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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 e- g- l9 J, G$ ]
globals[
. l. I! c8 T0 G# xxmax
3 X, |: r) a2 o5 [ymax4 E4 _* j' H4 J1 r
global-reputation-list. C3 _3 Y) L. R, x- C6 y2 C
4 w5 j7 W; |; B8 M8 Z) ~
;;每一个turtle的全局声誉都存在此LIST中# {& Y3 D7 f/ m' r0 m) X6 e
credibility-list! I' N2 m4 D3 G+ w
;;每一个turtle的评价可信度6 ?, J% T6 B! S8 M+ a' v' B( ~
honest-service
~( E# Z K$ g2 G! Ounhonest-service
' p2 \: u5 f$ t8 o# Koscillation
: M+ {6 s! C6 [& srand-dynamic
8 T- e7 Q/ s5 @% x& ?/ u" {]3 t, w; H* }2 ?0 ~ ?1 |
4 b) Y" [4 z3 f+ s+ C- Eturtles-own[
! u- R7 K, a. Btrade-record-all
1 h3 ^1 s; Q) B8 w2 N;;a list of lists,由trade-record-one组成
/ \* M7 F' F9 e8 E; N% M+ H9 L5 @trade-record-one
( f8 Z0 t0 ^1 p! i# X3 k. G+ 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
( c6 h3 I% {* x
+ x( T- g( a" O;;[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]]
( T4 r$ R$ M; w8 A" u/ @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]
1 g7 k) g6 e; x" j; z: Mcredibility-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
A1 a. _3 V+ Y3 Jneighbor-total
! B! t2 X( G9 e% ^( n! p;;记录该turtle的邻居节点的数目
0 @$ [$ u! v- ]. b5 rtrade-time0 w7 x/ D- O/ K8 W. I
;;当前发生交易的turtle的交易时间
3 o7 Z& i7 J. n& l. qappraise-give% r& I# [6 `, y
;;当前发生交易时给出的评价
6 l4 S8 P) x3 c: Y vappraise-receive' h V4 j) P1 ]$ V. R( K
;;当前发生交易时收到的评价* i7 j5 `+ Y' o/ U- Q2 E* G: W
appraise-time$ ~8 G3 t' s& P3 Z3 w; X5 D
;;当前发生交易时的评价时间5 A# u( w! |1 S) k' U9 f- X% K0 L
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: j% f- s2 K* F- Btrade-times-total- R. J5 y6 c9 g% E' z% }' e$ Z- [
;;与当前turtle的交易总次数
+ f3 }( K0 \( G5 |# h! H1 x/ J: w9 L9 xtrade-money-total6 y1 X$ r4 N: @* Q
;;与当前turtle的交易总金额
) u H/ \9 k5 ^4 n( Ulocal-reputation# J) s" L" M) d2 N+ Q' R
global-reputation
1 n2 t, Z/ k/ G+ I; P; Ycredibility
@* p+ ]7 ~% e;;评价可信度,每次交易后都需要更新
# Y; g! e6 P7 l0 e2 fcredibility-all& X3 x' v5 ?$ [
;;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
: A. W! `, W5 h* D0 z4 j; n8 {, b4 m$ e* [
;;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
- @8 q- D) x- w$ p4 |# @; fcredibility-one" U) m+ h* n3 s) K4 m$ n$ }3 t' R
;;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1 P1 k! V! c4 F% w1 E4 m
global-proportion
: n6 }8 L, X" ~& u1 E0 d, Ycustomer- b: I) w: V5 z9 D
customer-no
4 X: i* L$ K& `, C# d3 N) ttrust-ok
6 |7 d1 q7 U& R8 h! ~+ a7 _trade-record-one-len;;trade-record-one的长度
6 e9 w9 C$ n. i2 f$ @]
f. I0 @: e% H4 u8 N- M/ \1 }) d% d! A: Q
;;setup procedure
* ~* m0 R# i1 i( q: W8 a# \
5 V6 {$ z8 }# i" p: f% qto setup
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, F- ?, P3 H. y. ~& n, k- cca
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initialize-settings
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( [& m% B& a1 ~9 p$ D' acrt people [setup-turtles]
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reset-timer+ Y. y1 F2 `6 t9 }3 L# q
% y( Q' G# q) Z
poll-class% `' c9 z. @4 |
