Enhanced Family Tree

Enhanced Family Tree

Year
2018–20
Research direction
Metaphor as Medium
Role
Research project
Team
Fan Xiang · Shunshan Zhu · Zhigang Wang · Kevin Maher · Yi Liu · Yilin Zhu · Kaixi Chen · Zhiqiang Liang
Contributions
Fan Xiang — cocreator, artist, researcher · Shunshan Zhu — founder, cocreator, technical director · Zhigang Wang — artist, researcher · Kevin Maher — designer · Kaixi Chen — senior software engineer · Yi Liu, Yilin Zhu, Zhiqiang Liang — student researchers
Source
China Biographical Database
Includes
Installation series · Interactive work · Paper

Enhanced Family Tree is an evolving series of visualizations and installations built from ancient Chinese genealogical records. Moving from printed plates and crystal objects to an interactive family forest, the project asks how the familiar metaphor of a tree can reveal both the scale of family history and the uncertainty inside its records.

Installation seriesInteractive workPaper

Original project record

View archived page ↗
  • Exhibited at IEEE VIS Arts Program, Berlin (2018); XXII Triennale di Milano (2019); the National Museum of China (2019); and Mirror & State, Beijing (2019).
  • Enhanced Family Tree received the SIGGRAPH 2020 Art Papers Best Paper Award.
Enhanced Family Tree: English project talk.
01

Beginning with a historical database

The research uses the China Biographical Database, which contained records for approximately 427,000 people as of April 2019. Rather than treating this material as a finished account of the past, the team retained its gaps and contradictions so the condition of the archive would remain visible.

02

When an error becomes a clue

The Reingold–Tilford algorithm arranged people by generation and parent–child relationship. Unexpected long horizontal lines exposed biologically impossible cases in which one child appeared to have multiple fathers. What first looked like a failure of the visualization became a way to locate disputed records and formulate new historical questions.

03

Returning from the image to the document

The team examined cases such as the Southern Song poet Wang Ruan by comparing the visual anomaly with poetry and historical literature. Visualization did not settle the lineage; it identified where closer documentary research was needed and made previously buried contradictions available for discussion.

04

Four generations of exhibition

The project evolved through four forms: backlit X-ray-style family trees at IEEE VIS 2018; laser-etched crystal trees for hand-held observation; rendered three-dimensional family forms at the National Museum of China; and a twelve-metre interactive family forest created in Beijing in 2019. Each version changed dimension, material, scale, and the audience’s relationship to the data.

05

The tree as a visual metaphor

Branches, growth, leaves, and the space of a forest make a large relationship system intuitively approachable without removing its complexity. In the interactive installation, visitors enter a surname, select a historical person, and watch a lineage grow across the projected field.

06

Questions from the public

Audience responses became part of the research. Historians asked whether the technique could identify disputed relationships; visitors asked whether they could find or add themselves. These questions expanded the project from displaying genealogy toward historical inquiry, public participation, and the ethical limits of future family-tree systems.

Multiple historical family trees visualized as branching relationship systems
Enhanced Family Tree: A comparative field of historical genealogies rendered as relationship systems.
Visitor viewing the Enhanced Family Tree interactive installation
Installation View: A visitor explores a family lineage through the projected interface.
Comparative plots of the Zhu, Zhang, Li, and Wang family trees
Comparative View: The Zhu, Zhang, Li, and Wang genealogies plotted across historical periods.
427Kpeople in the CBDB source
7th–19th c.historical time range
4generations of the project
07

Four generations of expression

The work evolved from backlit 2D family trees to laser-engraved crystal objects, 3D rendered genealogies, and Ancient Chinese Family Forest, a 40-foot interactive projection created in 2019 and navigated by tablet.

08

Keeping errors visible

Rather than cleaning every conflict from the source, the system preserves impossible parent–child relationships. When the tree-layout algorithm breaks into long horizontal lines, the visual anomaly becomes evidence of a problem in the historical record.

09

What the forest revealed

Comparing royal and non-royal lineages made different historical life spans visible. The Hu lineage extends across 1,031 years and 44 generations, while politically powerful families can appear as abrupt, short-lived forms.

Award recognition

SIGGRAPH 2020 Art Papers Best in Show

ACM SIGGRAPH interviewed Fan Xiang after Enhanced Family Tree received the Art Papers program’s Best in Show award.

Official interview

ACM SIGGRAPH Blog · 3 September 2020SIGGRAPH 2020 Art Papers Best in Show Reimagines the Family Tree

Fan Xiang discusses the project’s origins, its evolving visualization experiments, the organic tree metaphor, the collaborative process, and the significance of the award.

Read interview ↗

Recognition

SIGGRAPH 2020 · Art PapersBest in Show

The official SIGGRAPH account identifies Enhanced Family Tree: Evolving Research and Expression as the program’s Best in Show award recipient.

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