HDM 2018 - 6th Workshop on High Dimensional Data Mining

Unprecedented technological advances lead to increasingly high dimensional data sets in all areas of science, engineering and businesses. These include genomics and proteomics, biomedical imaging, signal processing, astrophysics, finance, web and market basket analysis, among many others. The number of features in such data is often of the order of thousands or millions - that is much larger than the available sample size.
For a number of reasons, classical data analysis methods inadequate, questionable, or inefficient at best when faced with high dimensional data spaces:
1. High dimensional geometry defeats our intuition rooted in low dimensional experiences, and this makes data presentation and visualisation particularly challenging.
2. Phenomena that occur in high dimensional probability spaces, such as the concentration of measure, are counter-intuitive for the data mining practitioner. For instance, distance concentration is the phenomenon that the contrast between pair-wise distances may vanish as the dimensionality increases.
3. Bogus correlations and misleading estimates may result when trying to fit complex models for which the effective dimensionality is too large compared to the number of data points available.
4. The accumulation of noise may confound our ability to find low dimensional intrinsic structure hidden in the high dimensional data.
5. The computation cost of processing high dimensional data or carrying out optimisation over a high dimensional parameter spaces is often prohibiting.
Topics
This workshop aims to promote new advances and research directions to address the curses and uncover and exploit the blessings of high dimensionality in data mining.
This year we would like to particularly encourage submissions that define and exploit some notion of "intrinsic dimension" or "intrinsic structure" in the learning or optimisation problem that allows solving high dimensional data mining tasks more reliably and more efficiently.
Topics of interest include all aspects of high dimensional data mining, including the following:
- Systematic studies of how the curse of dimensionality affects data mining methods
- Models of low intrinsic dimension: sparse representation, manifold models, latent structure models, large margin, other?
- How to exploit intrinsic dimension in optimisation tasks for data mining?
- New data mining techniques that scale with the intrinsic dimension, or exploit some properties of high dimensional data spaces
- Dimensionality reduction
- Methods of random projections, compressed sensing, and random matrix theory applied to high dimensional data mining and high dimensional optimisation
- Theoretical underpinning of mining data whose dimensionality is larger than the sample size
- Classification, regression, clustering, visualisation of high dimensional complex data sets
- Functional data mining
- Data presentation and visualisation methods for very high dimensional data sets
- Data mining applications to real problems in science, engineering or businesses where the data is high dimensional