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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8 X0 z5 N& \ W1 r* a' a c: c
globals[
/ t, \3 \9 z- _' Y( y* k; kxmax
; @9 I$ c1 ?# O( ]ymax
5 f$ X( R; n! k c0 ^0 U1 Hglobal-reputation-list P0 O) s5 G7 ^
; b; Q8 a1 o- s O- l
;;每一个turtle的全局声誉都存在此LIST中
5 l" C8 n8 n. V/ F( \credibility-list( U! T$ z) A3 k% A
;;每一个turtle的评价可信度7 b. ^& x [8 g* l, ^6 f
honest-service, t1 [' o* I, s9 w% @. }
unhonest-service
% P' m: g+ t7 ?oscillation. q# a$ g' A* H7 G/ i; f; m
rand-dynamic- e6 o* D3 A) o0 E; {; R
]
+ m5 ~: s# ]1 _5 K, f6 B# i
4 Y' h" M& I2 T/ sturtles-own[
1 I! g3 ?( d2 S; b1 xtrade-record-all
: c7 {% Y9 Y, n, K! L4 N;;a list of lists,由trade-record-one组成
4 t+ {6 [. I7 i3 ~trade-record-one
2 ~! U* a* F/ Z% \4 F- f;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% W; N) P1 H* P* u1 A
: z" q6 p5 F4 p; E, J;;[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]]
5 o) X7 i. z! L: P1 |) N0 w" Z& etrade-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]
! p4 t& [% g8 N: H" h* w/ vcredibility-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: y# u* d2 S8 v# c. uneighbor-total
* c2 E8 K" R& \3 H4 N# E7 M6 G, L8 Q;;记录该turtle的邻居节点的数目1 ]0 [8 ]5 d6 v/ h0 K0 E# r$ O
trade-time/ ?7 }/ \, ^( W
;;当前发生交易的turtle的交易时间
1 ~) s# t0 h3 happraise-give+ q6 j) f& b1 f9 Q2 J' {
;;当前发生交易时给出的评价0 I0 k+ v2 ^" j& G5 K; d0 |
appraise-receive
, V+ Z7 ]5 I0 m;;当前发生交易时收到的评价4 `/ H9 r& k2 {$ ?, N) q/ j
appraise-time" {! S7 P% H u9 F! Z3 F
;;当前发生交易时的评价时间2 `( V v p3 r* j: y- K5 C- ^* ~
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 f3 m) E5 Q5 a, s8 ~
trade-times-total# g) Z! h S ?: Y: c( |
;;与当前turtle的交易总次数7 e( n1 r2 g4 Y# P
trade-money-total% E5 N6 @( {% d" J( ?; T
;;与当前turtle的交易总金额
# T" q& r7 ?$ g0 a9 Plocal-reputation8 Z1 ]% F$ z) A+ T3 g) Q. A z
global-reputation; r: s g) Z& ^( z: ]; W) T; b
credibility
# t4 P' e+ i% k6 X* ];;评价可信度,每次交易后都需要更新
" B; W2 V- m0 N9 m8 b! Fcredibility-all$ S: f$ n" c- ^! ]0 [
;;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; U. }% e# G( e t
2 d! e9 Z3 d& g$ J7 Q( N3 I, ^/ I
;;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0.55 c/ _, B$ z7 U% G0 l D
credibility-one) ?7 R O" J* I3 q7 P0 x, ~* u
;;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
( C4 ?$ |7 O2 i! J8 ?$ l' }global-proportion" p2 @% r. S& m: A" \& ^
customer" ~( k9 P& i+ Y8 B4 N6 u* J* N% S
customer-no% W5 g, n( J5 S5 Q; P9 U3 ?1 a0 U2 Y
trust-ok
7 B/ K! |# q, e: Q) k {7 htrade-record-one-len;;trade-record-one的长度
5 T3 v, D ~+ i" _]" T/ \9 ~7 L R, @" A" p4 h
* f; j' X0 X. c' _( R; _ f
;;setup procedure$ ?3 O* l( n0 f" w1 ^) g/ `
; l) j1 n. s$ R5 ^0 y- Ato setup+ s" E. ^8 K6 B3 ]
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ca
5 Q1 ]- L D: t- S0 U7 |3 T2 i( _' \, ~2 w# O- J. v7 N# @
initialize-settings
