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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
9 I% P/ ?7 N$ y9 Wglobals[
* K5 f" H4 |2 C" u w% E( jxmax
/ g$ B9 c6 d- T( Cymax5 h7 x3 B) D# [+ j
global-reputation-list
3 v: U+ y2 S5 d' f7 g6 P
% g# g+ F ?+ H* z;;每一个turtle的全局声誉都存在此LIST中
- j- u' v. J5 L2 C6 |" Pcredibility-list, W4 v6 Q- P0 u* Z( q% }$ p
;;每一个turtle的评价可信度
2 p2 T3 k2 R0 [, F9 L8 Fhonest-service- J0 B+ x3 r* [8 }- h( |/ i& Q
unhonest-service
* g7 k5 X7 s$ G- D0 f4 E% @0 h( foscillation
, l; G9 e5 i5 E9 m( b, Rrand-dynamic
% i9 i- S" Y. M0 h" i]& t2 Q3 q' h8 @ z/ k
# V4 P% B# G) {* Xturtles-own[) M4 x+ k) t5 G/ V. X* B
trade-record-all
2 F( t0 g1 d6 v0 Y! C% g;;a list of lists,由trade-record-one组成+ L4 l( M8 `7 v c' m% T" J
trade-record-one! r8 i, D( W7 x) Y3 u. o- T
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录( H4 Z C X( m+ g7 R" q- J- V" X
; g' g# w8 _, v: @
;;[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]]
% Q: D4 W, W5 r, Z- \trade-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]3 p; s4 j4 M8 b% C% Q
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$ S/ W) z4 Y* S5 q9 N. z
neighbor-total
/ W* @# ]% ?; {2 i;;记录该turtle的邻居节点的数目
' k% F; K5 \" J8 B4 R' ttrade-time/ ~! f$ B! j+ f7 b# i# A
;;当前发生交易的turtle的交易时间. ?$ m+ ?, m: \3 q
appraise-give
2 G* E2 w( V" O' H+ P" q( Q2 }) a;;当前发生交易时给出的评价
C3 Q Y% R% H6 G0 `- \: oappraise-receive
" W6 o. F. R& J2 x i* a;;当前发生交易时收到的评价3 M: j* L# E9 l- ~. k) [
appraise-time
3 x* A% z. M5 p! ]" };;当前发生交易时的评价时间" S" t' ]' x" P( E# F
local-reputation-now;;此次交易后相对于对方turtle的局部声誉2 l8 M0 f2 \* B( a3 T( F+ r
trade-times-total
- D+ W4 _* O& D2 f! `;;与当前turtle的交易总次数
- P- i! I* _9 _" G4 D7 ?trade-money-total' t! y4 Z# m9 E
;;与当前turtle的交易总金额
. g5 X- R: Y {5 Klocal-reputation
# [' i0 K& ^" y! s* R }, ~global-reputation& u. D: u* s% I- [ L
credibility$ g! u; P! ^" j O0 i
;;评价可信度,每次交易后都需要更新: j _& p, R u' ~5 _, A4 o- m
credibility-all$ N6 _% F, W$ [( Q( m1 E) S0 u
;;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
/ k6 Y' S8 Q1 {& _* U5 P9 j: r; S6 g1 a
;;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/ O: v5 {% v8 Q. l, r
credibility-one
/ p3 Y0 z2 h j( P, T, m;;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) ` `- W* V- a1 y `
global-proportion% b% h3 X3 \! \( a' @
customer
" d! J g o2 ^- w2 mcustomer-no6 u( b' P& [$ g* |$ z
trust-ok( y3 ~+ m- ]. ?/ w- ]/ O: J2 G
trade-record-one-len;;trade-record-one的长度) P9 C% S& ]1 S4 e; F
]! M4 j, E! F- W6 x
Q$ y @# b; y3 U8 f; A
;;setup procedure
, L5 ~2 U; D4 v* ]/ p w( i3 M; S8 o+ \
to setup. ^6 r# K" W N/ N! I, U
5 \& N8 k3 r2 Z0 r4 _$ d
ca
- o% d8 I: `$ g+ v# a7 r/ `, d3 K! H$ M! s8 O$ ]
initialize-settings
3 C0 i, I% g! r" F2 j5 |9 C" v* [# x) P: o# d) j- T3 ]# ~
crt people [setup-turtles]+ K: E9 f5 s3 v6 p! S/ C
T! B7 f7 v4 m0 Z H, t: ^reset-timer
1 n a$ l: W9 M+ Y ~, [6 a3 Y1 ?/ d2 d& `& L0 ^5 g