9 L3 a4 e- A- B5 z0 |' h) _setup-plots- n. B( W, r) L" ]/ S; k* F) d
5 ] \8 Z* [- A- O `; P4 L% vdo-plots
/ l9 ?7 _- W; w# G8 V F" o9 k, Tend- R8 ]" K4 D) @$ M5 O( y1 b
; R' p6 G& z& z$ `0 O7 ~
to initialize-settings6 {0 b3 v2 E+ q
1 `* d, @$ E# ]" S" Hset global-reputation-list []2 z' Q1 U# R3 `( V4 j
" p6 j& |! q: Q; C
set credibility-list n-values people [0.5]3 k$ \- Y' Y- I( c6 q5 u+ |
- ~! }4 g' S, ~1 M
set honest-service 0
# t9 [1 b% y( Z0 U' M; O- p
E0 e, j1 i+ t8 u$ [: zset unhonest-service 0
6 X) m6 W; X$ o: ]6 q, G* |. J* F/ v4 J; [0 u- p' t3 T! m
set oscillation 0! Y) a2 h P, K( ^" O Z
2 V/ t! `% Y Lset rand-dynamic 0
6 [3 _8 I- L+ e& H2 Z4 A" Tend1 {1 f7 |* V8 ~& V
9 Y: s) B. P) Y1 z- D8 X. ], Fto setup-turtles - \/ i7 c$ ]+ y4 y/ u
set shape "person"5 u& J1 y8 Q+ k; R. A8 H
setxy random-xcor random-ycor
$ R B% F) _5 O. qset trade-record-one []0 I& b# A" {( c% Q( ~
$ ]0 f7 c6 M' _& T7 g; c' F! ^set trade-record-all n-values people [(list (? + 1) 0 0)] 2 H U7 Q# o: U" C4 @
* R. q1 S5 q+ h# M. d+ K
set trade-record-current []8 e+ F, h1 w$ G* k
set credibility-receive []
4 {* g; w" {0 l% X! _2 k' sset local-reputation 0.5
7 p4 |" |8 b H' d4 U: g7 Wset neighbor-total 0/ k; ?9 `1 t5 S, |* [: S+ p0 o+ ^( R
set trade-times-total 0
" q* y! e5 g' o5 X$ n0 j( V Gset trade-money-total 0) C, Z9 p6 C0 [0 s2 P* [
set customer nobody% e. p5 _- L( M+ A$ P; G* j$ V
set credibility-all n-values people [creat-credibility]
- c } z( l$ ?* zset credibility n-values people [-1]: o* T# l6 @9 y6 F" g! \+ N& C; v
get-color
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2 x0 ~' s- y) S" W4 [' Send* C5 e" D! ]. b( x: c. y) s: N
" s5 e- ^; k! |9 T. X
to-report creat-credibility
9 T- @! w8 U8 N, T+ ?report n-values people [0.5]
# l# X# C0 O5 V8 E7 E1 k6 Kend% A, q0 i4 s3 s* d8 T! {! M
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to setup-plots* C; E* Y4 z4 |4 w6 g( T% @
7 K) _8 W8 c4 [" q
set xmax 30( a2 I+ U2 f& r' j& N) @" T
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set ymax 1.0" {; \! N8 h) n
0 o" o& G" \, a5 O
clear-all-plots/ s- V" g, V) i. [. g
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setup-plot1
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- D+ X# f: a6 ~setup-plot2; _5 y- s9 b% a4 O
( U I) l) {: K$ f7 j9 _
setup-plot3
/ Z8 @& v5 e+ n% P! o+ H% tend
4 Q7 a# P/ N6 N2 y, y8 B4 P$ o9 f# m d# h
;;run time procedures2 r2 v3 v" |# p: U/ a9 G
- P0 U3 r- D: Lto go
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ask turtles [do-business]
, Z3 f6 w* C. l5 _) X5 lend/ U, F( {. X( j. C$ V
& F+ t0 _. r! B* c' w( U$ P) k; W5 u
to do-business 8 A! n8 ^' H, D
0 h/ U Y9 {! K) K8 T1 r
8 z5 q2 x6 X, @1 q' X1 ` srt random 360! I- v) }: R' s2 \8 n4 D
( X$ H+ B! a7 T& c8 dfd 1
9 d( x$ K3 G8 O5 t' W& A7 O- W! S% C% `+ X
ifelse(other turtles-here != nobody)[4 o$ P: l9 j+ c
0 v; x' K0 Z; ], V4 z0 Qset customer one-of other turtles-here
% |) U9 l& w0 u1 |% H i, L4 c1 H8 |) A" U. ~1 i
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