Q4 ]# e2 F3 |+ X- C1 c7 w/ j% s
2 S7 |; G* y2 v$ R, g! Pcrt people [setup-turtles]
6 H5 s" v, Q( E; {
; F, G) S. C. A# hreset-timer, r- ~2 j% Z) j0 {0 \
" A$ g6 ^$ e8 C$ {5 E1 t9 w; apoll-class, u7 u9 p ~* o" o# ^1 I- D9 z# u& F
) h- F- x3 f0 A, K. D* Osetup-plots2 r6 E6 Q3 ~/ o' x
a$ ~1 d/ C7 z) F: M
do-plots1 \/ O* Q, C. q J6 U3 B+ R
end
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to initialize-settings" m7 u/ W- ~$ g! O1 \' K8 ^
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set global-reputation-list []
+ {4 n7 k' N" H- K. r, \- I2 k3 _% |% U% z
set credibility-list n-values people [0.5]
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set honest-service 0
6 g! k, T! n. G* i) a; i0 Z0 g* k" Z0 [
3 K6 v4 M$ a" q3 i2 u1 F" D6 pset unhonest-service 04 M- R5 n+ W/ Q% {# z
& Y6 u* P- i d `6 X1 R7 h Q" K) iset oscillation 0$ a$ W, f p+ I# q) R. r
$ P3 N3 K9 y3 Y9 \( t1 Tset rand-dynamic 0
& y& Y1 ~# I( i* f2 R0 mend
0 l: [# {$ _# U* u# |
- P& M5 K$ ~) J, V% q3 [( Qto setup-turtles
7 Y0 l0 [; m: n! Z- \5 I3 Z; lset shape "person"" v& \( m8 V6 p- Y+ X, W
setxy random-xcor random-ycor& t4 h K9 D) Z2 y8 X
set trade-record-one []
% d: c7 L. w `2 g
9 W# j0 T( V$ N5 D* Y4 Yset trade-record-all n-values people [(list (? + 1) 0 0)]
. R6 i+ P1 Z) R0 ]4 O* g/ I$ `6 r" Y o' N) |
set trade-record-current []
1 T8 e6 [4 c7 {- n" Mset credibility-receive []9 G% x/ q0 J" Q) n, F ]1 T# z
set local-reputation 0.5
. n5 N+ `* f5 o9 [. e% a u, |& fset neighbor-total 0/ k! u. f, p8 M1 x7 Y `
set trade-times-total 09 j. v7 v" V/ S( a. x: l
set trade-money-total 0
6 h% F5 l3 y% g! \0 K6 R5 i gset customer nobody
& b; s: _, D; zset credibility-all n-values people [creat-credibility]8 T+ [) d! k/ ^& Z
set credibility n-values people [-1]
$ A' I! M/ G( Uget-color
$ ]# U: F3 A% R! I D) e. c Z5 T. |/ E/ R
end0 V1 ^0 I' r: j1 g) o
0 _4 q F! M- ? S- D Eto-report creat-credibility5 w. ?; K% w9 n
report n-values people [0.5]$ B+ [. ` e# ~9 j9 \- r0 C& I
end5 l1 E( p" k8 v d \; l& S- Q
/ _4 o( ^% d" L+ ~5 c- |to setup-plots9 _- X# V2 C8 j7 Q7 }7 R% D. ]0 ~
! \* R ?; g$ c1 zset xmax 30' {- F8 v- Q6 }
+ z. w# j# o [1 c
set ymax 1.0
8 {' }+ G3 O7 A' v& g8 \2 z B, Y; C- G- q: { _, u6 u
clear-all-plots
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. ^1 @" W* m- u5 z. e7 ysetup-plot1
* K) f: F8 j* |/ v1 K9 C4 q+ @3 C" W3 Y: n2 v+ ?: Y
setup-plot29 U% y$ |2 {( K2 u/ N8 n5 q
+ p: F0 D- k) h; l: D! [, _setup-plot30 k3 p1 d5 O7 u* V1 }- [ P
end
2 q6 u' f3 \2 A8 s) i1 v \, r: I, `4 g% `8 d1 E8 t6 z
;;run time procedures, p4 L, Q, [6 D, E4 y' L" s
4 c# T& s" G* _ lto go7 J# R% Z, n6 h& t# x5 w
3 @3 D: U- n9 a; K4 _
ask turtles [do-business]) u3 S5 x' R: j
end! ]8 d2 Z2 @$ [5 ~3 F, r$ V
$ m! l) D) X/ ~2 C" Q( ato do-business : T% Z; K B5 K! E# @% E$ x
* U: r6 R9 W, \8 u4 k6 b% b+ ?
