Interplay between telecommunications and face-to-face interactions - a study using mobile phone data

In this study we analyze one year of anonymized telecommunications data for over one million customers from a large European cellphone operator, and we investigate the relationship between people's calls and their physical location. We discover that more than 90% of users who have called each other have also shared the same space (cell tower), even if they live far apart. Moreover, we find that close to 70% of users who call each other frequently (at least once per month on average) have shared the same space at the same time - an instance that we call co-location. Co-locations appear indicative of coordination calls, which occur just before face-to-face meetings. Their number is highly predictable based on the amount of calls between two users and the distance between their home locations - suggesting a new way to quantify the interplay between telecommunications and face-to-face interactions

Virtually connected, practically mobile

This is the post-print version of the Chapter. The official published version can be accessed from the links below - Copyright @ 2006 SpringerThis chapter addresses a central issue in studies of mobile work and mobile technology – what is the work of mobile workers, and how do they use the resources that they have to undertake this work (i.e. the work they have to do in order to do their work)? In contrast to many of the other papers in this collection, the objective of this chapter is to examine individual mobile work, and not teamwork and co-operation other than where it impacts on the work of individuals. We present data from a study of mobile workers, examining a range of mobile workers to produce a rich picture of their work. Our analysis reveals insights into how mobile workers mix their mobility with their work, home and social lives, their use of mobile technology, the problems – technological and otherwise – inherent in being mobile, and the strategies that they use to manage their work, time, other resources and availability. Our findings demonstrate important issues in understanding mobile work, including the maintenance of communities of practice, the role and management of interpersonal awareness and co-ordination, how environmental resources affect activity, the impact of mobility on family/social relationships and the crossover between the mobile workers’ private and working lives, how preplanning is employed prior to travel, and how mobile workers perform activity multitasking, for example through making use of ‘dead time’. Finally, we turn to the implications of this data for the design and deployment of mobile virtual work (MVW) technologies for individuals and a broader organisational context

Analysis of designed and emergent consequences of mobile banking usage by SME’s in Kenya using ethnographic decision tree modeling

Includes bibliographical references.Evaluating the impact of Information and Communications Technologies for Development (ICT4D) has been a challenge both in terms of theoretical and methodological approaches. It has been pointed out in extant literature that ICT4D impact studies are few compared to those that investigate determinants of adoption. Knowledge of this scarcity and the theoretical and methodological limitations led to the conception of this study. This study set out to investigate the decision criteria evaluated by Kenyan micro, small and medium enterprises (MSMEs) when making the initial mobile banking adoption and usage decisions with a view to unearth the designed and emergent consequences. Ethnographic decision tree modelling (EDTM) which is a cognitive research methodology was feasibly employed to obtain the adoption and usage decision criteria from which quantifiable and non-quantifiable consequences were then inferred. Structuration theory was used as a theoretical lens to view the complex context in which mobile banking is embedded and adopted by MSMEs. The analysis of the empirical data obtained from the MSMEs led to the construction and testing of three decision models from which the study’s theory was developed. The derived theory demonstrates the existence of structurational interactions among decision criteria, antecedents of technology adoption, behavioural intention to adopt, and the designed and emergent consequences of actual usage. The study further reveals that contrary to popular belief and argument that adoption of mobile banking technology lowers financial services cost, Kenyan MSMEs adopt the technology not because of its affordability but because of other factors such as perceived usefulness, accessibility, safe custody of daily income, limited organizational capabilities, perceived ease of use, social capital and trust structures. The derived explanatory-predictive theory provides findings that may have significant implications for fiscal and monetary policymakers, development experts and mobile banking technology designers

The TESSA OER Experience: Building sustainable models of production and user implementation

This paper offers a review of the origins, design strategy and implementation plans of the Teacher Education in Sub-Saharan Africa (TESSA) research and development programme. The programme is working to develop new models of teacher education, particularly school based training, including the creation of a programme webspace and an extensive bank of Open Educational Resources. This paper identifies key research findings and literature which informed the TESSA approach and activity design. Drawing on participant experiences in different development activities and data generated in development testing activities, I offer a personal account of the programme to date. The paper concludes by suggesting a pattern of resource making and design that could be adopted by other programmes serving parallel development needs

Group colocation behavior in technological social networks.

