Abstract
This paper aims to provide an insight into the roles of the different types of airports in China by improved K-means clustering algorithm. The first part of the work analyzed the characteristics of Chinese airline network and pointed out that the key to construct hub-and-spoke airline network is determining the function of each airport. The index system of airport function orientation was established from airport operation index, airport hinterland index and airport growth index. The airports in China were classified into four classes by the K-means clustering algorithm. In order to improve reliability of clustering algorithm, a formula was used to normalize the value of each index, and the airports were clustered by improved K-means clustering algorithm. The algorithm was simulated by the MATLAB and the clustered results show the airports have obvious hierarchy.
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Acknowledgements
The Chinese National Natural Science Foundation 71571182, 41501430 and National Science for Distinguished Young Scholars (61603396) supported this work. In addition, the Central University Project (3122016A002) also supported the thesis.
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Appendix: Index Value of Airports
Appendix: Index Value of Airports
Airport IATA | Passenger throughput (person-time) | Cargo throughput (ton) | Sorties of taking-off and landing | Number of navigable city | Airspace class | Number of airport stand | The tertiary sector GDP (billion ¥) | Per capita disposable income (¥) | Urban population (million) |
---|---|---|---|---|---|---|---|---|---|
PEK | 83,712,355 | 1,843,681.1 | 567,757 | 236 | 4F | 314 | 14987 | 40321 | 2114 |
TSN | 10,035,833 | 214,419.8 | 100,729 | 74 | 4E | 47 | 6905 | 32658 | 1472 |
TYN | 7,803,574 | 44,354.4 | 76,546 | 50 | 4E | 43 | 1322 | 24000 | 427 |
SJW | 5,110,536 | 42,976.2 | 51,980 | 51 | 4E | 69 | 1960 | 23000 | 1027 |
NAY | 4,455,263 | 37,091.9 | 38,661 | 41 | 4C | 25 | 14987 | 40321 | 2114 |
HET | 6,150,282 | 32,599.9 | 62,799 | 63 | 4E | 32 | 1709 | 25464 | 294 |
DSN | 1,731,882 | 9,455.7 | 29,584 | 41 | 4D | 11 | 1489 | 36132 | 200 |
BAV | 1,708,846 | 10,011.6 | 14,965 | 19 | 4D | 7 | 1325 | 18311 | 273 |
HLD | 1,287,483 | 5,590.8 | 12,685 | 20 | 4C | 11 | 119 | 10072 | 35 |
YCU | 1,010,070 | 2,818.7 | 9,507 | 22 | 4D | 10 | 438 | 20718 | 519 |
CIF | 660,704 | 1,801.4 | 7,533 | 42 | 3C | 3 | 567 | 10337 | 460 |
CIH | 574,080 | 919.5 | 7,230 | 12 | 4C | 6 | 410 | 22803 | 336 |
