Project Description

Applications are invited for a fully-funded three year PhD to commence in October 2019.

The PhD will be based in the Faculty of Business and Law, and will be supervised by Professor Alessio Ishizaka and Dr Giovanni Pino.

The work will look at:
-developing a state-of-the art review of existing data-driven multi-criteria decision methods;
-developing a data-driven multi-criteria decision method based on sentiment analysis;
-validating the method in a marketing context.

Project description
It is well known that optimal decisions are fundamentals for companies but also for individuals. Thus, it is not surprising that multi-criteria decision analysis has undergone a considerable expansion in recent years (Figueira et al. 2016), as a large number of methodologies have been developed and used in multiple contexts (lshizaka and Nemery 2013). However, these methods require a direct input from the decision-maker. If a decision-maker is unavailable, the multi-criteria decision method cannot be used. Furthermore, if the decision applies to a large group of people (e.g. which product to launch on the market), it is unlikely that a single decision-maker can represent all the parties. It is, therefore, important to develop new data-driven techniques based on secondary data, which do not require a direct input of a decision-maker.

To this end, we propose to use sentiment analysis to extract consumer preferences from social networks. Previous research has investigated how multi-criteria ratings allow consumers to assess whether or not a product or a service matches their expectations. However, previous research has rarely investigated how companies may employ such ratings to develop new products or services (Lin 2018). In particular, very little effort has been made so far to assess whether consumer emotions, as expressed through text, images, or videos, on the social media, may provide guidance for multi-criteria decision making related to the development of new products and services (Jannach et al. 2014). This research aims to enhance the field of multiple criteria decision analysis by incorporating sentiment analysis from social media.

The new methodology will be validated with a marketing case study. Secondary data will be collected from social media, which has two advantages: i) individuals can express themselves freely, and ii) data is available in large quantities. Multi-criteria decision-making literature (Bous et al. 2010) shows that consumers consider a variety of attributes in a holistic manner to arrive at a decision compatible with their preferences. Thus, because multiple attributes shape consumer decisions to adopt or resist new products, companies could benefit from a decision method that considers these attributes and their relative importance. Such a method may, in fact, help them design or improve different aspects of their offerings.

Entry Requirements

General admissions criteria
You’ll need a good first degree from an internationally recognised university (minimum second class or equivalent, depending on your chosen course) or a Master’s degree in an appropriate subject. In exceptional cases, we may consider equivalent professional experience and/or qualifications. English language proficiency at a minimum of IELTS band 6.5 with no component score below 6.0.

Specific candidate requirements
Successful candidates should demonstrate a significant interest in social media marketing and Internet technologies.

How to Apply
We’d encourage you to contact Professor Alessio Ishizaka (alessio.ishizaka@port.ac.uk) to discuss your interest before you apply, quoting the project code.

When you are ready to apply, you can use our online application form and select ‘Business and Management’ as the subject area. Make sure you submit a personal statement, proof of your degrees and grades, details of two referees, proof of your English language proficiency and an up-to-date CV. Our ‘How to Apply’ page offers further guidance on the PhD application process.

https://www.port.ac.uk/study/postgraduate/postgraduate-research/how-to-apply

If you want to be considered for this funded PhD opportunity you must quote project code BUSM4510219 when applying.

Funding Notes

Successful applicants will receive a bursary to cover tuition fees at the UK/EU rate for three years and a stipend in line with the RCUK rate (£14,777 for 2018/2019). As part of the bursary the Faculty of Business and Law may fund fieldwork expenses (currently £2,000) over the total period of PhD study. We also offer funding to attend conferences (currently £450), training (currently £450), and a work-based placement (currently a maximum of £3,000 tied up to the period of 12 weeks).

References

Ishizaka, A., and Nemery, P. (2013). Multi-Criteria Decision Analysis. Chichester (United Kingdom), John Wiley & Sons Inc.

Jannach, D., Zanker, M., and Fuchs, M. (2014). “Leveraging multi-criteria customer feedback for satisfaction analysis and improved recommendations.” Information Technology & Tourism 14(2): 119-149.

Lin, K. (2018). “A text mining approach to capture user experience for new product development.” International Journal of Industrial Engineering 25(1): 108-121.

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Prof Dr Alessio Ishizaka
Professor in Decision Analysis
University of Portsmouth
PBS, Operations & Systems Management
Portsmouth PO1 3DE
United Kingdom
Tel: 0044(0)23 9284 4171
Email: Alessio.Ishizaka@port.ac.uk
Webpage:
http://www.port.ac.uk/operations-and-systems-management/staff/alessio-ishizaka.html