Mihai Calciu

• Doctor of Philosophy
• University of Lille

• Objectif L’objectif de cette étude est de présenter l’approche méthodologique computationnelle ancrée qui repose sur une démarche d’interprétation par les chercheurs des thèmes détectés par les algorithmes d’intelligence artificielle (IA) puis de l’appliquer au cas #Movember. • Méthodologie Une classification non supervisée par LDA et une analyse...

The Covid-19 pandemic offers a spectacular case of disaster management. In this literature, the paradigm of participation is fundamental: the mitigation of the impact of the disaster, the quality of the preparation and the resilience of the society, which facilitate the reconstruction, depend on the participation of the populations. Being able to o...

La pandémie de Covid-19 qui frappe la planète propose un cas d’étude spectaculaire de management du désastre. Dans cette littérature, le paradigme participatif est fondamental : l’atténuation de l’impact de la catastrophe, la qualité de la préparation et la résilience de la société, facilitent la reconstruction, mais dépendent de la participation d...

In this paper, we present a mainly French coronavirus Twitter dataset that we have been continuously collecting since confinement restrictions have been enacted in France (in March 17, 2020). We offer our datasets and sentiment analysis annotations, that have been obtained using high performance computing (HPC) capabilities of our university's data...

This chapter contributes to the still very reduced marketing literature that deals with big consumer behavior data using cloud analytics by summarizing some of the main extant academic researches and by introducing new applications, datasets, and technologies in order to complete the picture. Both internal “purchase history” and external Web-based...

In this paper we suggest that models are fast track vehicles for acquiring knowledge and should be central to developing a comprehensive teaching scheme. It uses models, largely accepted marketing metaphors. It also integrates model based decision support systems in order to reinforce learning and improve practice. A progressive, modular and object...

This research introduces a Transtheoretical model of change for customer financial behaviour that focuses on approach-avoidance money management strategies. Approach strategies include processes for increasing savings while avoidance strategies involve processes for reducing spending. The mediating effects of decisional balance on the relationships...

We consider a business simulation as document based when all the data concerning the simulation are persistently stored into documents (files) and the data exchange between participants relies exclusively on documents. The paper introduces a development framework for document based business simulations. We argue that business simulations are fast t...

This article presents a panorama of Customer Lifetime Value (CLV) modelling and focuses on the two main categories of CLV calculation methods: the deterministic approach and the stochastic approach. The first adopts simplified calculations that ignore heterogeneity in customers’ retention and/or churn rates within a cohort. It produces formulae tha...

This paper focuses on optimisation procedures for customer acquisition and retention costs. It compares a recent contribution by Pfeifer (2005) to the original Blattberg and Deighton (1996) model and gives generic formulations for both optimisation procedures. It extends the model and the optimisation procedures from the rather narrow ‘lost for goo...

We introduce a new stylised simulation model that combines transactional and relationship marketing aspects. A multi-branded offer from multiple companies that generates attraction and retention potential is confronted to a multisegmented demand with specific dual response behaviour. Dynamic market transitions model loyal and versatile customer flo...

Customer lifetime value is a key concept in relationship marketing. This paper develops, synthesises and organises formulae for computing this lifetime value in a progressive manner and continues a research direction started some years ago. Calculations are organised using a double taxonomy: customer relationship behaviour models (retention and mig...

Unlike other service firms which, by definition, lack patent protection for their products, banks have historically had a certain monopoly for the services they offered. This monopoly vanishes under the pressure of deregulation and technology and causes fundamental change in the way retail banks territorially compete.

Location of facilities is probably the most important decision to be taken by retailers, bankers, hotel chains and many other businesses. Location determines sales, market share and profits (Kimes and Fitzimmons, 1990). Location decisions are most important because they represent large fixed investments. Finally, location can play a crucial role in...

Two hundred patients with various chronic pulmonary diseases were treated with the bacterial lysate Broncho-Vaxom (BV) in addition to conventional treatment or with conventional treatment alone over a period of two years. The efficacy of BV was assessed on the basis of clinical symptoms (dyspnoea, cough, expectoration, fever and bronchial râle), pu...