2001/05/02 by Alexei Vázquez, Alexei Vazquez, Vazquez, Alexei
Biochemistry, Genetics and Molecular Biology · Chemistry · Physics and Astronomy · #Biomedical Text Mining and Ontologies #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #History and advancements in chemistry #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.dis-nn #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.cond-mat/0105031
12 pages, 6 figures
arxiv created 2001/05/02 · openalex publication_date 2001/05/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The out-degree distribution of citation networks is investigated. Statistical data of the number of papers cited within a paper (out-degree) for different journals in the period 1991-1999 is reported. The out-degree distribution is characterized by a maximum at intermediate out-degrees. At the left of the maximum there are strong fluctuations from journal to journal while is quite universal at the right, with two classes of journals. These two classes are associated with the existence or not of a restriction in the maximum number of pages per paper. The shape of the out-degree distribution does not change appreciable from period to period, but the average out-degree is observed to increase logarithmically with the number of published papers. These features are modeled using a recursive search model.