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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6 L- b+ }. v8 }+ q- j: v F% r e
globals[' O# w3 y# c# S7 {1 f4 |0 [) d
xmax4 \7 ^' L4 k/ U; b
ymax/ W9 p/ j6 i N: @8 \: _
global-reputation-list
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" p) Y2 ?$ D) O- d# D;;每一个turtle的全局声誉都存在此LIST中
) d5 w$ R) Y& u) Z- C% t, `. Icredibility-list: c$ B9 G, g/ P& [# `
;;每一个turtle的评价可信度
" M' b' [- W' m1 _honest-service) E* ~6 [/ G y% g" z, _; ?0 p
unhonest-service/ @ Y' S) Y% H* _
oscillation
2 e8 [) s! ^( f% c! Nrand-dynamic$ e9 E% p/ C3 B0 R
]" o, R0 |3 U! f; k1 | e
, C6 ~. ?) Z" _2 sturtles-own[
|4 Q8 j8 p# ^2 Q1 ctrade-record-all
3 L( f( f( m2 l) }( ^- u;;a list of lists,由trade-record-one组成
, j! ]7 z7 m7 Y) T0 Y5 ~9 J; V8 Gtrade-record-one
) h( t. X% e- m 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1 Y0 p3 L- `" v3 d& `1 l
6 D5 \/ y9 t" b! }/ v9 O- L+ `6 D$ s;;[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]]4 A0 [+ j' s5 S; B
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]
; C$ G- ~' L2 H5 @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, |' y, K$ O) H* W8 U4 Z
neighbor-total) W2 c7 ^& a# P
;;记录该turtle的邻居节点的数目
v) C4 E" P; X! ]! e. rtrade-time; D$ s( Z5 F$ M1 @& `/ [5 N
;;当前发生交易的turtle的交易时间
& C: i6 b- K& l! m0 N* `+ t: [0 ~5 tappraise-give
8 e" `# {7 n9 y1 Q/ x;;当前发生交易时给出的评价' H: ]* `4 ~) P* y9 h
appraise-receive
/ O; q0 B# L* h( B;;当前发生交易时收到的评价
7 \( ?3 C- A( c: w, I+ aappraise-time
; J" _) K# W) g% a5 @) R;;当前发生交易时的评价时间
+ L1 L2 D* z8 z/ T" p4 Ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉4 ^" M* k% W; X, H" ?) z" X
trade-times-total
" b/ @! d+ [$ l* D" x! @$ \+ k" q;;与当前turtle的交易总次数4 s* o; h6 {) r: a6 @ c
trade-money-total8 N+ f: S6 `, y! z" l. f
;;与当前turtle的交易总金额
. F* }' H3 _! d, Z; elocal-reputation2 R" W, d3 Y2 _/ z
global-reputation
/ z9 O, d$ S6 y7 U+ N }credibility6 M* ]" C) r/ D' y' j3 ?5 H
;;评价可信度,每次交易后都需要更新
" ~, b. f2 z, L" Vcredibility-all! C( P) { M2 C, n8 V, H& 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5 c! K/ `; g5 F* }- Q! E
- Z. o' _/ R. |;;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0.57 A, F9 ?1 k0 Y' C2 w, {$ s
credibility-one
8 ]1 u# J+ j' r/ M3 n7 x;;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
7 S. w2 Q6 z1 F \4 lglobal-proportion
9 R/ B9 s6 X1 Q( R. c5 xcustomer
6 f2 t, \8 j. v$ ]* S$ f- Acustomer-no
8 x9 n+ V$ q; y1 ftrust-ok
- F2 W* b, N9 D1 q/ Etrade-record-one-len;;trade-record-one的长度
+ b* O, \- V) ]# g2 w5 t]
5 C/ H% u* m, E0 b1 a) h* r
7 R4 `2 w0 \& ~9 X& V. x;;setup procedure
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to setup
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. L b- j" h* D0 Q6 [' t! kca
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initialize-settings
5 x- s- P) l1 ^/ z" J. R/ J
8 W6 w1 L+ f Q2 `8 Ocrt people [setup-turtles]/ X6 N& C6 w5 A( R l
" I; M1 t, { ~! W: h* K8 M) vreset-timer+ F p3 p& ^+ I& X9 `
6 S+ m8 j( A; G8 o2 G8 A3 Qpoll-class! \! e7 l+ h" O$ I
; U( t# Y2 y' L% C& {setup-plots
, l% w+ ^2 w3 J ?+ b2 h! N8 `
& E# z; T) q% D" N. sdo-plots
. C4 h, L; b, c% U& w. aend3 R- v& c0 D" t1 c) }
& \4 C' X! L) c' q4 i! {to initialize-settings+ F5 w* x& Y6 |# j5 q/ s2 `( X! G6 L
+ `* x2 G* B& E$ e
set global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 0
