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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; J" P [1 J) }! h1 }+ f
globals[
* o% h; z t% Gxmax
3 d2 L& H* \. q& Eymax2 h9 }9 D' w7 O8 u/ t! d
global-reputation-list- r$ y8 b% p% @( E
& a: V ~, U" ^' Q- ]9 Y* m& r;;每一个turtle的全局声誉都存在此LIST中0 V* @$ J5 a, ]' @. }9 R+ U
credibility-list0 [& X- y7 D6 X) i1 D
;;每一个turtle的评价可信度
- ~5 W/ g& w+ R% a' H9 J5 v Jhonest-service- |! h% {8 W, X! J
unhonest-service, x7 F' w( P" q/ W8 F$ S E4 r
oscillation
- ^$ q2 `! }* ~! irand-dynamic' g4 e7 j( `3 \* Y B
]
/ d( n+ I0 M5 u; | \: F! L/ |; C6 d+ ~9 T" K0 ^& Z4 I8 A: g
turtles-own[5 j5 ?" T$ Y B7 v. S0 Z. z
trade-record-all
) V3 {5 W% ~; X, `;;a list of lists,由trade-record-one组成
. n( c) n' S3 Z# Ntrade-record-one
Y8 i; f- c" A% q" W$ z# 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
6 J, |) P% L) v; ^! R' C. A. X! ^: ]( H- J8 i- J* P3 w
;;[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]]
* ^6 j* N5 J! ]. otrade-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]
5 p) a4 X/ Z+ q1 J# |0 Z) ?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
# N5 F" e" M$ S H# s2 Rneighbor-total! F% p2 U# \) U% {8 N' ~1 `: @. H8 ]
;;记录该turtle的邻居节点的数目
- o7 b7 K; M' l9 L; x: dtrade-time8 ~6 a& Y7 ~0 u+ ^0 J
;;当前发生交易的turtle的交易时间
' W% T7 s3 I, o' D% T: i. v# gappraise-give
% c5 f4 R" T7 y, B$ \;;当前发生交易时给出的评价3 V) L/ S+ |. X' a V
appraise-receive# h: Q9 f; v6 ]0 U; L" C
;;当前发生交易时收到的评价& G/ I( ~ \( J
appraise-time3 C1 ?+ i( j( G) n& q8 A1 z
;;当前发生交易时的评价时间
, `0 _, O u4 N* t0 f3 y' jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉! R+ U% `* v) ^% N. K- g
trade-times-total$ f( d! t& _: d% j) `3 z6 w
;;与当前turtle的交易总次数
% F) b e9 p, ]0 Atrade-money-total
: T7 o0 t' P2 d- B;;与当前turtle的交易总金额
6 a5 U, z4 h, s+ ^local-reputation
' u/ g% z6 z4 Q( h0 E) E6 u* q: wglobal-reputation
: A, c& o# e$ j# ]! W6 Y. x8 W3 @credibility
( g! F) a" j1 @; Y6 T;;评价可信度,每次交易后都需要更新; m- S; O2 {& g, i+ Y& c
credibility-all C* J3 e, |& A2 k3 J0 e
;;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
% L4 S% k# w: M0 Y
, }2 o1 i' u7 Q6 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
) S5 L) C# G8 o$ E2 l& a) Ecredibility-one( t& x( M! l4 U) i( |
;;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
! T. B& D5 D2 l8 v" Aglobal-proportion
# r' L u o5 Ccustomer5 N4 F& ^% p2 k8 M) s
customer-no
" a: c! A" i' d0 ntrust-ok
0 L0 F5 i; d/ {/ e9 [trade-record-one-len;;trade-record-one的长度, A! G0 ^; n( ]" L2 ~
]
2 ?3 R" ^: \9 p; b! N. l1 i: w/ ]2 s! d0 J: d
;;setup procedure
% K' J& P) s; U d- V+ Q# Z
) `7 H+ x* Y2 F. U. H4 fto setup
) t) I+ v/ O: t/ q0 C9 ~; O
& `; o0 ? e7 [. Rca( [1 ^6 J5 ~$ J! X# a+ `0 _
