  We present a novel, web-based visual eye-tracking analytics tool called
Gazealytics. Our open-source toolkit features a unified combination of gaze
analytics features that support flexible exploratory analysis, along with
annotation of areas of interest (AOI) and filter options based on multiple
criteria to visually analyse eye tracking data across time and space.
Gazealytics features coordinated views unifying spatiotemporal exploration of
fixations and scanpaths for various analytical tasks. A novel matrix
representation allows analysis of relationships between such spatial or
temporal features. Data can be grouped across samples, user-defined AOIs or
time windows of interest (TWIs) to support aggregate or filtered analysis of
gaze activity. This approach exceeds the capabilities of existing systems by
supporting flexible comparison between and within subjects, hypothesis
generation, data analysis and communication of insights. We demonstrate in a
walkthrough that Gazealytics supports multiple types of eye tracking datasets
and analytical tasks.
