KONECT
KONECT > Statistics > Fill

## Fill

The fill of a network is the proportion of edges to the total number of possible edges. The fill is used as a basic parameter in the ErdÅs–RÃ©nyi random graph model [1], where it denotes the probability that an edge is present between two randomly chosen nodes, and is usually called $$p$$, which is the notation we also use in KONECT. \begin{align} p &= \left\{ \begin{array}{ll} 2m / [n(n-1)] & \text{when $$G$$ is undirected without loop} \\ 2m / [n(n+1)] & \text{when $$G$$ is undirected with loops} \\ m / [n(n-1)] & \text{when $$G$$ is directed without loops} \\ m / n^2 & \text{when $$G$$ is directed with loops} \\ m / (n_1 n_2) & \text{when $$G$$ is bipartite} \end{array}\right. \end{align} In the undirected case, the expression is explained by the fact that the total number of possible edges is $$n(n-1)/2$$ excluding loops. The fill is sometimes also called the density of the network, in particular in a mathematical context, or the connectance of the network (used for instance in this blog entry: proopnarine.wordpress.com/2010/02/11/graphs-and-food-webs).

 [1] Paul ErdÅs and AlfrÃ©d RÃ©nyi. On random graphs I. Publ. Math. Debrecen, 6:290–297, 1959.

 Code Name Category F. W. M. $$n$$ $$m$$ $$p$$ WT Web trackers ⬤ Hyperlink 68,087,704 140,613,762 3.98440 × 10–7 DL Wikipedia, English ⬤ Hyperlink 18,268,992 172,183,984 4.09094 × 10–7 Wen Wikipedia links, en ⬤ Hyperlink 12,150,976 378,142,420 8.13218 × 10–7 DB DBpedia ⬤ Misc 3,966,924 13,820,853 8.17231 × 10–7 Wa Twitter ⬤ OnlineContact 2,919,613 12,887,063 8.56521 × 10–7 WK Wikipedia, English ⬤ Communication 2,394,385 5,021,410 8.75866 × 10–7 Dti Delicious ti ⬤ Folksonomy 42,801,712 301,183,605 9.00502 × 10–7 Ten Wikipedia talk, English ⬤ Communication 2,987,535 24,981,163 1.05089 × 10–6 PC US patents ⬤ Citation 3,774,768 16,518,947 1.15932 × 10–6 Tzh Wikipedia talk, Chinese ⬤ Communication 1,219,241 2,284,546 1.16721 × 10–6 Tfr Wikipedia talk, French ⬤ Communication 1,420,367 4,641,928 1.22507 × 10–6 Tar Wikipedia talk, Arabic ⬤ Communication 1,095,799 1,913,103 1.30299 × 10–6 RO California ⬤ Infrastructure 1,965,206 2,766,607 1.43272 × 10–6 en Wikipedia (en) ⬤ Authorship 29,143,573 266,769,613 1.48620 × 10–6 Pa DBLP ⬤ Authorship 6,851,776 8,649,016 1.51645 × 10–6 YT YouTube ⬤ Social 3,223,589 9,375,374 1.80443 × 10–6 R1 Texas ⬤ Infrastructure 1,379,917 1,921,660 2.01837 × 10–6 AR Amazon ratings ⬤ Rating 5,523,029 5,838,041 2.17415 × 10–6 Tit Wikipedia talk, Italian ⬤ Communication 863,846 3,067,680 2.22646 × 10–6 FX Flixster ⬤ Social 2,523,386 7,918,801 2.48727 × 10–6 RD Pennsylvania ⬤ Infrastructure 1,088,092 1,541,898 2.60468 × 10–6 HY Hyves ⬤ Social 1,402,673 2,777,419 2.82331 × 10–6 LJ LiveJournal ⬤ Social 4,847,571 68,475,391 2.91513 × 10–6 HUr Hudong related ⬤ Hyperlink 2,452,715 18,854,882 3.13422 × 10–6 WT TREC WT10g ⬤ Hyperlink 1,601,787 8,063,026 3.14260 × 10–6 Dui Delicious ui ⬤ Folksonomy 35,444,383 301,186,579 3.61759 × 10–6 Lj LiveJournal links ⬤ Social 5,204,176 49,174,464 3.63133 × 10–6 HUi Hudong internal ⬤ Hyperlink 1,984,484 14,869,484 3.77573 × 10–6 LY Youtube links ⬤ Social 1,138,499 4,942,297 3.81301 × 10–6 BAi Baidu internal ⬤ Hyperlink 2,141,300 17,794,839 3.84800 × 10–6 Ws Twitter (ICWSM) ⬤ Social 465,017 834,797 3.86051 × 10–6 Tru Wikipedia talk, Russian ⬤ Communication 457,017 2,282,055 4.40376 × 10–6 Wui Twitter u-i ⬤ Folksonomy 9,618,743 12,656,613 4.57513 × 10–6 CY Youtube friendship ⬤ Social 1,134,890 2,987,624 4.63926 × 10–6 LG LiveJournal ⬤ Affiliation 13,891,479 112,307,385 4.68454 × 10–6 Tpt Wikipedia talk, Portuguese ⬤ Communication 541,355 2,424,962 4.99311 × 10–6 Uf Wikipedia, fr (dynamic) ⬤ Hyperlink 2,212,682 59,008,831 5.02516 × 10–6 Tes Wikipedia talk, Spanish ⬤ Communication 497,446 2,702,879 5.05187 × 10–6 EU EU institution ⬤ Communication 265,214 420,045 5.97177 × 10–6 Wti Twitter t-i ⬤ Folksonomy 1,773,193 2,635,885 5.98791 × 10–6 FL Flickr ⬤ Social 2,302,925 33,140,017 6.24875 × 10–6 Tde Wikipedia talk, German ⬤ Communication 519,403 6,729,794 6.49176 × 10–6 GO Google ⬤ Hyperlink 875,713 5,105,039 6.65696 × 10–6 Ug Wikipedia, de (dynamic) ⬤ Hyperlink 2,166,669 86,337,879 6.67127 × 10–6 YD Yahoo advertisers ⬤ Lexical 653,260 2,931,708 6.86987 × 10–6 SK Skitter ⬤ Computer 1,696,415 11,095,298 7.71090 × 10–6 Wde Wikipedia links, de ⬤ Hyperlink 3,225,565 81,626,917 7.84552 × 10–6 Ud Wikipedia, nl (dynamic) ⬤ Hyperlink 1,039,252 20,070,561 9.90182 × 10–6 Wru Wikipedia links, ru ⬤ Hyperlink 2,853,118 82,056,101 1.00803 × 10–5 LF Flickr links ⬤ Social 1,715,255 15,551,250 1.05715 × 10–5 Tnl Wikipedia talk, Dutch ⬤ Communication 225,749 1,554,699 1.10959 × 10–5 Dl Discogs ⬤ Affiliation 3,780,417 14,414,659 1.11590 × 10–5 WC Wikipedia (en) ⬤ Feature 3,889,933 3,795,796 1.11940 × 10–5 Wfr Wikipedia links, fr ⬤ Hyperlink 3,023,165 102,382,410 1.12022 × 