---
title: "Determining Expert Research Areas with Multi-Instance Learning of Hierarchical Multi-Label Classification Model"
authors:
  - "Tao Wu"
  - "Qifan Wang"
  - "Zhiwei Zhang"
  - "Luo Si"
doi: ""
url: "https://ijcai.org/proceedings/2015/326"
pdf: "https://ijcai.org/proceedings/2015/0326.pdf"
venue: "Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence"
year: 2015
pages: "2305-2311"
track: "Main Track"
keywords:
---

# Determining Expert Research Areas with Multi-Instance Learning of Hierarchical Multi-Label Classification Model

Tao Wu, Qifan Wang, Zhiwei Zhang, Luo Si

*Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence*, pages 2305-2311.

## Abstract

Automatically identifying the research areas of academic/industry researchers is an important task for building expertise organizations or search systems. In general, this task can be viewed as text classification that generates a set of research areas given the expertise of a researcher like documents of publications. However, this task is challenging because the evidence of a research area may only exist in a few documents instead of all documents. Moreover, the research areas are often organized in a hierarchy, which limits the effectiveness of existing text categorization methods. This paper proposes a novel approach, Multi-instance Learning of Hierarchical Multi-label Classification Model (MIHML) for the task, which effectively identifies multiple research areas in a hierarchy from individual documents within the profile of a researcher. An Expectation-Maximization (EM) optimization algorithm is designed to learn the model parameters. Extensive experiments have been conducted to demonstrate the superior performance of proposed research with a real world application.