Network of English Wikipedia articles of 2017

We analyze the English language edition of Wikipedia collected in May 2017 (ENWIKI2017) [30] containing N = 5 416 537 articles (nodes) connected by N_l = 122 232 932 directed hyperlinks between articles (without self-citations). From this data set we extract the N_cr = 37 types of cancers listed at [24]. From [25] we also collect names of drugs related to cancer diseases obtaining the list of N_d = 203 drugs present at Wikipedia. The lists of 37 cancer types and 203 drugs are given in Table 1 and ​and2.2. This reduced set of N_r = 240 nodes is illustrated in the inset of Fig 1. For global influence investigations, it is complemented by N_cn = 195 world countries listed in [28]. Thus in total we have the reduced network of N_r = N_cr + N_d + N_cn = 435 ≪ N nodes embedded in the global network with more than 5 millions nodes. All data sets are available at [28]. The present study complies with Wikimedia terms of use.

Bottom right inset: subnetwork of N_r = 240 articles comprising N_cr = 37 articles devoted to cancers (green nodes) and N_d = 203 articles devoted to cancer drugs (golden nodes). Main figure: subnetwork of top 20 cancers and top 20 cancer drugs extracted from the ranking of 2017 English Wikipedia using PageRank algorithm (see Table 3). The bulk of the other Wikipedia articles is not shown. Arrows symbolize hyperlinks between cancer and cancer drug articles in the global Wikipedia.