PPT-Networks with Signed Edges

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CS224W Social and Information Network Analysis Jure Leskovec Stanford University httpcs224wstanfordedu Today Signed Networks Networks with positive and negative

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Networks with Signed Edges: Transcript

CS224W Social and Information Network Analysis Jure Leskovec Stanford University httpcs224wstanfordedu Today Signed Networks Networks with positive and negative relationships. Introduction. 2. Social . networks model social relationships by . graph structures. using vertices and edges. . Vertices. model individual social actors in a network, . while . edges. model relationships between social actors.. Introduction. 2. Model: Social Graph. From SIGMOD11-tutorial. 3. Model: Social Graph. From SIGMOD11-tutorial. 4. Model: Social Graph. From SIGMOD11-tutorial. 5. Model: Social Graph. Facebook. graph from: . with emphasis on information and social networks. T-214-SINE. Summer 2011. Chapter 3. Ýmir Vigfússon. Positive and negative relationships. People are either mutual friends (+) or enemies (-). For now assume a . Isabelle Stanton, UC Berkeley. Gabriel . Kliot. , Microsoft Research XCG. Modern graph datasets are huge. The web graph had over a trillion links in 2011. Now?. . facebook. has “more than 901 million users with average degree 130”. in Dynamic Graphs. Viswanath. . Gunturi. (4192285). Bala. . Subrahmanyam. . Kambala. (4451379) . Application Domain. Transportation Networks:. Sample Dataset. Sample dataset showing the dynamic nature . Bipartite Matching. Alexandra Stefan. Flow Network. A . flow network. is a . directed. graph G = (V,E) in which each edge, (. u,v. ) has a . non-negative capacity, c(. u,v. ) ≥ 0. , and for any pair of vertices (. TJTSD66: Advanced Topics in Social Media. (Social . Media . Mining). Dr. WANG, Shuaiqiang @ CS & IS, JYU. Email: . shuaiqiang.wang@jyu.fi. Homepage: . http://users.jyu.fi/~swang/. Why should I use network models?. Christopher Muir. CS 494. Table of Contents. Motivation. *. Definitions. *. History. *. Theory. *. Open Problems. *. Applications. * . Homework. * . References. Motivation. Graphs show the relationships between different objects. Csaba. . Tóth. , . Godfried. Toussaint, and . Andrew Winslow. Klee’s Art Gallery Problem. Victor Klee (1973): How many guards . are needed to see the entire floor plan?. Consider the floor plan of an art gallery, and point. Brian Aronson. Review of ego networks. Ego network (personal network). Ego: Focal node/respondent. Alter: Actors ego has ties with. Dyad: Pair of individuals. Ties. (Ego). D. C. B. Tie types. Friends. Ali Cole. Charly. . Mccown. Madison . Kutchey. Xavier . henes. Definition. A directed network based on the structure of connections within an organism's brain. Many inputs and only a couple outputs. 1. Local Area Networks. Aloha. Slotted Aloha. CSMA (non-persistent, 1-persistent, . p-persistent). CSMA/CD. Ethernet. Token Ring. Networks: Local Area Networks. 2. Data Link. Layer. 802.3. ). Prof. . Ralucca Gera, . Applied Mathematics Dept.. Naval Postgraduate School. Monterey, California. rgera@nps.edu. Excellence Through Knowledge. Learning Outcomes. I. dentify . network models and explain their structures. Digitally signed by RAINEYBARBOSA ALVESMARINHO:56415451472Date: 2008.08.05 15:06:16 -03:00Reason: REGISTRO DIGITALLocation: 2

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