TGO | 572,719 | 1,810.7 | 8,722 | 10 | 3C | 3 | 432 | 21009 | 313 |
HLH | 266,262 | 1,649.2 | 3,532 | 29 | 3C | 5 | 52 | 8421 | 32 |
ZQZ | 24,021 | 0.7 | 544 | 6 | 4C | 3 | 521 | 20470 | 467 |
DAT | 358,910 | 1,965.1 | 14,121 | 3 | 4C | 3 | 457 | 21430 | 335 |
WUA | 470,152 | 1,438.6 | 5,864 | 7 | 3C | 5 | 189 | 24565 | 54 |
XIL | 465,949 | 2,074.0 | 18,086 | 2 | 3C | 6 | 78 | 27135 | 18 |
HDG | 230,087 | 66.4 | 8,534 | 10 | 4D | 6 | 1320 | 23936 | 979 |
SHP | 207,947 | 919.6 | 3,014 | 20 | 4D | 6 | 467 | 18013 | 300 |
ERL | 98,102 | 295.3 | 2,321 | 2 | 4C | 2 | 47 | 25801 | 7.4 |
AXF | 2,053 | 269 | 106 | 3 | 3C | 2 | 49 | 24448 | 14 |
EJN | 897 | 390 | 48 | 2 | 3C | 2 | 19 | 17293 | 3.2 |
AHF | 879 | 786 | 74 | 2 | 3C | 2 | 13 | 23867 | 2.5 |
TVS | 180,660 | 1,212.6 | 1,967 | 11 | 4C | 4 | 1958 | 26647 | 737 |
CAN | 52,450,262 | 1,309,745.5 | 394,403 | 136 | 4E | 122 | 9964 | 42,066 | 1292.68 |
SZX | 32,268,457 | 913,472.1 | 257,446 | 102 | 4F | 94 | 8198 | 44,650 | 1062 |
CSX | 16,007,212 | 117,588.7 | 137,843 | 90 | 4E | 42 | 2915 | 33,662 | 722 |
WUH | 15,706,063 | 129,450.3 | 148,524 | 91 | 4F | 78 | 4320 | 29,821 | 1012 |
SYX | 12,866,869 | 62,945.5 | 90,748 | 80 | 4E | 41 | 250 | 20,472 | 69 |
HAK | 11,935,470 | 111,813.6 | 94,436 | 61 | 4E | 33 | 629 | 24,363 | 217 |
CGO | 13,139,994 | 255,712.7 | 127,835 | 52 | 4E | 43 | 2585 | 26,600 | 919 |
LYA | 594,781 | 1,421.6 | 8695 | 15 | 4D | 9 | 1254 | 24820 | 656 |
JGS | 444,378 | 1,831.0 | 4,870 | 7 | 4C | 2 | 27 | 10309 | 16.3 |
NNY | 405,929 | 821.2 | 33,328 | 10 | 4D | 10 | 784 | 19543 | 1026 |
JDZ | 405,021 | 631.0 | 3,604 | 15 | 4C | 3 | 232 | 8912 | 159 |
CGD | 282,885 | 185.3 | 80,554 | 8 | 4C | 6 | 336 | 9629 | 576 |
FUG | 352,329 | 316.6 | 11,427 | 9 | 4C | 4 | 353 | 16686 | 760 |
NNG | 8,157,331 | 86,949.6 | 71,408 | 61 | 4E | 26 | 1343 | 20622 | 786 |
KHN | 6,811,028 | 40,389.0 | 64,029 | 52 | 4E | 47 | 1194 | 26293 | 504 |
KWL | 5,875,327 | 32,985.8 | 50,696 | 38 | 4F | 9 | 566 | 19882 | 474 |
ZUH | 2,894,357 | 22,667.1 | 44,725 | 40 | 4F | 21 | 770 | 36375 | 158 |
SWA | 2,686,007 | 17,303.8 | 32,391 | 31 | 4D | 21 | 437 | 18311 | 641 |
YIC | 83,110 | 19.9 | 1,044 | 5 | 4C | 2 | 407 | 14333 | 545 |
YIH | 900,076 | 4,628.4 | 39,444 | 20 | 4E | 11 | 1126 | 26955 | 408 |
LZH | 733,774 | 4,576.8 | 10,706 | 17 | 4D | 10 | 576 | 24293 | 376 |
ZHA | 691,443 | 2,663.4 | 12,180 | 10 | 4D | 21 | 824 | 22371 | 710 |
XFN | 601,029 | 2,151.7 | 55,014 | 10 | 4D | 11 | 844 | 19329 | 555 |
