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楼主 |
发表于 2008-3-18 13:10:54
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你好,这是我现在正在写着的程序,以上问题就在其中,请多指教
) M j" @& X- Z9 A$ ]& Zglobals[
! j. Q9 T* C9 h* D" `xmax
# ?: f/ @- s0 l u' y8 R, n8 E9 Eymax: D% @% b6 @8 @ o
global-reputation-list. ?# b9 a! _* X
+ m$ E$ m" K8 E8 z/ j;;每一个turtle的全局声誉都存在此LIST中) ^1 G; `( w7 i$ h$ \ J4 ~
credibility-list
. F5 P3 N- E% n/ B( I: Y) I' o;;每一个turtle的评价可信度& b$ A9 o* c& S" A) \8 L* s! L; |
honest-service$ [# z9 D) E& [; r" [3 {
unhonest-service9 g9 F3 [9 m" i
oscillation" q$ F3 N; T* ^; H; F; m W+ l1 J& i
rand-dynamic
$ }' u2 }9 X3 A5 \6 v& H4 I]; t5 ^2 Q' d# v8 P' g7 z/ G
1 y9 J) z" p1 L( xturtles-own[
' d6 K0 M: {* w4 c+ G; `trade-record-all+ b; X: z3 n' K
;;a list of lists,由trade-record-one组成0 H. t# V7 l2 |. _
trade-record-one9 H0 m* ?2 E9 g; z0 m
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ L8 ~" N! a9 f9 N5 O) q' z6 j; Y9 c! ]- p- A5 m
;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
) m% ^& U: G. y# o y- {( \& H# Rtrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
" _9 a6 b7 O, b4 e) |credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list% V- V }, i, q; G
neighbor-total1 l% p W* E, t. [6 E S
;;记录该turtle的邻居节点的数目
; `$ ~+ J# I5 _! Ztrade-time
: X- q" v# I& j9 V;;当前发生交易的turtle的交易时间
6 z k* n, H9 q1 }% L) t9 Eappraise-give/ J, M6 T7 y* s m' n3 i& f: h G
;;当前发生交易时给出的评价- y. W0 G. O {" o% Q) n, q3 t& [
appraise-receive' S& V% F7 U2 ^3 H" u- d+ |* @
;;当前发生交易时收到的评价* g2 Z/ |9 a9 B7 c( I/ {
appraise-time
, D( H$ N2 a" O;;当前发生交易时的评价时间% B: p! ^4 b% x) R# a0 M
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! w3 y5 u* }' S
trade-times-total
9 u- z) J! Z5 S0 o; n;;与当前turtle的交易总次数
7 Z0 W7 H- X) x8 e J$ mtrade-money-total7 Z2 v7 p! R7 S
;;与当前turtle的交易总金额
4 H, {" n# \: }1 O4 N# Olocal-reputation7 [( a" V0 E0 z7 B B
global-reputation
2 M1 A9 C6 p! ~0 N s6 W9 A/ o3 d8 Ocredibility
" a2 ^5 k$ F- w$ Y;;评价可信度,每次交易后都需要更新2 m& R+ k( I; w, O* k; w
credibility-all) j: I4 @8 k2 W5 f" M9 g2 S* t
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据6 E2 ^( O& O5 e3 ~% B
" s! u. N5 J2 O% P0 _: t;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5
3 M* k" K% a2 W) C6 e5 Ccredibility-one
! C1 Y- e: Y0 G0 `! D: C;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项# E/ D$ u, P2 {7 h- h) s2 @
global-proportion% T+ W: _' M M- I; l1 \! o
customer# y5 V4 C' T: l5 \9 X+ p
customer-no+ O/ l0 ^+ L) Q# T: E, q$ R1 y
trust-ok( m4 g9 n; b; S i" z1 O5 P
trade-record-one-len;;trade-record-one的长度! c3 N2 `' q5 T- d' H& f
]
5 ]+ V. Y/ B3 R/ `0 B9 [$ u8 J! r3 L. {6 F! |" }9 s8 ]
;;setup procedure5 L" X' `% s8 l7 M# u
8 k* ]2 E: T7 H% \% P
to setup
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ca
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0 c# i/ `$ q$ v( W! ~8 i! Ginitialize-settings- y1 {% R- K! |4 H# K1 x! k: [* P
: X4 q6 {9 y) N8 J
crt people [setup-turtles]5 n6 n: I* }: U# D! L2 h j9 e! X
. @4 b! b% O% v& b& }5 s6 k
reset-timer
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poll-class+ q" f9 p, J( W8 t5 e0 [* f
( q5 [, _! @/ w3 K& L
