Representing Unevenly-Spaced Time Series Data for Visualization and Interactive Exploration

Autor: Galit Shmueli, Catherine Plaisant, Wolfgang Jank, Ben Shneiderman, Aleks Aris
Rok vydání: 2005
Předmět:
Zdroj: Human-Computer Interaction-INTERACT 2005 ISBN: 9783540289432
INTERACT
DOI: 10.1007/11555261_66
Popis: Visualizing time series is useful to support discovery of relations and patterns in financial, genomic, medical and other applications. Often, measurements are equally spaced over time. We discuss the challenges of unevenly-spaced time series and present fourrepresentationmethods: sampled events, aggregated sampled events, event index and interleaved event index. We developed these methods while studying eBay auction data with TimeSearcher. We describe the advantages, disadvantages, choices for algorithms and parameters, and compare the different methods for different tasks. Interaction issues such as screen resolution, response time for dynamic queries, and learnability are governed by these decisions.
Databáze: OpenAIRE