Aging in citation networks

by: Kamalika B Hajra, Parongama Sen

Physica A: Statistical Mechanics and its Applications, Vol. 346, No. 1-2. (1 February 2005), pp. 44-48.

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Abstract

In many growing networks, the age of the nodes plays an important role in deciding the attachment probability of the incoming nodes. For example, in a citation network, very old papers are seldom cited while recent papers are usually cited with high frequency. We study actual citation networks to find out the distribution T(t) of t, the time interval between the published and the cited paper. For different sets of data we find a universal behaviour: T(t)~t-0.9 for t[less-than-or-equals, slant]tc and T(t)~t-2 for t>tc where tc~O(10).

@article{citeulike:1093801, abstract = {In many growing networks, the age of the nodes plays an important role in deciding the attachment probability of the incoming nodes. For example, in a citation network, very old papers are seldom cited while recent papers are usually cited with high frequency. We study actual citation networks to find out the distribution T(t) of t, the time interval between the published and the cited paper. For different sets of data we find a universal behaviour: T(t)~t-0.9 for t[less-than-or-equals, slant]tc and T(t)~t-2 for t>tc where tc~O(10).}, author = {Hajra, Kamalika B. and Sen, Parongama }, booktitle = {Statphys - Kolkata V: Proceedings of the International Conference on Statistical Physics: @'Complex Networks: Structure, Function and Processes@'}, citeulike-article-id = {1093801}, doi = {10.1016/j.physa.2004.08.048}, journal = {Physica A: Statistical Mechanics and its Applications}, keywords = {citation-graph}, month = {February}, number = {1-2}, pages = {44--48}, posted-at = {2008-03-24 22:32:02}, priority = {2}, title = {Aging in citation networks}, url = {http://dx.doi.org/10.1016/j.physa.2004.08.048}, volume = {346}, year = {2005} }

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TY - JOUR ID - citeulike:1093801 TI - Aging in citation networks T2 - Statphys - Kolkata V: Proceedings of the International Conference on Statistical Physics: @'Complex Networks: Structure, Function and Processes@' JF - Physica A: Statistical Mechanics and its Applications VL - 346 IS - 1-2 SP - 44 EP - 48 N2 - In many growing networks, the age of the nodes plays an important role in deciding the attachment probability of the incoming nodes. For example, in a citation network, very old papers are seldom cited while recent papers are usually cited with high frequency. We study actual citation networks to find out the distribution T(t) of t, the time interval between the published and the cited paper. For different sets of data we find a universal behaviour: T(t)~t-0.9 for t[less-than-or-equals, slant]tc and T(t)~t-2 for t>tc where tc~O(10). KW - citation-graph AU - Hajra, Kamalika AU - Sen, Parongama PY - 2005/02/01/ UR - http://dx.doi.org/10.1016/j.physa.2004.08.048 ER -

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