ENH | 288,449 | 623.8 | 2,652 | 6 | 4C | 8 | 221 | 16639 | 330 |
WUZ | 50,589 | 40.0 | 19,049 | 8 | 4C | 5 | 221 | 22619 | 463 |
FUO | 161,953 | 1,614.1 | 1,238 | 1 | 4C | 5 | 2531 | 38040 | 726 |
JIU | 118,353 | 578.0 | 1,848 | 4 | 4C | 3 | 573 | 23362 | 476 |
MXZ | 84,150 | 63.1 | 2,774 | 3 | 4C | 2 | 320 | 19753 | 524 |
JUZ | 222,071 | 771.4 | 1,782 | 8 | 4C | 3 | 418 | 16732 | 212 |
CGD | 29,301 | 9.8 | 694 | 4 | 4C | 2 | 465 | 19325 | 525 |
HJJ | 133,584 | 17.6 | 2,818 | 7 | 4C | 4 | 469 | 18154 | 477 |
BHY | 848,338 | 4,813.5 | 11,412 | 10 | 4D | 8 | 219 | 25029 | 154 |
PVG | 47,189,849 | 2,928,527.1 | 371,190 | 153 | 4F | 218 | 13445 | 43,851 | 2500 |
SHA | 35,599,643 | 435,115.9 | 243,916 | 91 | 4E | 66 | 13445 | 43,851 | 2500 |
KOW | 626,849 | 3,795.5 | 7,038 | 12 | 4C | 4 | 638 | 20566 | 842 |
LCX | 43,928 | 4893 | 538 | 3 | 4C | 3 | 44 | 11152 | 25 |
HGH | 22,114,103 | 368,095.3 | 190,639 | 104 | 4F | 115 | 4416 | 39310 | 880 |
XMN | 19,753,016 | 299,490.8 | 166,837 | 75 | 4E | 74 | 1557 | 41,360 | 367 |
NKG | 15,011,792 | 255,788.6 | 134,913 | 85 | 4E | 34 | 4357 | 39,881 | 818 |
TAO | 14,516,669 | 186,195.7 | 129,751 | 57 | 4E | 56 | 4013 | 35,227 | 871 |
FOC | 8,925,923 | 110,239.4 | 83,406 | 66 | 4E | 39 | 2143 | 32,130 | 728 |
TNA | 8,139,087 | 72,560.9 | 80,746 | 46 | 4E | 42 | 2892 | 35,648 | 694 |
HFE | 5,628,013 | 39,984.2 | 52,872 | 50 | 4E | 17 | 1836 | 27,775 | 761 |
NGB | 5,459,333 | 64,247.3 | 46,468 | 50 | 4E | 16 | 3111 | 41,657 | 763 |
WNZ | 6,595,929 | 59,787.1 | 58,867 | 67 | 4E | 25 | 1873 | 37,852 | 807 |
YNT | 3,635,467 | 45,319.1 | 38,252 | 29 | 4E | 12 | 2118 | 32,930 | 702 |
AQG | 117,563 | 127.9 | 2,720 | 7 | 4C | 2 | 450 | 22683 | 531 |
WUX | 3,590,188 | 87,641.6 | 31,844 | 36 | 4E | 15 | 2151 | 38,999 | 628 |
JJN | 2,634,423 | 38,771.7 | 25,102 | 30 | 4D | 15 | 1820 | 35,430 | 829 |
CZX | 1,526,605 | 15,250.7 | 19,348 | 23 | 4D | 20 | 1972 | 36946 | 468 |
WEH | 1,145,846 | 5,683.6 | 13,263 | 15 | 4D | 10 | 1020 | 31442 | 280 |
DYG | 1,006,334 | 2,301.7 | 8,557 | 29 | 4D | 10 | 228 | 16580 | 165 |
WUS | 787,455 | 2,392.1 | 8,094 | 30 | 4C | 24 | 44 | 24776 | 23 |
LYI | 767,844 | 4,100.4 | 8,539 | 10 | 4C | 3 | 1134 | 27511 | 1008 |
YIW | 1,161,463 | 3,452.7 | 10,632 | 19 | 4C | 5 | 504 | 48962 | 131 |
XUZ | 1,112,811 | 6,298.0 | 37,822 | 20 | 4D | 9 | 1885 | 32581 | 856 |
NTG | 675,660 | 21,593.4 | 30,749 | 10 | 4D | 3 | 2070 | 31059 | 729 |
YTY | 612,899 | 3,076.2 | 15,943 | 18 | 4C | 13 | 1334 | 30425 | 908 |
HYN | 610,844 | 6,912.1 | 5,208 | 17 | 4C | 8 | 1583 | 39123 | 600 |
