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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
- z: l& h! T" {: H* ~% cglobals[
' x" i# v$ ~0 S7 Hxmax
4 v2 f/ M2 f6 I* [5 Kymax
8 O* E/ e1 C: A: A1 M0 Cglobal-reputation-list
% F) u4 o9 y% p, Q J* F& Q7 U! h, g
;;每一个turtle的全局声誉都存在此LIST中
3 Y. ?* {$ Z7 ]" xcredibility-list0 N6 d, j5 E, ]: n$ ~) P% n1 l- ?% V& S
;;每一个turtle的评价可信度- e# b4 p. Y+ ~' K- a( J
honest-service! S% Q# t# \. F ]4 Q0 @. a; v9 |
unhonest-service7 @* t' y& k7 ^( K+ N
oscillation
, g* a- e/ J+ A! t& _8 _, }rand-dynamic
4 v- e5 b7 h5 l4 R. P]
- ]" o5 L' E; q, p- G% N' U
8 J( b6 J' S0 Q% H' H# k4 ?turtles-own[
. T/ M9 S4 L" Ktrade-record-all5 f, [% n3 r* b* W5 ?+ s9 G0 @! @
;;a list of lists,由trade-record-one组成
6 G( c% W. v! E5 U6 e; X) qtrade-record-one4 S% i. r. b2 q0 c
;;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 \2 J4 a1 T# q: L* v
. \4 y3 _9 r2 r2 X; L7 ];;[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]]* k( a% e9 B4 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]$ j+ g' W I6 L) X
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. N( U4 r7 a$ H
neighbor-total/ m7 ~( E0 }6 C( b8 x: S: x
;;记录该turtle的邻居节点的数目. w6 s3 T! Z% a2 y" B8 T+ ~
trade-time
* U* {; t" c/ G; F4 X" ?( b, h;;当前发生交易的turtle的交易时间# h: c: O; k- S: v
appraise-give' ]% z$ o3 }3 T/ H
;;当前发生交易时给出的评价
0 o' k5 }- C9 }appraise-receive
8 f' O O; u; C+ o;;当前发生交易时收到的评价 d) w9 F* `8 d) O# [2 z; P
appraise-time5 B: h- O* m7 p; ]& [
;;当前发生交易时的评价时间' w2 T* S# g3 H! z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* D5 n; M- i4 `
trade-times-total
1 }* F% s! N U8 ?;;与当前turtle的交易总次数
& r! s; `8 {" C9 a5 f8 |trade-money-total
9 F1 ], l( I+ a c$ o;;与当前turtle的交易总金额; P, o0 c/ U5 Z
local-reputation
- T- V4 `$ Q J8 U: t; p+ @ p% _global-reputation2 }+ Q8 Z4 A9 b! g5 y6 Q* h |
credibility2 X6 R7 c8 R# H" [' o$ Q
;;评价可信度,每次交易后都需要更新
0 M4 Z# I, f/ o! g8 U" x g6 Ccredibility-all
# V. W1 L, H/ @( {1 Q;;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7 F! g0 h, K8 C
7 p! f* O2 b' d3 w% w;;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! Q; H, u8 w# p8 m' ~
credibility-one
; g: e. Y% N. @% U } x* T;;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 e6 H; _$ b4 ~; Fglobal-proportion n. D$ i' d6 m7 k3 r! ]3 H
customer- l; I. @4 ^9 m: e
customer-no
/ _5 W8 @' I1 }7 Ltrust-ok5 c7 p- A+ J/ q8 A' W- c: {; d
trade-record-one-len;;trade-record-one的长度% d4 b+ h! o2 i; z3 h" {
]* ^! e& l# K a( q
( A7 i3 b) r5 b5 Y+ a" l# j' S0 ?;;setup procedure# Q n" D/ l* b- D% F( ^
' _* X! n h' g9 G. Q) H. a
to setup
8 L6 }" ]2 q* X& m6 O4 N8 t N# ~* g& l e' j
ca4 {8 U" Q4 i, s" V0 s
: b% E% D0 G8 U2 O
initialize-settings8 X2 s* h& n7 q. P( x5 Y' j6 o8 h b5 V3 Y- _
# {4 a' b! l6 @/ v' n, l* R
crt people [setup-turtles]
+ ~* R( r5 Y" Y8 S$ p: j1 \/ U4 w \6 j0 \, X
reset-timer: |" Q! v% g& Y$ ^( o