; F) S" E* o+ w6 d[trade-record-all]of self' \$ F6 S( R" T( V! Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( Z3 ]) D3 t. S
1 |$ A4 b1 B, r/ a( A, `
set [trade-record-one] of customer item (([who] of self) - 1)9 Z4 [* o' ^" j* k7 H" Q
[trade-record-all]of customer# v. j4 i0 ]1 D5 M2 T Y8 s
2 C- N- P$ h+ K ]1 Z% [+ X
set [trade-record-one-len] of self length [trade-record-one] of self
3 S) q" S; P0 |+ j# }/ X' x" k$ Q% t9 i7 d
set trade-record-current( list (timer) (random money-upper-limit)) @& i2 J. \4 D6 [
) K3 T& u* b& C! U; \8 Fask self [do-trust]; |/ n. J0 P5 y7 u
;;先求i对j的信任度
0 l9 V5 k9 X7 \4 X2 o' `) O) A/ i: r
' J9 v2 O! V& M$ xif ([trust-ok] of self)! ~ {8 z. d! y5 {
;;根据i对j的信任度来决定是否与j进行交易[4 v6 X w. [2 u4 S4 y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
# `" d' R) h4 K6 G0 S0 i- b
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( O' r, U# B; b: A3 C* b+ ?, T3 _. l2 f5 R2 I, N, r6 p8 g
do-trade
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* k( D8 [( l* w5 m* J5 }5 ~7 w" ]update-credibility-ijl2 D% h+ F' y& v% I6 H
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update-credibility-list
8 a: ?5 M9 d8 m0 n
8 g9 _5 N0 S+ b- N' W% r R. J/ H
* B1 E2 a6 y: y+ x* g- e- vupdate-global-reputation-list% N& G: v( |$ ?, i! j+ s* F
* u$ Q/ |; W( a* ]+ x7 E
poll-class5 a7 T& C0 ]: Q* V9 v4 ~, _# {% l d
% O7 |5 }% S$ q* k& X% D& {! _
get-color. i2 M, n3 U4 N c1 H- f" x5 ~6 M* u
6 T3 D' ^" ?5 [$ d
]]
$ d3 e3 t" B3 g
/ ?( U( n* f/ B+ P; g! k R) E;;如果所得的信任度满足条件,则进行交易
6 |( F { s$ C0 |7 A, @; k2 |
* B$ F9 a1 T' X' U' E( g: E' Y/ Q[
7 |( Q8 Y- ^3 K: o3 S
$ `" |5 J5 f# \* u, O7 T# \rt random 360$ ~9 J4 F. |) E8 h" C$ K* c
0 Z( k; Q' k" }2 h0 B) g! _+ _
fd 1
4 e5 p+ L5 p0 O0 B( E4 S' ^8 e9 D7 }! ]4 p1 r- Z
]( a7 ?) R8 J6 q! G) k" w
( G& [9 h8 e' B" c9 X" k5 t. g
end0 G( ~$ h! Y+ x F5 A; V1 B
) D, b8 H5 X/ [- Y$ F* s, ]to do-trust $ j! t9 F& |5 M# ~' Q
set trust-ok False
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9 a$ x+ `' ]( Q: q/ M3 I) k
let max-trade-times 01 E! d) P ^; D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 w( O1 I7 l q( D
let max-trade-money 0
* A& N( N) e& W! q& ?foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 ^9 }: x% {8 h% ?+ ^
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# a; k' l7 C1 o0 ~0 \3 U9 i& O" E5 n9 Y' \1 Z
" C- E5 S) ^+ w' ]get-global-proportion
9 V2 i' {4 g& G; ]6 Nlet trust-value
7 ]5 G, x) U3 d! i5 zlocal-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 l7 y1 J; o5 ~6 F. `& n
if(trust-value > trade-trust-value)( y$ ?* d d7 K# e E
[set trust-ok true]( Y5 u8 g) { g( U
end
. u* u- S2 H- d7 U( k% |. P4 m5 ~* `( D+ E: P
to get-global-proportion
5 t- u! K' n. M7 P/ e( G; difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ ?/ E" E5 n/ D: f+ u" h- |/ i[set global-proportion 0] E+ h0 d9 F8 R3 @, E" e
[let i 0, H* {+ [6 \! W/ C/ C a
let sum-money 0
- P. z6 O: \* b' Bwhile[ i < people]
% d0 k8 V, A- ]: N$ O[: G" h" c3 \+ c( U! ~5 K
if( length (item i ?. l% a! z( {1 C; ?