HSN | 479,138 | 286.2 | 12,839 | 6 | 4D | 12 | 424 | 37646 | 114 |
LYG | 563,584 | 1,462.9 | 8,668 | 15 | 4D | 5 | 750 | 26600 | 440 |
TXN | 552,359 | 2,520.7 | 6,508 | 19 | 4D | 8 | 199 | 23356 | 135 |
HIA | 404,776 | 2,529.2 | 40,594 | 16 | 4C | 9 | 884 | 25456 | 480 |
YNZ | 354,251 | 3,034.6 | 3,668 | 15 | 4C | 8 | 1350 | 24119 | 721 |
JNG | 334,598 | 935.4 | 3,634 | 12 | 4C | 6 | 2892 | 25454 | 814 |
DOY | 165,606 | 570.4 | 15,850 | 8 | 4C | 7 | 875 | 33983 | 206 |
WEF | 133,815 | 16,579.3 | 3,611 | 13 | 4D | 7 | 1690 | 28386 | 918 |
JUH | 62,337 | 321 | 800 | 6 | 4C | 5 | 169 | 6456 | 140 |
CTU | 33,444,618 | 501,391.2 | 250,532 | 138 | 4F | 200 | 4574 | 29,968 | 1417 |
KMG | 29,688,297 | 293,627.7 | 255,546 | 116 | 4F | 49 | 1703 | 28,269 | 726 |
CKG | 25,272,039 | 280,149.8 | 214,574 | 106 | 4E | 85 | 5256 | 25,150 | 2970 |
KWE | 10,472,589 | 77,425.2 | 93,646 | 67 | 4E | 10 | 1155 | 23,376 | 468 |
LJG | 3,999,422 | 6,356.1 | 37,015 | 19 | 4C | 19 | 56 | 21,075 | 124 |
XNN | 3,236,417 | 19,940.1 | 28,792 | 39 | 4D | 49 | 428 | 19,444 | 222 |
JHG | 3,050,170 | 6,580.9 | 29,164 | 21 | 4D | 18 | 109 | 20,048 | 113 |
LXA | 2,296,958 | 20,967.7 | 21,035 | 20 | 4E | 14 | 125 | 21,421 | 55 |
JZH | 1,350,872 | 7583.2 | 13,592 | 4 | 4C | 5 | 0.5 | 13782 | 2.5 |
LUM | 929,540 | 4,437.7 | 9,248 | 7 | 4C | 9 | 89 | 18311 | 121 |
MIG | 917,325 | 4,856.3 | 8693 | 23 | 4D | 11 | 582 | 23100 | 464 |
TCZ | 556,769 | 410.3 | 6,254 | 5 | 4C | 3 | 43 | 20549 | 66.8 |
NGQ | 27,852 | 71.0 | 558 | 20 | 4D | 4 | 10 | 26955 | 28 |
DIG | 501,754 | 686.2 | 5,606 | 8 | 4D | 4 | 66 | 23902 | 40 |
LZO | 439,626 | 2,399.8 | 5,124 | 12 | 4C | 6 | 301 | 22821 | 425 |
YBP | 434,022 | 2,497.8 | 4,506 | 7 | 4C | 6 | 330 | 22718 | 446 |
NAO | 319,384 | 2,102.0 | 27,764 | 7 | 4C | 5 | 343 | 10302 | 630 |
WXN | 318,835 | 1,791.0 | 4,902 | 7 | 4C | 5 | 281 | 21823 | 158 |
XIC | 317,745 | 1,502.9 | 3,658 | 3 | 4D | 7 | 149 | 20052 | 74.4 |
ZYI | 309,531 | 0.2 | 3,444 | 16 | 4C | 5 | 633 | 16588 | 612 |
DLU | 501,128 | 569.0 | 5,923 | 6 | 4C | 4 | 279 | 23236 | 345 |
LZY | 258,645 | 803.2 | 2,970 | 3 | 4C | 2 | 45 | 17847 | 72 |
DAX | 248,727 | 1,597.5 | 2,874 | 5 | 4C | 2 | 411 | 18915 | 549 |
BSD | 238,265 | 354.3 | 2,822 | 2 | 4C | 2 | 181 | 21700 | 250 |
LNJ | 199,651 | 819.7 | 2,066 | 1 | 4C | 2 | 166 | 9066 | 243 |
SYM | 220,043 | 633.8 | 2,817 | 1 | 4C | 3 | 169 | 16491 | 254 |
BPX | 148,178 | 525.9 | 1,592 | 3 | 4C | 4 | 36 | 4033 | 112 |