" Y9 A$ r2 R0 |poll-class& J, p- s; `" B D. ^5 G) N6 d( Y. H7 L
& {2 J$ C( {! w4 \. H3 V% H, Fsetup-plots
/ z0 ]- l8 A z0 e7 L/ Y* J* b9 ]# ^7 [- V; S" z; M1 Y
do-plots4 W( d# Q/ a- m2 P# p ~: |' [) r
end
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- v- q9 A- ?" U) cto initialize-settings
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/ I. s" i( F% n* s* @set global-reputation-list []3 n+ n( o; M5 W
. y1 O/ M4 `! B5 A4 n8 G. u/ bset credibility-list n-values people [0.5]5 E6 U, }" `( Y$ P' m9 _) {, m
+ E% b: q: n7 |
set honest-service 0 ~' w& \2 |* V3 a6 n& r
0 w3 h+ w# Q4 J' f$ M
set unhonest-service 0
0 |- \5 M5 z3 n* ^0 z& b1 {3 D# G/ ^5 t+ D" [# c! b. Y, R+ C* o
set oscillation 0
' w7 |/ ]4 Y% P( {3 K2 `# ]0 X# t) \* `. k9 T+ ]
set rand-dynamic 0
; y& Z$ ?6 x* o/ Aend
9 M. p5 M+ R( j( ~9 n6 K; w; M0 M# g1 w% P- X+ n3 }# A6 W* q$ r
to setup-turtles 4 f z/ A; t; F. z6 r
set shape "person"
- s# O& ^9 _3 T4 k4 l0 A) f4 nsetxy random-xcor random-ycor
/ a# S9 Z0 v9 v3 y4 g+ T# L/ a( qset trade-record-one []
( P. _9 t& k: g5 b9 \' \! p
9 q0 F) t3 T; L4 [set trade-record-all n-values people [(list (? + 1) 0 0)]
+ m$ {6 L/ U; c8 {+ b7 ?/ F; I& R
set trade-record-current [] Z D. O# M& w# P8 K
set credibility-receive []
, d' {. f/ h. u, G4 ~1 gset local-reputation 0.5
8 j. H" \! G+ J- i( qset neighbor-total 09 @: V7 o7 D7 k3 \* V; b
set trade-times-total 0
) i; X3 h% Q( p/ o$ j' xset trade-money-total 08 d( s# `+ u9 W3 [2 Z
set customer nobody6 c+ B) n$ I9 I- i5 L. ?5 b+ c
set credibility-all n-values people [creat-credibility]2 b0 |' Z; G O# d1 ~- Y: e* w
set credibility n-values people [-1]
* W9 @ \' f, x3 `6 O$ Vget-color* B5 ?; m5 x0 E, z4 e) ^6 E6 p6 E
) Y" Z( C E) k7 ?( f
end
5 Z1 @' o! G5 q4 p$ b0 Y
# a8 e3 m7 G6 e) X) Ato-report creat-credibility( e5 E8 X8 y6 L' _1 w% S0 u2 q9 T, G
report n-values people [0.5] ?: {2 o/ m6 Z% d/ R) A5 O
end
) |% M$ D W+ @& C
5 g/ h1 C8 \* O5 f# L2 U3 u- y+ Tto setup-plots
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, H" {) R5 P! ?/ E& h1 Vset xmax 30
f$ O( ^9 a6 A' \! o& y7 F% r
; B. A; J: E- g6 o5 G; P7 {2 l$ Xset ymax 1.0- ^! c( V( C+ f; e* e
f8 p; o/ r; ^/ R% Lclear-all-plots1 X2 B. I: J: t% |( T& M
C% v( e. O& B! M) Dsetup-plot1
% O* ~% W- ]- e7 j. s% I4 D8 {2 Y
; O( O, s' g1 r T& Nsetup-plot2
/ ? n' e' K( D) D+ G. U
; D$ t* z; n l- D* @setup-plot3
* l, ]2 J7 ?1 [8 K2 U' U1 Nend( r) t+ w/ T& _1 z
! `5 C/ c1 O# w$ u& m
;;run time procedures: |6 i/ b5 Z& c+ \
$ ^' Y; U; L$ b" p+ Cto go
2 M. k7 i% [" ]0 A. ?( H6 F! D2 y, D% y; z5 l8 C
ask turtles [do-business]6 }: q. a5 J" G8 w1 |
end
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to do-business ) K a p7 T) P/ y( ? V9 O
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2 `. Q% d; M9 }7 @& L
rt random 3602 c: Y- Y) e! M* N3 W& }/ ^1 R
* q/ ^) Z) |1 _) H* ?
