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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
$ @! A P$ b& l7 y& Cglobals[
: n8 A; [* Q* R/ s# {xmax
: j/ t/ b% L8 p; @8 ]% V( h; eymax
( _' D- [* P5 X# Y) bglobal-reputation-list
' l' }) Z# @+ z' W
6 }3 w n" V5 c% T( o! j;;每一个turtle的全局声誉都存在此LIST中
7 [& P, d( p3 V1 Q. Icredibility-list
/ z# a4 V0 \; y( e;;每一个turtle的评价可信度! R' T+ x' X+ P1 m8 M
honest-service& r/ O, m& Y: E- t# s! n& L
unhonest-service
: Y% T# U# x+ m1 V+ Poscillation
, M% r* Z" V! r. Xrand-dynamic6 I( o( v* @$ c; p. Y0 m
]; U2 B, V! Q" X- m. g
$ ]1 K7 w: R Z+ N0 M
turtles-own[
, ]( g4 l/ m3 J2 Z' utrade-record-all
* [5 Q7 S7 A3 l;;a list of lists,由trade-record-one组成 B, w/ Q, _) k3 J' H. Q! M5 I
trade-record-one
/ u1 \4 c: t& M3 C3 A* K;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, ?; _2 i9 y1 c" P$ I4 [& }! x% L2 l" t7 r
;;[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]]( p) B( d a1 o- \
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 D2 k+ O" V3 ]9 Z& ycredibility-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list0 P6 h' u4 o- Y8 c g+ t
neighbor-total
8 Z! x; O$ ]- r7 Z6 B;;记录该turtle的邻居节点的数目! O: a c, ^1 K8 p! e
trade-time
3 Q0 u0 H+ [/ p, [4 m/ i;;当前发生交易的turtle的交易时间2 Y/ g, }0 m) {
appraise-give
( a7 j9 c6 U$ e) Y i;;当前发生交易时给出的评价
! _: r' H" T6 A4 kappraise-receive% ~7 Y" v3 _ n
;;当前发生交易时收到的评价
0 n2 y c$ A% B+ Oappraise-time
! p% ~) y# F& k+ [* O;;当前发生交易时的评价时间
9 U% L6 P4 T( b+ M4 Rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
# B3 l2 Z) o% ?! I5 g! ctrade-times-total
9 A. g$ K9 u# N5 \$ ?;;与当前turtle的交易总次数6 R( h1 x( G) Q1 D, z) Q1 z
trade-money-total7 w4 L2 `% n' |
;;与当前turtle的交易总金额* u2 o0 o: J/ ^7 Y
local-reputation# `. n6 E+ W" p- o. u
global-reputation
7 u' G" {7 ?' [* Z; Acredibility
- x3 d' V. |5 R;;评价可信度,每次交易后都需要更新1 U9 W0 M2 r- ?, ?. _" H1 _
credibility-all
+ e) ?+ G( ~$ 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) N" h) ~' f* g" U7 ~
( s: K& ?+ H- W( J0 g9 \: Y
;;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
y% D3 Q. s& L6 |2 Jcredibility-one- w( ~0 H: X: Y- `! Z
;;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+ }6 `( N0 z! H: k' V
global-proportion
4 ]9 \$ b* z( @7 @2 L' h& hcustomer
4 q( A' d; G5 V* V y8 lcustomer-no
/ c3 r7 c) x* H$ `, ~; B% Ctrust-ok
+ M; _: l1 P& Q. J5 jtrade-record-one-len;;trade-record-one的长度
0 t9 j1 G) ?3 X: Y& a]
" @! `4 v& f4 T) `7 ^1 }9 r, _' a& }) W* Z, Y
;;setup procedure
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to setup6 B1 F7 a# a: G4 Y
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! m" `7 d+ u/ H5 O* Winitialize-settings
