PIERRE LISON THESIS

We describe below each of these components one by one. Situated resolution and generation of spatial referring expressions for robotic assistants. A feature value can also specify a pointer to another belief, allowing us to capture the relational structure of the environment we want to model. In Von der Form zur Bedeutung: The robot must therefore be capable of actively focusing on the important, rele- vant areas while ignoring the rest. The similarity of a pair of beliefs is based on the correlation of their content and spatial frame , plus other parameters such as the time distance between beliefs. The first public release of the OpenDial toolkit is finally available!

The Markov Logic Network for temporal smoothing is similar to the one used for multi-modal fusion: To be able to interact naturally with humans, robots needs to be aware of their own environment. A-magasinet featured this week a three-pages article on Lenny and my research on human-robot interaction through spoken dialogue. For continuous distribution, we generally assume a known distribution for instance, a normal distribution combined with the required parameters e. The outcome of the tracking step is a distribution over temporal unions, which are combinations of beliefs from different spatio-temporal frames. The components can access sensors, effectors, as well as a blackboard working memory available for the whole subarchitecture.

In graph theory, a clique is a fully connected subgraph — that is, a subset of nodes where each node is connected with each other. Given the probabilistic nature of the framework, the number of beliefs thessi likely to grow exponentially over time.

Pierre Lison Completes Doctoral Degree – Department of Informatics

A feature value can also specify a pointer to another belief, allowing us to capture the relational structure of the environment we want to model. A basic cognitive system for interactive continuous learning of visual concepts. They can also be used by perceptual components to adapt their internal pierer operations to the pietre situated context contextual priming, anticipation, etc. For more information tnesis Markov Logic is a combination of first-order logic and probabilistic modelling.

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In most practical cases, such formula can be represented as a flat list of features. The components can be either unmanaged data-driven or managed goal- driven. The resulting beliefs can also be easily accessed and retrieved by the other subarchitectures. Click here to sign up. Such ability is crucial to establish transparency in situated dialogue between the robot and one or more human interlocutor sfor instance in socially guided learning tasks [32,30,26].

Pierre Lison Completes Doctoral Degree

The value of the feature fi x is 1 if Lisn is true given x and 0 otherwise. After defending his PhD inhe was awarded a research grant from the Research Council of Norway for a postdoctoral project on statistical machine translation, also conducted at the University of Oslo. Bottom-up learning of markov logic network structure. Huynh and Raymond J. Taskar, editors, Introduction to Statistical Relational Learning.

Philosophical Transactions of the Royal Society of London: Parameters such as recency have to be taken into account, in order to discard outdated observations.

pierre lison thesis

We concentrate here on the question of belief extension via linguistic interac- tion. A Systems and Representational Approach.

Starting from next month, I will work as a Postdoctoral Research Fellow for a 3-years project funded by the Norwegian Research Council. Anal- ogous to perceptual grouping which seeks to bind observations over modalities, tracking seeks to bind beliefs over time.

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The similarity of a pair of beliefs is based on the correlation of their content and spatial frameplus other parameters such as the time distance between beliefs. Attributed beliefs are beliefs which are ascribed to other agents.

In the case of world x, the first formula is violated, while the second is not. A computer vision integration model for a multi-modal cognitive system. Our approach departs from previous work such as [13] or [27] by introducing a much richer modelling of multi- modal beliefs.

And finally, in complement to information refinement, beliefs are also abstracted by constructing high-level, amodal sym- bolic representations from low-level perceptual i. The graphical representation of ML,C contains a node for each ground pred- icate. By Jeremy L Wyatt. This enables the system to deal with varying levels of noice and uncertainty, which are pervasive and unavoidable for most sensory-motric processes.

pierre lison thesis

Situated resolution and generation of spatial referring expressions for robotic assistants. Instead, they include in their belief history a pointer to the local data structure in the subarchitec- ture which was at the origin of the belief.

This can be done by breaking down the formulae into ele- mentary predications, and assuming conditional independence between these elementary predicates.