Frédéric Maire

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Most on-line cursive handwriting recognition systems use a lexical constraint to help improve the recognition performance. Traditionally, the vocabulary lexicon is stored in a trie (automaton whose underlying graph is a tree). In this paper, we propose a solution based on a more compact data structure, the directed acyclic word graph (DAWG). We show that(More)
Technology is advancing at a rapid pace, automating many everyday chores in the process. Information technology (IT) is changing the way we perform work and providing society with a multitude of entertainment options. Unfortunately, in the past designers of many software systems have not considered the disabled as active users of technology, and thus this(More)
Perceptual aliasing makes topological navigation a difficult task. In this paper we present a general approach for topological SLAM (simultaneous localisation and mapping) which does not require motion or odometry information but only a sequence of noisy measurements from visited places. We propose a particle filtering technique for topological SLAM which(More)
Over the last few years a number of schemes for encoding compositional structure in distributed representations have been proposed, e.g., Smolensky's tensor products, Pollack's RAAMs, Plate's HRRs, Halford et al's STAR model, and Kanerva's binary spatter codes. All of these schemes can placed in a general framework involving superposition and binding of(More)
In this paper we propose a method for vision only topological simultaneous localisation and mapping (SLAM). Our approach does not use motion or odometric information but a sequence of noisy visual measurements observed by traversing an environment. In particular, we address the perceptual aliasing problem which occurs using external observations only in(More)
Maintenance trains travel in convoy. In Australia, only the first train of the convoy pays attention to the track sig-nalization (the other convoy vehicles simply follow the preceding vehicle). Because of human errors, collisions can happen between the maintenance vehicles. Although an anti-collision system based on a laser distance meter is already in(More)
In this paper we propose a model-free appearance-based method to automatically determine places as landmarks for topological navigation. Most of the current approaches for automatically selecting landmarks are based on template models or complex feature detectors. We use modified colour histograms, more precisely an entropy-constrained 3D colour clustering(More)