( S H, }1 J# X; c
; B& ?+ W+ ~/ a8 D' Tcrt people [setup-turtles]' J7 P6 m/ C3 [# R
: e- B6 ^+ O: b% breset-timer
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poll-class9 J3 @, g% G$ p9 g# C+ `
' [2 C9 z! B$ w, _( p9 V7 h: T
setup-plots
3 F" \2 m* E) |( x& z5 E$ N, Q: s: O5 W0 B& |3 ?9 e+ ^
do-plots* |, ~6 T1 @8 E Y
end
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to initialize-settings
: V3 o7 U3 C' q. e1 M, O; r( G9 S( t. U) o& z) i+ U
set global-reputation-list []8 B2 T& o3 ^, @0 U, J$ C: K
5 c4 l. [0 ^, w- U0 V6 _( A6 c
set credibility-list n-values people [0.5]
# r; I( j% U( h1 J' j% T( F
' U( o. z- s9 S% H# s6 dset honest-service 0
6 e3 z1 Q- u5 T8 _8 P9 R. z
2 ~5 p8 d: s* F5 S0 G: Uset unhonest-service 0
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set oscillation 06 G# N7 B9 C6 N7 U; D# B
( l) y9 \5 l% }4 n ?" n3 W
set rand-dynamic 0( a: R% I5 o) b: R) e
end; b$ ]& G+ L, }. q- g
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to setup-turtles
8 R* \3 T% r1 p: |4 fset shape "person"( b% g: ?6 x$ K& A/ \6 t8 ]0 q
setxy random-xcor random-ycor
, o; i) X: m, c& Q, z& g# vset trade-record-one []5 I3 [; W* r; y
) y) q$ J6 V8 P3 G7 L# t7 M
set trade-record-all n-values people [(list (? + 1) 0 0)] ; w& e8 M/ U, S
) v5 N1 Z/ s# r6 N) Z) q+ x
set trade-record-current []+ d( o; @$ ]5 D6 y* c4 v: h6 `" {
set credibility-receive []
" w" ]# Q- \# B3 _0 |8 X8 k& u. g1 uset local-reputation 0.51 a; |2 y( H' v0 @9 Y
set neighbor-total 0+ K6 }" P4 o% i: G3 R% r8 }
set trade-times-total 0
{4 M8 e% d- Q9 d& Dset trade-money-total 0# q2 d9 L' o `5 G. y- G* P9 z
set customer nobody
) O$ T: {, j8 Y* h9 }& o1 T0 rset credibility-all n-values people [creat-credibility], M% K/ B% B: f( u6 w" X) N
set credibility n-values people [-1]
: K: w/ g% f8 ^get-color8 u4 r) q" }+ [) {1 N% M
4 d& K7 ]; [: L! } @- }# @
end" ^3 p4 {1 q3 \( w5 c) |) V
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to-report creat-credibility( E+ h* O o+ T7 G3 j# [
report n-values people [0.5]' U6 T! e/ z' Y7 i) ]
end
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to setup-plots
% Q4 i3 M& S* \% G) V; [6 n3 ^
& }! H1 z) S) s& W! dset xmax 300 O) y: Z4 t1 C& l6 N; J8 W) N: o
. T; a) ~" L: ~3 E6 Oset ymax 1.0- N% @2 L% E+ |/ R9 \1 U7 q
# ~. r4 Y) `1 k2 d! s
clear-all-plots4 @7 b1 e4 l! t2 I. u
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setup-plot1
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setup-plot2
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+ W# @! d3 `0 K) b7 s9 o5 ]setup-plot3! b H/ ]1 T5 k: t( ?