rt random 360
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( T0 j, a x) Z( qfd 1- \' I+ I9 i1 d/ E2 K" x
! U/ ]" W0 S! a0 S+ G- W
ifelse(other turtles-here != nobody)[5 U% y6 x3 }; g, s$ i
6 B1 \/ O: {, Y lset customer one-of other turtles-here
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;; set [customer] of customer myself" s1 T3 O3 }7 w8 M0 n4 j
; S8 A& ] f- @% E* D$ D- [
set [trade-record-one] of self item (([who] of customer) - 1)
% f7 o' y6 @% A _. |[trade-record-all]of self5 ?) ~( i, C$ b C% ~$ P }6 \! V6 s' z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# ]$ r2 f* I5 g4 a0 g3 P
: k) l* P0 ^# h! q1 x* Z0 ~
set [trade-record-one] of customer item (([who] of self) - 1)& ?6 R8 n4 j. S" ~6 E; y# p0 u
[trade-record-all]of customer# L" b) i+ F; \2 W$ M
8 I' L- l' n/ Y) \: H# d* I7 ]$ U; oset [trade-record-one-len] of self length [trade-record-one] of self
4 e3 ^; N" Q6 S" \- o9 K3 O* @3 O% S) O) Y$ y
set trade-record-current( list (timer) (random money-upper-limit))
6 A1 J9 p4 T( k2 i* o) \; m, K% l$ u i6 n, V; Y: ~ _- Y0 E8 k" }
ask self [do-trust]
" G5 e: n' K z( ^* S;;先求i对j的信任度, c7 c# u) ]# |# @2 Q
& a3 U5 T- @2 n
if ([trust-ok] of self)$ {7 H* W; H) \, f
;;根据i对j的信任度来决定是否与j进行交易[
/ |6 d0 A) d* X, T9 vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: y1 v! F4 A, D& }: I$ q
( v8 k. r7 X; @& z% v4 B[
7 @* _5 j# s1 O3 [* ^6 N" ~6 ?8 s# u* l
do-trade
$ Y0 C2 U, j* o: E" W4 h9 a9 y; P/ n
. e, I! e" `2 Uupdate-credibility-ijl
0 x* |2 w. [( u! J
" g% P8 H* r$ Kupdate-credibility-list
- ]6 V7 K3 k9 K8 M* t g. r$ @; k Z" S. G* O
# ?4 p) }6 C" F5 N k
update-global-reputation-list+ p3 f% u# }0 _1 x' g# Q9 \
5 j5 O1 u2 P c2 U
poll-class- ^1 k- c: j/ }( y, k/ r
& R6 _6 `! j; H9 vget-color
5 h8 O. T$ d6 O2 \$ ~
/ D& G: E* K, A& }$ Y6 n! g2 R]]
% D' z% u+ p4 p, C; Q% Y& y% z! b
) q( t! ~* n, u3 B" i% k;;如果所得的信任度满足条件,则进行交易
8 R" B: ]* \- N) d9 L5 X
7 t% Q6 T5 C) X" F: V0 g% G/ S$ X[7 X+ s$ w! K# ? M- f% V- p2 R
, D! l v# O. x4 T
rt random 3608 _( i2 Z! t: E* c
7 {& x0 Y2 @4 I5 P5 L8 o8 tfd 1
- K9 D* E" l9 G. U7 D1 \ e W7 X- N T
]' B! g/ x" B( _
2 C% Q4 K' }0 V7 Y7 Iend
; j9 ?$ K, B( N: {4 ^4 B9 x, J( d+ J+ J4 T
to do-trust
2 Y' W: t" v* u& Jset trust-ok False
1 F [' r3 `+ Q+ L* c/ p$ R2 ?8 q; R A3 I% [) u
c( S8 {; g" q' w
let max-trade-times 0/ Z7 x/ `! h2 i& d3 ~1 a
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ l3 d4 R; g) T2 ~" K6 [
let max-trade-money 03 j D2 e: w1 g1 L/ O" z
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 q2 ~& [) N& ~0 D
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 m4 d6 D6 B/ g7 l, h6 S z# C. u* ~ A
6 T) E, f. H8 |8 t4 r4 c( u( ~. F
# h F5 _, O. t! _2 O: j* t2 Vget-global-proportion
& @; A. u4 O7 o& T2 i/ Klet trust-value, ^: }% \& G: O
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)
* Y! d; n1 M9 d+ K6 lif(trust-value > trade-trust-value)
& v' x2 p" H4 ~, }7 Q[set trust-ok true]" y. t% u: s( p
end; h! F6 a, N4 K h% V
$ v) w" {/ n" w
to get-global-proportion