10–5 WP Wikipedia, English ⬤ Hyperlink 1,870,709 39,953,145 1.14167 × 10–5 PL Pokec ⬤ Social 1,632,803 30,622,564 1.14861 × 10–5 Ui Wikipedia, it (dynamic) ⬤ Hyperlink 1,204,009 34,826,283 1.18483 × 10–5 CS CiteSeer ⬤ Citation 384,413 1,751,463 1.18524 × 10–5 Up Wikipedia, pl (dynamic) ⬤ Hyperlink 1,033,050 25,026,208 1.19423 × 10–5 Pc DBLP ⬤ Coauthorship 1,314,050 18,986,618 1.24222 × 10–5 es Wikipedia (es) ⬤ Authorship 3,623,742 27,011,506 1.31391 × 10–5 OG Orkut ⬤ Affiliation 14,297,249 327,037,487 1.34585 × 10–5 ND Notre Dame ⬤ Hyperlink 325,729 1,497,134 1.41107 × 10–5 Bti BibSonomy t-i ⬤ Folksonomy 1,176,793 2,555,080 1.59099 × 10–5 BS Berkeley/Stanford ⬤ Hyperlink 685,230 7,600,595 1.61873 × 10–5 CA Amazon (MDS) ⬤ Misc 334,863 925,872 1.65138 × 10–5 BAr Baidu related ⬤ Hyperlink 415,641 3,284,387 1.90113 × 10–5 fr Wikipedia (fr) ⬤ Authorship 4,598,826 46,168,355 1.90516 × 10–5 Wpt Wikipedia links, pt ⬤ Hyperlink 1,603,222 49,021,409 1.90721 × 10–5 de Wikipedia (de) ⬤ Authorship 4,046,832 57,323,775 1.91172 × 10–5 OC Occupation ⬤ Affiliation 356,884 250,945 1.93356 × 10–5 Wut Twitter u-t ⬤ Folksonomy 880,846 4,664,605 2.03435 × 10–5 Am Amazon (TWEB) ⬤ Misc 403,394 3,387,388 2.08165 × 10–5 Cti CiteULike t-i ⬤ Folksonomy 1,038,323 2,411,819 2.08495 × 10–5 CD DBLP co-authorship ⬤ Coauthorship 317,080 1,049,866 2.08847 × 10–5 Dut Delicious ut ⬤ Folksonomy 6,178,261 301,186,579 2.18117 × 10–5 DF Digg friends ⬤ Social 279,630 1,731,653 2.21460 × 10–5 Wpl Wikipedia links, pl ⬤ Hyperlink 1,529,135 57,489,447 2.45865 × 10–5 SO Stack Overflow ⬤ Rating 1,187,072 1,301,942 2.47003 × 10–5 OR Orkut ⬤ Social 3,072,441 117,184,899 2.48276 × 10–5 Wit Wikipedia links, it ⬤ Hyperlink 1,865,965 91,555,008 2.62951 × 10–5 DB Douban ⬤ Social 154,908 327,162 2.72677 × 10–5 Wja Wikipedia links, ja ⬤ Hyperlink 1,610,638 71,055,717 2.73907 × 10–5 SF Stanford ⬤ Hyperlink 281,903 2,312,497 2.90994 × 10–5 Bx BookCrossing (ratings) ⬤ Rating 341,559 433,652 2.99739 × 10–5 AM Actor movies ⬤ Affiliation 639,286 1,470,404 2.99850 × 10–5 PR Producers ⬤ Authorship 236,510 207,268 3.05697 × 10–5 LO Location ⬤ Feature 397,589 293,697 3.19553 × 10–5 BX BookCrossing (implicit) ⬤ Rating 551,079 1,149,739 3.20712 × 10–5 WR Writers ⬤ Authorship 224,925 144,340 3.49542 × 10–5 GN Gnutella ⬤ Computer 62,586 147,892 3.77570 × 10–5 W2 WikiSigned ⬤ OnlineContact 138,592 740,397 3.85468 × 10–5 it Wikipedia (it) ⬤ Authorship 2,531,261 26,241,217 