GYS | 122,858 | 165.7 | 1,482 | 4 | 4D | 8 | 167 | 18713 | 253 |
YUS | 112,998 | 756.0 | 1,274 | 2 | 4C | 3 | 9 | 18893 | 37 |
JIQ | 95,602 | 59.5 | 1,774 | 6 | 4C | 9 | 40 | 18254 | 53.6 |
BFJ | 75,679 | 39.4 | 1,056 | 7 | 4C | 4 | 396 | 19851 | 653 |
ZAT | 72,051 | 104.4 | 886 | 1 | 4C | 2 | 131 | 18724 | 521 |
HZH | 44,324 | 17.9 | 1038 | 3 | 4C | 3 | 15 | 13860 | 53 |
PZI | 63,823 | 193.0 | 744 | 2 | 4C | 4 | 176 | 13860 | 123 |
ACX | 122,938 | 52.8 | 3,176 | 5 | 4C | 3 | 117 | 21360 | 83 |
TEN | 141,787 | 43.7 | 2,542 | 5 | 4C | 7 | 244 | 18457 | 209 |
AVA | 62,478 | 41.9 | 2,058 | 6 | 4C | 3 | 204 | 9573 | 229 |
WNH | 48,199 | 64.0 | 882 | 2 | 4C | 3 | 203 | 21080 | 351 |
JIC | 55,602 | 5.9 | 1,910 | 3 | 4C | 2 | 100 | 23295 | 46 |
LLB | 17,661 | 36 | 334 | 5 | 4C | 3 | 295 | 19981 | 397 |
RIK | 27,322 | 61.8 | 358 | 1 | 4C | 3 | 50 | 18075 | 142 |
AEB | 42,234 | 0.0 | 808 | 2 | 3C | 2 | 225 | 23305 | 347 |
KJH | 7,650 | 0.0 | 156 | 6 | 4C | 2 | 90 | 18890 | 106 |
DCY | 25,900 | 89 | 272 | 2 | 4C | 4 | 0.4 | 15311 | 3 |
XIY | 26,044,673 | 178,857.5 | 226,041 | 113 | 4F | 59 | 2549 | 33,100 | 846 |
URC | 15,359,170 | 153,275.3 | 135,874 | 81 | 4E | 93 | 1443 | 20,780 | 350 |
LHW | 5,649,605 | 41,752.4 | 51,799 | 30 | 4D | 23 | 547 | 20,767 | 362 |
INC | 4,247,843 | 29,105.0 | 39,230 | 40 | 4D | 9 | 530 | 23,776 | 203 |
UYN | 1,191,031 | 2,875.3 | 13,924 | 14 | 4C | 3 | 722 | 24140 | 335 |
KHG | 1,149,428 | 6,280.5 | 10,862 | 8 | 4D | 9 | 241 | 10722 | 397 |
KRL | 731,522 | 3,066.6 | 8,097 | 7 | 4D | 5 | 98 | 13812 | 60 |
AKU | 631,843 | 1,802.4 | 7,554 | 4 | 4C | 2 | 84 | 21840 | 237 |
YIN | 581,589 | 2,000.7 | 7,340 | 2 | 4C | 10 | 45 | 17905 | 58 |
HTN | 494,824 | 1,544.5 | 4,816 | 2 | 4D | 3 | 66 | 6927 | 201 |
JGN | 353,505 | 1,000.0 | 4,429 | 11 | 3C | 4 | 133 | 24294 | 23 |
DNH | 348,734 | 465.6 | 5,155 | 8 | 4C | 5 | 31 | 11929 | 18 |
AAT | 188,154 | 247.2 | 2,860 | 1 | 3C | 2 | 132 | 18427 | 60 |
ENY | 180,664 | 154.1 | 2,456 | 4 | 4C | 6 | 541 | 24998 | 227 |
HMI | 180,614 | 218.6 | 2,676 | 3 | 4C | 4 | 107 | 10163 | 57 |
KJI | 100,208 | 1.8 | 1,330 | 3 | 4C | 2 | 7 | 8350 | 6.5 |
IQN | 81,476 | 3.9 | 7,442 | 3 | 3C | 4 | 148 | 16661 | 221 |
GOQ | 101,321 | 511.1 | 1,265 | 3 | 4D | 2 | 116 | 23432 | 30 |
GXH | 736 | 0.4 | 52 | 2 | 4C | 3 | 56 | 15658 | 69 |
KCA | 213,325 | 267.7 | 2,988 | 1 | 4C | 2 | 51 | 20287 | 47 |
ZHY | 71,390 | 69.9 | 46,520 | 3 | 4C | 2 | 12 | 19810 | 118 |
KRY | 63,960 | 58.0 | 25,675 | 1 | 4C | 10 | 97 | 25249 | 38 |
NLT | 61,016 | 30.6 | 1,016 | 1 | 4C | 4 | 28 | 15430 | 29 |