poll-class
' U- a4 [: ]. j" t5 j+ i! `! ~! D C* v
setup-plots
2 d1 T2 C2 c. t
/ F( t. L" \: z: c: [do-plots4 n5 t8 Z! y, K9 O9 f1 D* G
end3 x- ^9 W* k5 c: e$ a
3 c. {6 }: J: [* p" j; ~9 rto initialize-settings
) H0 Y+ }- f7 _! |
" G; V0 K- ~8 Y% oset global-reputation-list []
& m2 J6 p: Q5 ]
' K z# i, F! Z1 J; g) w2 zset credibility-list n-values people [0.5]
4 C6 g5 B3 O% c4 z8 {) |. Q* U
4 N; J$ r0 ?# P! A7 x \# wset honest-service 09 y2 ^) O D- t
4 ~5 F. ~6 w ?7 y) Qset unhonest-service 0 ~, Q) s3 W9 n/ {% L, R0 T
% Q8 D+ B* P; i$ l
set oscillation 0
# b5 f. k! U: v1 H, i8 S/ ] E" j2 Y- M( K3 V Y, C a5 D
set rand-dynamic 0
' O- ?$ F" Y9 B6 b* _6 ]end
+ x: X9 T V j% S) ~" p
7 D: O4 }1 d# qto setup-turtles & w/ `/ r% C( p& S1 W/ W
set shape "person"+ q, p1 ]' d$ C8 X; L* Z
setxy random-xcor random-ycor
5 X& g/ H5 z& ^* L+ T9 L. X$ s. x9 f5 Yset trade-record-one []
# f: z' [1 b: A' Y2 l% z
! p6 P- k/ s* H! d7 qset trade-record-all n-values people [(list (? + 1) 0 0)] # r, u- ?) ^' [6 G0 o0 P* e9 j
- Y2 w% p6 q; Tset trade-record-current []2 }7 o6 E) a6 `! [0 X4 A7 [
set credibility-receive []1 m8 l: M) D6 b( D1 k3 K( _
set local-reputation 0.5
" S4 V2 v! {1 U, D% J- Gset neighbor-total 0# @2 D) x" c8 k& @2 L+ G" ^, l% n1 I
set trade-times-total 0
" m/ s5 B9 U1 J% ]6 ^% F5 N: xset trade-money-total 0* P! r: H5 z( c: X- M" q5 |
set customer nobody
' s. X1 ] w; K) L0 Fset credibility-all n-values people [creat-credibility]
Q% r! `7 g7 O# `3 ?+ Xset credibility n-values people [-1]# U& C6 c$ b4 \) {7 \+ [) r0 h
get-color
4 D( X, c* S3 A) ^0 ^, \( C8 Q9 u7 ]. Y ~; F
end
Z4 s; \, L# K) q+ L+ W" X9 U, C$ @ {- P
to-report creat-credibility
5 P% |* c" Y5 W" D, T- Preport n-values people [0.5]
& N6 g! k( m4 o% y% ~" X) Q$ iend
2 S# j# ?% w$ Y; {0 b" h, W _ z! p8 Q4 t+ }: ]$ p, S
to setup-plots
$ `5 { _1 D; X' ?* q* @% R {7 S8 ?' T! F% n
set xmax 30
6 K) W" j! a* h/ X0 D4 g# s {* l- i" }/ }5 k# A0 b& S- U3 |) {4 v
set ymax 1.0& ~3 n) j4 E* O4 j# Y3 I: ]+ q
3 m, q9 n I/ |* r, D2 `clear-all-plots4 C- D9 J% c" D8 k3 I! S
& H" V* }; [7 q# z
setup-plot1" b% q4 I0 o' O2 k5 f6 Y- G
2 N3 y$ s ^5 t4 jsetup-plot2
& B+ I# y1 z! a
% @' i8 q) b; g% X c# Gsetup-plot35 G2 R5 U5 x; p% t$ |
end" U" Y+ S$ {- X% C3 S* d
( c7 y- G3 F( P/ J; u/ V9 o/ z: H
;;run time procedures( |% I0 Y" M4 u) v
9 Y' i% |; ?+ v/ p
to go8 n0 T% m4 F5 p y. n* y! @" |4 N! P
# @" S9 }3 S6 b4 r1 l5 Z. Q6 pask turtles [do-business]
' X! j9 C& A. b$ i b1 ^1 [- Lend
$ q; Q/ {" q* A) P: U+ J6 n! S- V: P0 @) O+ K- N
to do-business ( p* ^* A4 p2 [: G0 p" q5 H
; R. B% Y; U, |7 Y. s1 L Z
8 {+ R. {' ^ L& a" ~' n$ ?rt random 360
, N4 V% O6 A, A. ^9 _; f( S* i" I h8 C8 o H* ~2 F+ l& _
fd 1
- F% Y( Z# M D0 L3 W& E" `# d' l' R, O) _0 } ~9 ?" W
ifelse(other turtles-here != nobody)[# z+ b* |* }( c' g& a
4 k3 c2 L* r- Z( rset customer one-of other turtles-here
( s9 Y" d) U; x: f4 ?