setup-plots
+ q$ M- N8 R9 @+ i
: G: |& ]# s# B9 i- f* wdo-plots
' U! w$ z4 c) L/ y5 Z4 _end' q& h, D0 F# h( |0 {: Q
Y3 r3 S5 i- @+ l- a1 u! Z: \
to initialize-settings' A! V% z9 L0 s
/ |! Z. E& j5 iset global-reputation-list []
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# x% v8 N t2 Y& pset credibility-list n-values people [0.5]; O* {8 W2 x! B" k* U
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set honest-service 0
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$ j% _8 @; i; r1 D8 p3 [set unhonest-service 0 ?7 {8 M& d6 T% c4 e$ n1 T
& X3 Z, k. m( T Y
set oscillation 0# b+ J, c% E- H4 a
/ z7 W' p" ]/ M0 g1 ? [, f; ^6 oset rand-dynamic 0
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1 y4 Y& I3 F1 M. h% l$ w. O4 x- e; wto setup-turtles
8 u% H# r! D- `9 ?! n6 W9 ]set shape "person"
2 Y; x* M4 u5 |+ ysetxy random-xcor random-ycor5 ` [) }: Y3 L' N8 i8 b
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
+ Q0 n9 P. K5 eset credibility-receive []1 k# b7 k% Y* w: B9 ?! x! h
set local-reputation 0.5* u d! W* J# d8 ?
set neighbor-total 0) q: X4 T m& ]0 x! d! Q; i
set trade-times-total 0; q4 b! V% u# o5 ]0 p
set trade-money-total 06 n( @; r- H `- E( x; Z* R
set customer nobody( J: a# T$ ~0 ]/ B ^! g
set credibility-all n-values people [creat-credibility]
+ Y6 _! Q. e- F) Uset credibility n-values people [-1]
+ j/ f" H9 Q; W; nget-color
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3 K- C% d' i- O( V( \; _end
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to-report creat-credibility9 R0 |) c& ?8 }9 v+ B
report n-values people [0.5]
! e0 L \' i3 b/ X% X( M$ l. V2 ^end
U% T* p1 y( I9 _6 p5 M4 ], k; A7 c7 x1 R3 A* h
to setup-plots0 S, G: D6 d: ^% ]
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set xmax 30
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set ymax 1.0' m. H, i; W! k, [
, _5 F/ l( S, T; \' j
clear-all-plots
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setup-plot1+ L$ j C* D5 B3 u5 k5 b
* q1 h4 c: V0 V2 ]0 c
setup-plot2# q# Z& M I3 G( g: b; R. U6 ^7 f0 A
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setup-plot3
; X- t, G, E, D; r/ R! Z" U- _end
% D5 g$ _, ?& S% }) X$ l6 T! C3 |9 n, y9 C2 n. B r
;;run time procedures% S/ O- D% c! ~4 J+ S$ G" b/ P
2 T4 l. ^1 X* J$ S: a2 g) Z6 s5 D- Eto go1 _0 k# _% ~- c, L i# k6 T( d9 w, |
% |- k3 R9 O) {ask turtles [do-business]
9 K5 c/ `6 t& g2 U$ Mend
5 E- ]; |0 H5 u
9 h, x" s9 S( L" j3 Z7 W' z* n1 lto do-business
. z5 s8 {: X3 Q7 p4 C2 M9 j% K. I7 I c, c! z! l
- p4 M2 B- G6 H% w( @( G$ g: X8 Q yrt random 360
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: ]$ Y' G' x3 S, E. e$ _fd 1
, [! z3 G# a$ @2 |0 ]. j. E1 ^
8 a4 n: n6 S- Y& M. g0 cifelse(other turtles-here != nobody)[
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) N* t! O u& w+ R- m- f8 R. E: Iset customer one-of other turtles-here! W4 p( z$ F: Y6 B
6 t$ d5 L' G/ b+ M;; set [customer] of customer myself" T/ n& l! _3 K# }1 A: u- W( g
3 [- D$ t! p0 k) kset [trade-record-one] of self item (([who] of customer) - 1): J, Z8 u- T& N' c. V' o
