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Dive into the research topics where Helen Celia is active.

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Featured researches published by Helen Celia.


winter simulation conference | 2007

Using intelligent agents to understand management practices and retail productivity

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Christopher Clegg

Intelligent agents offer a new and exciting way of understanding the world of work. In this paper we apply agent- based modeling and simulation to investigate a set of problems in a retail context. Specifically, we are working to understand the relationship between human resource management practices and retail productivity. Despite the fact we are working within a relatively novel and complex domain, it is clear that intelligent agents could offer potential for fostering sustainable organizational capabilities in the future. The project is still at an early stage. So far we have conducted a case study in a UK department store to collect data and capture impressions about operations and actors within departments. Furthermore, based on our case study we have built and tested our first version of a retail branch simulator which we will present in this paper.


Journal of Simulation | 2011

Towards the Development of a Simulator for Investigating the Impact of People Management Practices on Retail Performance

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Chris W. Clegg

Models to understand the impact of management practices on retail performance are often simplistic and assume low levels of noise and linearity. Of course, in real life, retail operations are dynamic, nonlinear and complex. To overcome these limitations, we investigate discrete-event and agent-based modelling and simulation approaches. The joint application of both approaches allows us to develop simulation models that are heterogeneous and more life-like, though poses a new research question: When developing such simulation models one still has to abstract from the real world, however, ideally in such a way that the ‘essence’ of the system is still captured. The question is how much detail is needed to capture this essence, as simulation models can be developed at different levels of abstraction. In the literature the appropriate level of abstraction for a particular case study is often more of an art than a science. In this paper, we aim to study this question more systematically by using a retail branch simulation model to investigate which level of model accuracy obtains meaningful results for practitioners. Our results show the effects of adding different levels of detail and we conclude that this type of study is very valuable to gain insight into what is really important in a model.


Simulation | 2010

Simulating Customer Experience and Word-Of-Mouth in Retail - A Case Study

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Chris W. Clegg

Agents offer a new and exciting way of understanding the world of work. In this paper we describe the development of agent-based simulation models, designed to help to understand the relationship between people management practices and retail performance. We report on the current development of our simulation models which includes new features concerning the evolution of customers over time. To test the features we have conducted a series of experiments dealing with customer pool sizes, standard and noise reduction modes, and the spread of customers’ word of mouth. To validate and evaluate our model, we introduce new performance measure specific to retail operations. We show that by varying different parameters in our model we can simulate a range of customer experiences leading to significant differences in performance measures. Ultimately, we are interested in better understanding the impact of changes in staff behavior due to changes in store management practices. Our multi-disciplinary research team draws upon expertise from work psychologists and computer scientists. Despite the fact we are working within a relatively novel and complex domain, it is clear that intelligent agents offer potential for fostering sustainable organizational capabilities in the future.


arXiv: Artificial Intelligence | 2008

Multi-Agent Simulation and Management Practices

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Christopher Clegg

Intelligent agents offer a new and exciting way of understanding the world of work. Agent-Based Simulation (ABS), one way of using intelligent agents, carries great potential for progressing our understanding of management practices and how they link to retail performance. We have developed simulation models based on research by a multi-disciplinary team of economists, work psychologists and computer scientists. We will discuss our experiences of implementing these concepts working with a well-known retail department store. There is no doubt that management practices are linked to the performance of an organisation (Reynolds et al., 2005; Wall & Wood, 2005). Best practices have been developed, but when it comes down to the actual application of these guidelines considerable ambiguity remains regarding their effectiveness within particular contexts (Siebers et al., forthcoming a). Most Operational Research (OR) methods can only be used as analysis tools once management practices have been implemented. Often they are not very useful for giving answers to speculative ‘what-if’ questions, particularly when one is interested in the development of the system over time rather than just the state of the system at a certain point in time. Simulation can be used to analyse the operation of dynamic and stochastic systems. ABS is particularly useful when complex interactions between system entities exist, such as autonomous decision making or negotiation. In an ABS model the researcher explicitly describes the decision process of simulated actors at the micro level. Structures emerge at the macro level as a result of the actions of the agents and their interactions with other agents and the environment. We will show how ABS experiments can deal with testing and optimising management practices such as training, empowerment or teamwork. Hence, questions such as “will staff setting their own break times improve performance?” can be investigated.


arXiv: Neural and Evolutionary Computing | 2007

Understanding Retail Productivity by Simulating Management Practices

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Christopher Clegg

Intelligent agents offer a new and exciting way of understanding the world of work. In this paper we apply agent-based modeling and simulation to investigate a set of problems in a retail context. Specifically, we are working to understand the relationship between human resource management practices and retail productivity. Despite the fact we are working within a relatively novel and complex domain, it is clear that intelligent agents could offer potential for fostering sustainable organizational capabilities in the future. Our research so far has led us to conduct case study work with a top ten UK retailer, collecting data in four departments in two stores. Based on our case study data we have built and tested a first version of a department store simulator. In this paper we will report on the current development of our simulator which includes new features concerning more realistic data on the pattern of footfall during the day and the week, a more differentiated view of customers, and the evolution of customers over time. This allows us to investigate more complex scenarios and to analyze the impact of various management practices.


Archive | 2007

Using Intelligent Agents to Understand Management Practices and Retail

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Chris W. Clegg

Intelligent agents offer a new and exciting way of understanding the world of work. In this paper we apply agentbased modeling and simulation to investigate a set of problems in a retail context. Specifically, we are working to understand the relationship between human resource management practices and retail productivity. Despite the fact we are working within a relatively novel and complex domain, it is clear that intelligent agents could offer potential for fostering sustainable organizational capabilities in the future. The project is still at an early stage. So far we have conducted a case study in a UK department store to collect data and capture impressions about operations and actors within departments. Furthermore, based on our case study we have built and tested our first version of a retail branch simulator which we will present in this paper.


arXiv: Neural and Evolutionary Computing | 2007

Using Intelligent Agents to Understand Organisational Behaviour

Helen Celia; Christopher Clegg; Mark Robinson; Peer-Olaf Siebers; Uwe Aickelin; Christine A. Sprigg

This paper introduces two ongoing research projects which seek to apply computer modelling techniques in order to simulate human behaviour within organisations. Previous research in other disciplines has suggested that complex social behaviours are governed by relatively simple rules which, when identified, can be used to accurately model such processes using computer technology. The broad objective of our research is to develop a similar capability within organisational psychology.


summer computer simulation conference | 2007

A multi-agent simulation of retail management practices

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Christopher Clegg


Archive | 2008

Enhancing Productivity: The Role of Management Practices

Alfonsina Iona; Peer-Olaf Siebers; Uwe Aickelin; Giuliana Battisti; Helen Celia; Christopher Clegg; Xiaolan Fu; A Peixoto


arXiv: Neural and Evolutionary Computing | 2008

An agent-based simulation of in-store customer experiences

Peer-Olaf Siebers; Uwe Aickelin; Helen Celia; Christopher Clegg

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Uwe Aickelin

University of Nottingham

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A Peixoto

University of Nottingham

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