Actor centrality correlates to project based coordination
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Actor Centrality Correlates to Project based Coordination. Liaquat Hossain, Ph.D. Knowledge Management Research Lab Email: [email protected] Agenda. Introduction to Social Networks Visualising & Interpreting Social Networks Social Network Data Collection & Analysis

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Actor Centrality Correlates to Project based Coordination

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Actor centrality correlates to project based coordination

Actor Centrality Correlates to Project based Coordination

Liaquat Hossain, Ph.D.

Knowledge Management Research Lab Email: [email protected]


Agenda

Agenda

  • Introduction to Social Networks

  • Visualising & Interpreting Social Networks

  • Social Network Data Collection & Analysis

  • Enron Email Communication Corpus

    • Visualisation of Enron Communication Network

  • Research Framework

  • Methods

  • Results

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Actor centrality correlates to project based coordination

Introduction to Social Networks

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Social network analysis

Social Network Analysis

  • Social Network – A set of actors and relations that hold the actors together

  • SNA – “The disciplined inquiry into the patterning of relations among social actors, as well as the patterning of relationships among actors at different levels of analysis (such as persons and groups)”(Breiger, 2004)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Growth of social networks

Growth of Social Networks

  • Social Networks research has been growing exponentially over the past decades

Source: Otte & Rousseau (2002)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Distribution of social network research

Distribution of Social Network Research

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


At the beginning of the hype curve

At the Beginning of the Hype Curve

Source: IBM (2005)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Actor centrality correlates to project based coordination

Visualising & Interpreting Social Networks

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Collaboration network

Collaboration Network

Source: Otte & Rousseau (2002)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Sexual relations colorado spring data by gender morris moody et al

Sexual relations Colorado Spring dataBy Gender (Morris, Moody et al.)

Male

Female

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Actor centrality correlates to project based coordination

Social Network Data Collection & Analysis

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Whole or sociocentric approach

Whole or Sociocentric Approach

  • Focus is on measuring structural patterns of interactions and how the patterns explain outcomes (eg. concentration of power or resources within groups)

  • Actors are usually known or determined ie. network boundaries are a priori defined

  • A roster of names is usually needed to formulate the adjancency matrix

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


An adjacency matrix

An Adjacency Matrix

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Sociocentric network approach

Sociocentric Network Approach

  • What if the population of interest is over 100 or 1,000?

  • For

    • 30 actors there would be 435 (undirected) or 870 (directed) interactions

    • 100 actors there would be 4950 (undirected) or 9900 (directed) interactions

  • Scrutinising through long lists of names and identifying multiplex ties with actors on the list causes fatigue and recall problems (Bernard et al, 1982)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Egocentric network approach cont

Ego

Egocentric Network Approach (..cont)

  • “Ego” is the actor we are interested in. “Alters” are the people referred to by the ego as having a tie with

  • Coleman, Katz et al’s (1957) medical innovation diffusion study adopted egocentric approach from doctors

    • To whom did you turn to for advice and information?

    • With whom did you most often discuss cases in an ordinary week?

    • Who were the friends between your colleagues whom you saw often socially?

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Egocentric network approach cont1

Egocentric Network Approach (..cont)

  • Socio-demographic attribute data: Sex, Marital Status, Education

  • Occupational attribute data: Age, professional associations, social associations, journals read

  • Relational data: Density, Centrality and Centralisation

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Actor centrality correlates to project based coordination

Enron Email Communication Corpus

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Introduction to enron dataset

Introduction to Enron Dataset

  • We used the Enron Email Dataset to study the correlation between centrality and coordinative ability.

  • The Enron Dataset is:

    • A collection of over 250,000 emails…

    • of about 150 employees…

    • from a real organisation…

    • over a period of 3.5 years

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Enron email corpus versions

Enron Email Corpus versions

  • Various instances of the email corpus:

    • Federal Energy Regulatory Commission (619,449 emails, 158 employees)

    • Stanford Research Institute then rectified data integrity problems

    • Cohen (CMU) made the dataset public (517,431 emails, 151 addresses)

    • Corrada-Emmanuel (250,484 emails, 149 users)

    • Shetty and Adibi (252,759 emails, 151 users)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Actor centrality correlates to project based coordination

Visualisation of Enron Communication Network

1997-2002

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Preliminary results of enron communication network 1997 98

Preliminary Results of Enron Communication Network (1997-98)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Preliminary results of enron communication network 1999

Preliminary Results of Enron Communication Network (1999)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Preliminary results of enron communication network 2000

Preliminary Results of Enron Communication Network (2000)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Preliminary results of enron communication network 2001

Preliminary Results of Enron Communication Network (2001)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Preliminary results of enron communication network 2002

Preliminary Results of Enron Communication Network (2002)

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Research framework

Research Framework

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Methodology summary

Methodology summary

  • The methodology of the study involves four research phases:

    • extraction and cataloguing of coordination key phrases

    • calculation of coordination score bounded by project scope

    • construction of social network matrices using the centrality measures

    • hypothesis testing of the association between network centrality and coordination

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Text mining for coordination

Text Mining for Coordination

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Key phrase extraction

Key Phrase Extraction

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Calculating coordination weights

Calculating Coordination Weights

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Text mining and coordination score

Text Mining and Coordination Score

A text-mining application was created to deploy the model to calculate coordination score from the Enron dataset.

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Social network matrices and centrality

Measurement:

Degree

Closeness

Betweenness

Directional Analysis:

In-Centrality

Out-Centrality

Social Network Matrices and Centrality

UCINET 6 Output of Closeness

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Project based coordination results

Project Based Coordination Results

  • Coordination and centrality across three projects

The coordination and centrality scores are ranked.

6 of the 8 cases ranked equally.

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Organisational position and coordination

Organisational Position and Coordination

Employee title and role, along with coordination and centrality scores.

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Mapping average coordination against position in organisational hierarchy

Mapping average coordination against position in organisational hierarchy

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


Results summary

Results Summary

Liaquat Hossain, Knowledge Management Research Lad, The University of Sydney, Australia


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