gatekeepers boundary spanners and social network analysis

... investigate social network analysis Joshua Tyler and his colleagues used the Newman Clustering algorithm to discover social structures from email messages They found that the automatically discovered social ... al., “The Social Network and Relationship Finder: Social Sorting for Email Triage,” Proc Conf E-mail and Anti-Spam, 2005; http://www.ceas.cc/2005/papers/149.pdf L Johansen, M Rowell, and P McDaniel, ... j to k), and s jk(i) is the number of all-pairs shortest paths going through j and k via i This metric has been used in social network analysis PageRank is a popular method in link -analysis research...

Ngày tải lên: 22/03/2014, 22:26

... Facebook and the Enron Email Corpus are examples of social networks Social network analysis The process of analyzing a social network and identifying key actors, groups, vulnerabilities, and redundancies ... maintained, and evolve, and the role of variables such as social networking tools, media, and stress in affecting the emergence, utilization, management, and change in social networks Social network ... Definitions of Key Social Network Terms The workshop planning committee developed the following definitions of key terms used in the study of social networks and social network analysis Social network The...

Ngày tải lên: 30/03/2014, 12:20

... ‘complete network or network census’ studies) allow for the determination of both global and local social properties, and are hence the ‘gold standard’ of network analysis Most organizational and ... Sampling and estimation in large social networks Social Networks, (1), 91–101 Frank, O (2005) Network sampling and model fitting In: P J Carrington, J Scott & S Wasserman, eds Models and Methods in Social ... in networks Social Networks, 17, 57–63 39 Handcock, M S (2003) Statistical models for social networks: Inference and degeneracy In: R Breiger, K M Carley & P Pattison, eds Dynamic Social Network...

Ngày tải lên: 11/04/2014, 10:03

... Chapter Introduction to Social Network Social network Social network is a social structure made of nodes and ties, where nodes might be people, groups, organizations… and ties might be relations, ... make scale free network highly stable and robust [36] Social network analysis – SNA SNA [15] deals with mapping and measuring the nodes and relations between the nodes in a social network As stated ... some algorithms from social network analysis, which use the link structure to determine the importance of individuals in the network Ranking in social networks In social network analysis, one fundamental...

Ngày tải lên: 20/08/2014, 09:36

Ngày tải lên: 13/11/2014, 15:55

... Đặc biệt phần mềm online 41 THAM KHẢO  [1]< Dr Giorgos)> Social Network Analysis (SNA) [2] < A/ Prof Do Phuc> Mining, Indexing and Searching Graph Databases [4] Bài giảng CSDL Đồ ... trung bình tổng chiều dài tất Shortest paths từ node đến node lại (Cloneness Centrality – Social Network Analysis - Dr Giogos Cheliotis) Trong đó: chiều dài từ đỉnh v tới đỉnh t Tính Clustering ... trung bình tổng chiều dài tất Shortest paths từ node đến node lại (Cloneness Centrality – Social Network Analysis - Dr Giogos Cheliotis) Trong đó: chiều dài từ đỉnh v tới đỉnh t Sum dG(1,t) = dG(1,2)...

Ngày tải lên: 10/04/2015, 14:35

... AND RESULTS DISCUSSIONS AND CONCLUSIONS Changes in Social Networks after Restructuring Network Variables, Work Satisfaction and Satisfaction with Changes Minor Hypotheses: Network Variables and ... outcomes — instrumental networks and expressive networks (e.g., Brass, 1992; Ibarra and Andrews, 1993) 21 Social network theory distinguishes between the instrumental network relations that arise ... Types of networks Design Cross-sectional Brass and Burkhardt (1993) Advice communication, support, influence, and friendship networks Communication network Ibarra and Andrews (1993) Advice and friendship...

Ngày tải lên: 16/09/2015, 17:11

... based on social network analysis approach to develop recommender systems in the academic domain We did the literature review related to recommender systems, social network analysis: methods and applications ... the basic random walk model by calculating the product similarities through a weighted Recommender Systems in Academic Domain using Social Network Analysis Approach 61 bipartite network and allowing ... knowledge and social networks Their experiments in the movie domain shown promising results compared to traditional methods [7] Recently, it has emerged some researches applied social network analysis...

Ngày tải lên: 09/10/2015, 08:37

... of brands, referral sources and information-seeking strategies? – How social networks influence behavior and outcomes in an industrial marketing context • Typical Methods – – Interviews and surveys ... (strands): content, direction and and strength – Ties: Weak/Strong based on frequency of social contact, importance of relation – Multiplexity the number of relations in a tie – Does not assume social ... of social relations.” (Bansal and Voyer 2000, Gilly et al 1991, Houston et al 2001, Ward and Reingen 1996) • Typical Research Questions: – What is the relationship between social structure and...