[trade-record-all]of self, }) {4 o7 r+ ^ n6 F" E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& Q* H1 o: I: p: _ K: ~; `& C7 m4 s- J+ p
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set [trade-record-one] of customer item (([who] of self) - 1) ]& N* v! f; s+ I/ Q
[trade-record-all]of customer
" T* p h! U2 {# \
3 O2 S1 f& A/ i. j- ^set [trade-record-one-len] of self length [trade-record-one] of self
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- Z7 b) W a- O6 Yset trade-record-current( list (timer) (random money-upper-limit))
7 r8 ~3 n( \, S
8 S& v, `. D4 V7 U* o8 rask self [do-trust]' l7 C7 R7 e' H. X6 g
;;先求i对j的信任度8 n5 E6 |( K0 y; E# S
4 Q; X" I( J2 V- w+ c; G) B* jif ([trust-ok] of self)
5 m. t/ ^# G, `* n;;根据i对j的信任度来决定是否与j进行交易[. ? O" a6 ~( [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; G; `" L& P( E! O/ y
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[9 L6 y$ H: C$ d! C
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do-trade
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update-credibility-ijl9 h$ `# ]- [7 P( J
+ c+ c( n: l% S O0 Dupdate-credibility-list. F0 z) ~; n1 j0 y4 m: g: c
[8 F, l3 V) c* r6 {
% ~' I/ {' a% [2 F: H9 f
update-global-reputation-list
: k; c- W. q4 C7 f* @9 V3 x7 Z$ a6 {2 `7 ?7 x; m$ f k
poll-class, b. L/ m) |7 Z) t
% O6 o3 I* {7 m2 a
get-color' U Y! S! m6 D: |8 c" _2 n7 w
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]]* a4 o V. X+ u6 X, W& {
" E) u" W- d3 j( d' a0 `5 k2 m: P6 F;;如果所得的信任度满足条件,则进行交易
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[
( K! e: X5 [3 b5 d6 F2 E/ c+ [
# [+ L5 e: O2 P& x" _8 art random 360
+ C! q% l0 ~ h1 a* ]( E* r
! Y2 q% V* R& v- sfd 1
# y+ y9 l* o/ I a* Q, W9 D ], w- H: ^; ^0 H8 F
]
$ {! [! X$ K) N5 k% s6 ]5 V
: b% Y- U4 [; tend
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' Q+ E9 P9 T) C% M% o, F, vto do-trust 8 J; ?+ h8 R; k$ B2 [& C. e
set trust-ok False* C7 p9 d1 j( d
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# e& V6 B# D7 y s) Alet max-trade-times 03 P1 W$ ]" Z+ [; D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' ]$ r& M! P* U! ]. c' X/ T5 ?
let max-trade-money 0
& L% e7 ~$ A) `! H6 u7 A1 Tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 J: s- C; I# `6 F$ U! L! k
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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get-global-proportion1 J! t O9 ]2 l _) z' d% o3 z5 D
let trust-value; b& f: y+ |7 `& I( v* `
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list); ~; a$ @1 F% p6 J: T* I5 Z
if(trust-value > trade-trust-value)
2 h! }+ c' `+ ?9 x' a# Z[set trust-ok true]
& O f% W; a) k6 |! u. O$ Pend
" d: ], H1 ~+ q5 x6 _) J6 Y+ Y
to get-global-proportion
2 }6 s% t+ N2 } [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
L0 |, C" u. ~6 O[set global-proportion 0]
* t2 C7 E2 F; W2 |/ x9 g[let i 0 R/ f X& c. ~0 p4 `
let sum-money 0
7 K" B+ A$ m+ G* S3 }5 m; |& wwhile[ i < people]7 |; f) ]/ f8 I. m
[; ?' |! O" v w U6 l1 j+ }
if( length (item i
9 ^# ~' ?) _4 _[trade-record-all] of customer) > 3 )
% }% Z( L) P% {' H- x[9 E/ [3 _( ~' K3 P2 Y' b
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]1 R$ C0 X/ _5 \! g1 C& c