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set unhonest-service 07 M% i) S3 d( H- a7 G0 @* {) @
- A$ a1 C' e+ Y% i6 E2 v
set oscillation 0
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set rand-dynamic 0
/ j7 Y7 ?8 _, l) M# V: b0 aend( r0 X4 p# Y! \7 m5 b
4 w& k. J* Y2 Q& S6 d0 e3 {* l+ K
to setup-turtles % n& _! Q7 f5 Y1 Z. u6 Y* c
set shape "person"
# |; P$ ^$ l& r1 Dsetxy random-xcor random-ycor+ o- A2 y, {. o) M- k" r2 {$ L: H7 J' z
set trade-record-one []+ _* ~7 @/ K% u: D: x8 `) X
+ g6 R( K. N- x* `
set trade-record-all n-values people [(list (? + 1) 0 0)]
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3 P3 a. s6 {, ^set trade-record-current []
3 J5 M! V X" |0 t2 M2 Vset credibility-receive []
* b! ^# D) \1 l5 l, Dset local-reputation 0.5
{* w; a. b! C% J* |$ L/ T5 nset neighbor-total 0
E0 Q3 c/ [2 a9 S# A5 q2 A2 zset trade-times-total 09 z$ s* b5 X* V
set trade-money-total 0
3 d2 b, h+ F6 C2 ], B0 iset customer nobody
9 n* m# |6 D* k" M, u* `6 Cset credibility-all n-values people [creat-credibility]
9 V1 I; `6 U. kset credibility n-values people [-1]
: q/ h. A \, \0 Iget-color8 L6 J7 d! O, v9 Z- L9 E j
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end
1 Y0 f$ o1 [9 d+ J: l3 ]
) p1 b# o7 X$ c R% C, k& y, T, |to-report creat-credibility5 Y# |: H O) `; m
report n-values people [0.5]
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6 u6 l; Y1 Z$ R* N5 bto setup-plots' }4 X* Y+ P2 L
4 T) H% L$ _6 C1 M+ \
set xmax 30
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set ymax 1.0
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clear-all-plots
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$ k4 T$ z( C) c$ }setup-plot1( q% E( ?7 k& d8 e( g8 S
9 W) K+ Y ]" I9 W( @( q9 O, Y1 ^& ]setup-plot2; R7 d* d' p8 G: s& N
7 n7 T* ~0 z: C, r; usetup-plot37 Z6 ]9 \+ G' H5 u4 N$ `% K% v
end: O! f; u, X3 F3 b L9 X0 j( u; Z
2 A3 Z: g, a/ V3 B! U
;;run time procedures' b1 O/ }, |0 D. ^
% }8 x { L9 Gto go
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ask turtles [do-business]+ \+ S0 `# L: S6 {# K8 `
end
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$ B% \4 ?) H- e: i1 Y5 `to do-business
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0 t4 V7 \; a% y: _7 ?6 D b/ C
rt random 360
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fd 1
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$ w$ V: ^2 X' ?3 Z' j) N0 Uifelse(other turtles-here != nobody)[1 c) s0 D9 E" I- ?9 \+ S- ?2 ]
8 Q+ y. D6 t) |2 e. z+ g# {& Mset customer one-of other turtles-here
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$ i) z1 i, @% d. r" h5 l;; set [customer] of customer myself9 L; K# U+ s9 x5 Z/ c7 k
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set [trade-record-one] of self item (([who] of customer) - 1)
& P/ a: \; _3 l& y( P p[trade-record-all]of self
/ P3 T: |# Q0 r- K# N;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 z1 ~% n" }) @3 E* s
4 n" F+ y# t- [ Vset [trade-record-one] of customer item (([who] of self) - 1)) K% Q' ]- b; v% d5 o! S1 p/ E' y
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self, z' Y& Q- w6 Q v" e
6 Q+ V3 K V+ `1 A4 I6 N5 M
set trade-record-current( list (timer) (random money-upper-limit))$ o! C7 r) t( I: ?0 T s, O' q9 J