fd 1- ?/ E; O$ Z+ k$ j" n) w. B1 y
2 z! {/ N7 U/ y' f a o" Wifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here) R* l2 A6 b" N( R
, ^( i4 n& {/ \% q
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
; D4 F, v8 c) U- R0 O2 P[trade-record-all]of self7 j8 [' X, H- @4 j
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1) G2 Q- \1 A! T, b% d
[trade-record-all]of customer+ | K. k. V s0 ~& i7 e: a
) V: {) F; f6 g" s6 U8 ^% @, cset [trade-record-one-len] of self length [trade-record-one] of self$ P$ t( s- }' D0 l
* U: _" B0 k9 e A$ L1 {, Rset trade-record-current( list (timer) (random money-upper-limit))* J* o6 q' N% m& x; ?
1 I* A I1 T$ E0 v% } ~! xask self [do-trust]
7 I# K. J" h- l/ g2 E4 D# G& r4 l0 |( z;;先求i对j的信任度
# F. B! O0 Z) h/ o$ }) b. A- V' i, @. K# @4 R+ T% c' X
if ([trust-ok] of self)" c" _) t# l5 W$ z4 \* ~
;;根据i对j的信任度来决定是否与j进行交易[
5 D: x; i# m3 t. F5 Lask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
3 U, w( M' L- [, [! R1 v, o6 N6 y( Z; _: _' a5 _
[6 g/ U# A4 j' _8 o) B
5 l0 L) B) o/ B. }+ Z/ F4 }2 O: a1 m1 \
do-trade1 c1 k$ `; M, R: \. o
6 y H8 h) h$ S: Z1 u
update-credibility-ijl6 b Z3 T! f( F/ {2 L$ L
- F* O8 l, }- C% b3 d: O" Mupdate-credibility-list
. ]; O2 J) f8 g, X4 U
5 ^( Y6 }+ k/ t4 s) P2 ]- o, ?) ?; ~7 v, S
update-global-reputation-list2 Y4 D- B+ W" u' V# f, a! h! b
" }8 ~) R" |& A& V
poll-class% P. Z# [% ^" b- z( U5 P4 ?
, J1 Y6 T; l+ Q4 I. u
get-color) }& P* A' p; @, h+ k
$ P+ @5 `# _, C: D# W
]]4 x. v2 V f2 s: p( F
' t5 p% Q' Z- U- K;;如果所得的信任度满足条件,则进行交易; o3 u$ X% P9 Q) p* @. I7 t5 a! d
# y" k9 P6 |2 b# R2 D[# \( a; N! X2 q9 H% L2 u
3 z1 P/ v& t. q7 A0 c' I0 |+ w/ X* Trt random 360( c1 m- [ m- s% J! D N! e
; F8 j7 p! y" I$ |9 i% E) Ofd 12 T8 o X' F% J: u) G
% s9 ~. q0 A, c& c0 j
]: n) A" c1 B# A1 _9 b J
7 U& M) O7 U% ?$ ~
end
9 b/ V9 ]8 K3 D0 {7 g
; A7 D3 S! H/ P+ h# k6 Dto do-trust + y4 r. a, a( W$ o
set trust-ok False$ J! ~* U! k0 D7 s; f; l
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+ Q! n; u$ p$ Z' R8 x
let max-trade-times 0. G# ]( Y' s. a0 K0 a l3 I/ G9 D% {
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ h6 E, E9 \9 M% g0 O
let max-trade-money 0
' E8 ~7 w( J! {5 J8 T; V# tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) F8 G! \7 q+ c5 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))
$ O! m9 `6 q8 J: q0 N
d3 O' ~! ~8 \' y
2 z7 c: x: r: D/ T- ]9 a3 |5 T# ?get-global-proportion. B" j9 B* ]. @1 l. G
let trust-value$ _. s# V& f7 @. `6 I
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)+ q+ _ Z9 `5 `
if(trust-value > trade-trust-value)
% q0 s4 Z: C4 p( W5 p2 L+ j) s! G[set trust-ok true]4 p" v+ I; \4 j4 G% q; a$ E
end+ e. g/ o5 o2 U o" X
' Y |% j" J, G8 w( ^) g6 P
to get-global-proportion) i) d. I7 Z( j% w, L, A# @/ x