4.07085 × 10–5 EN Enron ⬤ Communication 87,273 1,148,072 4.22654 × 10–5 LK Linux kernel mailing list threads ⬤ Interaction 421,599 1,565,683 4.22716 × 10–5 TM Teams ⬤ Affiliation 1,836,793 1,366,466 4.40014 × 10–5 Vti vi.sualize.us t-i ⬤ Folksonomy 659,472 2,298,816 4.42991 × 10–5 ST Movies ⬤ Feature 233,283 281,396 4.56035 × 10–5 EP Epinions ⬤ Social 131,828 841,372 4.84142 × 10–5 GW Gowalla ⬤ Social 196,591 950,327 4.91788 × 10–5 SD Slashdot ⬤ Communication 51,083 140,778 5.02688 × 10–5 Cui CiteULike u-i ⬤ Folksonomy 777,199 2,411,819 5.06810 × 10–5 TL Twitter lists ⬤ Social 23,370 33,101 6.06097 × 10–5 WO WordNet ⬤ Lexical 146,005 656,999 6.16399 × 10–5 GH Github ⬤ Authorship 233,905 440,237 6.44443 × 10–5 GP Google+ ⬤ Social 23,628 39,242 7.02936 × 10–5 Us Wikipedia, simple en (dynamic) ⬤ Hyperlink 100,312 1,627,472 7.50146 × 10–5 RL Record labels ⬤ Affiliation 355,095 233,286 7.52308 × 10–5 Scd Catster/Dogster ⬤ Social 623,766 15,699,276 8.06985 × 10–5 SZ Slashdot Zoo ⬤ Social 79,120 515,397 8.23415 × 10–5 ben Wikibooks (en) ⬤ Authorship 200,108 1,164,576 8.80826 × 10–5 ES Epinions ⬤ Social 75,879 508,837 8.83774 × 10–5 men Wiktionary (en) ⬤ Authorship 2,163,240 8,998,641 9.02309 × 10–5 DG Digg ⬤ Communication 30,398 87,627 9.35069 × 10–5 Sd Dogster ⬤ Social 426,820 8,546,581 9.38279 × 10–5 YG YouTube ⬤ Affiliation 218,563 293,360 1.03466 × 10–4 Ff Filmtipset ⬤ Social 39,199 87,415 1.13783 × 10–4 qen Wikiquote (en) ⬤ Authorship 137,970 549,210 1.16594 × 10–4 Vui vi.sualize.us u-i ⬤ Folksonomy 529,646 2,298,816 1.17638 × 10–4 WD Wikipedia Threads (de) ⬤ Communication 91,340 2,435,731 1.18314 × 10–4 Ow Facebook ⬤ Communication 46,952 876,993 1.24331 × 10–4 BK Brightkite ⬤ Social 58,228 214,078 1.26283 × 10–4 TR TREC (disks 4–5) ⬤ Text 2,285,379 151,632,178 1.28187 × 10–4 ER Epinions ⬤ Rating 996,744 13,668,320 1.50097 × 10–4 IN CAIDA ⬤ Computer 26,475 53,381 1.52321 × 10–4 Cut CiteULike u-t ⬤ Folksonomy 198,707 2,411,819 1.54741 × 10–4 AC arXiv cond-mat ⬤ Authorship 55,467 58,595 1.59129 × 10–4 CC Cora citation ⬤ Citation 23,166 91,500 1.70505 × 10–4 Bui BibSonomy u-i ⬤ Folksonomy 779,035 2,555,080 1.80314 × 10–4 TO Internet topology ⬤ Computer 34,761 171,403 1.89517 × 10–4 nen Wikinews (en) ⬤ Authorship 184,536 901,416 2.01843 × 10–4 FG Flickr ⬤ Affiliation 895,589 8,545,307 2.08241 × 10–4 LX Linux ⬤ Software 30,837 213,954 2.24997 × 10–4 GE DBpedia genre ⬤ Feature 525,651 463,497 2.29991 × 10–4 RE Reuters ⬤ Text 1,846,441 96,903,520 2.73071 × 10–4 CO Wikipedia conflict ⬤ OnlineContact 118,100 2,917,785 3.00239 × 10–4 Lk Linux kernel mailing list replies ⬤ Communication 63,399 1,096,440 3.11541 × 10–4 Pi DBLP ⬤ Citation 12,591 49,743 3.13770 × 10–4 Vut vi.sualize.us u-t ⬤ Folksonomy 116,279 2,298,816 3.20021 × 10–4 PHc arXiv hep-ph ⬤ Citation 34,546 421,578 3.53250 × 10–4 LI Libimseti.cz ⬤ Social 220,970 17,359,346 3.55524 × 10–4 But BibSonomy u-t ⬤ Folksonomy 216,261 2,555,080 3.82829 × 10–4 Ol Facebook (WOSN) ⬤ Social 63,731 817,035 4.02324 × 10–4 LM Livemocha ⬤ Social 104,103 2,193,083 4.04728 × 10–4 YS Yahoo songs ⬤ Rating 2,626,941 256,804,235 4.10506 × 10–4 CL Actor collaborations ⬤ Misc 382,219 33,115,812 4.11746 × 10–4 FI Flickr ⬤ Misc 105,938 2,316,948 4.12902 × 10–4 PL Prosper loans ⬤ Interaction 89,269 3,394,979 4.17905 × 10–4 PG Pretty Good Privacy ⬤ OnlineContact 10,680 24,316 4.26403 × 10–4 THc arXiv hep-th ⬤ Citation 27,770 352,807 4.57494 × 10–4 CN Countries ⬤ Affiliation 1,182,526 637,134 4.59647 × 10–4 Sc Catster ⬤ Social 149,700 5,449,275 4.86320 × 10–4 mfr Wiktionary (fr) ⬤ Authorship 1,917,281 7,399,298 5.01104 × 10–4 SX Sexual escorts ⬤ Rating 26,836 50,632 5.23601 × 10–4 UG US power grid ⬤ Infrastructure 4,941 6,594 5.40303 × 10–4 Mti MovieLens t-i ⬤ Folksonomy 40,657 95,580 5.66380 × 10–4 DBT TV Tropes ⬤ Feature 216,508 3,232,134 5.72284 × 10–4 EA Edinburgh Associative Thesaurus ⬤ Lexical 23,132 511,764 5.83659 × 10–4 Mut MovieLens u-t ⬤ Folksonomy 24,546 95,580 6.60421 × 10–4 AS Route views ⬤ Computer 6,474 13,895 6.62943 × 10–4 GC Google.com internal ⬤ Hyperlink 15,763 171,206 6.89035 × 10–4 EF Facebook (NIPS) ⬤ Social 2,888 2,981 7.15069 × 10–4 CH Chess ⬤ Interaction 7,301 65,053 7.41048 × 10–4 mde Wiktionary (de) ⬤ Authorship 157,806 1,229,501 8.07324 × 10–4 bfr Wikibooks (fr) ⬤ Authorship 33,881 201,727 8.33926 × 10–4 Fc Filmtipset ⬤ Interaction 104,890 1,266,753 8.90252 × 10–4 PW Prosper.com ⬤ Interaction 25,697 35,377 9.18703 × 10–4 AP arXiv astro-ph ⬤ Coauthorship 18,771 198,050 1.12422 × 10–3 AD Advogato ⬤ Social 6,541 51,127 1.19571 × 10–3 CR Chicago ⬤ Infrastructure 1,467 1,298 1.20709 × 10–3 MF Human protein (Figeys) ⬤ Metabolic 2,239 6,452 1.28760 × 10–3 Mp Protein ⬤ Metabolic 1,870 2,277 1.30160 × 10–3 DJ JDK dependency ⬤ Software 6,434 150,985 1.30206 × 10–3 Dj JUNG dependency ⬤ Software 6,120 138,706 1.34946 × 10–3 MV Human protein (Vidal) ⬤ Metabolic 3,133 6,726 1.37002 × 10–3 DNc DNC emails ⬤ Communication 2,029 39,264 1.56549 × 10–3 WU WebUni Magdeburg ⬤ Text 212,552 3,869,707 1.56930 × 10–3 TC Air traffic control ⬤ Infrastructure 1,226 2,615 1.73977 × 10–3 Mui MovieLens u-i ⬤ Folksonomy 15,619 95,580 1.82079 × 10–3 nfr Wikinews (fr) ⬤ Authorship 27,954 193,618 1.94108 × 10–3 ME Adolescent health ⬤ HumanSocial 2,539 12,969 2.01258 × 10–3 EL Wikipedia elections ⬤ OnlineContact 7,118 103,675 2.04625 × 10–3 ET Euroroad ⬤ Infrastructure 1,174 1,417 2.05794 × 10–3 MS Human protein (Stelzl) ⬤ Metabolic 1,706 6,207 2.13267 × 10–3 PS Prosper.com ⬤ Affiliation 14,177 21,017 3.15212 × 10–3 OF OpenFlights ⬤ Infrastructure 3,425 67,663 3.20486 × 10–3 MC Crime ⬤ Interaction 2,209 1,476 3.23132 × 10–3 OF OpenFlights ⬤ Infrastructure 2,939 30,501 3.53234 × 10–3 Fr Filmtipset ⬤ Rating 225,153 19,554,219 3.78501 × 10–3 Ls Last.fm song ⬤ Interaction 1,086,604 19,150,868 4.10229 × 10–3 Lb Last.fm band ⬤ Interaction 176,061 19,150,868 5.20060 × 10–3 UC UC Irvine messages ⬤ Communication 1,899 59,835 5.63105 × 10–3 Sh Hamsterster full ⬤ Social 2,426 16,631 5.65387 × 10–3 MN Bible ⬤ Lexical 1,773 16,401 5.81267 × 10–3 DV Digg votes ⬤ Rating 282,371 3,018,197 6.07869 × 10–3 UL Unicode languages ⬤ Feature 1,122 1,255 7.09174 × 10–3 Shf Hamsterster friendships ⬤ Social 1,858 12,534 7.26544 × 10–3 RC Reactome ⬤ Metabolic 6,327 147,547 7.37049 × 10–3 PH arXiv hep-ph ⬤ Coauthorship 28,093 4,596,803 7.97895 × 10–3 A@ U. Rovira i Virgili ⬤ Communication 1,133 5,451 8.50021 × 10–3 Dt Discogs artist–style ⬤ Feature 3,236,269 24,085,580 9.26432 × 10–3 TH arXiv hep-th ⬤ Coauthorship 22,908 2,673,133 9.31789 × 10–3 MP PDZBase ⬤ Metabolic 212 244 1.08070 × 10–2 AF US airports ⬤ Infrastructure 1,574 28,236 1.14043 × 10–2 Ds Discogs label–style ⬤ Feature 487,911 5,255,950 1.14057 × 10–2 NX Netflix ⬤ Rating 978,148 100,480,507 1.17756 × 10–2 Mg Blogs ⬤ Hyperlink 1,224 19,025 1.26988 × 10–2 M3 MovieLens 10M ⬤ Rating 150,433 10,000,054 1.34033 × 10–2 UF UC Irvine forum ⬤ Interaction 2,320 33,720 1.51062 × 10–2 MI Physicians ⬤ HumanSocial 241 1,098 1.89834 × 10–2 PM Caenorhabditis elegans ⬤ Metabolic 453 4,596 1.98384 × 10–2 DN DNC emails co-recipients ⬤ OnlineContact 2,029 136,602 2.94781 × 10–2 If Infectious ⬤ HumanContact 410 17,298 3.29775 × 10–2 M2 MovieLens 1M ⬤ Rating 15,786 1,000,209 4.46836 × 10–2 MO Residence hall ⬤ HumanSocial 217 2,672 5.70063 × 10–2 