; f7 I/ x W0 }* v& U) w& T& G;; set [customer] of customer myself
! e6 E+ M1 a8 n0 W8 S& [, {. ~# ` u2 ?: ?
; x) [, X4 M' t# |& h Y% Y0 F; nset [trade-record-one] of self item (([who] of customer) - 1)
8 K5 b' k {! ?4 c- Q5 Q/ ~[trade-record-all]of self# H# ?0 y! |0 I& P6 A+ T) o
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
8 E0 F' g' P! \' G6 X9 O4 @0 a& n, }
7 c4 C9 a6 B4 @* V5 Fset [trade-record-one] of customer item (([who] of self) - 1)! p# Y+ Q {! L& w4 r% W6 ?' p9 Q
[trade-record-all]of customer
7 H5 W- h9 E% Q8 Q2 {8 h e A& {1 V
set [trade-record-one-len] of self length [trade-record-one] of self
) Z4 C7 n/ _4 d/ b
' L$ P5 R, A; G, f0 jset trade-record-current( list (timer) (random money-upper-limit))
) V4 m6 b9 k# J6 x# `9 y, v* C- U1 f. z. a- @5 T5 t
ask self [do-trust], p! x+ I5 m5 Q2 Y# y" h
;;先求i对j的信任度
5 p' Y' k. Z8 `' r0 @! a: \$ I' L2 E7 {+ `, n+ P) o L9 Z2 {3 W
if ([trust-ok] of self)
- [, F+ b5 B$ P- R4 |;;根据i对j的信任度来决定是否与j进行交易[) V: r+ e3 Y' c0 u v
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, u/ q9 B" _# J5 o. i6 I5 Y
* R; z4 }* t% k& d8 M2 W6 q[! y; m/ t( }, L
2 [/ H" \' S/ s% H% V# _9 `) H
do-trade" \$ U4 k" }/ v; C
4 H( C, u& S. E# M- o* v0 `
update-credibility-ijl8 g3 ]8 y0 U4 Q1 b2 f
+ s4 N) d4 p* V4 p9 G' V
update-credibility-list
0 z0 ?4 n% q0 L9 n# g! `! G& b5 J- J1 ~- O7 W# N* a- h- |
4 k4 d8 V A0 B# @) G2 D& Z- I ~update-global-reputation-list1 `% Q# c8 \& ?3 |: v& r2 n
4 j' L$ v+ C5 F4 p* |poll-class
Q1 D- D6 E5 i& |2 J8 }) q" l" Q( I
3 p2 V. M3 `) K% P9 Wget-color7 m2 u% j5 ^* \3 {
4 X2 z7 g+ n# S2 P3 W! e
]]
( I& ~* [8 }4 V; ?% ]' @6 @6 Y! C6 O) A: a- ]# `1 O/ {2 k& @
;;如果所得的信任度满足条件,则进行交易
, j: b9 x# J3 _$ L* K3 s* T
& s% V2 h* ^. |9 ~+ u& H[
X6 U; \ V" U' }# N
; i- F' b* K2 W) U2 Mrt random 360' I% H0 v& }9 H/ R/ P& A0 |
& c/ ]! ^! s+ f) ]( x5 C. ~fd 1
+ F9 W! c; m- R' w6 T2 {0 j# P. o* e* M0 c
], E0 T" j, _3 e* ]3 B
^9 `9 N0 r& V3 B% I
end$ Q3 j8 P3 }: D: {! ^
( m# t3 Y9 m" d$ F/ x0 b. ]% o
to do-trust
8 e, r8 k1 b# Oset trust-ok False
6 l3 R% l5 t4 T5 n6 c O9 R5 @! I5 f0 V4 j! ~# c% k% W
1 w! m7 ]7 b2 B4 x) u( _/ Tlet max-trade-times 0) J2 s: r# L$ e* O1 h
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ g- h3 g, q) ~: C
let max-trade-money 08 |3 ~$ \2 T' T2 u
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 O, C- G* }+ F
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- O3 I7 u2 B) y$ k
7 W; t0 A* M9 F, h, m" F: F
6 t6 z: w1 s! Z( F6 Sget-global-proportion
& X1 J ]1 {0 n! H/ Vlet trust-value
, g, R* O/ @# {; C# G' k. f1 q4 Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