[trade-record-all] of customer) > 3 )9 r, _+ K' ?3 o4 G4 w* W
[
2 t" P/ m/ x% k( \& d9 gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 H' u1 [/ g6 e" J/ E& ^$ ]]
# B* H0 x3 [/ Q1 y( J# E: p& x( |]+ x: I2 c5 L6 Z6 F3 }
let j 0
' Z6 t$ X$ d6 ?% U# nlet note 0
! o9 p8 g3 S* f, @8 B7 Lwhile[ j < people]
( H. X+ z7 t/ k3 l[- c; j0 h; M. L
if( length (item i
* r" k! v& C6 G( m f% `2 E3 I[trade-record-all] of customer) > 3 )
/ ~% L; V; B9 C+ [4 L8 J$ h[
3 T2 o- |) _0 ~' oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- H. N$ r6 I8 ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ s' T1 t2 \% L+ ^8 N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: w0 M* |& L$ I/ U ~8 m5 l
]
z* Z# {' H' w, M7 a9 b3 p/ a]
6 T6 W8 f# V5 h+ p" o6 ^set global-proportion note1 T& {9 M% @7 p3 z0 ~" a$ ?1 t
]
! a; }4 ~% O$ v3 p: C4 C, Tend
( p+ r* @# \* F7 u
* L4 C: p9 q! r- M3 Vto do-trade& }- t: P) t4 q: }" s
;;这个过程实际上是给双方作出评价的过程( q! t# E. k- \7 {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& N1 e. `4 u$ @. [ W0 Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! v+ @7 R3 F2 _. v- H$ Z/ ^3 Hset trade-record-current lput(timer) trade-record-current* j, C7 {, O8 m4 W V% O, g/ w9 n; C
;;评价时间
5 _1 w. E' K) m3 G, q0 Dask myself [4 H! z# X% c- i
update-local-reputation" F( y! A( \4 w6 |( x5 ?
