publications([{ "lang": "en", "bibtype": "inproceedings", "doi": "http://dx.doi.org/10.1109/PACIFICVIS.2015.7156353", "title": "Dendrogramix: a Hybrid Tree-Matrix Visualization Technique to Support Interactive Exploration of Dendrograms", "url": "http://iihm.imag.fr/blanch/projects/dendrogramix/", "abstract": "Clustering is often a first step when trying to make sense of a large data set. A wide family of cluster analysis algorithms, namely hierarchical clustering algorithms, does not provide a partition of the data set but a hierarchy of clusters organized in a binary tree, known as a dendrogram. The dendrogram has a classical node-link representation used by experts for various tasks like: to decide which subtrees are actual clusters (e.g., by cutting the dendrogram at a given depth); to give those clusters a name by inspecting their content; etc.\r\nWe present Dendrogramix, a hybrid tree-matrix interactive visualization of dendrograms that superimposes the relationship between individual objects on to the hierarchy of clusters. Dendrogramix enables users to do tasks which involve both clusters and individual objects that are impracticable with the classical representation, like: to explain why a particular objects belongs to a particular cluster; to elicit and understand uncommon patterns (e.g., objects that could have been classified in a totally different cluster); etc. Those sensemaking tasks are supported by a consistent set of interaction techniques that facilitates the exploration of large clustering results.\r\n", "authors": { "1": { "first_name": "Renaud", "last_name": "Blanch" }, "2": { "first_name": "Rémy", "last_name": "Dautriche" }, "3": { "first_name": "Gilles", "last_name": "Bisson" } }, "year": 2015, "uri": "http://iihm.imag.fr/publication/BDB15a/", "pages": "31-38", "note": "Best Paper award.", "id": 714, "editor": "IEEE", "address": "Hangzhou, China", "date": "2015-04-14", "document": "http://iihm.imag.fr/publs/2015/PacificVis15_Blanch_Dendrogramix.pdf", "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet", "booktitle": "Proceedings of the 8th IEEE Pacific Visualization Symposium (PacificVis 2015)", "type_publi": "icolcomlec", "abbr": "BDB15a" }, { "lang": "fr", "type_publi": "autre", "title": "Les dendro-matrices : une alternative aux dendrogrammes pour visualiser les résultats d'une classification ascendante hiérarchique", "abstract": "Le résultat d'une classification ascendante hiérarchique est classiquement présenté sous la forme d'un dendrogramme.\r\nCette représentation fournit toute l'information disponible sur les classes mais occulte partiellement celle sur les individus qui ne peuvent être associés qu'à une seule classe élémentaire.\r\n\r\nNous proposons une alternative au dendrogramme, qui dans le même espace présente comme lui la hiérarchie des classes, leur dissimilarité, mais permet de plus la comparaison d'individu à individu ; d'individu à classe ; et de classe à classe.\r\nCette visualisation est un hybride entre un arbre (le dendrogramme) et une matrice (la matrice de distance).\r\n\r\nNous présentons un ensemble de techniques d'interaction associées à cette visualisation.\r\n", "year": 2013, "uri": "http://iihm.imag.fr/publication/BDB13a/", "pages": "33-42", "bibtype": "unpublished", "id": 615, "abbr": "BDB13a", "authors": { "1": { "first_name": "Renaud", "last_name": "Blanch" }, "2": { "first_name": "Rémy", "last_name": "Dautriche" }, "3": { "first_name": "Gilles", "last_name": "Bisson" } }, "date": "2013-01-29", "type": "Autres publications", "booktitle": "actes de l'atelier Visualisation d'information, interaction et fouille de données (GT-VIF)" }, { "lang": "en", "type_publi": "icolcomlec", "doi": "http://dx.doi.org/10.1109/IV.2012.45", "title": "Improving Visualization of Large Hierarchical Clustering", "abstract": "The classical representation of a binary tree generated by a hierarchical clustering is a node-link-based visualization denoted as a dendrogram.\r\nIt allows users to explore in a simple way the clusters and the relationships between instances.\r\nHowever, exploration of large dendrograms is known to be difficult due to the graphical and cognitive information overload involved.\r\nHere, we discuss the current approaches and we introduce Stacked Trees, a new Focus+Context visualization technique that allows the exploration of the hierarchical clustering of up to fifty thousands nodes on a standard-sized screen.", "authors": { "1": { "first_name": "Gilles", "last_name": "Bisson" }, "2": { "first_name": "Renaud", "last_name": "Blanch" } }, "year": 2012, "uri": "http://iihm.imag.fr/publication/BB12b/", "pages": "220-228", "bibtype": "inproceedings", "id": 603, "abbr": "BB12b", "address": "Montpellier, France", "date": "2012-07-10", "document": "http://iihm.imag.fr/publs/2012/IV12-StackedTrees-Bisson.pdf", "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet", "booktitle": "Proceedings of the 16th International Conference on Information Visualisation (IV 2012)" }, { "lang": "en", "bibtype": "unpublished", "doi": "http://dx.doi.org/10.1145/2254556.2254690", "title": "Stacked Trees: a New Hybrid Visualization Method", "abstract": "In this paper, we introduce a new Focus+Context visualization technique, named “Stacked Trees”, allowing us to explore large dendrograms produced by hierarchical clustering.\r\nThis approach displays up to fifty thousands nodes on a standard sized screen.", "year": 2012, "uri": "http://iihm.imag.fr/publication/BB12a/", "pages": "709-712", "note": "Interactive poster", "id": 590, "abbr": "BB12a", "authors": { "1": { "first_name": "Gilles", "last_name": "Bisson" }, "2": { "first_name": "Renaud", "last_name": "Blanch" } }, "date": "2012-05-21", "document": "http://iihm.imag.fr/publs/2012/AVI12-StackedTrees-Bisson.pdf", "type": "Autres publications", "booktitle": "Proceedings of the working conference on Advanced Visual Interfaces (AVI 2012)", "type_publi": "autre" }]);