2 U; |- v' O8 c& n5 ~2 t& xif(trust-value > trade-trust-value)0 f* V8 Z" ?! b# M' c6 O
[set trust-ok true]
% C$ f: N/ Y# Z5 [! @3 xend
1 {6 I/ i* c8 s! r/ @/ ]8 A
4 _# K( n8 m q1 m8 Rto get-global-proportion* a. H& @8 h0 r7 v3 T. x
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ k7 R& I0 @$ G% E+ c
[set global-proportion 0]
9 _ ^6 J& C- L% I: ]) e[let i 0
6 j. [# W' c" Plet sum-money 0' {6 O6 u! R4 o0 H, k/ }) e4 i
while[ i < people]
6 ^. G0 m2 o- D[( E( T# ~! k9 }7 m
if( length (item i
$ I; f1 O) Y& B% {$ C& i' |) d[trade-record-all] of customer) > 3 )
8 f' }# \3 s9 \0 \' B; ^[/ `& e" O8 |2 v/ d4 K5 o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# |: ~% ]6 H& ^0 f1 o' }7 Y]( G' q* Z7 e+ \0 o6 f
] d) U0 H4 o% B/ L2 \
let j 0, W9 O4 Q8 }$ u6 i4 K+ H+ ]
let note 03 `7 N, G# ]" R" H
while[ j < people]- o" B0 p: r7 y \$ @
[
9 L6 h7 X) z# l/ H C4 tif( length (item i" _% h3 n7 G, L4 J! X* K
[trade-record-all] of customer) > 3 )
# g1 d( R1 y+ p* L7 _[
% F9 W0 [1 a% l+ ]2 oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 o' m0 V$ |2 U[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 J; d$ Z: V& W) |, \! d! d4 q+ g
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 b% o- K# ~% n$ G; ~
]
+ I" w# c5 \% g/ _' J, u]
( ?7 j; i! m% S" Lset global-proportion note# h9 ~& {$ B1 V$ h$ U. _/ W
]3 m! A# M: u& S3 ]+ Y! j% w
end
: Y7 i: o3 N* `4 n
x" j# t- e4 Q A- c7 p6 o8 ?to do-trade
+ H7 e* }, ]) D( i: H" e/ ~' y: w;;这个过程实际上是给双方作出评价的过程
1 a6 h8 \9 z. cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; J) X1 L7 g# e$ S- J5 j o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# G! |/ e$ T; `) D. z$ o K, uset trade-record-current lput(timer) trade-record-current
( X, I5 X2 }& };;评价时间* F/ d% c% _3 R
ask myself [8 m* u3 _: f; X+ D, e# c o
update-local-reputation5 ^; w, @$ J. N8 L% ]# l
set trade-record-current lput([local-reputation] of myself) trade-record-current' S3 n8 q2 I$ Y
]& y& f" f- M1 V. d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* k' P: l! g5 |* R& f) D1 }3 B;;将此次交易的记录加入到trade-record-one中
9 }& m# P! N3 l0 Q2 Kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 b& G+ \, x; J6 f. Alet note (item 2 trade-record-current )! [+ p9 ~% `( A' m$ `
set trade-record-current
5 A# Q- A" O) P(replace-item 2 trade-record-current (item 3 trade-record-current))
" ~$ |* [- m$ ?( W$ ]set trade-record-current
4 W& _! Z+ A+ p+ u. \; l(replace-item 3 trade-record-current note)
/ A! c) ~8 I5 x
$ r2 V; P- G& i* t9 g% F7 q' I! b# _
ask customer [0 [5 P3 R# ~- q# u7 {
update-local-reputation- g0 g$ C8 y. A( U
set trade-record-current
