One challenge in the research of digital humanities is to help humanists explore a large amount of texts with computer technology. Due to the limits of human power, it is impractical or even impossible to ask researchers to read texts intensively or even in a skimming way. One approach is to have computers extract keywords from text so that researchers can explore text properties from the analytic result. In this paper, we introduce the DocuSky platform to help humanists build their own databases. We introduce a notion of text-term relationship graph (TTRG) to represent the relationship between texts and keywords, and adopt online tools to get the visualization of a TTRG. We use several concrete examples to illustrate how a TTRG can help one explore properties in the text.