end- _( O ]6 X- Z. |' q3 m+ M% q
& n9 d; ~) V1 h8 R$ f7 ~% ^
;;run time procedures) [' i o' x% }" b5 n K
* P" n! j) A( Q+ f- w4 l: _to go
* U9 v$ f9 O) Y% B
; C6 \! g J, b& U H, j% Lask turtles [do-business]
8 T/ ~8 L) B! t- ]' r& p" ^end. U- I- a! ?: j( B
5 A/ A% @' }* l$ R: X8 K, Tto do-business - \; d2 P& b/ D" R
0 a F( I* l( ^* R2 ?% G) H( s
7 f8 J* d7 Z; J0 g, K$ q' Rrt random 3606 J& l6 U5 q1 C4 a d( Z$ j
: w; l! R- `& p/ {" R/ cfd 1
4 h7 ]; f& e- _5 o; ^! O5 o' K% s: j
3 ]: ~+ T+ L0 Nifelse(other turtles-here != nobody)[
+ a/ n8 S$ o% r. F! c6 u3 l3 M& R4 p7 X; I3 a9 Q1 a. h
set customer one-of other turtles-here
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) `3 z f! D! {- p- K3 _4 \" I;; set [customer] of customer myself; t9 o. g& V+ v, f0 n4 i& w5 e
6 }* L) `# X* w9 t: E. t' Z; oset [trade-record-one] of self item (([who] of customer) - 1)
7 ]0 h/ j x; T; n3 M* ^[trade-record-all]of self7 H" ^- U p, g0 j% m2 c9 T# J
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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) J9 h9 D# j1 A/ \set [trade-record-one] of customer item (([who] of self) - 1)
* J: H, @6 t' E% W$ x" g; b[trade-record-all]of customer
5 B* }! f) H" J: z* u' @' _- {. h' g! B; q2 D( o5 e' z
set [trade-record-one-len] of self length [trade-record-one] of self3 ?0 f- }; J G; I
0 g$ S r- C, |7 I6 H; U' \* w+ }
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]0 w3 o* z1 ?. v) L# R* r
;;先求i对j的信任度
: T- k+ T8 k- e3 M& M% ?! L8 ~" `3 n, ^
if ([trust-ok] of self)
) k$ J l- O# s2 z" f! I0 j;;根据i对j的信任度来决定是否与j进行交易[
- b: k. |( F' j" M) q# u( ~/ j- Dask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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6 B F5 P @% I/ ^$ o% A: K[
X; {' z& A9 ]# t
" ?2 Q8 K, V0 ]& @! Fdo-trade
+ p' l2 n8 }8 x" o& f4 X" _0 A" W* o5 o/ z2 {
update-credibility-ijl
; I5 e+ H5 X+ u- X7 N
6 N3 d4 T' t9 |" `% Uupdate-credibility-list) S8 a* f, U' h8 ^
3 y$ M O) j' _$ d8 w) X
' k( j7 t' K& g3 e
update-global-reputation-list) X# S4 s" d/ D- D
4 w6 m+ K$ k: j W( D) opoll-class( S( ~* x# G0 L* U: |/ \0 O1 G- x
) ?& l6 y+ n" ?5 w, N* J6 N2 F
get-color9 \9 }& G. \6 H
- ^9 C: p1 k% d0 O3 c: u6 X0 r
]]5 P( _3 _2 H; A7 z4 S# a+ F+ C
) ~* R3 R4 x, V" S% [0 F3 q0 @
;;如果所得的信任度满足条件,则进行交易
/ B$ j# n& G: L8 u4 S9 d% f1 e$ W$ k, u2 s! z0 e
[
: U* k9 e9 l* v$ j( W( `
" H. }* O& m2 F& ]$ ~rt random 360: A2 R$ S$ ^" F2 e ]) I/ ^7 @
0 H, F$ m q4 L5 P9 pfd 16 l& j, G* z9 M
; S: T4 U7 e D+ P" h j) _6 Y% s] p* s7 k* Z$ ~4 B/ W
; l& w, x5 d5 G1 `' G8 X8 Yend
; e! G( G0 v, A" `+ K
" {+ u& l; r6 s+ r9 ~) \to do-trust
9 z/ e( a) ^5 f3 Aset trust-ok False- S; Y0 T8 Y' F7 e2 x' m