6 }9 z; L( _( x' o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( w9 K5 G: V2 c6 ?6 @! M, d2 ^]
$ y/ p* i8 ?. {+ D% i+ h3 c$ k+ \4 g% N9 g
- T( r1 R" p4 l; \set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& \. p' S- ?" H' O& {
, p* o# w- k. m) Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* o3 i2 p: e. Z, `
;;将此次交易的记录加入到customer的trade-record-all中
: b& [! q. B s6 @3 dend
3 `! X; {& l& u1 b3 {, U0 x8 O0 n; N( N2 u8 O
to update-local-reputation
* n3 t+ w6 R4 i4 O- |/ ~set [trade-record-one-len] of myself length [trade-record-one] of myself& a; m4 Q' [) S( z+ k9 P) B- `/ @4 Y
: t4 z+ p. i3 v- m
7 G7 w* D2 e+ s
;;if [trade-record-one-len] of myself > 3 ; K$ U6 W! U+ I1 k+ A& M+ w) f
update-neighbor-total1 j9 Q! U' |/ ^" Q
;;更新邻居节点的数目,在此进行: F! a7 s! H, N) k, l' r2 X6 v
let i 3
% O$ b6 w2 M/ ~) _9 clet sum-time 05 @3 i2 l2 C3 c4 Q* I
while[i < [trade-record-one-len] of myself]
, B: }$ W- N$ O[
( F" f4 ~" |( @$ t8 yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. K* z. e: d) a2 h9 D9 Uset i
. }$ P J5 m: x p0 \5 i. C5 f/ o( i + 1)
; k1 k4 E" B1 e# @" g7 J( U2 O" N/ _' Y]
/ Z2 _, C+ y& Y9 k% N% O+ jlet j 3
$ Q" o1 `1 f/ v1 s' i3 z* H, R& glet sum-money 0
; T3 ?$ J4 A2 ^7 y* Y: p0 jwhile[j < [trade-record-one-len] of myself]
6 ]# V! S q$ Z& n3 ]0 q' M+ h5 X; S[
& q! |/ ?/ Y$ }; v! \# ~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)
) T3 W( u$ o9 d( Sset j
+ E$ s5 C$ @! I7 d' C$ ~( j + 1)- r$ h$ }( ?; x- v7 x4 Q
] I `# @# L, z
let k 3* D" r4 j. n: V. h2 y
let power 0
0 j6 Q- Y; F2 B4 ~let local 0) Z5 r' D5 J- c! S! a9 d7 m
while [k <[trade-record-one-len] of myself]
; o. l) u$ `2 X9 w5 r$ v$ C[
! E, v. Y$ `. s7 [$ {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) 1 a& E! z6 X3 W- I' _$ o, b1 ^* f
set k (k + 1)! S) D7 E |) W# h* h% p3 t# S6 G
]# H4 f; I6 y' z4 t! h) q
set [local-reputation] of myself (local)
$ v0 B4 g0 \& D5 l& b' G; ]( dend l" b: o0 K3 P2 x8 h+ d/ n
8 w- P# E) K) V- k
to update-neighbor-total" i: w/ g& R, s# I
2 e9 R$ ]# N- M, y, R- q7 ^
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( ]/ y ?4 D m( y8 }. E2 [
; J: Q1 h7 k: N
3 h, w/ r* _. Q1 ~, @
end( g: e3 ?( O3 U4 L5 v' V3 s, |
' v& I( o! g m0 lto update-credibility-ijl ' t- X4 O7 D- R" n' t
' i8 s# e: \: Z;;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。
! j! A4 ~! |3 R0 R+ wlet l 0
) r8 z% R: z9 F/ f/ d4 @while[ l < people ]+ o* _4 e8 B& w$ r w
;;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
. s* ]+ i8 B" ~; r, ]! ~$ J$ `! n[
/ Y9 [6 ~0 T" H2 {; C- [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; X$ M8 W& f5 B& L, i3 S) nif (trade-record-one-j-l-len > 3)