) A) c' i3 f3 z" l( B5 qask self [do-trust]) G' w8 J A& O7 s, q
;;先求i对j的信任度4 Q1 O% @& _) G- E
5 h3 K( `" G% g' E1 b
if ([trust-ok] of self), k% H. W5 n z, F" s l# x
;;根据i对j的信任度来决定是否与j进行交易[
/ U0 O! u7 D+ O0 L1 P. Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 h" Q6 f) }6 k" z7 ^
$ V9 m' A+ [/ A7 a+ V[
) {4 |9 [7 s; B Q* c0 b4 U) C4 K8 k7 S
do-trade
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7 \4 m4 e: W* ]- r8 Q" i# @+ A; aupdate-credibility-ijl
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3 b7 B. q4 s4 R/ Y- Q7 J$ lupdate-credibility-list: m2 ?5 U7 c2 f( _3 L
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8 P) y/ p* V4 h. i# dupdate-global-reputation-list
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poll-class
+ ~3 O/ A) z& l" g1 W% A4 R' P3 S" A: x/ |. f L3 d2 h
get-color( ]8 {" [/ F2 j5 {
& ?9 ^" _* m% l" i- \* R
]]
8 G, K/ O* o0 l' d% ~$ _/ t1 c# B1 ?" ?: m/ B# P. g% b9 O
;;如果所得的信任度满足条件,则进行交易
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! {" b* s1 s$ w, E1 b7 ?, s[& K- i$ K6 _) A% x$ Q. x
5 {2 i5 Q" {1 l$ a8 frt random 360
$ h+ I( P C. h( B* l/ p) b, n4 L6 M
fd 1
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] D- `5 t# S* g- K/ K; X
8 J" T) e" V) ?- {3 Rend
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* `& G5 |3 J0 K: Rto do-trust ) j; P. Q6 Y# y( O" y2 `8 N X
set trust-ok False
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) n+ Q" B) P3 g4 s4 V' }
5 ^; f$ b \5 b6 T/ N% y, xlet max-trade-times 09 i I6 @8 d# |, O+ D+ G( H, r- i8 A
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% E: B9 [2 N: M( J" C. d
let max-trade-money 0
# x6 ~: Q0 P: z" c& yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 {) Z, R$ ~1 |- U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# q, E' ?8 X, U0 u9 l8 J! [4 s ?3 f& Z1 G% K# c# v( _; Z
4 H& Z6 c8 b- u+ dget-global-proportion
- Q/ q8 U; r# t" [0 ]let trust-value
) V9 @ m; P) \2 llocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
4 p+ M& M7 [ H: B4 Aif(trust-value > trade-trust-value)& h* n7 @' O( a; [% m' }1 L
[set trust-ok true]
" g0 a; c3 o- Aend
/ G3 i3 s" W6 @& l/ D
4 d9 `& D3 N! f- r5 [9 ato get-global-proportion
o' \ x% W2 z! gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 ~8 V, E! I3 H/ K[set global-proportion 0]
|+ o4 H" H7 w- i[let i 0
, x, t2 d8 L2 C8 H: r3 Blet sum-money 0( F( K0 t# K# H+ U6 k6 y% o
while[ i < people]2 B) I. I5 a4 J7 X, \
[8 v& j$ C! ~: n% `7 m) T
if( length (item i
( f3 X" w( q: V- U8 c1 k[trade-record-all] of customer) > 3 )6 ^; b- i# \7 t% p: G6 d2 V7 x
[
' {, ^- y) }# G2 F7 Oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 k6 |6 G7 N R]
2 |1 ]/ l4 }0 Q8 `4 H7 M]
9 V! p5 r) X0 b3 K9 A4 f4 }7 d0 jlet j 03 \$ T; k$ R3 Y7 C, x
let note 0
/ F+ l$ N8 q z9 T4 z# z# Uwhile[ j < people]
. Y/ @% q: h3 }: E1 q& f/ r9 x0 X$ p[0 z, k) u- O; y+ \
if( length (item i; T' Y2 A& F/ c
[trade-record-all] of customer) > 3 )" I1 f5 R. p' A4 E
[+ f6 Z+ a1 O8 k6 e! K4 r6 f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). a) m3 F( S/ ^9 C* z6 ]
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, h+ C! u" {2 t5 E, u/ y# f[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: d$ g7 \, j$ l5 `* K+ G4 e]
$ o' {0 u: j I]
7 M* n4 X8 q6 h8 lset global-proportion note
