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Mathematical modelling for the digital society

P. Grindrod CBE
2010 IMA Journal of Applied Mathematics  
Although now going through an early phase of boiling up, prior to scholarly distillation, we discuss how data rich activities and applications may benefit from a wide range of continuous and discrete models  ...  There is a challenge for mathematics, a strong "pull" from new and emerging commercial and public activities; and a need to train and inspire a generation of quantitative scientists who will seek careers  ...  In state transition models with a finite number of states, this can reduce to a linear set of ODEs. If we also discretize time, this reduces further to a discrete Markov model.  ... 
doi:10.1093/imamat/hxq050 fatcat:agjkov6ipjewbjje3u2vambmei

Semantic assessment of shopping behavior using trajectories, shopping related actions, and context information

M.C. Popa, L.J.M. Rothkrantz, C. Shan, T. Gritti, P. Wiggers
2013 Pattern Recognition Letters  
Fax: +31(0)15 2787141. we analyze the shopping sequences using a Hidden Markov Model (HMM).  ...  reasoning model in 95% of the cases.  ...  Hidden Markov Models (HMMs)) which is used in combination with 371 trajectory and optical flow features.  ... 
doi:10.1016/j.patrec.2012.04.015 fatcat:n5yurz2qjvhdjlh35jcnosbz54

Social Simulation Within Consumer Goods Industry: The Way Forward

Abhijit Sengupta
2012 ECMS 2012 Proceedings edited by: K. G. Troitzsch, M. Moehring, U. Lotzmann  
These areas are: providing complementary predictive capability to standard market mix models, modelling disruptive changes in the market, increased partnership with the automated personalized algorithms  ...  But in spite of high potential impact, adoption and applicability within businesses is relatively low, especially so in the consumer goods industry.  ...  MMM typically uses aggregated sales data to build these models, and in general, have found wide acceptability as a marketing tool in many companies.  ... 
doi:10.7148/2012-0731-0737 dblp:conf/ecms/Sengupta12 fatcat:rx422dhmbzbunffl72qtj77gdu

Introduction – The Contributions of Big Data
Introduction – Les apports des Big Data

Philippe Tassi
2019 Economics and Statistics  
This Special Issue features a series of articles that examine its uses and implications, as well as the challenges faced by statistical production in general, and especially that of official statistics  ...  They are also a driver for development in computer science in the broadest sense, and in applied mathematics.  ...  The individualization of the audience is based on hidden Markov models that can be represented schematically as shown in the Diagram below (Rabiner, 1989; Rabiner et al., 1993) .  ... 
doi:10.24187/ecostat.2018.505d.1963 fatcat:42rehacy6ffb7hc6k2l2q4u4yy

Extracting Complements and Substitutes from Sales Data: A Network Perspective [article]

Yu Tian, Sebastian Lautz, Alisdiar O. G. Wallis, Renaud Lambiotte
2021 arXiv   pre-print
In this article, we take a network perspective to help automatically identify complements and substitutes from sales transaction data.  ...  The resulting unipartite networks between products are then analysed with community detection methods, in order to find groups of similar products for the different types of relationships.  ...  YT is supported by the EPSRC Centre for Doctoral Training in Industrially Focused Mathematical Modelling (EP/L015803/1) in collaboration with Tesco PLC.  ... 
arXiv:2103.02042v2 fatcat:qkiqweydbzhdbopkx56bfhghrm

Vol. 2, No. 3, in July 2009

Editor IBR
2009 International Business Research  
. , A. (1999) Although the economic landscape of regional integration has important roles on efficient resource allocation and regional economic development, compared to the states of the US, Chinese provinces  ...  In the period of pre-reformed economy, China has long been regarded as truly a central planned economy in the same sense as the former Soviet Union.  ...  A supermarket offering 15 different flavors of jam will offer customers more flexibility in terms of taste than a supermarket offering a limited selection of 6 flavors.  ... 
doi:10.5539/ibr.v2n3p0 fatcat:j4nzhvjezvfvljno24nxa57ndu

Explanation of exceptional values in multi-dimensional business databases

E.A.M. Caron, H.A.M. Daniels
2008 European Journal of Operational Research  
Finally in Case 4, sensitivity analysis is discussed in a case study on the analysis of multi-dimensional supermarket sales data.  ...  Normal behaviour is often not precisely defined. In general, one makes use of the behaviour which is observed most frequently in practice, a kind of average behaviour.  ...  OLAP databases In this appendix, we present the matrix representation of a system of additive drilldown equations in an OLAP database and a number of its properties, as an alternative representation for  ... 
doi:10.1016/j.ejor.2007.04.039 fatcat:jipahcrk4zcyxgiqov2w57473e

The Vessel Schedule Recovery Problem (VSRP) – A MIP model for handling disruptions in liner shipping

Berit D. Brouer, Jakob Dirksen, David Pisinger, Christian E.M. Plum, Bo Vaaben
2013 European Journal of Operational Research  
is an indispensable need in today's business world.To satisfy the customer,on-time delivery is crucial for the business to continue in spite of continuous change.This study aims to propose a model to  ...  -Testing the validity of the MIP approach for locating carsharing stations in one-way systems Previous research has proposed using a mixed integer programming (MIP) model for choosing the location of stations  ...  -Optimal Dynamic Tax Evasion: A Portfolio Approach Francesco Menoncin, Economics, Brescia University, Via S. Faustino, 74/B, 25122, Brescia, Italy,, Rosella Levaggi  ... 
doi:10.1016/j.ejor.2012.08.016 fatcat:c27kagfnxnhjfbil2rydhjhomm