# p, I0 @& V1 Z& ~
2 Y. I" T" V9 y. a# ]2 ]
let max-trade-times 0
5 C; J- J1 b8 c3 Yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 s9 y: n0 S7 J0 U$ h* m& P/ q
let max-trade-money 0' q/ t- D3 V( c& h. |
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) A* p! K9 Z7 b3 L* T( r% hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* r# V4 \/ ]2 z& \2 P
% J. g9 ]; ?- z/ l& C) |$ Q
0 i0 G' B7 S5 Q! U) oget-global-proportion; z2 A4 I0 {2 b- \3 T5 H
let trust-value# o) V: f5 ^5 }0 j
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)) s. p, F t/ R9 r1 j
if(trust-value > trade-trust-value)
( f/ [& L; i; z[set trust-ok true]6 v5 N' ~ \1 @6 n$ d) j
end& R% i) M* B! [8 F
7 J+ R- I ?& y: gto get-global-proportion
( u$ {! T$ F; {3 F0 w; N9 r' yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); |7 m2 v6 j9 m7 x8 Y, `
[set global-proportion 0]2 |7 B( K: G5 c0 `. v! ~# }
[let i 0! d6 T# ~/ q: e9 `& L, Z
let sum-money 05 E( a0 J, H4 Y. j, w0 v% L r
while[ i < people]
: t ~1 X1 k& o: G6 T[6 Q% H* ` [% r2 J2 ] @
if( length (item i) i- u3 ^4 \6 ?1 L
[trade-record-all] of customer) > 3 )5 q0 q9 C. G$ d3 I/ q( Y* }, i
[9 w; X3 `4 I- h2 A, u6 d
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 A& R; T8 i5 J! g; @+ m% y
]
, `6 b$ M+ h( k]
/ y+ a7 ?+ @" f+ h7 ?" slet j 0
+ `$ c" ^1 T0 G# d nlet note 0 O! M8 E2 G8 Q) d7 [: D
while[ j < people]3 z% d2 F& L' F' C8 L* }
[% t: }7 u" z# L, H9 [
if( length (item i
* R% h6 J' d2 n2 `[trade-record-all] of customer) > 3 )
* g& _! n" U- D4 ?[3 K `% C; `, ~) W7 [5 y0 E; n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* U6 S3 H' Q+ [" z; O* t1 J[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; d# B0 m8 T2 v3 t @[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 T& k% W8 b- F2 [' ^5 e]
- _0 p& n5 O8 J! g, r6 []
, [) E$ h: ~4 i' e1 Eset global-proportion note" g) i% b5 K2 b) e- |- t
]
1 O1 V( N }/ [0 m7 O) V7 |. A9 wend& h% R: e4 w7 e. y6 R( l" T X! c
& d9 _' N) \" o2 S, i" z, F
to do-trade
: E, u8 R: z5 |- y2 g: b9 g# L4 E;;这个过程实际上是给双方作出评价的过程
4 U$ g) x9 M* I$ E: zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* A3 Q8 T9 \/ P5 n5 o* b2 P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ u5 f4 I: T; Tset trade-record-current lput(timer) trade-record-current+ z% W* _% w7 d, l4 |6 j
;;评价时间
- d# Z# W/ }+ b8 P9 Cask myself [
q! N+ M0 b3 q# q$ e; ^9 O) ^update-local-reputation, I9 T: M: H# F1 P J& F# d4 D
set trade-record-current lput([local-reputation] of myself) trade-record-current" y, o/ J; v% Y5 Z: D4 M: T
]
2 t9 P- ]- @9 Fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) g$ L4 J' f2 q P; f8 K6 B* y;;将此次交易的记录加入到trade-record-one中( X# C! j% J/ _0 \: h$ S, r! P
