Expanding LogUI: Adding Screen Capturing and a Statistical Analysis Dashboard for Web-Based Experiments

Logging user interactions allows researchers to study user behavior in web applications. The LogUI framework can be used to log user interactions on virtually any web application. This framework misses two vital features, a screen capture feature and a dashboard for statistical data analysis and visualization for use in web-based experiments...

Quasi-Newton Methods for tSNE

TSNE is a popular technique for visualizing high-dimensional data. It finds a low-dimensional representation of the data, also known as embedding, by optimizing a highly non-linear cost function. The optimization process is done iteratively, often with first-order methods such as gradient descent (GD). The performance of iterative optimization...

Data analysis application for the ORCHID

The Organic Rankine Cycle Hybrid Integrated Device (ORCHID) is a small scale power plant that is used to study the fundamental gas dynamic behavior of dense organic fluids, as well as the behavior of turbomachinery. In order to draw accurate conclusions about the raw sensor data generated by the ORCHID one has to know when the system is in...

Visual Analysis for Sports Sensor Data

In sports, a lot of measurements are done, but most of the time the researchers lack a good analysis tool, and have to do everything by hand. In this work, we present a design for a visual analysis tool for time-varying data. The tool can be used to inspect and compare sports datasets, and to form hypotheses on what parameter values cause a good...

Towards a Functional Interface for Temporal Navigation of News Archives

News producers in the digital era have adopted web standards like XML for representing news stories in datastores. News stories are very time-sensitive information. When this information is archived over time, it could be analyzed to elicit trends and gauge the level of interest in particular topics. A novel way of visualizing this data would...

Visualizing Multiple Two-Dimensional Fields of Data in a Single Image

With advancemens in scientific measurement instruments and simulation tech- niques come increasingly complex and in many cases multivariate data. The devel- opment and improvement of techniques that are able to convey as much information as possible from this data to scientists, doctors, and other potential users is an important research topic...

A Semantic Visual Text Abstract

Today’s readers want a personal, filtered text abstract that gives an objective insight in a book, instead of the current subjective blurb on a book backs. The abstract’s aim, is to analyze a book on a semantic level, showing more than just an analytic visualization of text. A semantic visual text abstract interprets text and returns a filtered...