Multi-Instance Multilabel Learning with Weak-Label for Predicting Protein Function in Electricigens

Abstract EN

Nature often brings several domains together to form multidomain and multifunctional proteins with a vast number of possibilities.

In our previous study, we disclosed that the protein function prediction problem is naturally and inherently Multi-Instance Multilabel (MIML) learning tasks.

Automated protein function prediction is typically implemented under the assumption that the functions of labeled proteins are complete; that is, there are no missing labels.

In contrast, in practice just a subset of the functions of a protein are known, and whether this protein has other functions is unknown.

It is evident that protein function prediction tasks suffer from weak-label problem; thus protein function prediction with incomplete annotation matches well with the MIML with weak-label learning framework.

In this paper, we have applied the state-of-the-art MIML with weak-label learning algorithm MIMLwel for predicting protein functions in two typical real-world electricigens organisms which have been widely used in microbial fuel cells (MFCs) researches.

Our experimental results validate the effectiveness of MIMLwel algorithm in predicting protein functions with incomplete annotation.