Publications by Alejandra Garcia Rojas Martinez

Blue Brain Nexus: An open, secure, scalable system for knowledge graph management and data-driven science

Henry Markram, Sean Lewis Hill, Samuel Claude Kerrien, Carolina Johanna Elisabeth Lindqvist, Alejandra Garcia Rojas Martinez, Huanxiang Lu, Mohameth François Sy, Anna-Kristin Kaufmann, Jonathan Raël Lurie, Henry Genet

Modern data-driven science often consists of iterative cycles of data discovery, acquisition, preparation, analysis, model building and validation leading to knowledge discovery as well as dissemination at scale. The unique challenges of building and simul ...

2023

Knowledge-Based Representation Of 3D Media

Alejandra Garcia Rojas Martinez

In recent years, 3D media have become more and more widespread and have been made available in numerous online repositories. A systematic and formal approach for representing and organizing shape-related information is needed to share 3D media, to communic ...

2010

Semantics for virtual humans

Alejandra Garcia Rojas Martinez

Population of Virtual Worlds with Virtual Humans is increasing rapidly by people who want to create a virtual life parallel to the real one (i.e. Second Life). The evolution of technology is smoothly providing the necessary elements to increase realism wit ...

EPFL2009

Simulation of Individual Spontaneous Reactive Behavior

Daniel Thalmann, Alejandra Garcia Rojas Martinez

The context of this work is the search for realism and believability of Virtual Humans. Our contribution to achieve this goal is to enable Virtual Humans (VH) to react to spontaneous events in virtual environments (VE). In order to reflect the individualit ...

2008

Visual creation of inhabited 3D environments: An ontology-based approach

Daniel Thalmann, Alejandra Garcia Rojas Martinez

The creation of virtual reality applications and 3D environments is a complex task that requires good programming skills and expertise in computer graphics and many other disciplines. The complexity increases when we want to include complex entities such a ...

Springer, Springer-Verlag2008

An ontology of virtual humans: Incorporating semantics into human shapes

Daniel Thalmann, Frédéric Vexo, Alejandra Garcia Rojas Martinez, Laurent Moccozet

Most of the efforts concerning graphical representations of humans (Virtual Humans) have been focused on synthesizing geometry for static or animated shapes. The next step is to consider a human body not only as a 3D shape, but as an active semantic entity ...

2007

Emotional face expression profiles supported by virtual human ontology

Daniel Thalmann, Frédéric Vexo, Alejandra Garcia Rojas Martinez

Expressive facial animation synthesis of human like characters has had many approaches with good results. MPEG-4 standard has functioned as the basis of many of those approaches. In this paper we would like to lay out the knowledge of some of those approac ...

2006

In Search for your own Virtual Individual

Daniel Thalmann, Frédéric Vexo, Alejandra Garcia Rojas Martinez

The use of inhabited Virtual Environments is continuously growing. People can embody a human-like avatar to participate inside these Virtual Environments or they can have personalized character acting as mediator; sometimes they can even customize it to so ...

Springer2006

Individualized Reaction Movements For Virtual Humans

Daniel Thalmann, Frédéric Vexo, Alejandra Garcia Rojas Martinez

2006

Emotional Body Expression Parameters In Virtual Human Ontology

Daniel Thalmann, Frédéric Vexo, Alejandra Garcia Rojas Martinez

2006