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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% d* _1 j q8 T0 |: c: A Y+ p
globals[) z% V; r. \0 v& L2 P3 y, E6 [$ y
xmax
; Y, U2 | I+ E, O/ @ymax+ E: @) {8 P4 d+ [" T. i( o
global-reputation-list
) s# F) \: @3 O5 w# H
9 D' X+ R; T! \$ a' G* l;;每一个turtle的全局声誉都存在此LIST中0 L. ~+ M7 [1 P- t, K5 v3 k$ {
credibility-list
) d) O2 N% E! R6 l;;每一个turtle的评价可信度
" z- X; ]4 ^% x ?honest-service
) v. ?' R% b+ t" w7 Z' junhonest-service
Q& p* K! q% j5 m# n/ Poscillation
! X5 b! i9 V9 e y* C0 g# ]rand-dynamic# X: Q7 M# I5 Z7 F: D# z$ c
]8 i5 }! n) |$ Z
( C3 Z* B [1 T* I0 cturtles-own[
7 L: W% @' J0 O* K F1 {3 @$ Vtrade-record-all% w" z+ Y j+ D, B) X) e
;;a list of lists,由trade-record-one组成- n- N- H% r1 O, Y/ Y6 I
trade-record-one
/ m$ s7 k _4 ]& B3 k: P;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录$ l* N7 u3 n1 l% B1 @$ Q2 k& D
9 x0 M" W" m, g$ D' b7 L6 C;;[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]]
9 B! c- U& U- s' x2 N$ j7 ntrade-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]
0 }) [, D2 q, ~- f0 }2 q" n3 T- {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
- h E4 P2 j. v3 |: y- S# sneighbor-total, x: l5 t6 |3 q$ z
;;记录该turtle的邻居节点的数目
! S ^( {, T/ w" Ktrade-time
& R- U: p6 t( K1 w: s! R5 Y;;当前发生交易的turtle的交易时间' R8 H: r9 X- h3 ~
appraise-give
5 `5 Y5 y4 F. j! ~1 H3 j9 x3 ~;;当前发生交易时给出的评价
* D* x9 N5 G. K0 |/ T' eappraise-receive" R; o4 K0 z; z* k
;;当前发生交易时收到的评价
* L! @. ?% K: J! S M5 tappraise-time& y$ O3 R; r3 k) W7 s0 {
;;当前发生交易时的评价时间
D# @2 g: ?# ^5 Ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉2 u; U+ ~2 J2 K' u7 n6 F
trade-times-total
# y( F) l4 z/ U' i;;与当前turtle的交易总次数4 K/ ?$ A+ {* Y
trade-money-total
b, p' \9 F" }$ f;;与当前turtle的交易总金额
8 Q. S- d5 V5 J9 mlocal-reputation
& i4 e2 p( p6 ]4 ]) q- Xglobal-reputation
8 j5 Q7 W2 H" Q* H" Gcredibility8 H. c% r; a# n3 p. b( [ c
;;评价可信度,每次交易后都需要更新
' B/ K! s" J1 \. Gcredibility-all
2 [: m6 t* P' p' P- 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
( h2 v- i( J# K: I4 r2 }/ {8 d' H4 _! A$ M# A) ?