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 f# r8 R3 `, \8 d y% m[set global-proportion 0]6 y0 ^$ G/ ^$ M/ S5 y) G$ L/ a1 B
[let i 0
6 V5 G: @ d" g/ _let sum-money 0; K0 K* c6 y0 `5 K" `4 Q( q1 C
while[ i < people]! e- I% E8 t0 M2 x
[9 _' W A' u+ A2 z. N; O
if( length (item i
w3 }/ @4 r- t( z5 q[trade-record-all] of customer) > 3 )
2 w! k% e$ C* D- @, P$ U[6 t1 a; a% ]0 u
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 y; t$ [/ V" N; o
]8 ~7 u$ J; ], R6 ^
]
- o8 D9 ^" u$ l9 s( ]3 vlet j 0
3 L+ `; `* `6 _8 B& |/ Wlet note 00 D& V0 m- Z1 z1 r$ P1 |4 U, n
while[ j < people]
" T) A& H E- b% b9 ~# p[
; \% U) C2 M3 m. Dif( length (item i1 T! e5 y! M- j- W7 o
[trade-record-all] of customer) > 3 )
0 T4 A$ K. i: y+ g0 b1 K; p# s[
- @2 W- @8 v9 T% x4 ?ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& v5 q# D6 H; j2 n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* |5 o( N8 R# M( K$ o
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 }, g: w/ _3 G6 }7 @& B: p, ~: w
]! ]. M6 q5 w7 H0 _3 m% a
]
9 w: n& J; `6 s% v8 |. pset global-proportion note, v$ R. u9 t5 Q0 _; p7 H
]
' Q3 M+ i! g7 U( D# ?- zend
' p3 f) A( c. N2 K1 b9 X
5 G- ?* o& v1 @, f9 s9 c7 F, hto do-trade
( U6 u/ L, i3 M! D6 H& ]+ [;;这个过程实际上是给双方作出评价的过程
& c7 Y( X0 A; p7 `9 C; {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 t2 z. f* p, p8 k, b6 f
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
o% i2 @3 [8 d. F6 d% qset trade-record-current lput(timer) trade-record-current2 [* L9 U& {7 V8 y
;;评价时间" h: p/ z' p |) J
ask myself [& j4 @# P8 V6 p0 `& J$ b
update-local-reputation
8 }* Y; x7 \2 U7 T0 kset trade-record-current lput([local-reputation] of myself) trade-record-current( o/ @* e* o2 U# ^2 P; ]( y* n5 z7 _
]( P+ d# x! }& `4 _5 i& \+ _
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 L' Y( ]* ~% Z! |3 a" \+ l6 c: M
;;将此次交易的记录加入到trade-record-one中
$ b5 V5 B9 I: n+ iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 n0 ^% C( b4 ?, `let note (item 2 trade-record-current )
" h2 e3 B G% T# c# s- j/ T$ p2 i- Hset trade-record-current
1 ^5 m4 w9 q# o2 m: a& y# }4 q5 v! j(replace-item 2 trade-record-current (item 3 trade-record-current)), B- j9 Y% [( _( T
set trade-record-current2 C s0 A9 b! }2 t1 Y
(replace-item 3 trade-record-current note)/ h6 f# h c0 c. y& e
- D+ E4 q, O* j# d1 x# F; G
4 b5 U- }; G6 |2 T6 b' c6 Uask customer [
9 u1 A8 e' K! k" h1 C9 Qupdate-local-reputation: r+ E! T* `. A, Z) p) A$ S4 b3 p ~
set trade-record-current
* f) b) b6 [9 ~9 m3 M5 j; @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 Y, Z- V( m2 h1 O3 v]) L: J+ S1 H' v( A2 R4 R
6 S2 L+ Z* ]. n) ^9 s8 P
7 @. H7 j! w0 o/ T/ I. s7 z4 `2 F
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 f8 A Q/ j/ X9 U- s) O
