Jérémie Dumas

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Fused Filament Fabrication (FFF) is the process of 3D printing objects from melted plastic filament. The hot plastic exits a nozzle and fuses with the part just below, adding a layer of material to the object being formed. However, filament can only be deposited <i>on top</i> of an existing surface. Therefore, overhangs require a disposable <i>support(More)
Several techniques exist to automatically synthesize a 2D image resembling an input exemplar texture. Most of the approaches optimize a new image so that the color neighborhoods in the output closely match those in the input, across all scales. In this paper we revisit by-example texture synthesis in the context of additive manufacturing. Our goal is to(More)
The field of topology optimization seeks to optimize shapes under structural objectives, such as achieving the most rigid shape using a given quantity of material. Besides optimal shape design, these methods are increasingly popular as design tools, since they automatically produce structures having desirable physical properties, a task hard to perform by(More)
Microstructures at the scale of tens of microns change the physical properties of objects, making them lighter or more flexible. While traditionally difficult to produce, additive manufacturing now lets us physically realize such microstructures at low cost. In this paper we propose to study procedural, aperiodic microstructures inspired by Voronoi(More)
—This paper deals with diffusion processes in dynamic networks. We propose new notions for measuring the exposure of a node to diffusion processes taking place over the network, that is the likelihood of the node to be affected by such processes. We introduce different exposure scores, based either on contacts or on flows in the dynamic network. We study(More)
This paper describes a qualitative model of the functioning of salmon redds, places where salmon reproduction occurs in the rivers. For this, we used Qsim, which appeared adequate for representing available qualitative knowledge of hydro-ecology experts. Since the number of relevant variables was relatively large, it appeared necessary to decompose the(More)
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