACM.
英文摘要	Concept maps are an important tool to organize, represent, and share knowledge. Building a concept map involves creating text-based concepts and specifying their relationships with line-based links. Current concept map tools usually impose specific task structures for text and link construction, and may increase cognitive burden to generate and interact with concept maps. While pen-based devices (e.g., tablet PCs) offer users more freedom in drawing concept maps with a pen or stylus more naturally, the support for hand-drawn concept map creation and manipulation is still limited, largely due to the lack of methods to recognize the components and structures of hand-drawn concept maps. This article proposes a method to understand hand-drawn concept maps. Our algorithm can extract node blocks, or concept blocks, and link blocks of a hand-drawn concept map by combining dynamic programming and graph partitioning, recognize the text content of each concept node, and build a concept-map structure by relating concepts and links. We also design an algorithm for concept map retrieval based on hand-drawn queries. With our algorithms, we introduce structure-based intelligent manipulation techniques and ink-based retrieval techniques to support the management and modification of hand-drawn concept maps. Results from our evaluation study show high structure recognition accuracy in real time of our method, and good usability of intelligent manipulation and retrieval techniques. © 2011 ACM.
收录类别	EI
语种	英语
WOS记录号	WOS:000313763200011
公开日期	2013-10-08
内容类型	期刊论文
源URL	[http://ir.iscas.ac.cn/handle/311060/16183]
专题	软件研究所_软件所图书馆_期刊论文
推荐引用方式 GB/T 7714	Jiang Yingying,Tian Feng,Zhang Xiaolong,et al. understanding, manipulating and searching hand-drawn concept maps[J]. ACM Transactions on Intelligent Systems and Technology,2011,3(1):-.
APA	Jiang Yingying,Tian Feng,Zhang Xiaolong,Dai Guozhong,&Wang Hongan.(2011).understanding, manipulating and searching hand-drawn concept maps.ACM Transactions on Intelligent Systems and Technology,3(1),-.
MLA	Jiang Yingying,et al."understanding, manipulating and searching hand-drawn concept maps".ACM Transactions on Intelligent Systems and Technology 3.1(2011):-.