نتایج جستجو برای: balance theory

تعداد نتایج: 915235  

Journal: :CoRR 2017
Tyler Derr Chenxing Wang Suhang Wang Jiliang Tang

In this paper, we perform the initial and comprehensive study on the problem of measuring node relevance on signed social networks. We design numerous relevance measurements for signed social networks from both local and global perspectives and investigate the connection between signed relevance measurements, balance theory and signed network properties. Experimental results are conducted to st...

2003
H. Köfler

As stray load losses are the most unknown element of the balance of power in induction machines a number of theories how to calculate and to measure these losses exist. The following intends to describe, compare and criticise a number of different measuring methods performed with the same machine. By discussion of the theoretical background of additional losses the deficiencies of the different...

Journal: :I. J. Bifurcation and Chaos 2010
Giacomo Innocenti Alberto Tesi Roberto Genesio

The paper deals with the characterization of Hopf bifurcations in families of third order autonomous systems involving quadratic nonlinearities. By employing Harmonic Balance (HB) tools, the set of system parameters corresponding to supercritical and subcritical bifurcations is analytically determined, together with an approximation of the actual bifurcated periodic solution. It is believed tha...

2016
Sourav Sengupta Shailesh J. Mehta Mohan Krishnamoorthy

We use the theoretical premises of balance theory to conceptualize stability and explain how stability develops in buyer-service provider-customer service triads. We question the prevalent assumption of balanced to be stable and establish a fine distinction. We also conceptualize three key drivers of stability, namely, trust, dominance and opportunistic collaboration.

2009
Jeroen Bruggeman

Detecting communities in complex networks accurately is a prime challenge, preceding further analyses of network characteristics and dynamics. Until now, community detection took into account only positively valued links, while many actual networks also feature negative links. We extend an existing Potts model to incorporate negative links as well, resulting in a method similar to the clusterin...

2013
Nicolo Cesa-Bianchi Claudio Gentile Fabio Vitale Giovanni Zappella

Motivated by social balance theory, we develop a theory of link classification in signed networks using the correlation clustering index as measure of label regularity. We derive learning bounds in terms of correlation clustering within three fundamental transductive learning settings: online, batch and active. Our main algorithmic contribution is in the active setting, where we introduce a new...

Journal: :CoRR 2017
Wenjun Mei Pedro Cisneros-Velarde Noah E. Friedkin Francesco Bullo

Social balance theory describes allowable and forbidden configurations of the topologies of signed directed social appraisal networks. In this paper, we propose two discrete-time dynamical systems that explain how an appraisal network evolves towards social balance from an initially unbalanced configuration. These two models are based on two different socio-psychological mechanisms respectively...

Journal: :CoRR 2012
Daifeng Li Zhipeng Luo Golden Guo-Zheng Sun Jie Tang Jingwei Zhang

Tencent Weibo, as one of the most popular micro-blogging services in China, has attracted millions of users, producing 30-60 millions of weibo (similar as tweet in Twitter) daily. With the overload problem of user generate content, Tencent users find it is more and more hard to browse and find valuable information at the first time. In this paper, we propose a Factor Graph based weibo recommend...

Journal: :Studies in history and philosophy of biological and biomedical sciences 2017
Yoichi Ishida

The period between the 1940s and 1960s saw the hardening of the modern synthesis in evolutionary biology. Gould and Provine argue that Wright's shifting balance theory of evolution hardened during this period. But their account does not do justice to Wright, who always regarded selection as acting together with drift. This paper presents a more adequate account of the development of Wright's sh...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...

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