0 Q& f7 G# m6 }/ E* E7 Yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
q u- U' O) Y& ?% ^0 H;;将此次交易的记录加入到customer的trade-record-all中
8 `/ s8 d, D, R/ hend5 r+ x. h6 r3 U( B; G& @5 x# G* M
0 @: Z; r, H$ y5 N2 I0 C4 j2 cto update-local-reputation# p) Q+ p1 l+ C/ J. ~3 v
set [trade-record-one-len] of myself length [trade-record-one] of myself- A0 [$ E C9 L# h* d% z" O
; `0 {+ _% G+ L- g7 H, K8 T
/ M- p3 R, k$ H& V1 _
;;if [trade-record-one-len] of myself > 3 / z' E0 I- c2 q# ^ I/ R M
update-neighbor-total" q- q$ ]4 {- N+ K/ o; O- i/ Q
;;更新邻居节点的数目,在此进行
+ Z5 u, ?7 v6 F+ p$ Hlet i 3
0 b+ Q8 C! C8 M: l Wlet sum-time 0
9 K! J! p: \5 [- H# Xwhile[i < [trade-record-one-len] of myself]) N$ ^2 ~6 A2 E* K7 D* q, j$ ~
[8 _2 H8 X- G" P% j4 e7 k+ N* W6 ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 G3 q# ]5 u/ x4 T" Sset i
0 f/ {0 q) @& v$ D: N- }4 O" v+ H( i + 1)
3 f( B M' w0 K8 Z9 L6 ]- E7 _]1 P- |+ i& p) o
let j 3. Y! @5 R' u1 {6 Y+ n; k x: @
let sum-money 0/ {" E- ]" ~5 U$ t7 l9 l9 G
while[j < [trade-record-one-len] of myself], b$ r s* V! {6 V0 K
[
/ \5 H9 C( ]% u% mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& Q4 e$ Y" J( M W2 k4 Jset j/ Z9 n) O2 n! I
( j + 1) E7 ^* T( y+ O
]
, _3 ]6 m) Q2 S7 ?9 ulet k 3
( N( o8 o) }8 l$ t, Nlet power 0" N; H- z3 s* R! v' q" H: |7 a, l
let local 0! }" I& h4 z+ ?" {: N/ @2 k
while [k <[trade-record-one-len] of myself]! [2 `4 N- x" _6 }* M
[
4 ^9 I/ [' {8 \- c2 Sset 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) ) S7 t$ \2 x% w/ F* y% ^ V" B6 O
set k (k + 1)
7 H4 k/ f6 p2 {& ~]( D; Z N3 r; x q1 J0 }) H+ P
set [local-reputation] of myself (local)
( j9 @6 B! ~/ ]' {' _( \end
0 Q# ^( s0 J% o& j- e7 }1 y# H! u2 v7 P) a
to update-neighbor-total
1 D* \: F- ^' Z1 `: W# x5 W+ i' A# ^* @6 t5 u2 `, T
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 y q1 {0 }0 i; ]2 |/ C9 m; D+ F. u# V: d
5 r8 v: i3 y7 r" v
end
& D4 t% u; z) b- `. i/ D- A! i: M, k1 x% N4 ^' ?/ _
to update-credibility-ijl 8 T7 u' O* Z, m' l( x0 t
6 d l$ s L( k5 R
;;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。4 k" _7 M. B0 x4 M+ u
let l 02 m7 k# I* E, R# m
while[ l < people ]
x. K8 d9 w. f' N$ d/ t3 H;;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8 i8 P' _* z7 K, e& J$ a) [2 l: @
[8 i, D# i( B+ O& }# S/ o
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); J6 T3 R0 u( e( W+ r7 T1 `9 {
if (trade-record-one-j-l-len > 3)
: z0 s6 R0 U3 b& c* N 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-one! W3 I) i+ L, I* T- R
let i 3) z4 @- x9 t ~" }6 [
let sum-time 0
9 v* @2 G9 g% I+ p' wwhile[i < trade-record-one-len]
+ U& @9 t: A9 q) r( `& l[
! {6 [2 |( c( V! |% h( Gset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' w9 ~: W5 F* q+ o. v# Z; h; ]set i: w0 z' X: {( x5 k8 J' m
( i + 1)5 A( h: e& k/ V; ?