We analyze two large datasets from technological networks with location and social data: user location records from an online location-based social networking service, and anonymized telecommunications data from a European cellphone operator, in order to investigate the differences between individual and group behavior with respect to physical location. We discover agreements between the two datasets: firstly, that individuals are more likely to meet with one friend at a place they have not visited before, but tend to meet at familiar locations when with a larger group. We also find that groups of individuals are more likely to meet at places that their other friends have visited, and that the type of a place strongly affects the propensity for groups to meet there. These differences between group and solo mobility has potential technological applications, for example, in venue recommendation in location-based social networks.This is the final manuscript published by PLOS One. It was originally published here: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0105816

Exploring the interplay between Buddhism and career development : a study of highly skilled women workers in Sri Lanka

This article adopts a socio cultural lens to examine the role of Buddhism in highly skilled women workers’ careers in Sri Lanka. While Buddhism enabled women’s career development by giving them strength to cope with difficult situations in work, it also seemed to restrict their agency and constrain their career advancement. Based on our findings, we argue that being perceived as a good Buddhist woman worked as a powerful form of career capital for the respondents in our sample, who used their faith to combat gender disadvantage in their work settings

Conditions of everyday technology use and its Interplay in the lives of older adults with and without dementia

Background: Increased reliance on technology in society incurs a risk that older adults with and without dementia could become excluded from participating in aspects of everyday life in and outside home. This thesis responds to a gap in present understanding about the conditions for Everyday Technology (ET) use (i.e. ticket machines, smartphones) in different international and geographical contexts. By generating new knowledge about the interplay of these conditions on participation, practical information and guidance follow to support both dementia- and age-friendliness as well as general inclusivity in society. Aim: To illuminate the conditions, particularly different country and geographical contexts, of ET use and the interplay of these conditions with participation and inclusion in everyday life both in and outside the home for older adults living with and without mild stage dementia. Methods: Participants with dementia (n =99) and with no known cognitive impairment (n =216) were recruited in the US (sub-study i, n =114), Sweden (sub-study i, n =73, ii, n =69), and England (sub-studies i, iv, n =128, rural sub-study iii, n =10). These four cross-sectional studies used multiple predominantly quantitative methods (i, ii, iv) and a case study approach also involved qualitative data (iii). Structured home-based interviews used the Everyday Technology Use Questionnaire to map respondents’ use of technologies, and the Participation in Activities and Places Outside Home Questionnaire to investigate the amount and pattern of participation outside home. Qualitative data included fieldnotes, observations, annotated maps and more. The findings of the four studies were synthesised using an approach to triangulation. Findings: The triangulation approach yielded three themes: 1) Dementia as a condition of ET use, 2) National, geographical, public and home context as a condition of ET use, 3) Interplay of conditions with participation.1) Dementia was generally not found to be a condition that impacted the challenge of ETs, however groups with dementia typically regarded less ETs to be relevant. There were notable exceptions in both instances. 2) The varying social, infrastructural, and service conditions surrounding national and geographic contexts were seen to shape the constitution and use of ETs outside home. 3) There was a complex interplay between the conditions of ET use and participation outside home. Close and distant human relationships, structural inequalities and transportation options were implicated as stabilising and de-stabilising everyday life. Conclusions: Insights are provided into the interplay between the conditions of ET use and participation in everyday life outside home among older adults with and without dementia. These insights provide opportunities for many different people in societies, communities, neighbourhoods and household to take action. Reducing any friction that people encounter when using ETs in public places and allowing opportunities for manualised participation in occupations outside home could lead to a more inclusive everyday life

Predicting encounter and colocation events

Although an extensive literature has been devoted to mine and model mobility features, forecasting where, when and whom people will encounter/colocate still deserve further research effort s. Forecasting people\u2019s encounter and colocation features is the key point for the success of many applications rang- ing from epidemiology to the design of new networking paradigms and services such as delay tolerant and opportunistic networks. While many algorithms which rely on both mobility and social informa- tion have been proposed, we propose a novel encounter and colocation predictive model which predicts user\u2019s encounter and colocation events and their features by exploiting the spatio-temporal regularity in the history of these events. We adopt a weighted features Bayesian predictor and evaluate its accuracy on two large scales WiFi and cellular datasets. Results show that our approach could improve prediction accuracy with respect to standard na\uefve Bayesian and some of the state of the art predictors

Researching Teenagers’ (Mobile) Interaction Orders – Methodical and Methodological Reflections on a Challenging Field

Mobile phones play an essential role in the everyday lives and social relationships of young people. They are deeply embedded in peer interactions, not only as tools but also as references of interaction. The article is based on an empirical study, which investigates how young people interpret various situations of interaction through, and related to, mobile phones. Providing a useful heuristic to reconstruct the inherent rules, claims and expectations of such situations, Goffman’s concept of the interaction order was modified in regard to youth-specific and mobile media-specific dimensions with the help of a grounded theory approach.The article deals with the methodical strategies that were applied as well as respective methodological questions that arose during the research process. In order to gain insights into the participants’ episodic and semantic knowledge about mobile media related situations, group interviews/discussions, mobile phone diaries and individual interviews were conducted. Each collection strategy is discussed in respect to its preconditions and execution. Additionally, problems regarding the role of the researcher in relation to the participants will be explicated