5 c( i# v/ Y/ B6 Y6 G5 ^]& L0 [3 O% h/ }2 u8 d
end
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to do-trade3 F1 A, b1 I4 }9 M$ S ~2 C5 ]
;;这个过程实际上是给双方作出评价的过程
/ x1 v4 M$ A9 f4 v7 yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' T8 \/ S8 m5 t/ d2 S: u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" v5 w0 l* j! sset trade-record-current lput(timer) trade-record-current; X( C. g- n1 O4 Q+ a0 `. I2 h
;;评价时间
# x0 d$ Z# L5 fask myself [
! T _% H6 I; k9 Y$ V z9 S. mupdate-local-reputation
) T' Y5 @. L8 kset trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- g' Y; n. w' O, u7 z0 A
;;将此次交易的记录加入到trade-record-one中
" d& k Z" Z4 ~3 e, Q$ b% \+ ?' Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 f4 ]7 R# T, [4 l- g3 V
let note (item 2 trade-record-current )
/ s' s" m6 X. u+ l, Bset trade-record-current; B5 M9 n A3 ?* k0 w+ R
(replace-item 2 trade-record-current (item 3 trade-record-current))% V, U: z1 a3 Z/ M
set trade-record-current3 L# T( g- U5 L$ f/ A" D# R
(replace-item 3 trade-record-current note)
' [" Z# n, m( i8 y. N8 j
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ask customer [) a5 n" e- I3 C. q% S' N) v" E
update-local-reputation9 D6 d0 r5 c( P2 P. \ q6 v- l3 R$ J; Q
set trade-record-current( @+ G5 w6 W Y2 ~" T
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 f% O! ]1 T8 ]4 F
]. B* B0 B, x% u! Q, m E! W
% b1 L) L# U. q& _
. V: W' I: y8 D( Q* [! g
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
6 c! k4 s, q5 e2 o2 q4 W' r9 B4 f. P5 X; U( c3 B! U" y0 w
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 J: K7 s: q$ z
;;将此次交易的记录加入到customer的trade-record-all中! K; G1 B$ r" l% y0 x; |) m
end1 X) L4 h; @# y
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to update-local-reputation3 W8 k. T; i: K, B3 D# F
set [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3 ' D; u, [$ }1 a
update-neighbor-total
) C0 @/ ]: W$ Z# D6 o- N8 Z;;更新邻居节点的数目,在此进行
0 U: C) \' P$ `- N% Klet i 32 u" f2 n N! b0 ?0 Q* p
let sum-time 0/ \9 G8 x, S9 S0 V. z( `) n
while[i < [trade-record-one-len] of myself]5 ?4 P1 m8 c7 f+ V* G
[
, {# c c. N# S9 j$ z9 Tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 c, L) r+ h6 m
set i
) d+ I; U4 A @' w2 n) }( i + 1)
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9 X# s% R0 U8 [( Ilet j 3) X& Y$ e6 t3 }4 Y/ a. a
let sum-money 0 o0 p/ V9 a; g, a' ]# p9 `
while[j < [trade-record-one-len] of myself]
% _9 c( y$ Y5 J9 P[1 X C% ^/ M! J* N% S& g$ L/ v- O
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)+ k q8 }/ {- b3 v A, b# f3 D
set j
/ E+ b/ J" @9 g }+ a( j + 1)
% R, n1 l% x7 T7 W2 {]- }3 Y& b' Q' P2 l$ q- v
let k 31 e7 H2 ?8 b* I0 C' K, f
let power 0
9 g% @& J# v) G- l5 N( ^let local 0* E7 x, d3 }8 D2 t
while [k <[trade-record-one-len] of myself]! o' J% _# n# V' @
[$ P' W+ M$ }0 |% \/ w9 I
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) . B" _( [( I* D W+ @* Z
set k (k + 1)
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, I" ^- h7 C# Z9 E. tset [local-reputation] of myself (local)
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to update-neighbor-total- D- B. `$ w* ~# D4 y
4 I2 X% d- d" _& x' o, Kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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+ X- J- G! L b' b- M+ h3 c* n8 h5 B+ C# c/ h3 o. ?