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
( k* N( h& ^ ^0 _! ]7 Blet note (item 2 trade-record-current )
' _* [# L' b+ n# v- B% N# f2 g7 p! {set trade-record-current
* Q8 B) M+ Q& H; \. z# o. s5 Y' w& S" e(replace-item 2 trade-record-current (item 3 trade-record-current))% L X; I Y" a, M$ `
set trade-record-current
/ E6 N4 T9 A) I; }(replace-item 3 trade-record-current note)
! |. e. @/ O. \
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ask customer [% s& ?0 a/ ~+ g
update-local-reputation Q. O6 _7 a) j) F# I3 m
set trade-record-current8 Z2 p: M4 d b q" a3 R$ Z. Y/ R
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 Q; Q9 x9 g& I8 k4 x" `
]
' @3 |& `1 K- [" O2 v# K( }) E J
9 b" f$ p2 Z& P/ U
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- ?, ^, v1 c3 d/ n; G: l6 K* L
) e' X3 c+ Z) J5 {5 t! Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 z1 b9 \: J& l; v& v- D& W
;;将此次交易的记录加入到customer的trade-record-all中7 t% s! T# y# a) {2 O" T; u" X
end
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to update-local-reputation/ i2 O, V# A% i& {
set [trade-record-one-len] of myself length [trade-record-one] of myself
: s' f7 n" O/ E% [: w- E+ Z
; m0 ^0 s- i' L( m& A& Q
7 P9 O2 h3 Y! H;;if [trade-record-one-len] of myself > 3
: @! R# F3 ?4 M3 P5 ^) xupdate-neighbor-total; p a& f$ G" \
;;更新邻居节点的数目,在此进行0 |, e0 g7 U) ?, W; x( p
let i 3
1 V9 |2 J, S" H& W/ E! O# o; rlet sum-time 0
* ^5 K" H4 ^! ]# x. A1 zwhile[i < [trade-record-one-len] of myself] T, E1 O# I$ v* I
[! Q7 u# i0 {4 a( ^, m
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); C7 F+ j3 R) U/ Q5 I2 @" M
set i
8 K8 C; }* U3 o6 s$ v. u" L( i + 1)
* Q# s4 S- X7 L4 ` a/ U]
" B ^) b* X5 xlet j 3
1 c3 I" B* _& ]9 l: U$ p+ z1 Glet sum-money 0- {4 ]$ F) i, ^
while[j < [trade-record-one-len] of myself]
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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)
5 q* a2 F3 `5 Y% @/ Jset j( s4 G9 z9 m1 a' m. I' V2 T
( j + 1)5 l- }: y, @3 q0 R' g3 E' x7 V% V
]& H) H) k6 H0 `2 m6 ^3 c8 x
let k 3
6 Q) ^: T% |4 rlet power 0
# F7 L3 T& P# klet local 0, p% V5 Z2 B5 Z! F6 }7 D( s/ F
while [k <[trade-record-one-len] of myself]
" ?! a* N' \) J! H, b[
" V0 L! ^# e- `2 O9 kset 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) $ g# X V! \4 W8 c7 d' b
set k (k + 1)
! [; h4 K2 A: w# i]
- h- ?. Y* i7 J6 X7 Kset [local-reputation] of myself (local)3 n8 [" _1 W. b+ I
end J4 b( e0 o( }$ B& W. b( i& r
P) g7 [' d. K; M( d; F Q7 a+ ^to update-neighbor-total/ |5 k8 G( C8 t$ `; w1 j1 K9 }' B- z
8 ~. h0 q! q7 R9 l, B% H& Z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ @6 n5 O7 Y4 a8 `. E! ^- l2 q' @( t/ N' g