;;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/ |5 }& T* S: P6 X6 H
credibility-one
% C0 [5 L) N; `# o) |8 F;;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) h% j$ C4 A: Q0 u
global-proportion
$ Z: [) K$ d0 {customer
" Z4 v0 J5 K5 U/ Q7 o: k) C0 ocustomer-no
2 H5 w' b/ D+ @, {! O! ^trust-ok& ]6 y1 y4 }. {
trade-record-one-len;;trade-record-one的长度
; O& i- {) f3 g# S* y! `$ {]# ?$ C2 y# j- O% J# H6 C
2 c3 z/ T* n8 z& P; H
;;setup procedure
- [4 i) j/ D" l$ f2 A
& h. K; Q* a! E- N! e2 }to setup0 S% Z I3 r- h! _5 z/ I
' b0 b/ @; X) v8 Z7 Wca, e, K9 ?5 H6 @4 g% d
! V- S O' b) T& qinitialize-settings. {# O6 p" l& P
7 {9 t% G$ l3 z( ]3 ?# q1 }crt people [setup-turtles]: J( X; L! M- p9 R
. k7 J3 B$ O' {3 o4 N2 Xreset-timer$ v" j5 X1 i E4 l) S: \
! D7 V. d& ^0 q& e* w; Mpoll-class
0 J9 z7 T( @6 a& b
; m2 j4 d1 }4 D0 i( K8 f: _setup-plots# J0 O1 T: p, P( X
/ o: X! C D1 `do-plots( D, m1 \6 F! ~
end( Y1 ^2 q L+ J
8 K' b+ Y& X. d& d$ @# W8 O/ n9 Hto initialize-settings6 ]! O& U8 I+ H
3 y' O; ]" U" {. j( K0 Qset global-reputation-list []
3 v( S% E. T; ?0 j; v2 t: t. i: ] q8 J4 ~7 i
set credibility-list n-values people [0.5]
3 e0 _6 `+ H1 K% f1 m+ D" L d- y2 G
1 o' K2 `- k1 zset honest-service 00 [' \; ], _. i; @2 i5 E4 Q
6 h( t* n% Y \7 M. U: e6 mset unhonest-service 0* n9 s3 ^% k; k# T8 h
# Y9 |8 u. b% A$ e1 Z' \+ ^set oscillation 0
" H* S, {( q8 L; R
4 C( {2 F$ h6 A6 i- ?3 R) \9 lset rand-dynamic 02 R7 @5 X- L# J' S. ?# M$ E1 L1 h( t. H
end: m9 g- w9 y K$ M
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to setup-turtles ' C6 n( ?. }! G1 w {! p2 t
set shape "person"
* D2 ?2 i( a$ Y2 Rsetxy random-xcor random-ycor- d3 `! z( G4 r
set trade-record-one []
; W7 R2 x, U3 U: ~' g+ P
3 A1 ~0 x2 u4 j# Sset trade-record-all n-values people [(list (? + 1) 0 0)] 3 V; M1 P& V& `, @* q3 `+ D$ ^- c
Y1 W3 @5 z& w xset trade-record-current [] D9 L. h: h/ C# f. ^1 O1 d
set credibility-receive []
, w" `; W& @+ W* ^; ? r* H; xset local-reputation 0.5
: e1 w6 X+ }" b3 }4 h, T9 F1 U' Gset neighbor-total 0
% Z! v2 c6 a# D" q" x4 |) Y: {set trade-times-total 0% ^4 { l( T2 O; q3 j
set trade-money-total 05 ?9 H& S5 g' u1 |. V9 w
set customer nobody" T7 r/ L$ G7 u% b& D
set credibility-all n-values people [creat-credibility] L$ C0 v# Z4 g
set credibility n-values people [-1]0 x) Q0 k9 \+ B; E9 J8 w
get-color/ ^2 d% D5 V; A2 u5 U+ R
- Y; k' q) u# E+ n B# B6 N5 F* A4 z
end2 ]& M+ @, D% d
. @* x+ j, L9 N/ Ito-report creat-credibility1 F3 W) c: x& U) g) u% d
report n-values people [0.5]5 t* M" ~* p& t8 g. t5 _
end
3 @/ ?& }% F; c4 r* C2 @
& j, n4 Z! {6 z0 Oto setup-plots( {: Q1 {" C2 j/ ^6 L/ ^. `
3 a; d# d: }+ t ~
set xmax 309 v7 g$ s6 g! u' n8 u' {
) V3 P1 }! l9 W) t5 p/ ~set ymax 1.0
5 S1 [; T8 u; ~8 }( u$ r8 s
" [$ Z+ j2 q6 Y: mclear-all-plots
. ^4 }3 S) d6 j* O1 ~2 i# P- y$ Z$ p; ^
setup-plot1
0 y& p" u4 g# T7 k% I/ s
! P4 }6 l# V+ Y: h, S& gsetup-plot2
& G+ c# V" O& ?* r$ H: T2 ]$ j1 w+ ?5 m4 h# `4 b* f: A
setup-plot3
$ P% w9 n8 a& c- u" j# uend) N; T! Y' Z) z
4 _1 _2 q8 D. r;;run time procedures
; H* w4 e* P+ o3 V4 Z1 t6 o- ^6 H' ^. U7 p6 }