end
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% X+ A9 ]! c/ G' o7 N2 u1 G6 pto update-credibility-ijl 8 K* F8 u) \7 P0 ^* L9 d: F; o
% H* I: e# L; M; j' S8 k: C;;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。
) B* Y" i2 u4 n$ J- xlet l 0# K& P# {2 c( D4 r5 @7 ]3 _
while[ l < people ]
! F5 {; ^# q; g/ Z7 G h. ~# ~( M;;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0 ]/ Q. ]1 w6 J; w
[ Q7 O' T' i2 I. P
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* J+ Y+ c0 u, E! B, [if (trade-record-one-j-l-len > 3)
6 a7 c2 g/ v" y[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
- a' u' G( W' `( h4 X" Wlet i 3) {8 R" e& q3 p% j: I
let sum-time 0 B$ A/ L b- O3 J* n# M
while[i < trade-record-one-len]6 X: o5 u9 ?7 |# R" A0 ?4 W8 p
[
2 ~. B% N5 u, X) |2 Aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# P' r+ H% F. Lset i
/ R) A, I) @) E p6 b( i + 1)
" ?* g. X6 ]1 ]8 ~6 A]
5 L5 I. G9 |- ^3 l9 l* \% Ulet credibility-i-j-l 0
, q" r- h; i9 R$ q7 X/ y7 \7 J;;i评价(j对jl的评价)
! ~, l4 a. |- Slet j 3
$ h' p+ O: R& L4 o% d9 `4 u9 z/ `let k 4. r3 u+ M8 H1 e' p
while[j < trade-record-one-len]
5 x$ Q0 g) \9 y& x6 y' l8 O[0 b- D- W. b+ w2 g* m9 d6 ]7 \
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2 x/ n# `* K! N9 O
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)/ x v% v) q6 E, V' c; \
set j
4 X; C" e/ x. C. R7 H" k3 `( j + 1)
* n L* ]+ [4 x6 L8 Y6 n* i]
. r) M: k4 H' z8 a% nset [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 ))& P: E" L+ A: T. I2 _$ R
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( R* c( n' l0 H h8 S/ ]1 Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ t$ t+ `( Y$ q! x) s;;及时更新i对l的评价质量的评价( u) b G% Y6 O; ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ _7 Z5 \ y( o, u& g2 x" Iset l (l + 1)/ s7 S; _; b _1 w6 P5 \
]
; {9 ?+ c6 _4 Q* vend5 R2 a, N' Z9 O7 i
. n M0 A5 T$ ~/ n7 K
to update-credibility-list
/ d! T) w4 N/ O1 w1 X8 C! zlet i 0
' g% U( ?* W' V$ p. N* V1 c+ @% ?while[i < people]
$ X1 K" P3 s3 Y) v, h( d$ ?' p& Z; o[
* n' S' {7 ~- b+ U/ J- Blet j 0; R3 f; O/ J1 ~7 ?, N% M- ?3 ?
let note 0) d' V6 ]$ b7 u( T0 Q, V
let k 0! P4 H; r: X0 [, r! u
;;计作出过评价的邻居节点的数目
( t: o, t( K$ R! |# Gwhile[j < people]
& w. u7 f4 J1 s) Y: p[- i1 {. o4 w$ {$ m2 W' M0 e7 G, ?% }
if (item j( [credibility] of turtle (i + 1)) != -1)( i% a/ I$ ^& c( k: W( s+ {
;;判断是否给本turtle的评价质量做出过评价的节点4 D* t1 u9 {) u# P. a# a. j$ E* q
[set note (note + item j ([credibility]of turtle (i + 1)))
1 H- ~. H6 a8 k& l;;*(exp (-(people - 2)))/(people - 2))]
7 e$ k3 `+ b Nset k (k + 1)
' Z+ y4 V7 X6 ^( ^4 k7 o]* v9 O- ~* p# Y5 E) I- R
set j (j + 1)
0 J8 a* T8 z7 U/ y4 K& i], Q+ z$ d6 T* ~0 O/ @
set note (note *(exp (- (1 / k)))/ k)- p# z( P- ^" O0 ~2 y+ [" h* [
set credibility-list (replace-item i credibility-list note)
3 x# M/ E9 m- b7 {$ j# t4 cset i (i + 1). T) z# i5 b& p" V ?