1 ?+ x. ?; K7 X0 t& k4 p0 Pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 _" |% e( w$ O$ O[set global-proportion 0]8 X/ t( A5 q- s+ b) E: N
[let i 01 {4 N7 P' K6 Y. M* h! }6 @4 o
let sum-money 0
/ b" t( S, v% j5 L* I* v' twhile[ i < people], J2 c* \4 ^, Z \
[+ `) e3 ^) t: C' O6 m. |1 t8 c0 Q
if( length (item i5 Q, ^3 @# Q w9 C
[trade-record-all] of customer) > 3 )5 E/ Y6 g; c9 P/ T# V
[
4 H4 `$ B' g' _* {4 ^set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 Z& n% B* T4 C% q]( G9 k7 N# f7 J# p3 g
]% u) v- @8 G! V5 Z
let j 09 u; M1 s5 X ?0 z
let note 0
- R8 _2 R% u, u* bwhile[ j < people]1 s; w$ y9 A* |, ~8 O9 E/ R6 o, W
[
1 z J1 \2 y) q2 Oif( length (item i8 c5 @" ?5 D" f" L& ^* {
[trade-record-all] of customer) > 3 )
3 J. b$ _2 K# \) H[, }: E' t, [4 C0 l; f5 j
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) ]; ~8 p" T, O2 o
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 F1 Z3 H' K* `
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* r8 X( b, ^) S0 {* m! P' X
]
7 N4 G: q8 O* r+ f: Q$ w]; [/ r, Q+ f# Q0 [
set global-proportion note* @6 y6 C) x& H1 z: Z' g- }* R$ ~
]8 s& t+ e- t3 O2 O2 Z
end
, F: i3 P {# P# U1 Y# j- U ]- i; u U& V+ h
to do-trade: D; G+ _" z3 C8 U" T: ]# t
;;这个过程实际上是给双方作出评价的过程
: L/ j/ T: o0 E% L% G4 }& Y3 Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: F* h: Y7 W+ `; Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ k3 _. D5 z' f( q
set trade-record-current lput(timer) trade-record-current% B& [! \7 T: m9 x4 W! H0 `
;;评价时间& o$ O+ \, U' W7 Y1 W4 _
ask myself [
1 T& W: R# M. J. {# y; Dupdate-local-reputation: W* C# _/ D: H' u- K
set trade-record-current lput([local-reputation] of myself) trade-record-current5 O1 y' h9 v6 y6 `# ^$ A
]; z8 w5 l7 \! [5 `" q7 d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ p( ]4 F3 J4 n" M' {;;将此次交易的记录加入到trade-record-one中
& I& B4 N9 o& f! u5 Z0 a0 wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 J. k1 ]; b5 U. {' r [
let note (item 2 trade-record-current )
! B6 {4 e7 k& W; `! A& g9 s3 q, ? r# ^set trade-record-current
& z! V: x1 Q4 }' P! D(replace-item 2 trade-record-current (item 3 trade-record-current))" F- |! p a4 M t, b
set trade-record-current
, [2 R& w$ G N: r2 [# W) P(replace-item 3 trade-record-current note)
! L8 v# e" I7 ~3 i0 O5 a* V' R8 l6 s% a# T
$ f9 Z- i+ D- _9 N
ask customer [
5 j8 F0 v# R! H# F% c: D7 Yupdate-local-reputation
! ?% i/ Z7 a$ B) ?, dset trade-record-current& k4 }( n) ]: K2 }9 i6 v# Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % b7 R8 t; z3 Z) p; ?9 L
]' C. \# r2 k5 T }, \; H
$ w: s( C6 w C# b# j3 l x& h8 F4 A$ k5 X1 Z3 W4 _0 K4 y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 y& b' P; Q, t* c
/ `- v% r" z0 `* @7 @" w3 j+ c
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" L$ t. p1 u* W& h- [
;;将此次交易的记录加入到customer的trade-record-all中) ^: m9 ~1 X/ T* z- S- M
end
' `1 Y* K& a: d
/ \5 C t! p. F$ z q# _& ^to update-local-reputation
+ T! Y7 m; v! |$ {& g7 W( w) Jset [trade-record-one-len] of myself length [trade-record-one] of myself
8 s0 `% F* |8 ?