set trade-record-current lput([local-reputation] of myself) trade-record-current9 T7 e9 f; \* u5 u
]
/ H# y; Z5 }0 i& S0 q4 T) fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ h# @" t- d( c( S: @0 b
;;将此次交易的记录加入到trade-record-one中
4 X+ m" t2 c2 I' [2 i+ @set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): V2 p' N2 n" o1 u4 a
let note (item 2 trade-record-current )
8 c, O0 S' _( E0 sset trade-record-current% [0 r5 n; D* f+ j% @! K
(replace-item 2 trade-record-current (item 3 trade-record-current))
. X- ?& Z, R/ ~$ z7 xset trade-record-current; q2 j" \3 t& N3 x% ^3 |# X7 h
(replace-item 3 trade-record-current note)+ h4 c% y' @( m3 d
3 H% B" [, K7 U% O2 l3 b: s
* F9 ~) Z. Y# x& ]+ H+ Oask customer [! q- L" i c/ W1 K ~
update-local-reputation o* V# w5 q# L* M5 R
set trade-record-current+ K! C8 P- `5 l1 l6 U
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & S$ Y. E6 q$ L: Q# Z: l9 d, ]3 v
]) i4 J8 @, T) g0 q4 n
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; u, Q5 R4 J- mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ r& j. t) U* W/ X
5 t$ U5 U8 C4 d3 R( a) eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! [6 {5 {$ @- z: k! p9 Y9 j! Y
;;将此次交易的记录加入到customer的trade-record-all中
. `/ v2 }9 t$ N9 m( h9 Q( [end/ V, x, t) z: Y/ {7 f
1 Z1 P+ A0 B/ U$ L1 t- O/ a2 v: D" kto update-local-reputation
5 k& b6 I' }% j: K1 v4 S9 tset [trade-record-one-len] of myself length [trade-record-one] of myself
) z1 G3 @' ?) G' D; L- z0 g9 N6 d2 W4 @1 A" l. D' F2 o, h
0 K7 K/ b9 [% E;;if [trade-record-one-len] of myself > 3
# }9 i0 h/ O; h- jupdate-neighbor-total0 g8 i8 d2 a) U. V5 E
;;更新邻居节点的数目,在此进行
% J7 u _- [& slet i 3: Z5 O2 X1 g4 _8 u$ g7 f4 }. {
let sum-time 0
3 s/ K n0 X+ ^, C, @while[i < [trade-record-one-len] of myself]0 r& A8 q I5 Z$ p
[
, a$ W& W0 _$ p% Nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
E$ T& t# W6 U* J9 |$ f9 mset i/ V8 E# h8 n7 p- @7 U z
( i + 1)" _! h/ \, L. Z J
]
; B# _/ ^; i$ X/ l: Y' d6 U" {9 Elet j 3
; ~* X4 I% v5 r4 i: M" e6 olet sum-money 0- t# c8 b) z8 ~/ R. i7 P
while[j < [trade-record-one-len] of myself]) u# Q( g6 d# M& E. l
[1 m1 j& W/ o1 x( l3 C: J; p$ g
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: K$ q% Z/ q5 X" kset j
8 I* y, \% }7 {. O+ f( j + 1)
z" y: j- d+ e]
/ u% Q% ~: E3 |+ {; ^7 _ qlet k 30 `( c; s% @7 Z- g8 t
let power 0; @$ d" S* K+ U, B5 L0 {
let local 0
0 e7 R8 \2 |+ X- ? I! Mwhile [k <[trade-record-one-len] of myself]
T8 X# J. z( D5 {: \[
" R& d4 d8 _; ~2 Q$ `! z6 Nset 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) ' R" }; y; r$ t! {. ~* p3 M) j* n
set k (k + 1)
U. n1 }6 w3 Q* b$ i0 M: P]
5 v$ t( n/ d6 l0 a" N+ u' E0 O2 B) [set [local-reputation] of myself (local)7 d3 o: Y' H! u9 G, u9 o
end
/ `% p$ e$ m- w4 }' G d; T$ h5 o f4 M, w' g f k
to update-neighbor-total
" k0 h3 b( u' X. Z3 A3 A/ t
2 `/ V2 V" F! M+ h6 F( s4 A5 S5 Kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 \9 n2 \- Z% q9 ^0 C& G _+ Y6 n* l7 |
* \- f F1 H+ p$ C7 i, cend
9 @' {& q% R! v: r' q8 f5 M! m. h( {7 T0 l0 K* w
to update-credibility-ijl 3 u- a" e2 v- }0 H: H; x9 G1 B
& u8 _- l+ L* D9 I& w; M8 a- ^;;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。
0 r# O l2 v2 J% w8 ]let l 0; E; W5 t# y6 {
while[ l < people ]! u2 X) l8 D/ X! E7 b0 |
;;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
. q4 Q8 m y( d( @1 }1 A[
* b7 A6 p: f* vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 H0 q* D+ x0 s: b
if (trade-record-one-j-l-len > 3)3 k9 w; X" P0 |1 }2 [# Q
[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/ \# K l5 ]5 c& ^- E
let i 3, Q1 g' n/ R( L0 I! K# ?
let sum-time 0: X6 ?+ z" |. w4 G7 o% M: i
while[i < trade-record-one-len]
; }; X, w- B! U; M5 g+ u8 h5 V[+ n. J' y$ r; A. {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* V/ n1 i$ o5 g1 W O! {( U. L
set i$ w6 E: o; ~/ v9 j, o- o; F
( i + 1) r w4 y$ v6 Q( ~8 w d! r2 ?