]
2 A7 U! m# @6 M+ U4 J& Uend2 T. g( B) X! `9 L) V
, U6 Q) ?5 i" x0 q9 z5 ]
to update-global-reputation-list
4 e6 W" [' t J- [: R% F( r" p, Mlet j 0
' b* Q* V" T1 ]5 F5 Y* s, T" Ewhile[j < people]
& B ?$ T/ c+ K[
. f6 E+ p X$ k" g A% [* H) \let new 0
$ Y: K$ |- V& M;;暂存新的一个全局声誉, C& N" n+ q' ~! Y) ?/ P) J9 e
let i 0
, `% f% e: u d; Ilet sum-money 0
1 O4 y2 B5 H8 Clet credibility-money 0
; O. `& C3 b) `while [i < people]
, b/ d8 l+ N2 K[) a! O2 \- ]2 a: z7 M* O/ U
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) c5 i' @2 I9 k1 O, ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! c" N' x; ^2 S H" q( j1 ^& b& Iset i (i + 1)
2 r% U+ V; g6 a7 |& F]& F% w- i! K3 \1 ~ x2 c: N/ s& v
let k 0
, r! e( |6 t" M5 z) N; o% p8 _$ alet new1 0( n4 N1 ]% b8 k2 K+ v/ I
while [k < people]+ m% N! v! ]9 n$ V* C' m6 f
[
3 I" ~- q; g& M2 Tset 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)1 ^# w; ^0 V v( a, o( `" E# M# s
set k (k + 1)% Q# G$ N9 H" G7 Z' A
]
4 N" M: }' y2 Q4 uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 \' X" x) A! Y: Wset global-reputation-list (replace-item j global-reputation-list new)3 k: [9 A3 v0 j
set j (j + 1), @0 H4 f+ h5 j% Z
]# V, b' c+ g' j
end Y( R/ k; J) t- w
o% F ~+ f- {$ G8 Q! j
- d# v4 |# d( C; g+ ^: S1 D% x! n
$ V% q: a o6 x3 g" |+ xto get-color
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. X2 n1 J) E2 Z4 Sset color blue3 c: M2 ]9 m. L! t4 h# Y2 u
end1 X7 W4 t$ O P2 ~; u6 v, H
- e* S3 e5 B$ C1 d: A. _" @) Sto poll-class. L3 k- U3 f% S
end" x3 p) ?! {9 g7 X7 ]
+ H- }' L: S# p" J5 gto setup-plot1
+ C* K3 g. h0 _& D$ x5 X$ I* m5 |9 S6 E. }0 E
set-current-plot "Trends-of-Local-reputation". a& K5 W7 Q. F
6 ?" ?$ M- ^' ?& B* W9 `set-plot-x-range 0 xmax0 F8 v" S, g# ?6 O0 t
8 \" z5 E$ @. [9 k: c5 w+ O5 d
set-plot-y-range 0.0 ymax% W& i& v) y, g- ?3 }0 N8 s4 @
end
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to setup-plot2+ X% f2 g$ ]- h( a: l
; B# I1 D) U& c: Y* x
set-current-plot "Trends-of-global-reputation"
# l5 J9 g8 ~( N$ e7 D/ l6 `5 h% `0 t' \0 H% g9 a9 x P
set-plot-x-range 0 xmax: ]* o* H' G. a3 `' C( T; Y9 Y
. A+ M0 J/ Y2 ~/ D: B
set-plot-y-range 0.0 ymax0 @7 p5 r$ X# _3 U$ F
end
9 A% F- j1 {% B! h" t' C( K" s, i: i! M u- N: g
to setup-plot3. Q' l/ g0 ^5 K; K& o9 a3 Z2 v5 [5 J
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set-current-plot "Trends-of-credibility"2 j9 V" x: Z5 V$ e
0 T# B( J5 M; ~" V% j, Cset-plot-x-range 0 xmax
' P& l- H5 b% }; a d: O+ {9 @
$ V! H1 Q* t/ e0 N6 G% H2 Jset-plot-y-range 0.0 ymax
3 w: E# L6 D/ }# jend' \; n( Z7 u6 r6 g
& }- c8 z% P- _( I& ?9 F" N' W, Eto do-plots
6 x8 ~0 Q+ g! M) e0 Z: zset-current-plot "Trends-of-Local-reputation"
, d- c2 I. U0 ^5 C; _set-current-plot-pen "Honest service"
! B. o) C W0 \$ F( n0 Q9 dend3 b% A0 f2 \( f' A5 G
+ B2 m% E9 T+ R! r6 H( j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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