5 n$ v3 g! a# S9 `! L
end4 G0 p7 T. u* X* c
% B" R: u8 M- I8 j) J8 J
to update-credibility-ijl 0 m6 W( u) t T9 e. a' Y9 A1 t( c
( r3 W4 ?; F0 j t. Y' f;;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。, }6 W3 x4 U9 G z! o
let l 0; I8 p8 J; b2 f: J/ ^& E2 I
while[ l < people ]' O1 h8 y8 b5 ^6 J% n5 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# J6 T8 Y9 |. w
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# Z: v) F9 x1 X% Fif (trade-record-one-j-l-len > 3)
1 P- g* c: J7 a6 r. L[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-one4 t# a" i& ]1 R( B
let i 3
; D5 o" M8 ^% t: ylet sum-time 0: B& ~) |) f6 c+ z7 R* x5 \
while[i < trade-record-one-len]6 \9 w d( M n. m* W3 b7 e
[2 D* | k; a, H. C1 V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), }% P8 w7 C# e# F3 r# M ]7 y
set i1 y! U! e4 ^( h7 |' E
( i + 1)
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0 _0 f5 ]( _, v( M& llet credibility-i-j-l 0" \2 R. C# f, M# L4 N3 Y3 e
;;i评价(j对jl的评价)
) _/ B. t' C8 z* \# a; p7 Llet j 35 N6 m r6 g1 e% M/ [2 H2 H5 C
let k 4
1 x# v" {! \- Q6 ^ w; ?, Q" P, Jwhile[j < trade-record-one-len]
9 D3 {# ^' l+ u0 I1 Q k[7 v& D0 }5 z n( |
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1 A$ x6 t, B* m2 ~3 B0 r) w- h
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)
* ]1 v+ z, r7 Q0 ~# ]& K5 Gset j# L$ C, `1 a* k' f
( j + 1)
, P( r) L$ L; ^]
' Y: K7 t7 d" T8 V) f# ]4 l( Rset [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 ))
2 u3 G7 A" E7 R# j" \6 T. Y e- Y3 f8 P# w- a
! j/ F& a+ [$ Z3 n1 J) }
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( F) J) |! m$ ]6 v
;;及时更新i对l的评价质量的评价
( y* A* {6 `: E8 B) qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 J! t; n: X, |0 Wset l (l + 1)1 H) j" d# @# D
]
" b$ u j) t4 C: B. Zend, l! C0 `/ D% M* ]: p
# p+ R9 a* t) w x; i. Kto update-credibility-list
9 O% l8 i) Q( d" d9 z0 ]% Zlet i 0$ y$ Y& ~: W* V$ H7 o' V$ R( N9 J: E1 T5 T( O
while[i < people]$ Y, @1 i( r: M4 \3 {
[
z S6 Y( `& x: o0 w, h7 n( plet j 0' a7 c7 C/ u, F7 @4 B& B
let note 0! @ d2 j4 g! E" \/ ^
let k 0
+ i/ q8 a' C% ^# r5 m& b* B0 q/ D;;计作出过评价的邻居节点的数目2 V7 v; l* i2 x/ [+ D1 Y2 O
while[j < people]1 l2 H6 Y3 ^) j- Z! g" i2 I
[) ?, B1 T5 }; @+ x) v$ e, C- U
if (item j( [credibility] of turtle (i + 1)) != -1)
! [7 z% \3 }8 ^;;判断是否给本turtle的评价质量做出过评价的节点
0 h1 O5 b5 T- E2 W[set note (note + item j ([credibility]of turtle (i + 1)))3 O; Y: ^% C. d; `( g+ }: V
;;*(exp (-(people - 2)))/(people - 2))]4 P z0 y' q4 l+ Y' e# N
set k (k + 1)
! H6 F+ {2 r% j8 n) @# U]& K/ g5 B; `/ L# v; t: n
set j (j + 1)
* `" Y/ P! s1 k]' e/ `. |4 _2 d5 ?