]% h( f8 R) @- L
let credibility-i-j-l 0
; Y& g4 P0 f+ E;;i评价(j对jl的评价)
$ ?5 o* ]3 Z1 `) Glet j 3/ _9 a. t$ H9 v( y s
let k 49 c8 u1 H5 s! N! o
while[j < trade-record-one-len]
- ^. A7 _1 n* ?[
, k8 Y+ K6 p9 e" o/ X& _' `# Vwhile [((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
! k; i7 m }. Y% e0 W3 {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 `! q$ i3 Z& d! O* z) O/ Y8 J
set j
( G2 j+ x. `: k( j + 1)0 c# U# p; Y( ~- J1 T
]' A% D1 Y' }5 a! f0 G
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 ))
8 u1 Y3 H2 r' e) c
7 C+ |, j4 \7 N8 [2 @* g. {% H, \! i: D' n& D
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 h& O3 G1 D% \$ q' Q. D% t; _
;;及时更新i对l的评价质量的评价0 i6 V- } q7 j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& X' S& R% q# d1 ]set l (l + 1), l. ~6 V- @% e" C! G( m
]" v" v( _# z: ]4 t/ P; ~
end4 U D, \7 H5 x+ `+ e
0 B( U3 c* L% ito update-credibility-list
3 \6 o' p+ A# x" o- ]# {. |0 D8 |' jlet i 09 o x0 Q5 ?* B2 F5 s
while[i < people]
% V- q. X) E8 h/ S3 z1 d* W[- C( v; G! y5 }% v4 l+ G
let j 0
; s% o2 r. e0 Y* X8 w- T" K' p8 _let note 0
, h$ k* ^% I# O0 u/ j0 u8 Clet k 0& ~5 @) p: Q% @( i
;;计作出过评价的邻居节点的数目
' ?" ]' _2 c4 K( h& cwhile[j < people], m; y2 m7 q; B' g0 m
[
! R8 c6 e$ g. y! O$ S( oif (item j( [credibility] of turtle (i + 1)) != -1)0 u4 a) u# j# h
;;判断是否给本turtle的评价质量做出过评价的节点
$ U4 X! M( v: {; p[set note (note + item j ([credibility]of turtle (i + 1)))5 l) @* {% b$ x- k+ q! M
;;*(exp (-(people - 2)))/(people - 2))]
5 e A- f1 P9 N/ S. k) Oset k (k + 1), l& v( |' T% Q; ?1 w
]- b1 B6 E3 p. I
set j (j + 1)
; a( [8 f9 ?4 c: b+ |]: w( c8 q- B o! K
set note (note *(exp (- (1 / k)))/ k)' Y( q' c/ F. x/ h& G7 E
set credibility-list (replace-item i credibility-list note)
. c- v- B, |0 aset i (i + 1)1 q* `' e" Q+ \7 T; B* F2 Y4 Q
]0 U) C: E: ~& t3 P. L( [. p
end
& J7 K* o& {/ v, v9 E6 e* G
. F$ D0 L) _* e1 F- y: I7 a( I" mto update-global-reputation-list& x+ D) x: Y' L3 L
let j 0
# w5 d, y5 m8 swhile[j < people]) d3 s2 R6 b1 ^# l1 P3 _
[
- Y& N9 d: {( a1 Z- klet new 0
' u o( b1 Y' h* r: c0 I;;暂存新的一个全局声誉' `' @1 [5 ^0 I7 n
let i 0
6 u* {6 I/ M4 h6 l$ }, |* dlet sum-money 0
6 c8 S5 u" Z' ? [+ Y+ X6 Qlet credibility-money 0
3 B) f3 ^' Q' kwhile [i < people]' n P; D" y% h1 @
[' F' Y" w/ A6 S! m- A& l8 t
