Umeå University, Mathematics and Mathematical Statistics

Fellowship ID: 2216-POSTDOC2 [#24296]
Fellowship Title: Postdoctoral fellowship (2 years) within interpretable machine learning
Fellowship Type: Postdoctoral
Fellowship Location: Umea, VasterbottensLan 901 87, Sweden [map] sort by distance
Subject Area: Machine learning
Application Deadline: 2024/04/01 11:59PMhelp popup (posted 2024/02/08, listed until 2024/04/01)
Fellowship Description:    

*** the listing date or deadline for this fellowship has passed. ***

The Department of Mathematics and Mathematical Statistics is offering a postdoctoral scholarship within the project “Generative mixture of linear models by DNN co-supervision”. The scholarship is full-time for two years, with access on 1 June 2024 or by agreement.

Project description: Artificial intelligence (AI) has become ubiquitous in our daily lives even though we are often not aware of the technology being in action. Machine learning (ML) is an area at the technical core of AI. With the enormous success of deep neural networks (DNN), the research focus of ML has shifted from pursuing high accuracy to a few other qualities of an ML system. One of the highly valued traits of an ML system is interpretability. For some critical tasks, a black-box ML classifier is rejected even if it performs the best on a test dataset. The caution against black-box ML is well grounded since a test dataset usually cannot fully represent the phenomenon under study. For proof of concept, we have developed a prototype approach to approximate the prediction of a DNN model by a piecewise linear function (or linear decision boundaries) called Mixture of Linear Models (MLM).

This project aims to further develop MLM by incorporating more sophisticated region-specific models and enhancing the training of the modules in MLM. These improvements will expand the potential applications of the method and increase prediction accuracy. This project will contribute novel algorithms for interpretable ML and create a platform for a formal study of the relationship between interpretability and prediction accuracy.

The successful candidate will be part of the research group on statistical learning and inference for spatiotemporal data at the Department of Mathematics and Mathematical Statistics at Umeå University, which closely cooperates with the Department of Statistics at Penn State University, USA. You will be given the excellent opportunity to work within the research environment conducting machine learning and AI research at Umeå University to develop your scientific qualifications.

The scholarship holder will be based at the Department of Mathematics and Mathematical Statistics in Umeå and financed by the Kempe Foundations.

About Umeå: Umeå is a young city located on the shores of Umeå river and is surrounded by forests and lakes and lies close to the sea. The city itself offers a rich cultural life, with many pubs, cafés, restaurants, concerts and festivals. Everything is close by, be it the university, the gym, the city center, a concert hall, or a cross-country skiing track.

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Contact: Jun Yu
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Department of Mathematics and Mathematical Statistics
Umeå University
901 87 Umeå
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