SOCIAL NETWORKS Mehmet Ali YILMAZ EEE-448 / Assoc. Prof. Dr. Turgay İBRİKÇİ

SOCIAL NETWORK THEORY  Social networks are the structure that connects the people, entities and organizations via a relation.

WHAT DO WE DO IN SOCIAL NETWORK ?  Social Connections  Media Sharing  Communication  Advertising and Marketing  Shopping  Business  Education/Information

WHAT ACTUALLY DO THE SOCIAL NETWORKS DO ?

SIX DEGREES OF SEPERATION  Small World Problem (1969, Milgram)  Six Degrees of Seperation (1929, Karinthy)  Kansans -> Iowa -> India -> Tennessee -> Virginia -> Newyork -> Boston (Sharon)

ANALYSIS OF SOCIAL NETWORKS  Sociograms  Main Components : Nodes and Ties  Main Characteristics : Degree, Density and Centrality  Main Structures : Ego-Centric, Soico-Centric.

ANALYSIS OF SOCIAL NETWORKS  SOCIOGRAMS They are the graphical represantations of the social network structures

MAIN COMPONENTS : NODES AND TIES  Nodes : People, Entitie, Organizations.  Ties : Directional, nondirectional, symmetrical.

MAIN COMPONENTS : NODES AND TIES  Neighbourhood, Path, Distance

MAIN CHARACTERISITCS  Network Size  Degree  Density  Centrality : * Degree Centrality * Betweeness Centrality * Closennes Centrality

MAIN CHARACTERISTICS  DEGREE The number of the edges (ties) that a node (Vertex) has.

MAIN CHARACTERISTICS  DENSITY The density of a social network is the ratio of the actual connections to the potential connections.

MAIN CHARACTERISTICS  CENTRALITY The extent to which a given actor is in the middle of the network is referred to as centrality. * Degree Centrality : In-degree (prominant) and out-degree (influential) * Betweeness Centrality : Hubs * Closenness Centraity

MAIN CHARACTERISTICS

WEAK TIES – STRONG TIES

TYPES OF SOCIAL NETWORKS  Ego-Centric Networks  Socio-Centric Networks

NETWORK VISUALITION  Snowball method * First Zone (Core) * Second Zone * Third Zone (Periphery)

SOCIAL NETWORK ANALYSIS  Matrix Represantation

SOCIAL NETWORK SITES  A social networking website is an online platform that allows users to create a public profile and interact with other users on the website.  Social Connections  Media Sharing  Communication  Advertising and Marketing  Shopping  Business  Education/Information

TYPES OF SOCIAL NETWORK SITES  Blogs The blogs are the websites that is a collection of data which is regularly updated and displayed in reverse of chronological order.  Post,  Blogging,  Blogger,  Most used :

TYPES OF SOCIAL NETWORK SITES

 Microblogging It is the combination of blogging and instant messaging. It allows the user to post by a limited characters( ).

TYPES OF SOCIAL NETWORK SITES  Wiki : This is a website that allows its users to type, delete or modify its content.

TYPES OF SOCIAL NETWORK SITES  Forum This is a discussion social network that the users can communicate by the posted messages.  Thread or topic.  Members and Moderators

TYPES OF SOCIAL NETWORK SITES  Peer to Peer (P2P) Human to human or computer to computer communication.

TYPES OF SOCIAL NETWORK SITES  Media Sharing

DIFFERENCES BETWEEN THE SOCIAL NETWORKS  Facebook  Twitter  Instagram  Youtube  LinkedIn

DATA HANDLING IN SOCIAL NETWORK SITES  Open Source Softwares and Thousands of Servers  Operating Systems : Linux, F5 Big-IP  Web server softwares : Apache most used

TRENDS IN SOCIAL NETWROKING  LiveStreaming  VLogs

SOCIAL MEDIA VS. SOCIAL NETWORKING  Social media is the content what you uploaded, shared, or typed while the social networking creates a platform to do all these tasks.

ADVANTAGES AND DISADVANTAGES OF SOCIAL NETWORKING  Disadvantages : * Time * Virtuallity * Barrier to other people * Promote terrorism, crime, etc. * Ruin the structure of a particular language * Bad effect on teens. * Strangers.  Advantages : * Keep in touch * Promote products * Allows you to express yourself * A great platform to seek and apply a job * Organization * Allows you to be aware of the news * Real time security

THANKS FOR ATTENTION !

REFERENCES   k_Theory k_Theory  networking/information/how-online-social-networks-work.htm networking/information/how-online-social-networks-work.htm  social-networking-works.html social-networking-works.html  degrees-of-separation/ degrees-of-separation/  elationships elationships 