2 S7 r. m0 I D) k
initialize-settings
6 [0 w) X4 J8 N# k* u! X/ I0 ~% M7 g& C
crt people [setup-turtles]2 O; X7 `. r" n }! g3 H l
2 s4 F) {; O. w1 V7 Freset-timer5 b) L! k3 G' O7 _- w
. o2 S$ u" K& D6 B2 N% H3 K, S$ ]
poll-class
4 k' z4 c. h" p7 n7 d) Y3 D6 [( [) W6 [
setup-plots
6 {* _9 r$ H4 b+ N& O: X |4 {6 X7 v
do-plots
+ ~( L/ x9 X% l7 s! E I- v" M) l! ~end& |. W3 v5 x0 S. t/ e$ Q
2 G1 _8 h( L( B4 s5 s t, zto initialize-settings
+ u' W# C/ w1 a2 E
* v8 e, r' T d! ~set global-reputation-list []
! q% T+ k* [ g5 h7 L# X3 l1 E+ ]* I
( X+ Z3 t" b7 F. lset credibility-list n-values people [0.5]& Q; Y+ r( Z" A/ q7 d( J
1 e' N1 d! T4 n) [0 M7 r- {set honest-service 0! E' \: X1 _+ i1 p
8 j0 Y$ @* L0 uset unhonest-service 0
# ^0 e% v' d( ]' z
; B! J. {( ~2 c" a0 a; J, w0 aset oscillation 0
/ F, m. U$ t1 ], N) ^+ G% D$ y$ Y# B, p8 n
set rand-dynamic 0+ ^" ?, {# b! n1 \8 w" c
end7 S0 a+ w4 C; B/ J; s% a2 z$ O
, n" F( b/ \8 p6 Y5 mto setup-turtles
) z; _4 q" c5 jset shape "person"- _4 ~1 C: k y; T6 C& |
setxy random-xcor random-ycor- |$ k0 p, ~" U
set trade-record-one []
5 X* P6 N8 I' e0 L
& M9 `/ ]7 w! @% d. z7 gset trade-record-all n-values people [(list (? + 1) 0 0)] + u K+ N0 V& s
- O$ p% t# \8 P0 z
set trade-record-current []" L' x% ?' [6 a$ L, i
set credibility-receive []
2 C& P, Q' j8 Sset local-reputation 0.5" ^# C7 l" o5 C# Q
set neighbor-total 0, I! F! C) ]/ v6 j/ `
set trade-times-total 0, F. [0 p7 U' U. R: i R
set trade-money-total 02 _3 Z" }! D h6 I( r6 ~/ n4 z h' Z
set customer nobody0 F2 ~$ R8 b8 u% ]$ N5 f B* X
set credibility-all n-values people [creat-credibility]
1 E& c# E; z$ v1 ?6 [: uset credibility n-values people [-1]
9 j# w- x$ d$ tget-color
% ~- q" _$ O/ d* |) z& ^4 N, H% Y/ u3 g$ V0 c
end
3 U: z& U- B: H- T& O2 h) `: K) ~0 Z8 o% z
to-report creat-credibility- e. T8 h$ Y0 P3 u- }; J
report n-values people [0.5]. f, F, O- m4 B. Q0 U
end
( ~$ o& N% {* O: Z0 H: a
& I6 E6 L) F# Y7 Fto setup-plots
; P& L+ d8 A2 E2 B n& ~
' n8 O3 M: J; Tset xmax 30% H' B' K; z8 m- X, W
+ y4 N6 E$ h0 w, C# h2 H, R2 Q! p
set ymax 1.0; l$ f, F/ y( _) V
* ~* d: [" d& H7 o4 w$ ~' [
clear-all-plots
% {" k+ Y2 n$ b: g4 |; Y# x4 ^" A# ^; r6 m# b
setup-plot1
. h6 O* Z0 W1 n+ _1 h% c
* ^; w( ~. X6 V1 [( G! ]0 E" Ksetup-plot2# E/ Q" a+ c6 i0 w/ U# {! h% j# ?! x
. X8 ]; F0 { B6 d7 K' S* ssetup-plot3
8 e T6 K! s0 \/ _( s2 u4 p9 tend8 i$ J: J# S+ n/ ]2 ~' M
: w- ^1 e0 f' b! e. G;;run time procedures0 n6 h0 O7 v$ A* e/ s
2 L G3 T1 p4 q+ S1 p, v: xto go
- l7 m) I8 k" k/ Y% ^+ u! G, v. ?+ ^3 U6 p
ask turtles [do-business]$ w+ ]& N6 Q4 H: Q; [7 O& Y
end/ W3 j- I( E9 k) B% \ }
" V0 r% ?+ r& p. m* s9 F- gto do-business
