Funded PhD Opportunity Intelligent Data Analytics - novelty detection in critical systems

This opportunity is now closed.

Subject: Computer Science and Informatics

Summary

Context and Rationale

Novelty detection refers to the process of identifying unforeseen anomalies that deviate from normal behaviours in data. It is very important in real world applications especially involving big data acquired from safety-critical systems, where novel conditions rarely occur and knowledge about a novelty is extremely limited or completely unavailable, whilst in such systems a very large number of data samples of the normal condition are usually available.

This project will develop novelty detection algorithms that make use of the sufficient available normal data to train/construct a reliable model, which in turn can be used to predict if new data is normal or abnormal.

Research Methodology

Existing computational novelty detection techniques can broadly be classified into 5 general categories, depending mainly on the assumptions made about the nature of the training data [1]: (i) probabilistic; (ii) distance-based; (iii) reconstruction-based; (iv) domain-based; and (v) information theoretic techniques. Their corresponding limitations are: (i) little control over inherent variability when the training set’s size is small; (ii) inability to efficiently cope with high-dimensional data; (iii) sensitive to pre-defined number of parameters; (iv) difficulty in choosing appropriate kernel function to control the size of boundary enclosing normal data; and (v) difficulty in associating a novelty score with a test point.

To solve these limitations of the state-of-the-art techniques [2], this project will focus on interdisciplinary fundamental research, such as employing the level set methods [3] and bioinspired computational [4] theories, to propose novel hybrid approaches for novelty surveillance on time-varying data, e.g. in capital market, healthcare, autonomous vehicles and other areas.

Relevance of the study

Artificial intelligence has spurred an era of data analytics that has the potential to revolutionise the way we work and live and many industries are realising that the data they collect have substantial value that can be leveraged to improve products, processes, services and productivity. The project will access real world datasets provided by industrial partners of the Cognitive Analytics Research Laboratory (CARL) or by research collaborators of the CARL team. CARL has its centre of operations in the Intelligent Systems Research Centre but is an Ulster University wide initiative focused on exploiting our track record of research excellence into neuro-inspired cognitive analytics, machine learning and computational intelligence.

The successful candidate should have an excellent mathematical foundation and will work within CARL and collaborate with multiple partners in academia and industry to thoroughly validate new algorithms and to create impactful technologies that can address problems experienced by industry today.

Essential Criteria

  • Upper Second Class Honours (2:1) Degree or equivalent from a UK institution (or overseas award deemed to be equivalent via UK NARIC)
  • Experience using research methods or other approaches relevant to the subject domain

Desirable Criteria

If the University receives a large number of applicants for the project, the following desirable criteria may be applied to shortlist applicants for interview.

  • First Class Honours (1st) Degree
  • Masters at 70%
  • For VCRS Awards, Masters at 75%
  • Publications - peer-reviewed

Funding

    Vice Chancellors Research Scholarships (VCRS)

    The scholarships will cover tuition fees and a maintenance award of £15,009 per annum for three years (subject to satisfactory academic performance). Applications are invited from UK, European Union and overseas students.

    DFE

    The scholarship will cover tuition fees at the Home rate and a maintenance allowance of £15,009 per annum for three years. EU applicants will only be eligible for the fees component of the studentship (no maintenance award is provided).  For Non EU nationals the candidate must be "settled" in the UK.

Other information

The Doctoral College at Ulster University

Launch of the Doctoral College

Current PhD researchers and an alumnus shared their experiences, career development and the social impact of their work at the launch of the Doctoral College at Ulster University.

Watch Video

Key Dates

Submission Deadline
Monday 18 February 2019
Interview Date
19-20 March 2019

Campus

Magee campus

Magee campus
A key player in the economy of the north west

Contact Supervisor

Dr Xuemei Ding

Other Supervisors

Apply online

Visit https://www.ulster.ac.uk/applyonline and quote reference number #344922 when applying for this PhD opportunity