let j 0- L- a, S) `% a+ O$ n; {- f
let note 0
: y2 S; X6 G, Hwhile[ j < people]
0 c, y; G% O$ ~[3 G$ A2 z( `" [, L( a
if( length (item i( B/ |" B0 w" v) V1 d3 M7 N
[trade-record-all] of customer) > 3 )' W/ F& p. L3 q1 m \+ c
[
8 I8 `8 C$ r& i+ i0 D0 |8 L G2 yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ j: a7 E- f( }( B& [! l* M[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 j& w+ W1 w* t$ b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ N+ l& ?( p; [* g]% F3 E, h, J$ N4 ^# s
]0 n9 b- Y7 s- g. Z) P# |
set global-proportion note% R1 B% n5 X0 ?/ f
]
' O8 N1 D2 r; B* send: O4 z! S9 L# H/ _) t$ |
/ g& d' f- c& {3 ~2 i
to do-trade! x9 B5 R/ L5 F1 A |
;;这个过程实际上是给双方作出评价的过程
' E' M. h, k* ?+ s7 F; } nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
j( Y3 p! }; @5 R3 F7 E% ^$ T7 \set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 N' P5 _. y2 x2 p3 T ^
set trade-record-current lput(timer) trade-record-current+ _- V# G& M5 W; J& l7 u3 }
;;评价时间8 E f6 V4 H- y+ l. X
ask myself [; B) V. [) H$ c7 D4 P; }
update-local-reputation" Y& L, |, h9 W7 [' m
set trade-record-current lput([local-reputation] of myself) trade-record-current* P; L; ~; ?, h) c- Q% {4 Q
]
3 P0 }8 N2 N, j# }2 }set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" \2 d1 t6 R. j' {# }; q/ U
;;将此次交易的记录加入到trade-record-one中1 Y6 D, E2 r) m8 f9 I+ [/ i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
. P5 K0 c) A5 C% b1 }( jlet note (item 2 trade-record-current )' R1 j" G- M3 Q- Y& Z+ ~
set trade-record-current
9 B; q' m/ \. V! y3 B# }(replace-item 2 trade-record-current (item 3 trade-record-current))
& s0 c2 I5 _2 z7 l; G0 N; |set trade-record-current
& |. ~( {0 n1 F6 }6 B(replace-item 3 trade-record-current note)4 J+ R0 i. g# ?9 X5 o3 T
5 P8 G8 p8 G$ S3 o( o5 l& n* {; x/ L
: J' [$ c$ M5 B3 J: Hask customer [ m( m1 ^1 t6 N
update-local-reputation
+ h0 F5 @+ `% }% Bset trade-record-current
$ H; E7 W, C! j7 I(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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! R# [5 _) v* }. T/ Iset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ H& f+ W3 w i
;;将此次交易的记录加入到customer的trade-record-all中2 C ^% z) V$ {
end8 N" T% G7 O) v+ P5 X \8 b |( e8 O
8 V* k/ d/ C7 |% o1 O$ Z3 [
to update-local-reputation
, j) F: O3 m2 {% x6 i" `set [trade-record-one-len] of myself length [trade-record-one] of myself K8 ^9 K3 w6 k+ V5 Q9 D
# p9 Y2 H2 }) n7 V7 B4 E
% B, R2 t8 G; Y% ^/ C
;;if [trade-record-one-len] of myself > 3
' X ^" a1 {) nupdate-neighbor-total
) w/ e7 g, g. a; B4 Y: A" |5 M( s;;更新邻居节点的数目,在此进行
% m; R6 s" \9 [# ]. D, Glet i 3
9 S* @" O( u$ e' l7 v z; ?let sum-time 0
6 M) ~3 g6 ]" _* a8 x3 [while[i < [trade-record-one-len] of myself]1 B5 A4 d' I0 z8 U& S6 W* W$ y
[/ X* h% R R1 |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) U' x" w( Z3 c0 R
set i
- i% m t" N8 s( i + 1)
2 E+ M6 y* w, w' l! R' F- x2 @] H) F2 Z0 O u& b/ |* e
let j 3
1 w3 u/ P3 A+ Ilet sum-money 0
0 A8 U. H$ J+ q5 n2 o: @while[j < [trade-record-one-len] of myself]
2 G% s# E6 [+ N/ f[