1 G& v; b V( T# Y% E5 V& |4 z9 t
+ r! J. ?5 m% G9 [; @ v3 `1 a9 ^4 I% o. m# ~
rt random 360
' H. U: `9 t0 p! U! Z
. r1 f8 a/ S! [# S0 q2 O& }; o; \& qfd 1
3 Z: m4 d" L" b5 q! O" E( o' ]& x5 Y2 N) B1 p3 V
ifelse(other turtles-here != nobody)[
0 \% @2 `: A: a1 h7 T
: _2 _& O; A0 q1 C1 ^set customer one-of other turtles-here
- T) m; G$ x+ W0 l5 l) h: U% M: `7 P9 t7 ^; W, \, l2 U5 v
;; set [customer] of customer myself9 ]" V, {/ Y% L' `; a+ \% B
1 J9 H* f) d" z `4 l6 E! ^set [trade-record-one] of self item (([who] of customer) - 1)
, _7 S% f1 I" m5 ~# b" n, A# W[trade-record-all]of self; E0 m! B+ x2 c# d. Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
^- ~" n% f* H+ h0 C% D# b9 e& `! R: Q
set [trade-record-one] of customer item (([who] of self) - 1)1 _8 [$ t- K3 C
[trade-record-all]of customer
9 W" I- p8 K, {9 K3 N" p0 Q* U3 k3 W7 O; R
set [trade-record-one-len] of self length [trade-record-one] of self
+ [$ v O$ \3 i- o" x ~) I7 v6 B5 j$ J# [+ o% O5 G
set trade-record-current( list (timer) (random money-upper-limit))3 ]8 S0 d( t8 }( U6 J
; S6 D# e, P: e/ t( Uask self [do-trust]5 Y" z0 p* c- Y7 W
;;先求i对j的信任度( V* p7 w8 O# B' @6 P, }$ d+ j5 A
# H7 L1 t( ]8 M9 e; b. h+ ^if ([trust-ok] of self)
/ r9 N x5 W& A8 ];;根据i对j的信任度来决定是否与j进行交易[* ~; p* j* b6 |1 u1 W/ S, W$ |2 r
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
' d$ q6 K. v1 U- A9 m. J! h1 C7 J; D7 W* ]' H8 ^% u
[
2 x6 X( S. m; }! x# H* N, H/ R" Y; B6 K: c2 ~
do-trade9 t/ h# v z" Z- X; ~6 Y% R
" f# G' w$ o' m5 b
update-credibility-ijl8 ]0 c: d. {3 @3 l* a j8 S" K
7 J W& b$ b. O) C% |1 c
update-credibility-list6 H( K$ K- b& @& N+ f2 w
+ j9 D7 T; U0 k# Y/ j; ~
9 P- C$ d* [ U" ^7 S, V+ q
update-global-reputation-list" @- J& E% P% Z/ M5 X0 |: c. I* D
) N! y) q& V I6 C2 ?! ]+ ^
poll-class
1 [3 |7 \7 z. t1 ?3 `+ o! u
; L5 B7 J$ M# e! d' }$ d# S4 t4 Zget-color
, ^0 I: j R0 C
2 \# M; _2 b3 N7 s]]
! `4 a c: J2 g7 X1 D1 F# ^
8 v* B5 @6 f9 c$ `+ `5 h- d;;如果所得的信任度满足条件,则进行交易
& c4 V; X. d+ `/ `& Z: s6 o6 E6 G$ y; J6 t' o" p- l9 j
[
% h0 |) U- z: Y3 ?# n' a V5 ]" h. q, X1 d8 A( B5 p: k! G
rt random 360& J, f" @' p4 B- |
1 N4 j9 p$ y0 P' k5 `$ G( Ifd 1: J7 G' M: m& K& j
3 |( F7 l3 X7 \. `* H; |]
2 }' i: J3 z/ O$ Z( j
# W, W$ v$ J; l( s2 D7 vend/ {1 {9 |+ K% R2 J- v3 y
/ L: o% J# }9 x! e3 S
to do-trust
- V7 R8 x- x2 R% S: E& E) \! t, Wset trust-ok False5 j/ E' V: P; x' \ e
: V5 t; l8 A( ?/ @0 g9 i+ ^& W; r. W* n& ~5 E# q
let max-trade-times 0
: A$ K4 H5 _' m- b+ R1 U0 mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ Z4 w* K3 }+ I( j9 q% U+ B1 i* W9 Z
let max-trade-money 0
+ ~6 z4 f) G6 bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 V- ~& p( V. ~