set note (note *(exp (- (1 / k)))/ k)5 n; J, C0 x+ Y* l4 b& k1 R p
set credibility-list (replace-item i credibility-list note)+ h, ?. t+ s. m) V4 W* k( i
set i (i + 1)
1 m: C% t8 C8 `: c4 f- W7 U* t]
9 D7 }, L9 j. L7 g7 N3 Bend8 I+ k, {8 n# A% u" x5 r/ b2 K
- a! c/ k& ]; l$ Mto update-global-reputation-list- X0 ?0 u* ^, P
let j 05 I+ f% c2 U) N6 s" @* |) ?: p
while[j < people]/ y9 G: z5 z6 |* l5 Y7 T
[9 B* \& y9 z: U0 _0 E
let new 08 K* C) x) Q# U5 K9 J
;;暂存新的一个全局声誉: Y1 {/ K' z4 `6 Q4 }- P3 O
let i 0
( G7 p- ?) ]) wlet sum-money 0% t K, g+ }. c/ _: x$ M1 Y9 L
let credibility-money 0
2 q) S' m' b0 G6 o) V9 f0 M2 @$ ]while [i < people]; ~' q; o L7 k" D
[" v# q& Y, v- u3 e$ c- H
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' _8 H: o) {' I. B
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
Q- C6 R* {# O( b9 iset i (i + 1)
4 @; }$ `3 _* ?% J]1 r2 W% i3 s+ s
let k 0/ l6 [5 P0 N8 a% @( S: F& K. i8 P- Z
let new1 0 v5 ]6 H+ F7 M0 `0 W( `
while [k < people]" i$ e' x/ m4 R
[/ T! N" W+ @# J* U. `8 C) 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)
# z+ a3 k) j! ^- wset k (k + 1): v) N; i0 C% `9 ?7 G. I u
]
: W1 n% {3 w' [set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; ?; W2 T4 G4 ?( b8 K
set global-reputation-list (replace-item j global-reputation-list new)
& T7 c" u$ }7 S0 K+ sset j (j + 1)
/ s4 E8 {4 C- g8 r3 k]
* G. b, ^" y+ R* C$ pend3 G! D0 d3 V- v2 ]% M& q
& h/ x; k5 O8 G0 ~, N# y1 W
: C5 w6 O4 n" o
2 G0 \( n: ?1 g% H8 G* h) c
to get-color* n: d$ C6 v( Y( u% @
$ |) i" f7 Y- j4 M6 zset color blue3 n9 N; L+ \1 q% H9 f2 M
end; o) @+ y. N; N" R! V1 e" r$ Z
8 v( J' ?- K4 u. t4 X$ r
to poll-class9 c- j4 w* y: K4 {0 c% g1 P- @
end
9 [; y! d; {# h4 i5 U
( l" H! x( k$ M h& _to setup-plot1! Q. [. p0 [) k4 M
: \1 E# Y" C6 q3 \% |" d
set-current-plot "Trends-of-Local-reputation"
$ y9 r* Y- ~* V5 Q1 ?: w2 S
* y. r- R8 ~2 \ p$ c2 K. vset-plot-x-range 0 xmax
' d/ r2 k. ]% l1 H, E, s1 }7 B: B& ?: w) O
set-plot-y-range 0.0 ymax
& l9 O: K( Z3 z- V. P! K" w6 H! Xend
$ }0 y* e4 {; h$ K1 Y/ @0 O) ? I
# O0 D' r: P/ [7 g+ O- ?8 ^to setup-plot2
# H+ o6 u* T7 r3 n/ m4 I+ l
" h$ u) u- C" H- Y4 P# nset-current-plot "Trends-of-global-reputation"1 t6 S: D, K; |7 }: w8 y
% n( J0 i2 d3 r$ p2 K+ s9 u4 Nset-plot-x-range 0 xmax9 D8 ~3 w8 r5 \* `. ` F( E3 T
4 J( ^* c( F$ B$ |4 l" |
set-plot-y-range 0.0 ymax
) B- V9 b5 n- B. J# xend* O( p& @2 \! B3 h! ]
& _4 W: q& ~6 G, A0 h7 v6 G1 U
to setup-plot3/ c* ~" U4 l0 o2 m$ y
7 M' ]$ \; K. o8 z/ e6 Y- [
set-current-plot "Trends-of-credibility"( w5 z: v- h @0 E6 W, G: V! }8 G I
( r1 l1 L$ L9 e4 s0 t1 \set-plot-x-range 0 xmax
' X7 H# ^2 [* {/ }+ o6 i) @4 w
7 l- X% V7 k/ w6 S* T. h8 iset-plot-y-range 0.0 ymax
% F0 D7 D7 a( F, D. I; {end
+ F; x, R8 x9 @& u% o: v1 T8 A6 j) G# |8 h4 d# X
to do-plots
2 m% B5 v: c5 I* i/ ^4 J$ tset-current-plot "Trends-of-Local-reputation" x! N1 e% Y% M0 l
set-current-plot-pen "Honest service"" P+ i4 i+ j9 C8 _' C( j
end% E9 m! p+ n7 O9 v
$ F$ c4 F* W- j# p9 M& `[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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