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% I7 e/ d3 i: ^" g, L& Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. L& z+ p" e1 a8 yset i (i + 1)2 w: ?: ~0 l' M' e0 e& d% L
]
1 B. R7 F) A i' T7 ?let k 0: x" ~5 r1 X/ \ I; j: `; W
let new1 00 ~5 K7 W1 e, X6 E& W$ [. A
while [k < people], P4 a0 w6 G2 d+ W# @. W
[
& p+ K. n2 W$ |8 L- Vset 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)
! T7 x% `( ]4 u, F* xset k (k + 1)% s+ [! E. D' X0 v/ b* E. k: w/ v( {- C
]" e% _ U% n+ C9 Q0 W8 v7 N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ u n$ D! c2 S4 F* |# i( V' Xset global-reputation-list (replace-item j global-reputation-list new)
9 `1 G* u! n8 k4 Y1 \4 E6 }: T4 Uset j (j + 1)3 I7 B4 P9 i) A: P/ b! |
]
( i- p1 u* N. V$ Z5 Mend
4 j7 I3 d6 R8 M; v6 U
: i8 F( r$ W! O& q8 K& I+ h* P& E% t8 o2 q+ K, D7 ^( L) x( {
3 b2 N: `, p" P; Y
to get-color
1 o. ?2 s1 m& |8 e6 H. r$ k$ L( j. M v) y& y# ?1 Y* i
set color blue
% y0 [* _ C; i0 cend3 S% o2 M: G+ T, g
! {9 ], [ a2 K( Q. X4 jto poll-class) r) u: U, p: H9 d. e& x
end
; C& _4 y, X4 A4 R) L9 h6 c4 P" Q# V% q; S; t! Z$ M3 e' d* R) R( m
to setup-plot1
+ }4 n+ r% d* ]0 a& @6 d4 {# w: n, X& Z* D' c
set-current-plot "Trends-of-Local-reputation"
% i8 x* p6 i& s9 N) ~, V* }0 ^+ {8 O! w1 U
set-plot-x-range 0 xmax6 |# m2 _+ X2 {: p3 |7 l. L, N
0 ^( T# A% R7 @: B2 W0 Cset-plot-y-range 0.0 ymax {$ w8 G& r/ B$ v/ f' B3 I0 A- S# n
end. x' m4 t i, q& `' h3 E( z
: q% ]8 \+ y- x! X& G
to setup-plot2
2 ?! S, U0 l; S- Y& I, ~+ _( e7 Z+ G6 f
set-current-plot "Trends-of-global-reputation"
$ Y: H9 Y4 k9 A4 U
1 b- `) L7 D+ }% U C* |* _! wset-plot-x-range 0 xmax3 q) e8 z: u6 [1 Q$ d. s5 t& U
8 ?$ w; ]/ V+ Oset-plot-y-range 0.0 ymax6 N& C4 w2 O. u+ }# G! U
end
$ j/ s2 |$ K6 Z) E
2 Z7 w+ M" ^; K5 sto setup-plot3
2 e- g% J) f* u, I! b0 x1 U0 h" n$ v: s- k6 Z
set-current-plot "Trends-of-credibility"8 ^/ i. K1 h7 ^0 S* v, E; z/ Y* c
1 I# a5 G T0 L
set-plot-x-range 0 xmax
; c8 m7 i5 P' f- }
% y: R/ h8 ?! t4 }9 b" vset-plot-y-range 0.0 ymax2 T' Y8 ~$ r: m& t9 r
end8 ]2 k; H, ` V0 e; n4 ^
! z- O9 s7 s8 V( \- ^to do-plots- P' A% X( S2 i4 a5 I) w, o- d
set-current-plot "Trends-of-Local-reputation"8 L0 T# i z7 L4 J
set-current-plot-pen "Honest service"" P8 K6 K1 H3 Q- V) I: d+ @3 A
end. \ p) B, u( a/ p/ E+ O+ m
) S' z& q. r& s6 @$ z
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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