Ngày tải lên: 24/10/2013, 20:15

Ngày tải lên: 23/02/2014, 21:20

Ngày tải lên: 09/03/2014, 22:20

... Berkman and Kawachi argued that social networks operate at the behavioral level through social support and social influence, which affects social engagement and attachment and access to resources and ... work-based social network group employed women with paid work, and, home-based social network group - women with no paid work, housewives or unemployed women Measures of social support and social network ... concepts of social networks and social supports are intrinsically interconnected and overlap [12] However, social networks are the structure through which social support is provided [13] Social support...

Ngày tải lên: 20/06/2014, 15:20

... per farm, respectively) Other land uses such as garden and house land is about 0.2 per family, and ranged between 0.18 and 0.21 per farm Table 7: Type and area of land holding for farmers in the ... 14, average land taxes and fees for land rent were 2.9 million VND per ha, and ranged from 1.2 to million VND per and accounted for 3.7% of the total cost Land taxes or fees of tidal and pond culture ... cleaning; seed selection and stocking; algal production and pond management; harvesting and preservation; preparing production plan, data recording and financial analysis; and household suggestions...

Ngày tải lên: 21/06/2014, 06:20

... GUI and later on we will experiment with packet capture and the analysis of the captured data Meanwhile we will be using some common network protocols and terminologies such as HTTP, TCP, and ... information you need to set up Wireshark and network analysis You will learn the basics of Wireshark, get started with building your first course, and discover some tips and tricks for using Wireshark ... sequence Analysis: The final step involves the analysis of captured and re-assembled data The initial analysis involves identifying the protocol type, the communication channel, port numbers, and...

Ngày tải lên: 27/07/2014, 22:50

... conceived and supervised by AB Bioinformatics analysis was performed by DAQ RNA and DNA extraction was performed by IK, KKL, and MDT JPL contributed mice and tumor samples and KKL performed array analysis ... visualized as a ‘progression network by combining correlation and differential expression analysis (see Materials and methods; genes used to build this network and fold-change values are listed ... Statistical analysis was performed with the R package [32] Materials and methods eQTL analysis Mouse models, gene expression, and aCGH Pairs of papillomas from the same animal were combined for eQTL analysis...

Ngày tải lên: 09/08/2014, 22:23

... each row to mean = and standarad deviation (SD) = 1, and subjected the normalized matrix to average-linkage hierarchical clustering using the EXPANDER package for microarray data analysis [28,29] ... A, Shamir R: CLICK and EXPANDER: a system for clustering and visualizing gene expression data Bioinformatics 2003, 19:1787-1799 EXPANDER [http://www.cs.tau.ac.il/~rshamir/expander/] Dennis G Jr, ... transcriptional responses has been a long-standing challenge in the signal transduction field External and internal stimuli may activate complex networks whose analysis by traditional biochemistry can...

Ngày tải lên: 14/08/2014, 14:21

... nourish the mainland beaches and sandy barriers that form across estuary mouths and tidal inlets Mainland beaches and barriers are typically steep and narrow and are dominated by crossshore sediment ... be available The hinterland connections should be efficient and have enough capacity In Paragraph 1.1.2 it was stated that knowledge and understanding about the metocean and morphological circumstances ... 111 Figure 80: sand spit and land reclamation – coastal port 112 Figure 81: cross-section of sand spit 112 Figure 82: erosion profile for sandy beaches ...

Ngày tải lên: 03/10/2014, 13:13

... for Labor and Social Affairs”, Labor and Social Affair Press, Hanoi 2009 Due to limited time and within the framework of a minor MA thesis, the study just mainly focuses on grammatical and lexical ... Text and Discourse Continuum London and New York 11 Halliday, M.A.K and Hasan, R (19776) Cohesion in English London: Longman Group Limited 12 Halliday, M.A.K and Hasan, R (1985) Spoken and Written ... towards teaching cohesion and student’s perception of understanding cohesive devices to reading exercises Data from the interview and questionnaire will be analyzed qualitatively and quantitatively...

Ngày tải lên: 10/08/2015, 19:50

... Mathematical representation 1.3.2 Definitions and notations 1.3.3 Biological network analysis and comparison 1.3.4 Network analysis and comparison toolsets 1.4 Thesis organization ... by biological networks A network can be metabolic network, protein-protein interaction (PPI) network, regulatory network, etc Metabolic networks are classic examples for using a network to represent ... functional analysis 1.3.4 Network analysis and comparison toolsets Multiple softwares and platforms are developed to provide comprehensive analysis and comparison on real network data sets To name...

Ngày tải lên: 09/09/2015, 08:13

... networks, social networks, world wide website networks and ecological networks, have been shown to share common structural design and operational principles [5] Working of biological, chemical and ... visualizable, computationally affordable analysis of complex process and biological phenomena Design and analysis of networks: Complex networks are inherent to many process and natural systems Due to modularity ... functions and structures are well exhibited using networks of smaller modules Complex network analysis is in itself a major area of research demanding new measures and concepts The network synthesis...

Ngày tải lên: 11/09/2015, 16:05