]
% | B+ J& [+ `1 T% B% @# i; Vlet credibility-i-j-l 0; H; [+ ^1 \- e% L/ I; S) I& |
;;i评价(j对jl的评价)
6 D. g/ r( Y1 ^8 V' b0 e; clet j 3
/ ?8 D) s0 `2 S6 ^7 R8 olet k 4
( S% p/ t& A* Q$ |6 }) Iwhile[j < trade-record-one-len]* p; ]: v) g6 q
[
2 U8 C4 h0 { t4 Fwhile [((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 f3 P6 E: V: kset 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)
7 u( l8 W; L$ ?) L8 L- w5 x# Qset j
6 {' p5 s3 U; i n' M( I. V5 I( j + 1)
# E' Q* L3 n7 l1 `]8 R% e: J1 {6 I) h( O
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 ))
! L' v% t" N! H" ~9 y1 X. F$ w+ m9 j* Y& A
% \/ ~5 J" P/ j( n6 v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 D# P* k4 Z1 _4 e6 c, l;;及时更新i对l的评价质量的评价
( i+ B0 H y- O6 ?% cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] Y# j! W$ @+ f: _/ {; ?
set l (l + 1)5 e/ W4 [, K- r* N! b) C
]
) F$ H+ A5 _: @) Uend E# b) S5 ]6 s% }% l. n
7 J* N% N& A* u8 E! R' t% W$ Y% y3 C
to update-credibility-list4 `( Q! O' n, n- u' G$ p, j' i
let i 01 l5 r9 A( T5 R! [. A$ ~# l/ K
while[i < people]
/ e6 T) J. S- T- n) I; b9 q1 e[
8 \0 g$ l* p5 O v/ l0 slet j 0
6 c1 F8 k& f" v8 Y# P, ulet note 08 N) G. N. D0 r3 q% O
let k 00 \0 m! d# C1 Y. I' D) t- c) @
;;计作出过评价的邻居节点的数目9 h: G, M. j2 y
while[j < people]
; t8 r# b& Y5 ~& ?0 @" N[: ]4 L5 o+ g5 |8 x( G, O" b
if (item j( [credibility] of turtle (i + 1)) != -1)
9 @* x( Y! D- Q;;判断是否给本turtle的评价质量做出过评价的节点
. n$ {$ W4 a( h; |) Y& `3 @6 V- }1 e[set note (note + item j ([credibility]of turtle (i + 1)))3 I1 \9 y; ^! z: _
;;*(exp (-(people - 2)))/(people - 2))]
$ L6 ^, G' {8 M' v- [8 Cset k (k + 1)
0 D0 r$ w* N! q W( G( Q]
1 I" o: K+ Q. }3 [) h& yset j (j + 1)
# r2 ^( E* e% B$ F]& w" v8 L5 J7 h# S" Q$ @) I+ A
set note (note *(exp (- (1 / k)))/ k)7 C- T4 B( v) [
set credibility-list (replace-item i credibility-list note): P9 H3 F+ Q% l
set i (i + 1)
& H" U; h$ U, V8 l; [4 @]
4 V0 _2 C0 D( X: @5 hend
7 T8 }$ R, Y; u+ p/ p' W
! F% N2 E8 q6 j( C- u2 r6 {, W$ r: Pto update-global-reputation-list+ B9 P7 I& n% Z4 S/ d
let j 0
0 K8 P- n( V9 c( _& Cwhile[j < people]. \8 W& k3 o ^- U" p% k( v9 b
[0 e) v* X: @! z6 o" @- v3 N
let new 0
; L* I8 c, L( ]% s5 B' P;;暂存新的一个全局声誉6 r% e$ [! }# z
let i 0; _' I, O; v% T5 T8 S$ q4 j
let sum-money 08 ^ i4 d, d1 s* I1 i5 y- ~
let credibility-money 0/ W! b1 S* |, w, L
while [i < people]/ e) s( x6 A; _, E: y5 B) d
[
