Complex Embeddings for Simple Link Prediction

In statistical relational learning, the link prediction problem is key to automatically understand the structure of large knowledge bases. As in previous studies, we propose to solve this problem through latent factorization. However, here we make use of complex valued embeddings. The composition of complex embeddings can handle a large variety of binary relations, among them symmetric and antisymmetric relations. Compared to state-of-the-art models such as Neural Tensor Network and Holographic Embeddings, our approach based on complex embeddings is arguably simpler, as it only uses the Hermitian dot product, the complex counterpart of the standard dot product between real vectors. Our approach is scalable to large datasets as it remains linear in both space and time, while consistently outperforming alternative approaches on standard link prediction benchmarks.Comment: 10+2 pages, accepted at ICML 201

Quelle théorie du capitalisme pour quelle théorie de la reconnaissance ?

Dans cet article, nous défendons la nécessité d’articuler les luttes pour la reconnaissance aux luttes pour l’appropriation. Nous effectuons d’abord un retour sur le déficit socioéconomique de la Théorie critique du capitalisme. Puis, nous tentons d’arrimer la problématique de la reconnaissance à une critique sociohistorique du capitalisme. Nous présentons comment Marx avait lié les questions du capitalisme, de l’accumulation et de la reconnaissance. Enfin, nous exposons des développements au sein du marxisme occidental qui nous paraissent plus aptes à développer les enjeux soulevés par la problématique de la reconnaissance dans le capitalisme avancé.In this paper, we argue in favour of embedding struggles for recognition in struggles for appropriation. In the first section, we highlight the socio-economic antinomies of the Frankfurt’s School critique of capitalism. Then, through a presentation of Marx, we seek to anchor struggles for recognition in a socio-historical critique of capitalism. Lastly, we seek to present promising theoretical developments within Western Marxism to address the issue of recognition in advanced capitalism

On the diameter of random planar graphs

We show that the diameter D(G_n) of a random labelled connected planar graph with n vertices is equal to n^{1/4+o(1)}, in probability. More precisely there exists a constant c>0 such that the probability that D(G_n) lies in the interval (n^{1/4-\epsilon},n^{1/4+\epsilon}) is greater than 1-\exp(-n^{c\epsilon}) for {\epsilon} small enough and n>n_0(\epsilon). We prove similar statements for 2-connected and 3-connected planar graphs and maps.Comment: 24 pages, 7 figure

Mécanismes d'endommagement de différents composites à matrice céramique lors d'un impact à basse vitesse

International audienceL'objectif de cette étude est d'identifier les modes d'endommagement observés lors d'essais d'impact à basse vitesse sur différents CMC tissés. Un composite C/C (2D) et trois composites SiC/SiC (2D ou 3D) ont alors été sollicités au moyen d'une tour de chute et d'un montage de poinçonnement quasi-statique. Nous vérifions une équivalence entre un choc à basse vitesse et la sollicitation quasi-statique. Les dommages générés ont été caractérisés par des méthodes non-destructives - tomographie RX et thermographie IR - afin d'identifier la zone endommagée et d'évaluer la nature de l'endommagement. Les différents matériaux présentent des scénarios d'impact et des mécanismes d'endommagement différents : le dommage d'impact est localisé sur composites SiC/SiC alors qu'il est diffus dans un composite C/C. Les modes d'endommagement dépendent aussi de l'architecture du tissage

Using Software Metrics in the Evaluation of a Conceptual Component Model

International audienceEvery interactive system has a functional part and an interactive part. However the software engineering and the human-computer-interaction communities work separately in terms of methods, models and tools, which induces a work overhead for integrating the results of these efforts, as well as increased inconsistency risks. We endeavour to treat this problem by proposing a design method, which couples the functional kernel and the interaction design. In particular, this method proposes a specific way of structuring the interaction and the business spaces. The structure is based on components called Symphony Objects. In this article, we attempt to evaluate the technical aspect of a Symphony Object model issued from the method by measuring its implementations with software metrics

Using Software Metrics in the Evaluation of a Conceptual Component Model

International audienceEvery interactive system has a functional part and an interactive part. However the software engineering and the human-computer-interaction communities work separately in terms of methods, models and tools, which induces a work overhead for integrating the results of these efforts, as well as increased inconsistency risks. We endeavour to treat this problem by proposing a design method, which couples the functional kernel and the interaction design. In particular, this method proposes a specific way of structuring the interaction and the business spaces. The structure is based on components called Symphony Objects. In this article, we attempt to evaluate the technical aspect of a Symphony Object model issued from the method by measuring its implementations with software metrics

Approche techno-typologique des peignes à tatouer en nacre polynésiens. Un moyen d’appréhender la pensée technique

Nous proposons ici l’étude technologique d’une collection de 17 peignes à tatouer en nacre, découverts en contexte archéologique dans trois archipels de Polynésie française. Elle offre une reconstitution des processus de fabrication intervenant dans la chaîne opératoire et permet aussi d’intégrer ces objets originaux aux typologies existantes. Les peignes en nacre sont également replacés pour la première fois dans une perspective diachronique qui ouvre de nouvelles voies de réflexion quant au modèle de développement régional de ces artefacts.We present here a technological study of a collection of 17 archaeological pearl-shell tattooing combs. They have been discovered in three archipelagoes of French Polynesia. The study offers a reconstitution of the manufacturing processes involved in the “chaîne opératoire”. Then, the combs are integrated to the existing typologies. For the first time, we also put them back in a diachronic perspective that allows new reflections about a model of regional development of these artifacts