# a% Q, G3 y, P! I: |! [
' C- K, ~& z8 x, Y;;if [trade-record-one-len] of myself > 3 " `7 k, ~0 N+ E# x
update-neighbor-total
& `$ ^! q* H) U: N7 D1 e6 B1 V1 Q;;更新邻居节点的数目,在此进行
2 { }! }, S) x3 Z2 alet i 3/ n. P1 O" u- L4 |5 k
let sum-time 0( [9 I: _: H0 Q& r' {. \( \" d
while[i < [trade-record-one-len] of myself]9 A8 J5 L4 [( i9 @
[( Q5 q7 [6 }0 K* c
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), D( Z* z3 O# P) j' x
set i9 F T" \! y1 P: v; j( p
( i + 1)* w3 ?6 S# ]" C9 J/ S+ Z
]4 J- `' F) }' K c
let j 3
% a; v% o: f; wlet sum-money 07 @+ R! ]. X. p
while[j < [trade-record-one-len] of myself]; F0 D4 D& p% L8 S8 t
[: q% K; M1 a: p0 m1 Y3 m2 U! B
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& S& G* p+ b) a. Eset j2 \+ t6 J+ l0 [* i( ]$ ~
( j + 1)
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0 V; k1 t7 I; l# J5 A& ^let k 3! g/ I- M5 O! ?9 s; Y, x+ m
let power 0' o& ?( Z: T1 ~
let local 0
; X- }. h0 f% Q1 Vwhile [k <[trade-record-one-len] of myself]: W- g6 R! `5 e6 v
[$ u# E' K* |/ z" Q* }5 m S+ e
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)
6 C* e( ]+ b8 `. Y( jset k (k + 1)
9 d3 r3 I& J- n. n]
1 e, j- S ^ C, H% Yset [local-reputation] of myself (local)2 E% p! ~0 B7 `5 h+ E# D" b7 M; M
end( ~ Q6 W9 M0 I+ V* d
, \% p7 @0 J3 I4 `7 Fto update-neighbor-total0 q! o4 p7 r# ], I! S4 e6 b
- W8 x' R0 P) p& X
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) ~* E: ], j4 h- o
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s# K; y. I/ L& v5 @# {end* P* F4 G3 r8 g$ L5 E* b' i
. n5 j F/ W& |7 B, e# Z$ rto update-credibility-ijl
: w9 T K* Y7 |* M5 |- ~; M! y% p
7 K4 j) z; Y9 f/ E7 S3 h;;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。
# {) T. _2 U, }0 I+ e6 Blet l 00 X& L! T' k$ r. I. |; U, P
while[ l < people ]
: e+ z( } M( E3 Z6 S7 p;;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
]9 _; R v& W% `. `1 l5 p9 H1 [[1 a x* I& u j$ r( ]
let trade-record-one-j-l-len length item l ([trade-record-all] of customer) g- R$ d5 O! p n' Q
if (trade-record-one-j-l-len > 3)- e5 w6 F) f+ v& ]0 v. b
[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-one
( A3 Z* P& U8 i% H3 H/ [$ V$ jlet i 3
5 n8 @& u/ @! N; s" @9 u6 B6 G- ? Olet sum-time 00 b' ^' y) f% @; W( l
while[i < trade-record-one-len]
# z' W. J7 n" H5 U0 m[1 J/ K+ N" A6 U. ^) Z( M
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& x/ e" R- B) }2 `. i' L+ P" q& C
set i
! O1 h; f$ b* U) ^- a( i + 1)8 k0 v5 f/ y7 V5 p) g' A
]
. w, k& j( Q3 C# P3 p! Dlet credibility-i-j-l 0
, w1 }% i5 [) v1 w/ C;;i评价(j对jl的评价)
/ T8 x3 C2 n1 L- rlet j 3) z1 l3 n& u. o
let k 4
" W# H9 b/ [: h, I' Xwhile[j < trade-record-one-len]* a3 x# `8 a1 {1 ?+ N/ R
[! X7 R+ i% q2 V) u+ ^/ Q