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! b* h# G: n9 C4 A& o7 Z5 y. w( L r) y4 @' s1 G# a
. b; x t1 U7 _7 ^, s/ U' T* \, Wget-global-proportion; `" o8 ^. g# ^
let trust-value0 z1 R- [- `& d$ P9 d
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. T2 ^; C3 I4 w; X2 R
if(trust-value > trade-trust-value)
1 ?/ R# H2 b4 o j* ^0 z0 f[set trust-ok true]
% e0 f& ~# I- U ] N7 Gend+ j) @% X: J/ S) r+ w* Q1 O
6 A- a" y; w2 Y+ i' ~( U
to get-global-proportion
5 r+ e/ }; n; _5 V' _8 X& Cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): Q9 W$ o& i& W
[set global-proportion 0]
- ]: v) D/ S# B' @[let i 08 w. R. }7 v; v) o Z- D/ n
let sum-money 0% X/ x3 c0 e( j- x" z4 W
while[ i < people]& c/ [0 }0 x1 z2 x/ U9 W
[1 Y1 [# n6 K# D; y9 _
if( length (item i
8 ~/ L. w& K# x3 {& _1 z, T[trade-record-all] of customer) > 3 )
/ y5 r; v7 n9 v" r* }; i: r$ i+ K6 i[
" l, K4 q! s# o5 F) V1 y4 Y6 Z' eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% {3 H; L" O2 a% ^3 ~" X2 v& l]6 n2 G: n$ s% L9 v6 u5 E' F2 S Q
]
u0 K" c, N. }* klet j 0
; D# ?& k- B- wlet note 0- ]6 e( _0 r! A2 I2 ^
while[ j < people]) J. L' C% y& U
[
4 X. a2 ?8 k1 `8 `if( length (item i
5 D* Y2 u9 Y$ f3 L[trade-record-all] of customer) > 3 ). e! h( e3 X+ ]7 C/ O: H2 r
[" h- u5 \. i% S& v8 G' s7 d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 a. K% x/ f( C! y2 O# ]
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 ^3 s- q% r$ x$ K& d
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 G1 Q, f1 T, B
]
" }4 i; W$ b3 n4 n" N( U]
0 ?. M$ Y: d# f5 [0 Aset global-proportion note
5 q' _1 p: q5 [+ e]
/ V3 W) y/ \) N d3 u( U6 N6 }/ [end5 d2 g3 a9 ~4 N4 K, i* R1 v8 u
! E/ @! _6 W2 k, H4 c4 i
to do-trade
. O2 _1 m, m2 e! v, `3 H;;这个过程实际上是给双方作出评价的过程
7 y( ?; B/ {8 u; t4 G- Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" ~; y' C) [" H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, r. |# p* r, W" X- S) ]% i
set trade-record-current lput(timer) trade-record-current
. r% @8 [7 f9 p5 W; [* b; n$ o;;评价时间8 n* g6 q% z# t! _
ask myself [
1 k$ u' S8 b/ J) J I xupdate-local-reputation
+ U4 c. L$ v0 }5 fset trade-record-current lput([local-reputation] of myself) trade-record-current
1 I1 g8 J# O/ k* y0 G, H- f, o]* l% N Q8 a `& q# P( B9 R3 f
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 L5 j9 B9 T( [/ T* U8 H;;将此次交易的记录加入到trade-record-one中5 j0 }, j3 r% s9 P; S. \" C5 E
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' j; }5 k: Y/ m6 a% Y' j$ B3 m' a
let note (item 2 trade-record-current )
$ ^2 l8 L6 l: a, W2 g8 z7 fset trade-record-current
* N0 V( t4 j. _(replace-item 2 trade-record-current (item 3 trade-record-current))
