STRUCTURAL-ANALYSIS OF HYPERTEXTS - IDENTIFYING HIERARCHIES AND USEFUL METRICS

被引:171
作者
BOTAFOGO, RA [1 ]
RIVLIN, E [1 ]
SHNEIDERMAN, B [1 ]
机构
[1] UNIV MARYLAND,COLL PK,MD 20742
关键词
DESIGN; DOCUMENTATION; HUMAN FACTORS; MEASUREMENT; GRAPH THEORY; HIERARCHIES; HYPERTEXT; METRICS; NETWORKS; STRUCTURAL ANALYSIS;
D O I
10.1145/146802.146826
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Hypertext users often suffer from the "lost in hyperspace" problem: disorientation from too many jumps while traversing a complex network. One solution to this problem is improved authoring to create more comprehensible structures. This paper proposes several authoring tools, based on hypertext structure analysis. In many hypertext systems authors are encouraged to create hierarchical structures, but when writing, the hierarchy is lost because of the inclusion of cross-reference links. The first part of this paper looks at ways of recovering lost hierarchies and finding new ones, offering authors different views of the same hypertext. The second part helps authors by identifying properties of the hypertext document. Multiple metrics are developed including compactness and stratum. Compactness indicates the intrinsic connectedness of the hypertext, and stratum reveals to what degree the hypertext is organized so that some nodes must be read before others. Several existing hypertexts are used to illustrate the benefits of each technique. The collection of techniques provides a multifaceted view of the hypertext, which should allow authors to reduce undesired structural complexity and create documents that readers can traverse more easily.
引用
收藏
页码:142 / 180
页数:39
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