3 v, @4 Y; I: b% `) N- _! k[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; \" z0 k' W$ E x6 i6 @0 s0 `
let i 3: ~) i ^6 P7 h
let sum-time 0
+ m7 C' g, G$ Z) t1 Awhile[i < trade-record-one-len]% F; f* @- h1 T* W; V- w+ W
[
* e& s* ~- A- l% Q5 p R; yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# G6 Z, a! H9 C% x8 a" m: wset i) ]; ]+ i2 g+ d& V
( i + 1)
8 M ]" r# F. z2 P, u. e]
( s: t" P7 ^$ b3 G" Hlet credibility-i-j-l 0& Q+ |5 p9 Q) i6 o9 S6 i
;;i评价(j对jl的评价)
5 \. n* V) d# N/ K* `2 wlet j 3
, Q3 R4 P) a3 D/ Z1 V A& Ylet k 4
2 S/ ]" B) A2 |' swhile[j < trade-record-one-len]
7 R8 b9 K% H0 Z[
# K8 ?+ `, M) u; U1 B+ Zwhile [((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
2 ^9 q2 S% ^+ A. |- Z) W. I' Iset 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)
, d$ W/ u' e4 Q5 `- Yset j; m# v$ g! A: v& H( R5 G. n' H
( j + 1)- p# Q3 C/ i3 }4 `4 E' \
]
/ R# k" _+ W9 w) w1 c+ Pset [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 ))8 P# ?4 K1 |- g7 ~" o2 [' s
' Q7 O2 v4 ^+ P, m! T" x! x
1 c- ?+ g- Y$ K: Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! i! c6 z( Y X9 K1 u1 Q
;;及时更新i对l的评价质量的评价
' A/ B0 K& b7 @' ]% R0 fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, d/ f' c' p& i/ ]4 k. v5 [6 b) B8 [set l (l + 1)
* Z* e8 o" e$ i$ @% p5 e]' T y# F9 z+ v9 t$ Y Y
end
( W& C8 i9 p5 ]/ D/ J7 Y: [( _8 ^# e h/ k3 j* Z! l3 O/ E
to update-credibility-list
8 t0 T9 O0 Y" @# alet i 0
- Z2 G4 {- n7 s+ C; T1 d+ Cwhile[i < people]% l1 @6 n2 h/ q9 i' a
[* K, X* O; H& F/ @
let j 0
& J/ j1 V; }% O2 x- jlet note 09 u5 d- f* a$ w. q
let k 0
( }1 w/ H u8 q/ G5 A+ R# Y;;计作出过评价的邻居节点的数目
+ C7 ?3 e. c1 y/ |9 q1 Jwhile[j < people]9 f' \- r: s+ {! ^" y5 E
[3 c2 x- E8 i- f, w3 O
if (item j( [credibility] of turtle (i + 1)) != -1)* [9 E6 Q8 j, L5 c9 |( D! K$ I9 c
;;判断是否给本turtle的评价质量做出过评价的节点
5 O$ ]* T, b5 m) {1 V+ k[set note (note + item j ([credibility]of turtle (i + 1)))
2 Z" u/ f: i/ U7 V$ b- q$ B2 c+ x: y1 O;;*(exp (-(people - 2)))/(people - 2))]
1 P# M# p3 L+ g+ u9 F5 P. p( G( R9 V: T. dset k (k + 1)
5 L1 T: i& _; n6 Z; Z3 K]
4 B+ l: o9 X3 g/ r, Hset j (j + 1)
+ S0 A- h$ ~1 Y/ } m4 _]) C! n5 n6 V1 @1 U$ ?- X) U
set note (note *(exp (- (1 / k)))/ k)
3 n: P2 S% K3 e4 G1 m: h: kset credibility-list (replace-item i credibility-list note)
& ~ Q4 L! l- }set i (i + 1)
; \6 k* F" W- |6 K] j, s2 I1 N F; N3 b" R
end
; {1 g0 T+ H7 L( `# A, A! b. O- M5 [7 q7 ^/ U2 V8 E
to update-global-reputation-list
! _* [. A0 n% B' P5 Clet j 05 {. G: K1 ]: s( n' p
while[j < people]
" A5 r; n2 N/ L0 \. U% O j[
5 i0 ^2 _. l0 X& K7 D F! c0 _+ Flet new 08 \% E% J d2 u