# ^2 Q8 e9 N9 H- R2 r Rset trade-record-current8 J# h6 ]6 I$ ]) v" ?
(replace-item 3 trade-record-current note)
, B6 c) ^0 x+ J
6 m% S' ?( E) i7 ~ Z% ^( o3 O8 v8 y5 M% F: L: n0 o
ask customer [
$ b8 L a9 a6 J, ^2 _3 vupdate-local-reputation
( F2 W/ O! K9 P9 M" Q; M% L8 oset trade-record-current, U& ] d4 D. K; r. o x
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 i/ C9 X6 T1 R$ u: Z3 p, T0 g
]& _# _3 W! J8 u
% G# k! L( ?) H- m* t- ?5 K( S3 m% _- I/ |' I0 k& o+ S
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 p$ D+ l2 {, q# n! I' F0 h
& m1 ^' w: O& c' \) Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! w0 T& b1 \% h6 J4 R$ ~9 s
;;将此次交易的记录加入到customer的trade-record-all中$ q1 \3 C7 E, U N9 V8 s
end w A# ]6 u# }8 J& ?
* z/ N& Y# `5 U' Xto update-local-reputation
+ }) y2 c# }; c. Eset [trade-record-one-len] of myself length [trade-record-one] of myself
+ W/ z1 f9 d6 V: M/ `
$ K; j0 G! D6 J+ u( T+ m% d+ u7 R; {, g; O
;;if [trade-record-one-len] of myself > 3
+ @% r% _; C* I) h5 M5 vupdate-neighbor-total
9 N' C0 I* a# `* C/ M;;更新邻居节点的数目,在此进行
. G+ ]5 Q% I" i& ^$ j' ^let i 3
8 x; w3 n) G, u7 ?6 ulet sum-time 0
, W u: U8 J% a) k& X) R, Rwhile[i < [trade-record-one-len] of myself]& i" V2 J! _6 n: x' c% A
[9 G; g" `" A2 l2 N# V% @
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ C S: ]; D* t) lset i- b$ m/ y9 L' Y
( i + 1)
3 Y# ~* k( F4 K* y" w6 S8 n- j]& l. A! I. i$ D+ K8 v
let j 33 l( \' g% y3 x- t. U# i8 R/ D
let sum-money 0
2 ~/ N, a& D# x1 Y! z/ g$ d) Cwhile[j < [trade-record-one-len] of myself]
4 G, T+ d, a6 ]6 f9 b" L[
2 Q2 U l; `; ?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 o9 p9 D0 L9 k; q& U
set j' b" L2 N/ a3 C' P4 y
( j + 1)5 Z3 h4 x: _8 @. M) D% N6 | [' j ?
]
8 h: g8 L; W( v3 j# zlet k 3
! I% E( K2 ^2 Ylet power 0( a s& j* ~1 ?8 I. B6 w9 Y
let local 0
% ]3 k( U' Z" k! [4 @while [k <[trade-record-one-len] of myself]5 h* N* K& W- ^: `7 e& A( n
[
! x7 m8 v1 V' `* {! |) H% t, S7 y! Zset 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) 9 V7 M# _8 p' |5 i' I
set k (k + 1)
4 E5 @7 k2 a1 r% j5 R/ @8 D]
- Q7 v% t; o, hset [local-reputation] of myself (local)
' M+ v O! p" E: z) T. gend
/ [& M6 _3 T5 R8 N; ~* u" |0 T, [: K8 Z+ C3 u3 ]# e4 i
to update-neighbor-total
+ ?* \" \7 \7 u1 `# e% Q- J/ p: d# U7 S/ Z1 y9 K) f+ [+ ?2 }