2 p) ^' ?( ~( ~: ~# h8 Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& W! {' d7 Y( \- L# a2 m* P6 Jset j H, ^# f+ p: d) u. p; \# s1 _
( j + 1)5 `( `0 k7 R c; K
]4 _1 |: G& }6 {" F$ {* O5 ~, _
let k 3% V }& x6 ?4 _7 y8 O( e. J. w, h
let power 0; W1 L4 v. E" [/ z
let local 0
9 h9 y0 i/ F0 n, F, n0 ~while [k <[trade-record-one-len] of myself]$ b' W. V/ L- r6 H6 b% v
[
( b0 o0 E2 v& Z) Z( ?set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) $ v( Y6 ?8 f) r7 X
set k (k + 1)* Q% Q0 d, N4 n3 N+ `
]
7 O$ o M7 x! C) C' N, `set [local-reputation] of myself (local)& y; w# X/ T1 g( B
end9 P6 Z: v9 U% y8 b
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to update-neighbor-total* e6 F) L& o9 s% Q7 r
4 o% A* g! c# v- p$ w5 [( R
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# X$ O' F9 [3 N
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% f$ L6 Z" d$ s+ S7 _
end, u+ ?' F4 Y& ]
# l0 l6 R# i. |1 j" n8 ?to update-credibility-ijl
% I1 a" H& [$ R' a9 ?2 x) O: R3 o- | W! p g0 I1 P
;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。
) O$ g2 p) _1 alet l 0
" T" Z. m' w; z xwhile[ l < people ]9 \! r# u1 H4 L5 u% G5 N
;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& E. [9 F% G- _- ^" u
if (trade-record-one-j-l-len > 3): \8 `7 x g+ y7 T, M# j
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one5 K9 B7 }( t5 v5 s9 S' P9 }( f7 W
let i 3% \$ {2 o i) T
let sum-time 0
2 b/ m+ C8 H' F: Bwhile[i < trade-record-one-len]
/ \3 d H& N: g% p$ d[# L8 \7 q% a* [
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ D5 c! ]1 s. F. Z: |+ jset i
8 m8 d7 C( I! H. m2 W8 c% F( i + 1)3 @& c' ?$ K& F, \- v
]
3 e9 y8 m. B2 X0 Y+ z0 slet credibility-i-j-l 08 b3 V* ]$ ~' S+ N
;;i评价(j对jl的评价)0 o4 _6 |, o- m, g* \
let j 3
5 R8 L& Y) i! f5 B* L1 z6 M( F- Nlet k 4
9 J) I! {( J' Y3 E ]8 t2 S: F' Xwhile[j < trade-record-one-len]
$ n4 J S; `7 T[$ ^: U3 e$ x: v+ x9 ]
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
. M9 _+ o: r" U$ w) vset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)1 J7 N/ V' O4 h
set j
2 T7 @. r5 [4 ~9 M* t. D( j + 1)" ?5 N: N& K, D" d& l8 z" a
]: r8 ~8 {, n5 s- k9 A/ w
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))% A) \7 Q7 k) @/ `6 p/ u5 L$ q
- @ w2 E! R# {0 H N# H$ ^5 {' u) V+ i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' i" p0 o# L5 C+ M8 r;;及时更新i对l的评价质量的评价6 A r1 y* q1 [3 w8 Z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' ^, D, A& G: F& z6 ?7 qset l (l + 1)
% q/ f% X' n; v& P5 z2 d0 Z]
, {/ a( h0 u8 A8 V/ _end& c. v4 Q3 s0 @* Y# M. f. M
! {; H) F5 _, P0 O7 i% tto update-credibility-list$ ]* |+ b! ? u
let i 03 r. k& D, R# s! @ W2 A
while[i < people]
3 [+ J8 b* ?4 F \/ U( i1 ^[
" Y7 p9 x& g- u: tlet j 0, q8 R$ W7 H) S* A% T- o
let note 0# d& `% C: j) U8 a
let k 03 d Y, u/ F: l8 }1 h+ o, K; M
;;计作出过评价的邻居节点的数目& P& j, P' X/ g
while[j < people]
8 [$ O- L5 y8 k5 {. ][
1 I& A& b% L6 c# j2 f" gif (item j( [credibility] of turtle (i + 1)) != -1)
0 C0 F: [, B$ u, ]4 J9 ^;;判断是否给本turtle的评价质量做出过评价的节点 C7 C2 `! q) O. ^# v
[set note (note + item j ([credibility]of turtle (i + 1)))
1 M; G5 M: ]- }% S, B o;;*(exp (-(people - 2)))/(people - 2))]