M1 MovieLens 100k ⬤ Rating 3,568 100,000 6.30467 × 10–2 AN David Copperfield ⬤ Lexical 112 425 6.83719 × 10–2 ML Little Rock Lake ⬤ Trophic 183 2,494 7.44722 × 10–2 MH Highschool ⬤ HumanSocial 70 366 7.57764 × 10–2 HA Haggle ⬤ HumanContact 274 28,244 7.75113 × 10–2 DO Dolphins ⬤ Animal 62 159 8.40825 × 10–2 Ml Les Misérables ⬤ Misc 77 254 8.68079 × 10–2 CU Contiguous USA ⬤ Infrastructure 49 107 9.09864 × 10–2 Dr Discogs label–genre ⬤ Feature 541,557 4,147,665 1.18590 × 10–1 Da Discogs artist–genre ⬤ Feature 3,509,661 19,033,891 1.19369 × 10–1 Mt Train bombing ⬤ HumanContact 64 243 1.20536 × 10–1 ZA Zachary karate club ⬤ HumanSocial 34 78 1.39037 × 10–1 JZ Jazz musicians ⬤ HumanSocial 198 2,742 1.40594 × 10–1 MT Taro exchange ⬤ HumanSocial 22 78 1.68831 × 10–1 BC Corporate Leadership ⬤ Affiliation 64 99 2.06250 × 10–1 RA Manufacturing emails ⬤ Communication 167 82,927 2.07394 × 10–1 Ar American Revolution ⬤ Affiliation 277 160 2.35294 × 10–1 J2 Jester 150 ⬤ Rating 101,524 1,728,847 2.43607 × 10–1 BM Club membership ⬤ Affiliation 65 95 2.53333 × 10–1 MA Cattle ⬤ Animal 28 217 2.87037 × 10–1 MQ Macaques ⬤ Animal 62 1,187 3.13855 × 10–1 MZ Zebra ⬤ Animal 27 111 3.16239 × 10–1 Mc Sheep ⬤ Animal 28 250 3.30688 × 10–1 HY Hypertext 2009 ⬤ HumanContact 113 20,818 3.47029 × 10–1 SW Southern women 1 ⬤ Interaction 50 89 3.53175 × 10–1 MW Windsurfers ⬤ HumanContact 43 336 3.72093 × 10–1 Mv Dutch college ⬤ HumanSocial 32 3,062 3.80645 × 10–1 SC South African Companies ⬤ Affiliation 17 13 4.33333 × 10–1 MR Rhesus ⬤ Animal 16 111 4.62500 × 10–1 MX Seventh graders ⬤ HumanSocial 29 376 4.63054 × 10–1 MB Bison ⬤ Animal 26 314 4.83077 × 10–1 HT Highland tribes ⬤ HumanSocial 16 58 4.83333 × 10–1 TF Twitter (MPI) ⬤ Social 52,579,682 1,963,263,821 TW Twitter (WWW) ⬤ Social 41,652,230 1,468,365,182 Mh Hens ⬤ Animal 32 496 5.00000 × 10–1 RM Reality Mining ⬤ HumanContact 96 1,086,404 5.56798 × 10–1 Sw Southern women 2 ⬤ Interaction 15 14 5.60000 × 10–1 J1 Jester 100 ⬤ Rating 146,942 4,136,360 5.63376 × 10–1 FR Friendster ⬤ Social 68,349,466 2,586,147,869 FO FOLDOC ⬤ Hyperlink 13,356 125,207 6.74096 × 10–4 R2 Reuters-21578 ⬤ Text 81,791 1,464,182 1.17353 × 10–3 EX Wikipedia (en) ⬤ Text 279,519 7,846,807 3.86276 × 10–3 FW Florida ecosystem wet ⬤ Trophic 128 2,106 1.29552 × 10–1 FD Florida ecosystem dry ⬤ Trophic 128 2,137 1.31459 × 10–1 Ms Sampson ⬤ HumanSocial 18 189 6.17647 × 10–1 MK Kangaroo ⬤ Animal 17 91 6.69118 × 10–1