Detecting Intruders and Packet Modifiers in Wireless Sensor Networks

S. Navaneethan
2013 IOSR Journal of Computer Engineering  
any number of packets simultaneously.  ...  The receiver verifies the packets and then decrypts the message using sender's public key.  ...  Finally, the authors would like to thank everybody who were important and helped them out in every process to the successful realization of the thesis.  ... 
doi:10.9790/0661-0850103 fatcat:ju24fypkjvgdzcg3ajc6hkto4u

Design and Implementation Based On Amba4.0 Of Apb Bridge

G Madhuri
2012 IOSR Journal of Electronics and Communication Engineering  
Based on AMBA 4.0 bus, we designed an Intellectual Property (IP) core of Advanced Peripheral Bus (APB) Bridge, which translates the AXI4.0-lite transactions into APB 4.0 transactions.  ...  Jeevan Reddy HOD, ECE Department and other Professors for extending their help & support in giving technical ideas about the paper and motivating to complete the work effectively & successfully. [1]  ...  References Acknowledgements We thank so much to, the Department of Electrical Engineering, University of Indonesia, the Directorate General of Higher Education of the Republic Indonesia, and the Telkom  ... 
doi:10.9790/2834-0420106 fatcat:gkfs4uua25hcvi6tybpx2imgou

A model based approach to system of systems risk management

Andrew Kinder, Michael Henshaw, Carys Siemieniuch
2015 2015 10th System of Systems Engineering Conference (SoSE)  
the use of M&S in order to support SoSE activities.  ...  SoS Engineering (SoSE) is a sub-discipline of SE; Risk Management and Modelling and Simulation (M&S) are key areas within SoSE, both of which also lie within the traditional SE domain.  ...  Robert Garrett, Chief Engineer for Modelling and Simulation at the Missile Defence Agency, for his encouragement and invaluable input to this paper.  ... 
doi:10.1109/sysose.2015.7151940 dblp:conf/sysose/KinderHS15 fatcat:slnnxd3ez5ddffqwmjfzd7avya

Deliverable 2.1 Report on baseline and description of identified trends, drivers and barriers of EU food system and RI

Beatrix Wepner, Helge Svare, Jacqueline Broerse, Susanne Giesecke, Manuela Kienegger, Doris Schartinger, Petra Wagner, Thom Achterbosch, Beatrice Biondi, Chrissie Brierley, Just Dengerink, Marina Pino Cebrián (+8 others)
2018 Zenodo  
These instruments are engaging in the foreseen processes of vision development, system understanding, road-mapping and action planning.  ...  The deliverable is intended as the basis for a common understanding of visions, trends and drivers and serves the emerging instruments of the FOOD 2030 platform, namely the FIT4FOOD2030 EU Think Tank,  ...  These relate to priorities and incentive schemes, but also simply to the lack of adequate measures of and for responsibility in food research and innovation. EXAMPLE REFERENCES  ... 
doi:10.5281/zenodo.4596689 fatcat:dvbeijv3qjeaxhdrcvxnohvxny


2022 2022 International Conference on Decision Aid Sciences and Applications (DASA)  
A maximum of 92.90% classification accuracy is obtained using the features of IMF-4 with 10-fold cross-validation. The results conclude that the proposed method can detect AD patients efficiently.  ...  The selected features from EEG recordings of 23 subjects (AD-12 and NC-11) are used to train and test the Leastsquare support vector machine (LS-SVM) classifier with three different kernel functions.  ...  of sales and loss of potential customers.  ... 
doi:10.1109/dasa54658.2022.9765271 fatcat:ttqppf4j3navnaxe653mrzmezi

Patient-generated evidence in Epidermolysis Bullosa (EB): Development of a questionnaire to assess the Quality of Life [chapter]

Laura Benedan, May El Hachem, Carlotta Galeone, Paolo Mariani, Cinzia Pilo, Gianluca Tadini
2021 Proceedings e report  
Starting from this initial set of areas and through the repetition of Delphi (up to three rounds), a gradual refinement of the statements was carried out to define a list of items to be included in an  ...  A multidisciplinary panel (including patients, caregivers, and clinicians) actively participated in round tables to discuss the main areas of interest.  ...  Alessandra Petrucci is Professor of Social Statistics and she holds a PhD in Applied Statistics.  ... 
doi:10.36253/978-88-5518-461-8.38 fatcat:2yp72egbhrcvxng7avqoskbpse

Vol. 1, No. 2, August 2009

Editor IJEF
2009 International Journal of Economics and Finance  
The results of this study are in line with earlier findings and claim that the TOM and intramonth anomalies are driven by the clustered release of major U.S. macroeconomic news announcements.  ...  This study uses Finnish data to first identify significant TOM and intramonth effects and second to investigate whether these anomalies arise because of the clustered major U.S. macroeconomic news announcements  ...  The estimated model is then used to make the out-of-sample forecast, one day in advance.  ... 
doi:10.5539/ijef.v1n2p0 fatcat:tjz5ifbgtrfp7bdlk7yygm3bae
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