TCG | 55,351 | 7.8 | 1,392 | 1 | 4C | 2 | 150 | 11134 | 121 |
YZY | 41,976 | 36.1 | 945 | 3 | 4C | 2 | 132 | 26955 | 119 |
TLQ | 18,876 | 0.0 | 599 | 1 | 4D | 15 | 62 | 19943 | 62 |
BPL | 48,672 | 27.2 | 2,954 | 1 | 4C | 4 | 37 | 20186 | 26 |
THQ | 15,062 | 10.3 | 647 | 1 | 4C | 3 | 192 | 17453 | 326 |
GYU | 25,633 | 20.1 | 25,037 | 3 | 4C | 2 | 90 | 18789 | 123 |
NBS | 316,465 | 76.1 | 3,954 | 8 | 4C | 6 | 268 | 25555 | 129 |
JNZ | 190,521 | 1,339.2 | 2,142 | 2 | 4C | 3 | 538 | 10946 | 312 |
NZH | 303,226 | 2,314.5 | 3,617 | 6 | 3C | 2 | 138 | 25800 | 30 |
NDG | 257,289 | 930.8 | 2,150 | 4 | 4C | 7 | 510 | 16700 | 536 |
DDG | 170,632 | 1,031.2 | 1,482 | 7 | 4E | 6 | 447 | 22000 | 244 |
OHE | 118,435 | 218.5 | 2,426 | 4 | 4C | 2 | 3 | 6989 | 15 |
HEK | 94,956 | 421.5 | 2,035 | 3 | 4C | 2 | 135 | 12100 | 167 |
LDS | 80,624 | 48.4 | 1,726 | 6 | 4C | 2 | 88 | 15370 | 114 |
CHG | 72,855 | 9.2 | 2190 | 3 | 4C | 3 | 824 | 25578 | 304 |
RLK | 189,622 | 986.8 | 2804 | 4 | 4C | 3 | 141 | 10717 | 166 |
SHE | 15106952 | 136066.1 | 92300 | 98 | 4E | 67 | 3114 | 29,340 | 822 |
DLC | 14083131 | 132330.413 | 107709 | 96 | 4E | 42 | 3281 | 30,150 | 669 |
HRB | 10,259,908 | 92,309.6 | 84532 | 83 | 4E | 41 | 2404 | 25,322 | 993 |
AOG | 6,361 | 0 | 134 | 2 | 4D | 13 | 1099 | 27097 | 364 |
CNI | 3,798 | 0 | 489 | 1 | 3C | 1 | 31 | 26301 | 8 |
CGQ | 6,733,076 | 68,031.6 | 56,850 | 44 | 4E | 32 | 2013 | 25,720 | 790 |
YNJ | 1,114,829 | 5,787.9 | 9,060 | 10 | 4C | 3 | 165 | 22013 | 65 |
DQA | 541,420 | 2,592.7 | 5,596 | 9 | 4C | 4 | 650 | 28500 | 282 |
JGD | 101,864 | 7.0 | 2,826 | 6 | 4C | 2 | 16 | 19529 | 15.6 |
JMU | 416,926 | 742.3 | 4,767 | 4 | 4C | 3 | 324 | 17863 | 255 |
JXA | 145,634 | 269.5 | 2,385 | 3 | 4C | 2 | 356 | 18100 | 186 |
IQM | 0 | 0 | 17 | 2 | 3C | 3 | 4 | 22100 | 7 |
MDG | 446644 | 1230 | 4716 | 12 | 4C | 3 | 413 | 14900 | 80.45 |
KGT | 38317 | 0 | 646 | 2 | 4C | 3 | 73 | 21418 | 113.78 |
AKA | 0 | 0 | 230 | 1 | 3C | 3 | 193 | 20734 | 263 |
YIE | 56022 | 74 | 852 | 2 | 4C | 2 | 8.8 | 13103 | 5.6 |
HZG | 91 | 0 | 0 | 3 | 4C | 5 | 352 | 14008 | 386 |
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Xia, Q., Zhang, Z., Zhang, B. (2019). Airport Role Orientation Based on Improved K-means Clustering Algorithm. In: Gui, G., Yun, L. (eds) Advanced Hybrid Information Processing. ADHIP 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 302. Springer, Cham. https://doi.org/10.1007/978-3-030-36405-2_30
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