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Information Visualization for Knowledge Discovery: An Introduction
This document provides an introduction to information visualization and its role in knowledge discovery. It discusses the challenges of understanding large datasets and how information visualization techniques like scatter plots, maps, and interactive visualizations can help identify patterns, trends, outliers and support communication and discovery. Examples of information visualization tools and techniques are presented across different data types like temporal, hierarchical, and network data.
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Information Visualization for Knowledge Discovery: An Introduction
- 1. Informa(on Visualiza(on for Knowledge Discovery: An Introduc+on Krist Wongsuphasawat Dept. of Computer Science & Human-‐Computer Interac+on Lab University of Maryland CP30 / Intania 87
- 2. University of Maryland, College Park Ò near Washington, DC
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- 4. HCIL Ò Human-‐Computer Interac+on Lab Ò hKp://www.cs.umd.edu/hcil/
- 5. HCI Ò Human-‐Computer Interac+on Ò A discipline concerned with the analysis, design, implementa+on, and evalua+on Ò of interac+ve compu+ng systems for human use Design Analysis Implementation Evaluation
- 6. Why HCI? Computer Abilities Human Abilities 1950 1990 2030
- 7. HCI Research Ò Devices É Touch screen, e-‐Book Reader, Wii, Natal, Pen É Mobile Phone Ò User Interfaces É for collabora+on, elderly, children, handicaps É Query, Zoomable É … Ò Design Process Ò Evalua+on methods Ò Informa(on Visualiza(on (Info. Vis.) Ò Etc.
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- 15. Interna(onal Children Digital Library
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- 18. Challenges Ò Huge amount of data Ò How to understand and make use of it? Ò What ques+on to ask?
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- 20. Challenges Ò Iden+fy É Trends É PaKerns É Outliers Ò Goals É Communica+on É Discovery
- 21. The eye... the window of the soul, is the principal means by which the central sense can most completely and abundantly appreciate the infinite works of nature. Leonardo da Vinci(1452 -‐ 1519)
- 22. The eye... thewindow of the soul, is the principal means by which the central sense can most completely and abundantly appreciate the infinite works of nature. Leonardo da Vinci(1452 - 1519)
- 23. The eye... thewindow of the soul, is the principal means by which the central sense can most completely and abundantly appreciate the infinite works of nature. Leonardo da Vinci(1452 - 1519)
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- 29. A picture isworth a thousand words.
- 30. Informa(on Visualiza(on Ò Provide tools that present data in a way to help people understand and gain insight from it. Ò The use of computer-‐supported, interac+ve, visual representa+ons of abstract data to amplify cogni+on.
- 31. Interdisciplinary Ò human-‐computer interac+on, Ò computer science, Ò graphics, Ò visual design, Ò psychology, Ò and business methods
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- 35. Outliers He Rn
- 36. John Snow: The London Cholera Epidemic of 1854
- 37. John Snow: The London Cholera Epidemic of 1854 Ò hKp://www.csiss.org/classics/content/8
- 38. Charles Minard's map of Napoleon's march
- 40. The growth of Facebook
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- 42. Informa(on Visualiza(on: Mantra Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand Ò Overview, zoom & filter, details-‐on-‐demand
- 43. Treemap: Stock market, clustered by industry Map of the Market -‐ hKp://www.smartmoney.com/map-‐of-‐the-‐market/
- 44. Market falls steeply Feb 27, 2007, with one excep(on
- 45. Market falls 311 points July 26, 2007, with a few excep(ons
- 46. Market mixed, October 22, 2007, Energy & Basic Material are down
- 47. TimeSearcher Ò Demo Ò hKp://www.cs.umd.edu/hcil/+mesearcher
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- 50. Wordle: Google’s Corporate Informa(on
- 51. Baby NameVoyager Ò hKp://www.babynamewizard.com/voyager
- 52. NetFlix Rental PaTerns http://www.nytimes.com/interactive/2010/01/10/nyregion/20100110-netflix-map.html
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- 56. SocialAc(on Ò Video Ò hKp://www.cs.umd.edu/hcil/socialac+on
- 57. Informa(on Visualiza(on: Data Types SciViz . Ò 1-‐D Linear Document Lens, SeeSo^, Info Mural, Value Bars Ò 2-‐D Map GIS, ArcView, PageMaker, Medical imagery Ò 3-‐D World CAD, Medical, Molecules, Architecture Ò Mul(-‐Var Parallel Coordinates, Spo_ire, XGobi, Visage, Influence Explorer, TableLens, InfoViz DEVise Ò Temporal Perspec+ve Wall, LifeLines, Lifestreams, Project Managers, DataSpiral Ò Tree Cone/Cam/Hyperbolic, TreeBrowser, Treemap Ò Network Netmap, netViz, SeeNet, BuKerfly, Mul+-‐trees (Online Library of Informa+on Visualiza+on Environments) hKp://otal.umd.edu/Olive
- 58. ManyEyes: A web sharing plajorm hKp://services.alphaworks.ibm.com/manyeyes/app
- 59. Conclusion Ò Informa+on Visualiza+on É Provide tools that present data in a way to help people understand and gain insight from it. É Applicable to various domains Ò More info É hKp://www.cs.umd.edu/hcil É hKps://wiki.cs.umd.edu/cmsc734_09/ Ò Contact É kristw@cs.umd.edu É hKp://www.cs.umd.edu/~kristw Ò Acknowledgement É Ben Shneiderman’s slides É Ben Bederson’s slides É hKp://www.cs.umd.edu/hcil/pubs/presenta+ons/
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