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/ \0 M: o; O% U1 `$ z. M
set 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)
6 c+ b" P* _" u+ _" jset j
% ` N' O) a1 F1 M& H( j + 1)$ d5 ~6 h8 l. c) D$ h" A
]& l- w! p+ X/ j6 h, w5 T9 ?# _5 t
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 ))* U. p8 \7 e6 y& n/ K+ A
( k0 O+ ?8 x7 G
" }2 {+ Y3 M3 ~; _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ x4 a" B5 f8 p0 A& X;;及时更新i对l的评价质量的评价
- j2 V8 @! K% B! }set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# G; L- u$ m2 }/ P' r4 X, e6 g0 ^set l (l + 1)
4 e& r/ @- p) J0 V- R- e]
; U& j6 ~+ @8 b0 ]end U& v1 {* \9 n- F b2 L2 k
. O! Z- c. h. q9 Xto update-credibility-list
! w3 V! I( m+ z$ M6 P6 o4 {let i 0
; U$ w! |7 Z* M* T8 w5 ^, X$ [while[i < people]
, [* M7 u+ ?) Q: V! j& u a[
' l0 x/ \$ a: ], b/ [9 Z5 t- qlet j 0
' V2 r) e' v1 {8 Olet note 0
* ^$ k% b6 c1 d$ n: |let k 0 k+ {( S/ V& w# G$ |
;;计作出过评价的邻居节点的数目
0 Z' s3 D# }5 M# W# ]; I( lwhile[j < people]: ^* A4 q; L- R0 |) p4 J+ a7 }1 s
[5 J4 E2 ]9 D4 R- V
if (item j( [credibility] of turtle (i + 1)) != -1)# P& U4 M7 e% N2 H# P
;;判断是否给本turtle的评价质量做出过评价的节点
& h8 ^# H) Z! ?[set note (note + item j ([credibility]of turtle (i + 1)))5 e/ z* b# ^9 w) N# o4 U
;;*(exp (-(people - 2)))/(people - 2))]
% N: ?) r1 R+ x5 wset k (k + 1)
) j2 S& G! W& V! V( Y]
3 p& } c7 j9 O P8 J2 P b% @set j (j + 1)- M8 L4 S8 `9 L% X |8 w- f, o
]
. Q% H& |' r# b& M" ^/ A2 Oset note (note *(exp (- (1 / k)))/ k)
% ?2 W, d, J# K8 J) e. t; xset credibility-list (replace-item i credibility-list note)5 A. [$ [. F& E, G8 \
set i (i + 1)
' \: Y* f9 r/ m6 B! C]
) ?5 D" U0 t% cend
) H* E9 j; q! y6 ]1 E$ R' F2 B; f
]1 u4 C0 b4 z+ r$ Z/ Yto update-global-reputation-list
- M5 [* y1 C. I6 G8 Elet j 0
/ x3 d4 ^ [1 i0 ^( R( R1 U7 fwhile[j < people]
$ q% X0 ?7 t3 {: g: `[
% ?" q0 c1 f9 L7 g# c$ `let new 0! z! V& ?0 F& t4 x
;;暂存新的一个全局声誉
' I5 I8 W1 U9 W( _let i 09 F6 b, [* r* _* Q4 f! t
let sum-money 0
/ V1 @! l8 Z0 @. B3 Y# r' d- xlet credibility-money 0
5 G: f, |, a# m1 U+ vwhile [i < people]( h1 c8 S7 G+ N" m+ ]
[" ]) O5 z9 x5 d5 M: N: `: J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ a/ @- H( L. D5 v7 I% zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! m/ f4 d0 T' f
set i (i + 1)
' K( }! g8 O' b# d/ M1 ?3 E]
* z9 s( |) C4 {. t8 ?; Blet k 0/ z( z/ w) y$ E
let new1 0; a, b/ j& P3 Z: l) a0 H7 E$ B0 ]
while [k < people]/ t& }9 p/ p3 U+ k' C
[
1 F& ?& p' E" h& k) o. Uset 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)
2 W' B) Y/ Q7 P4 m2 J1 z4 p eset k (k + 1) K! `+ q( i6 k
]- u7 ^$ K: p1 t
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; H& N! b, [; Gset global-reputation-list (replace-item j global-reputation-list new); `- ^) N1 k& L7 v* i7 L% ?
