Search Results for author: Seppo Virtanen

Found 5 papers, 0 papers with code

A Generative Shape Compositional Framework to Synthesise Populations of Virtual Chimaeras

no code implementations4 Oct 2022 Haoran Dou, Seppo Virtanen, Nishant Ravikumar, Alejandro F. Frangi

Specifically, we propose a generative shape compositional framework which comprises two components - a part-aware generative shape model which captures the variability in shape observed for each structure of interest in the training population; and a spatial composition network which assembles/composes the structures synthesised by the former into multi-part shape assemblies (viz.

Anatomy Self-Supervised Learning +1

Precision-Recall Balanced Topic Modelling

no code implementations NeurIPS 2019 Seppo Virtanen, Mark Girolami

Topic models are becoming increasingly relevant probabilistic models for dimensionality reduction of text data, inferring topics that capture meaningful themes of frequently co-occurring terms.

Dimensionality Reduction Information Retrieval +2

Visualizations Relevant to The User By Multi-View Latent Variable Factorization

no code implementations24 Dec 2015 Seppo Virtanen, Homayun Afrabandpey, Samuel Kaski

The factorization is a generative model in which the display is parameterized as a part of the factorization and the other factors explain away the aspects not expressible in a two-dimensional display.

Data Visualization

Group Factor Analysis

no code implementations21 Nov 2014 Arto Klami, Seppo Virtanen, Eemeli Leppäaho, Samuel Kaski

Factor analysis provides linear factors that describe relationships between individual variables of a data set.

Variational Inference

Identification of structural features in chemicals associated with cancer drug response: A systematic data-driven analysis

no code implementations30 Dec 2013 Suleiman A. Khan, Seppo Virtanen, Olli P Kallioniemi, Krister Wennerberg, Antti Poso, Samuel Kaski

Results: In this paper, we present the first comprehensive multi-set analysis on how the chemical structure of drugs impacts on ge-nome-wide gene expression across several cancer cell lines (CMap database).

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