) ]; ]( }1 |' t" B5 mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) D# G: L3 X2 U0 H+ G( g
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. f1 s: P8 s! l( e4 }set i (i + 1)% F' Q- A! J, d! W" M
]
+ Z' B& i9 ^: m4 p0 _" clet k 0
* F0 Y; o7 T1 b; clet new1 0! m: I# |6 b! |" A3 q
while [k < people]
# _4 _5 q8 j# o- P8 e7 S6 t6 t[
. w( {2 e0 @: O; f, e, oset 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)
. U& @8 L) t8 E9 Cset k (k + 1)4 L- k; @5 d' B# E, Y
], n, J. A+ s! T( M7 @1 R
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - P2 [* O( O4 x3 L: U
set global-reputation-list (replace-item j global-reputation-list new)* [4 g' }4 t% ?9 j
set j (j + 1): |' ]3 b4 e& [; @; G
]! ]/ \; q) k0 F5 A: ]
end9 @9 x; J# V' j% t3 N6 u7 ]
/ Y6 \1 {/ s* l! E) e: s: x: [, ]5 H
- n# g3 ^' r/ R3 Q& s
to get-color' S% S- c0 ]6 u- R1 M0 ^' C" Z; L
1 H B$ j! Z+ l0 z& E4 }1 R+ Hset color blue
7 n" _+ k H: Jend
' ?; n3 a9 R( b7 h+ h% |3 j: ] m( \1 L
to poll-class
8 x: h4 H9 H( {2 o3 fend# n' \, G/ U) f# C: ?: M9 u
4 Q r! ~5 h; b0 N3 H9 p
to setup-plot14 t# X, J; d, w' H# n1 }" Z
! x( |7 W. O& ]% I% R
set-current-plot "Trends-of-Local-reputation"
+ k0 e1 Y3 q( ^# E" c1 A
2 Z, t) W2 z6 Q% k$ P- O- [- q# [set-plot-x-range 0 xmax ]- `- B0 r9 p" t4 t
8 n+ Y0 q+ [' vset-plot-y-range 0.0 ymax2 B8 P* B9 u3 A( o* P
end; H1 v9 o% z9 }& B, A5 W- m
3 q) _( T4 ]( k$ n
to setup-plot2
6 P! t6 J; W. w6 p6 W/ C5 Q/ C- h2 \
set-current-plot "Trends-of-global-reputation"
. `' |! `& b, H5 o; L7 T
4 _0 L- J: a. `. V5 e4 ~* Kset-plot-x-range 0 xmax, w5 _' y2 _( m! q! @7 K* c
4 P/ a) b7 }; G6 R& l
set-plot-y-range 0.0 ymax
- A$ q* Z# i: k: z5 z/ ]5 X. l$ iend
% X1 n- ^. u. v0 F% G2 M- p1 ?) E- E# d( J
to setup-plot3- t' @, B3 q. \$ N0 D
2 n; ]+ q4 s/ V: p3 Q5 E( a dset-current-plot "Trends-of-credibility"$ J* q. L( [) g" o2 {, z1 R) j- m' l) w
3 k/ \9 w) }( C/ M
set-plot-x-range 0 xmax( b. H1 \3 Z6 O+ f! V3 {- L
2 L9 ^: w/ v. h3 h7 f+ y' L+ P- c0 }set-plot-y-range 0.0 ymax: T; y4 |: B( N; q! \
end
" W9 G+ b$ d6 t. v5 o& G! p- c9 N; V6 q9 y( d$ D
to do-plots
d" ^; t/ B0 s7 rset-current-plot "Trends-of-Local-reputation") C1 `# h7 U$ T" X" ^
set-current-plot-pen "Honest service"
4 h: I4 X& }/ n4 p) f( G6 m- H, I \end
6 ~$ v! D& l( ~. b$ r3 M. T( ]: g" X! u3 B" M6 [1 M! c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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