set j (j + 1)1 X8 _3 ~9 w; y( E. \" C
]9 |0 L5 J" E1 Y+ `7 L& ~7 ~) @/ L
end
! j i1 P2 u% g3 `2 t L9 j3 u. L- g# g$ Y% r, F
8 j; ?* j( H9 x/ T. Y |! y
# J; @5 }& y7 N" `7 F; | K8 eto get-color! T. ?/ Z! C/ U
7 v- l: i# u. }# W4 G3 kset color blue% [: O; P' u, D, u2 @) s
end
5 I$ I- R3 [( L& |
1 m+ K- [- W; `, @& K8 eto poll-class
. q1 H7 \5 \4 m3 V; aend
4 d- {* i) P) e' k: L1 F. r" O
- v5 E8 t; ?, w( p1 @& oto setup-plot1" n- G8 Q4 j, G: V3 ?) J
( t; r# E& B- r2 \, bset-current-plot "Trends-of-Local-reputation"
: T( G" e" R# s! ?2 x% M3 s3 g6 _9 t9 o, G
set-plot-x-range 0 xmax R2 N( ]( A. ^6 c [2 b% k1 P# |6 ~
5 N% Y, j3 E9 f o5 Rset-plot-y-range 0.0 ymax
! W) S1 M# ]: X4 Send
9 |! X- t' U0 }' P+ L, C6 C
7 L& ]$ K0 _# Cto setup-plot2
: K; n8 y, ~: |0 d
4 L! O7 T) M+ X" ]; A8 E# qset-current-plot "Trends-of-global-reputation"% v$ m. ^8 s) o( Y# t
1 O0 {& a% B) R/ _; F- zset-plot-x-range 0 xmax, |( ]! f& `3 D
- t+ J; b; q1 |9 p4 [4 k4 F3 k
set-plot-y-range 0.0 ymax
5 a; M/ t' s7 Iend
0 J, c. D3 l r9 k6 z& ]9 X5 U4 c( n- j
to setup-plot3: ?, f V/ b- D) E# Q" n& L
- k8 V3 A3 G+ y: S' @9 z0 I1 E+ m& sset-current-plot "Trends-of-credibility". U$ E) s( {$ h0 \
& \/ H! E0 \% Nset-plot-x-range 0 xmax
0 ^+ A0 N6 D. r- L4 }1 \8 ~, M: ^# D; q0 m+ P& l& A2 Z
set-plot-y-range 0.0 ymax; R1 h/ m4 Z7 z! b! U4 f
end
, c: U! Z+ L: B* k8 _5 `" B$ ^7 E5 ^8 K4 P9 _# W
to do-plots
8 ^& G% \; O$ C: q6 `set-current-plot "Trends-of-Local-reputation") T4 V& S% A8 t, [' n1 |
set-current-plot-pen "Honest service"
1 }/ Q+ l+ L6 ^/ cend' D; c3 r% J/ p/ U/ }: D
9 {- ]( D4 }1 a* N. Y. v[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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