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 P2 Z" i% X- s, g3 u" @/ D9 ^3 u* S, G
5 `; S1 V; {5 z! ]5 f# J7 o
& a a$ Z" d1 lend
# i, u3 @, Y, b& c" X$ L0 _
. C0 y' L m- K* Mto update-credibility-ijl 7 u. x: ^2 U) \+ }2 [0 ]0 N
$ c8 k, i8 P n0 R) D0 p! ?0 x( 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。9 R, X! w: U R# z& F6 d
let l 0
/ f; r* F' x, P- J: X( U; W" A: c* {while[ l < people ]
, @( Y/ v# G- Y- \" w; I- n) f;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 h! q9 w& {7 B+ t; k" e; U: [! y
if (trade-record-one-j-l-len > 3)
6 ^6 z) G P$ j; }[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
( {5 t& p. H( S2 C. `5 wlet i 3. i8 R/ F+ z% M4 u2 j2 ]
let sum-time 0
2 f4 j& u* g# @, F5 l# Lwhile[i < trade-record-one-len]- W( H' U. M _$ ^ l9 i6 q! Q
[: @/ _7 T- ?0 {7 i
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ W5 t( ~. O, e4 K! uset i- J, A9 D8 [/ L: l$ G0 V* a7 N
( i + 1)
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let credibility-i-j-l 0
3 k% _2 z( m4 l/ b& p;;i评价(j对jl的评价)( {( c O+ Y5 w+ z m* N9 s- _
let j 3
' A/ A* p# F. F u6 R7 {* Vlet k 4
9 H' r% X$ d. D4 _' t' [while[j < trade-record-one-len]
) o6 q* j/ w4 p- G" L[1 N1 N! N& P: V% e1 A" O, j9 j$ v
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' i6 m- t' S# A6 q0 ~2 s
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)
2 d$ O9 i% R6 Z6 ?4 {' qset j
3 |2 d+ O' H, E: \$ K0 q4 U( j + 1)$ E! ` F5 |' J( C9 ^) n
]
$ t, x6 {( W1 c$ B% f" H1 p7 W8 O' Mset [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 ))
0 L! R, X$ G w' A+ P+ t( a% q4 j: R+ m2 a: q* n* q
3 ^/ p7 M4 ~) I3 [let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ m5 [' o# r: ~5 ^9 [" r
;;及时更新i对l的评价质量的评价; M% a5 w3 ^$ H( b- F8 f6 s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 M" r% e' Q& y; `; c1 k
set l (l + 1)& T+ L6 V! e6 C9 n( a1 R( t8 d
]
e+ `" [% M G% `% u0 x4 Nend, k5 j1 L/ A! N" E
. X6 z" f6 ? T; _
to update-credibility-list
' B F: C/ e5 e$ B/ _" J/ Ylet i 03 |7 Z0 y9 v4 u% L8 B, m
while[i < people]0 X. o$ E" P {/ b/ |: B. D$ d6 S
[
$ x% T& p/ X% C1 ~+ ]let j 05 B' i, N- F6 m
let note 0) j% L8 E- i P0 c2 Z3 f
let k 0
2 d. m; |2 z+ G( ^;;计作出过评价的邻居节点的数目
) b) S }8 |' V9 @# Lwhile[j < people]+ m$ T- _* q* J& Y& y
[# z5 m8 G1 d* ]# X" D/ s
if (item j( [credibility] of turtle (i + 1)) != -1). I; Q/ ^! k6 t4 s
;;判断是否给本turtle的评价质量做出过评价的节点8 B ]2 X; J1 W, a4 ?