2 S ?1 R$ n& G9 | X- e# V: Hset k (k + 1)2 P6 }- x. {+ t5 h# U
]$ X1 o% l# o4 _8 z9 p9 `* q
set j (j + 1)
o# {( a' m' Y2 T, T: x]
N8 e! k- f; F3 F3 ^0 ^ ?% n) eset note (note *(exp (- (1 / k)))/ k)9 A( [" L0 ~) W% f Y; E
set credibility-list (replace-item i credibility-list note)
& _# ?0 ?- T2 r, B" R8 Eset i (i + 1). |$ O/ d! Q3 ?: \1 y
]9 j9 H" J! I3 ~; u
end
4 k! y- ~. A+ H4 m& g* h/ A- |; {0 |$ m/ {) x' I3 u% O
to update-global-reputation-list1 h" Y( i: \5 A- P2 [! o
let j 0% j0 t+ Q, j5 S8 S
while[j < people]
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let new 0. v6 f; _( R* v& ]' ~ e
;;暂存新的一个全局声誉
& @% B q3 }6 Z* k. d8 d$ Xlet i 0
4 C( E( ^( K2 blet sum-money 0; h3 _, N$ O! t/ j+ [/ W+ X
let credibility-money 0
9 P: Q: `% m2 ^& T" `while [i < people] Q7 a5 h: L% f% h
[6 x9 E! F v6 J e f, ~* u
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, x, t* a1 x$ X) Rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 A1 U7 ~. B; o7 y3 D; O1 `set i (i + 1)
5 V, d2 k4 j5 t- m0 u6 Y" `]
6 F# u7 v' [- d8 o$ o9 olet k 0+ J1 W- P! y1 J9 y, W% d' \
let new1 0
/ W# _, x. _8 X) \: Pwhile [k < people]3 k( [5 G7 t0 J) |- E
[3 |8 Q; H Q. F9 Y4 H- L7 w
set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)) b- ]+ P! {8 c0 R4 F
set k (k + 1)
7 x y2 n5 J6 R9 u]2 R4 V/ V9 ^2 G8 j, ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ h: | X2 \: w# }0 [7 Q8 x$ ?( @set global-reputation-list (replace-item j global-reputation-list new)
l7 [9 W$ B. ]set j (j + 1)# L! p" ~8 k6 {( a7 p* j
]
! b2 Q$ U0 X5 L! f; `; u$ ]! fend# |2 p! ?# F9 J
0 t" Y1 z2 y6 R& B7 D" I6 v1 H" c' ~. L+ O( ?
. b: d) D4 O- S- {7 W4 q/ @) W) L
to get-color# P! ]; r+ n, f" F9 e \7 G
+ G: `! ?, h0 r5 J) h: p! ]set color blue
1 n, N/ N/ t/ J) M% eend# f4 A& c3 C7 y; F M
: M9 D9 h- S9 b0 N! @* f! r0 T
to poll-class
) ]' v @: i, U, e* ~! q; Dend
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0 b* J! G/ L' w' oto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
$ l6 M4 I9 o4 X8 [! c9 W3 p z" X4 d
set-plot-y-range 0.0 ymax' }" x( Z7 P. a" g
end+ N; E; b$ }9 I) x6 N U0 w9 J
9 v) v$ U* ?2 G( t$ x+ g% b. O8 J1 j
to setup-plot29 i4 n% y/ O" `# q8 q! n' _
5 z% l/ b( Z# f& k1 u2 Oset-current-plot "Trends-of-global-reputation"# @" T9 O9 t8 w, W$ Q# y4 q6 z2 J; M
' _5 q8 F* r# C6 \% Iset-plot-x-range 0 xmax: A# m& T$ ~8 d7 V3 F
8 f0 |6 s" `: g" z" p8 mset-plot-y-range 0.0 ymax
, X6 @" J# n6 M2 z5 [end+ h, u+ @6 _' x/ q. i" I2 w3 l
3 A+ }% K7 i& N: W) E {0 v. X2 c9 z
to setup-plot3
$ X; r! b6 C; C+ A
" z: k# m3 b: V: n% lset-current-plot "Trends-of-credibility"
5 W6 Q I6 p" i8 R4 v8 k
) D7 w( d- N0 ]) }, y% ^set-plot-x-range 0 xmax
1 I o( r* w9 N6 l; E x4 A
. }9 U \9 j7 aset-plot-y-range 0.0 ymax
0 E" D0 a5 g- [) G5 d/ q- V/ iend
; N3 P+ Q7 j6 ?
$ C( O* \; F, R6 m" H6 |6 ato do-plots( x9 `$ {9 ^, k1 R. P4 R2 x
set-current-plot "Trends-of-Local-reputation"$ O' ?: _( l) q1 Q2 d, m- E2 v
set-current-plot-pen "Honest service"
1 n0 v# m+ T w( W8 Bend, ~4 D! p* g- d" g% K0 t
' F9 f. L3 g% @[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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