GIS Day @ UCSB Geography

GIS day is the third Wednesday of November in each year, during the Geography Awareness Week. As a global event, GIS day provides a great opportunity for GIS users and researchers to exchange ideas and present works to a wide audience. To celebrate this special day for spatial studies, we will hold a lightning talk on Nov. 18th (Tuesday) at the UCSB Center for Spatial Studies. We sincerely invite you to join us and present your work.

STKO at GIScience '14

From Sep 23-26, 2014, Our STKO members and alumni participated in the Eighth International Conference on Geographic Information Science (GIScience 2014) in Vienna, Austria.
Prof. Janowicz co-authored a full paper: “Linked Data - A Paradigm Shift for GIScience” by Werner Kuhn, Tomi Kauppinen and Krzysztof Janowicz.

POI Pulse paper accepted for publication

Just a quick update to mention that our paper POI Pulse: A multi-granual, semantic signatures-based information observatory for the interactive visualization of big geosocial data by Grant McKenzie, Krzysztof Janowicz, Song Gao, Jiue-An Yang and Yingjie Hu was accepted for publication through Cartographica: The International Journal for Geographic Information and Geovisualization.

A cartographic approach to visualize research topics in the 2013 WWW conference

Recently, we have designed a Web-based application to visualize the spatiotemporal evolution of Web related research topics (See the previous blog here). In this application, a word-cloud-based timeline has been employed to visualize the evolution of research topics on the Web. While word clouds have been a popular way to display the prominent terms, they are unable to reveal the relations among the research topics.

Web@25: Exploring the Web-related research topics in space and time

With people around the world celebrating the 25th birthday of the Web, the STKO lab is not an exception. To contribute to this great festival, we designed a Linked-Data powered Web portal using the state-of-the-art Semantic Web technologies. As a lab focusing on spatiotemporal knowledge and information observatory, this Web portal features an exploration of the evolution of Web-related research topics.

The link to the Web portal can be accessed at

Constructing Gazetteers from Volunteered Big Geo-Data Based on Hadoop

A new paper was accepted for journal publication:-)
Song Gao, Linna Li, Wenwen Li, Krzysztof Janowicz, Yue Zhang. (2014) Constructing Gazetteers from Volunteered Big Geo-Data based on Hadoop . Computers, Environment and Urban Systems ,DOI: 10.1016/j.compenvurbsys.2014.02.004, (in press).

POI Pulse: A Multi-Granular, Semantic Signatures-Based Approach for the Interactive Visualization of Big Geosocial Data

The text below is from a recent paper on which we've been working:

McKenzie, G., Janowicz, K., Gao, S., Yang, JA., Hu, Y., (2014: Under Review) POI Pulse: A Multi-Granular, Semantic Signatures-Based Approach for the Interactive Visualization of Big Geosocial Data.

The POI Pulse application in action: (please use Chromium or Firefox)

Workshop on Geographic Information Observatories 2014 call for paper

Our workshop proposal has been accepted by the GIScience 2014 conference, which will be held in Vienna, September, 23-26. The title of the workshop is called Geographic Information Observatories. In this workshop we would like to explore the idea of expanding GIScience research to empirically examine the structure of the geographic information universe itself, with the hope that a better understanding of this universe will ultimately give us new insights into how this information can be utilized.

New Lab Space, Interactive Display, and Google Glass

The STKO lab is moving up in the world (or down to be geometrically accurate). The new lab space opened at the beginning of this year on the 4th Floor in Ellison Hall (one floor down from our previous offices). The bullpen style of the new lab is something we have wanted for a while and really enhances the collaborative environment we encourage in the group.