;;暂存新的一个全局声誉
- F. D. ^+ y/ ^5 J* _let i 0
( B' Z8 K5 d6 I/ }. blet sum-money 0
- l! k9 R" G9 h' B8 V9 olet credibility-money 09 j5 `. t: ^/ r) Z" L5 h5 ^) h3 J
while [i < people]
! C2 I+ I7 Z$ Z% C% \. l K[
) `' e9 R' L4 ?" j8 \& _! gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 u( W* D8 [. }! I4 Y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) P& Z: a2 s3 {6 N2 b- P7 J
set i (i + 1)- R9 S- D! ^( e! C- j% l& L
]7 S2 q N" U% B% P& g
let k 0
/ R4 ~% E& G/ W2 vlet new1 0: K5 K0 p9 f; O
while [k < people]
( p7 p* |$ V: \4 [[
/ s+ w `" A+ }8 x4 H5 O9 ^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)
( l$ ]0 n T$ \* I2 D5 Aset k (k + 1)5 o* @ E' F0 e7 P7 t% b! y4 K8 Z
]6 p' y( b9 @6 k+ @( ^
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * Q: `' m0 w7 Z: I( R
set global-reputation-list (replace-item j global-reputation-list new): E/ c: s) z" p+ }& l; r
set j (j + 1)
' [% t% V9 I( x X7 {1 Z* P] @5 e- l/ r" J# `0 `7 v: a
end: F/ _2 `3 R' R# J# |, V7 p2 z1 [
; {% W( Z, O8 G+ U
5 A: V2 z& o3 x0 z9 I" V( _1 `7 P% n4 j+ \7 v
to get-color
% _) o/ M- ^8 L* ^1 l2 p" m Z, [+ X
set color blue, m" f. I1 B* `2 e# F8 I* l) C/ ]
end5 w$ Z, c- h' Y9 Y9 U
) g: A/ F% ~' B2 hto poll-class
0 f6 S! a/ X/ i8 \1 ^/ \( h$ Iend
6 [' W x( f, \6 k
0 J7 T* R7 ?+ w3 }% M$ Ito setup-plot17 L+ y4 p/ D: ]" {2 M: g. N, G" o
; x* f' m, C4 G* w" B
set-current-plot "Trends-of-Local-reputation"
p* @' G( K. }: L; X* x* i6 S
set-plot-x-range 0 xmax
6 S, e- ]: T' W6 L; c b% @
" S; Q3 [5 E7 f r$ ~. m( Vset-plot-y-range 0.0 ymax4 O8 U/ o- z8 z+ K; f" v) W; k
end8 M: E7 P0 `/ i- O- L
) ]: G; m8 C) q9 m, [7 a( ]to setup-plot2: o/ ?9 D9 j% I B. E. c* ?: M$ j
% y; x0 ]( T. @( z' l0 {6 C' i' q
set-current-plot "Trends-of-global-reputation"' y$ _% y x2 ^4 Q t; r4 M1 z
9 p9 Q$ q! Q1 }& s# {set-plot-x-range 0 xmax5 X2 l' c$ Y" A7 N, o
/ c6 H) \$ ]# a( ]set-plot-y-range 0.0 ymax
- M& I" r( ? Nend
' b4 E3 _4 k. l4 @- R+ n( Q# } ~3 A8 N5 C
to setup-plot3/ U* z0 ^: H2 ^6 S8 a7 q# z
+ |6 o4 W1 z: R& k# G Gset-current-plot "Trends-of-credibility"
. Z) ~8 |4 B q! c7 t* E* u/ P1 L. F: r" n& t$ N. z p, B
set-plot-x-range 0 xmax$ Z" X6 z. v2 H# h: U+ C
4 |7 ]" S, K2 y: d* \$ `# C3 R& Bset-plot-y-range 0.0 ymax
9 J% z. B, e4 E6 w8 Iend
, c. G, J9 @1 V* Y# _7 H* D' o0 S0 [* k6 }) V9 p: m
to do-plots
1 G' K1 e$ O, u( g0 u9 mset-current-plot "Trends-of-Local-reputation"
* |7 _% f* ?' ]7 x! N X) q, kset-current-plot-pen "Honest service"
8 [" k( K3 n F) ~end' e6 P' m% E! b
. t& t: ~3 Y3 ?! o
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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