Upcoming Talks

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Data science of biology

Date: Tuesday, February 12, 2019 10:00 - 11:00
Speaker: Katarzyna Bozek (OIST)
Location: Mondi Seminar Room 2, Central Building
Series: Mathematics and CS Seminar
Host: Gasper Tkacik

Abstract:

Before large datasets became pervasive in all domains, life sciences and biology among them were generating copious and complex data. In my talk I will present through a range of example problems, the evolution and growth
of data analysis in this field. HIV-host interaction, human evolution, or novel ways of quantifying natural behavior
the broad spectrum of applications that I will describe is tied by a common challenge of finding patterns and meaning in large and complex data.
Currently, new machine learning methods to extract information from images have opened vast new opportunities to data analysis in biology. Traditionally, categories or states of objects in bioimages are determined based on humandefined relevant elements and the recent advances in deep learning have allowed to largely automate this task by providing adaptable and precise methods for image segmentation, object recognition, and classification. However,
what if the human eye is not capable of perceiving potentially meaningful visual features, or when the observed objects are inherently complex? In my talk I will demonstrate through my most recent work on marker-less honeybee tracking and quantifying behavior of C. elegans how the new machine learning methods for image analysis are capable of quantifying patterns defying human vision. The methods I will present allow to distinguish apparently identical bees, quantify worm posture, predict temporal patterns in movement and behavior. The new ways of
extracting signals from visual data, offer an unprecedented opportunity to transform image data into another type
of large and complex data type that is intractable to human perception.
Computational analysis can bring insights into biological questions, while challenging datasets in biology can give
rise to innovative computational solutions. Biology is a source of rich and complex datasets which serve not only
answering important scientific questions but also offer opportunities for creation of innovative solutions for data analysis. Similar to how large sequence datasets gave rise to efficient sequence alignment algorithms that in turn allowed for quantitative sequence analysis at an unprecedented scale, currently, biological images and new machine learning methods for their analysis offer an opportunity for another quantitative leap in biological data analysis.

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