Geotec organizes a Tableau course in the GEO-C context

Last Nowadays, dashboards and interactive visualizations techniques are becoming very popular. Among the different tools that we can find in the market we highlight Tableau, which is an interactive data visualization product focused on business intelligence. Thus, if you want to analyze your data geographically, it is also possible to plot data on a map in Tableau.

Thus, last 28th February, we organized a one day course tought by official Tableau instructors centered on the mapping capabilities of this leading tool. This course was partially funded by GEO-C project.

 

SEVERAL WAYS TO #ENJOY #MAPS TALK BY @JOSEPHKERSKI AT #UJICAMPUS

Yesterday, March 21st,  GEOTEC received Prof. Joseph Kerski from the University of Denver and ESRI Education manager.

Kerski, renowned for his passion for GIS and Geography, gave a talk titled The world in your hands: the influence of maps in the information age . Joseph presented an easygoing talk addressed to all kind of audiences, centered in the main idea about the importance of “place” and “space” in the current society. Joseph showed how Geotechnologies are embedded in different services and applications of daily use.

Continue reading

“Improving Transparency through Web Maps”, paper accepted for presentation at the 4th International Smart City Workshop.

The paper Improving Transparency through Web Maps (by Auriol Degbelo and Tomi Kauppinen) has been accepted for presentation at the 4th International Smart City Workshop, co-located with the Web Conference.

Abstract: Recent years have witnessed progress of public institutions in making their datasets available online, free of charge, for re-use. This notwithstanding, there is still a long way to go to put the power of data in the hands of citizens. This article suggests that transparency in the context of open government can be increased through web maps featuring: i) Application Programming Interfaces (APIs) which support app and data usage tracking; and (ii) `transparency badges’ which inform the users about the presence/absence of extra, useful contextual information. Eight examples of web maps are introduced as proof of concept for the idea. Designing and implementing these web maps has reminded of the need of interactive guidelines to help non-experts select vocabularies, and datasets to link to. The ideas presented are relevant to making existing open data more user friendly (and ultimately more usable).

 

“Integrating human specificities in the development of pedestrian navigation algorithms”, a talk by Dr. Valérie Renaudin.

On February 21, we enjoyed the visit of Dr. Valérie Renaudin, from the French Research Institute on Transport (IFSTTAR), in Nantes, France. She leads the Geopositioning Laboratory (GEOLOC) and chairs the next IPIN 2018 conference. Dr. Renaudin gave a lecture titled “Integrating human specificities in the development of pedestrian navigation algorithms”. In the talk, Dr. Renaudin introduced us to current problems and solutions of position estimation using inertial sensors measurements. She also described the advances she and her laboratory members have so far achieved in this regard, stressing the high complexity involved in creating a model that covers human gait features for everybody. In addition, Dr. Renaudin presented their experiences in using the combination of digital urban data and computer vision to improve inertial sensors-based position estimations. The combination is particularly applicable for augmented reality applications, where the user interaction provides extra information that is valuable for positioning. This invited lecture is part of the GEOTEC’s activities in the context of the GEO-C project.

USE AND DIFFUSION OF #RESEARCHDATA – A PANEL #JOBSEU2018

0The 7 th edition of the “Jornadas del Observatorio de Empleo universitario”, a workshop dedicated for the university employment observatory, took place in the Menador, a new building
in the city center shared by the University and the City Council. Carlos was invited to participate as a panellist in the panel called “Use and diffusion of data of employment insertion data: case of university graduates”. The scenery was fantastic: 3 panellists and the facilitator (right-most person below) in comfortable armchairs like talk shows that we usually watch on TV.

I tried to transmit 3 basic ideas to the audience, mostly university technicians who were expert in crafting questionnaires and analysing employment data.

Continue reading

Career development session for GEO-C doctoral students: Suez Spain.

Recently (January 8th), GEOTEC hosted an industrial talk targeting our GEO-C doctoral students (link: http://geo-c.eu), and all GIS enthusiasts, given by representatives of Suez Water Spain (link: http://suez.es/). Suez is a multi-national company active in 5 continents, with over 80 000 employees and 400 000 clients, who mainly – but not exclusively – perform projects related to water treatment and management. Clearly, Geographic Information technologies and techniques play a central role in the developed solutions.
Suez gave an overview of the types of projects they are involved in, along with some concrete examples. They then summarised how projects are typically developed, the different roles in projects, how GIS professionals and geospatial technologies fit within a project, and how a GIS specialist fits in the workspace in general and may develop his/her career.

Publication accepted for UrbanGIS2017 – Linked Data and Visualization: Two Sides of the Transparency Coin!

The paper “Linked Data and Visualization: Two Sides of the Transparency Coin” by Auriol Degbelo has been accepted for presentation at the upcoming UrbanGIS Workshop on Smart Cities and Urban Analytics.

Abstract: Transparency is an important element of smart cities, and ongoing work is exploring the use of available open data to maximize it. This position paper argues that Linked Data and visualization play similar roles, for different agents, in this context. Linked Data increases transparency for machines, while visualization increases transparency for humans. The work also proposes a quantitative approach to the evaluation of visualization insights which rests on two premises: (i) visualizations could be modelled as a set of statements made by authors at some point in time, and (ii) statements made by experts could be used as ground truth while evaluating how much insights are effectively conveyed by visualizations on the Web. Drawing on the linked data rating scheme of Tim Berners-Lee, the paper proposes a five-stars rating scheme for visualizations on the Web. The ideas suggested are relevant to the development of techniques to automatically assess the transparency level of existing visualizations on the Web.

Feature-centric algorithms for georeferenced video search

The paper “Feature-centric ranking algorithms for georeferenced video search” (Authors: Holger Fritze, Auriol Degbelo, Tobias Brüggentisch and Christian Kray) has been accepted for presentation at the upcoming ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems!

Abstract: While it is commonplace to retrieve photos showing a particular feature (e.g. through tools such as Google Pictures or Bing Images), spatial approaches for retrieving videos showing a particular feature (e.g. a building) have yet to be established. This article proposes five ranking algorithms to query georeferenced videos for a specific feature based on the videos’ spatio-temporal metadata. 12 relevance criteria for feature-centric video ranking were compiled from a focus group discussion. From these, four criteria have been selected for implementation: “Feature Depiction”, “Feature Illumination”, “Feature Visibility Duration”, and “Distance to Feature”. These criteria were implemented in five algorithms and evaluated regarding efficiency and user perceived plausibility. The evaluation suggests that the “Feature Visibility Duration” of the video’s viewshed with the queried feature geometry offers a good trade-off between computationally performant and cognitive plausible ranking. The obtained results are relevant to user-centered approaches for interacting with georeferenced videos.