[set note (note + item j ([credibility]of turtle (i + 1)))" x1 l3 b, U* u7 P: D
;;*(exp (-(people - 2)))/(people - 2))]( K+ M1 D* |" ^ Z- U7 r
set k (k + 1); B. c9 `2 p6 {2 |% B8 u1 _! j
]- Z" L+ c, B" t0 `
set j (j + 1)4 c$ c" w% R T( {
]9 k+ F4 ^% K$ f3 ]1 e' ?, I0 u! ~
set note (note *(exp (- (1 / k)))/ k)5 K! X& r9 L. z, x
set credibility-list (replace-item i credibility-list note)
3 Z: u8 [5 t3 z4 a; R1 qset i (i + 1)! U5 \- X# P o. _: L" O, {
]
) N) e( f$ ~/ @/ r) v' g+ Tend6 M g) {9 m2 l- s6 B" \# t
$ e; s i& e0 j5 L7 I4 Z% Tto update-global-reputation-list9 i X, R% Z3 x8 x( L
let j 0
$ \: k) n6 E5 C, }9 {1 lwhile[j < people]
U: {5 n+ ?- m7 y* W; I x) |[9 x# @0 R, i+ g
let new 05 a3 x! ^% O, a. D8 u, p2 j
;;暂存新的一个全局声誉+ O. g4 \3 o$ y( j0 S; E
let i 0/ y" U) v; o; m" a
let sum-money 0
, A% E# }5 l+ G- b' x: z: L, blet credibility-money 0
! P: `8 h3 h/ \4 ^" \5 fwhile [i < people]
, y9 L/ i: [6 O! S8 w+ i[
) b/ a6 y8 s1 p. v; x, oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
7 K: D' L& Q ` Yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 p' L- j9 d" j/ uset i (i + 1)) U2 j% a( y4 L
]7 K4 @3 p* ~5 q9 H. P5 j
let k 0
7 J O2 A6 z$ c) S) n" |let new1 0 F' ]! b6 p! J) l: V$ N. m* u
while [k < people]
- L% {1 v( M4 N7 B6 D2 ][2 Z1 R$ m6 E( k8 z) M# Y) j5 l! D
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)
) o8 E& z& |3 ]3 Iset k (k + 1)8 m9 j% ^: d" M6 e7 d6 M& s! p
]$ W) @0 l) L6 C8 f6 ~6 F
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: E* J) B* S% {$ Aset global-reputation-list (replace-item j global-reputation-list new)
% \, l7 B) s" tset j (j + 1)
: G; n8 R- k. [ l1 g' E]2 j) D) | X% Y: B/ j
end2 Z% i- R- [8 r+ J) L( D
" n; I0 U9 _2 T) L( W
& @9 k0 U& R6 E5 t0 Z* Q4 j; l% k
" R+ }6 M2 o7 z& }* d1 Lto get-color
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set color blue& u- @7 K1 E" s% \, f
end
& B' H- q: q" b: K2 L! K4 E( Q4 _ D% a/ C( Y3 l% s- C
to poll-class1 {& v0 l# z; S q f9 ^- }9 P
end
9 {( l8 a; c s6 W& C
! S2 p; p- E8 s9 B$ G! R! v) Fto setup-plot10 T9 f; o j0 z+ L
' I8 L2 L* F: f5 i; Z3 ?set-current-plot "Trends-of-Local-reputation"
% J: S5 A, N6 ?5 r4 G' H! }
6 b5 R+ B6 t9 c% G0 y/ ]! `6 Z+ tset-plot-x-range 0 xmax3 m* U1 ]/ n9 n7 s* S! M
( S7 R" I. v' F$ E4 _set-plot-y-range 0.0 ymax2 a. O+ P5 o9 Y& C! L1 w1 A
end. q( t5 K& Y0 [' z2 C6 H$ z
* F7 W0 F6 z2 W; n
to setup-plot2
3 x* d- G2 y# p# {1 t' m1 ^ X# H& J8 ?5 [# {7 K4 ~1 b
set-current-plot "Trends-of-global-reputation"
' }9 s i# ]4 Q% s* D' g# Q( H% E- ^8 F) j) X# b( Y: H# H
set-plot-x-range 0 xmax" s V$ g7 v% c* q/ a: Y
! s2 {; L8 ^7 ^" ]- x6 ?3 i
set-plot-y-range 0.0 ymax
" z! n0 e8 i/ V* E# Q$ T3 Iend
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% S0 C7 g7 V( v% ?' c* G( Dto setup-plot3
0 x. U/ q! k/ A$ Q, j$ h8 z& W i4 }
; l( A7 l% p3 Z: ~ D ~1 i- nset-current-plot "Trends-of-credibility"' e# A9 d- C0 _/ o Y# Z* ~
# e3 m1 r$ Q0 B8 r+ }2 j
set-plot-x-range 0 xmax
) C; q# P$ [7 v; ?1 z. B1 l ~5 H# P+ h. R
set-plot-y-range 0.0 ymax$ W/ P5 f9 R$ v( V: k
end
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to do-plots; g; Y( ^5 R( F
set-current-plot "Trends-of-Local-reputation"1 C, l" i5 A I, C& e
set-current-plot-pen "Honest service"# o: a2 R7 \5 T2 a3 \
end [& A% y% O7 F6 }
( o m: d) {' W( t. m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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