to go( }+ N' W% A1 K
2 P/ k2 \' Z {/ [2 @
ask turtles [do-business]
G+ w6 T2 X' i) k" jend z* H T6 {9 G
5 R7 F0 ?' |9 `to do-business . [& g% O2 Q8 f3 W6 y6 O; H
! V3 d! @3 Y1 p( N& b
* a: Y0 ^( z) W% R- E. L9 O3 |0 ^rt random 360
$ E/ S; n( F- L: ^% M- M- m7 p# I& d0 A) ]4 ? F7 ]- v
fd 1+ x( q" p. ]) V$ g/ O0 o; f
- D" ]& |! Y* nifelse(other turtles-here != nobody)[- }6 ?* ~$ m3 k Y! D
2 n: f3 q: |5 S3 Aset customer one-of other turtles-here: k0 f3 ~" \& D) c# i R
+ F- X) z- K4 E8 u# e;; set [customer] of customer myself0 H! f$ R. |; }$ g9 Z6 A
5 q- X4 a% u- }6 d/ G3 v- N% Pset [trade-record-one] of self item (([who] of customer) - 1)' V+ \ l' T% P9 R! Z
[trade-record-all]of self
0 k G5 G/ `# a; C' Z( B1 Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* @$ ~ v# F6 N( Z* s3 R
) o- Y; B8 e2 S+ m# H( C. i
set [trade-record-one] of customer item (([who] of self) - 1)
: g+ ^9 _+ F7 Z8 s1 t[trade-record-all]of customer) A( N7 |9 B5 ~6 v. k+ d
8 P4 Q; `" m" \8 ~
set [trade-record-one-len] of self length [trade-record-one] of self4 i, y& y" M* j
4 Q- @: ]+ N9 L' o! V( K& ^2 M
set trade-record-current( list (timer) (random money-upper-limit))$ z& @ w6 ^* F: n. L* O6 Z
7 |7 e% Y+ e; X- eask self [do-trust]
, i1 c2 |1 F+ T;;先求i对j的信任度
/ N) l/ X4 I/ {: w
- I0 f8 z' I8 Z+ h/ K! ?+ Zif ([trust-ok] of self)
* d$ l/ f7 b8 w, y* t3 q/ ?- T;;根据i对j的信任度来决定是否与j进行交易[
$ f' q# P9 ], o8 v; H9 I5 m9 task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ s2 S1 M1 V( J* l& t5 J
7 r, x! V+ K5 i. R( I7 V1 x
[9 u3 R$ A1 v% r. P9 b+ [4 F, b9 x
2 @+ o5 ?* B% ^3 B
do-trade
% ~$ H# {; h, W) X% D( I; \" @, n, Y( l+ f3 N
update-credibility-ijl: B; j5 Z0 B1 U% n; @
- B: Q) F) x1 G5 X8 l
update-credibility-list& b) c7 s5 {" ]! M/ s
" l5 [ U3 L3 R- V+ a* d% m7 x# H2 ~- y2 j' v( c
update-global-reputation-list
- U5 O$ M( {1 \& q1 f
- |, x* D% ?) i4 ^+ y" hpoll-class
2 g* B' j# G, a6 N. a P& u
' k4 r4 y8 y$ p2 l4 Z/ {get-color z5 O" q: _8 c6 l. { ^3 x
& W' D/ j6 }9 b$ C8 ^]]: S- e: \& \% t6 `5 x( K) Y# S
8 W2 _- {9 M6 b' ~( J, ]5 u;;如果所得的信任度满足条件,则进行交易
2 D: a Z/ _, R8 t- Q
6 `: R5 d8 y0 x[, f, k/ E" ~* w9 D+ y
/ m# m" i* }5 Z# E4 Zrt random 360
0 l( z6 I; Q# k- q7 _" Y4 i3 \8 c* k2 W4 t4 P2 k5 M
fd 1* O) o0 F. i( r) G
: _0 Z Z: M/ t9 | R
]" j& D; P7 v4 U3 D3 ^
8 r2 X$ R2 c# o
end+ p: E, H Q' l: J6 u/ X
; |; m. j1 D; Sto do-trust $ g8 M4 X0 c, b) n+ k5 ~2 |$ h$ j) N
set trust-ok False/ B. K- S1 ^+ D O9 x' p$ F/ R4 [
+ P' A, W# N; M4 A
0 ?* B+ E3 {5 a% xlet max-trade-times 0
0 j9 j& R' z4 Q" b& ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ ?' F. _) ?2 w( {6 Clet max-trade-money 04 X$ `& I. B1 ~
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, S( \9 ^' M3 Mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 x0 }/ |$ L4 L8 m8 K& o9 [! S$ z7 X5 `7 d1 `8 M* ^
8 d! p% M& s8 p& e
get-global-proportion O( B! c( _/ `: E) z
let trust-value
( J% A4 E' V( ^) xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
/ N' S1 m$ L% X2 G- @/ c) Mif(trust-value > trade-trust-value)3 r7 }) f+ @7 s5 V' j+ w( ^
[set trust-ok true]& ^9 e9 ~9 E* X5 M1 e0 K7 [
end
" T+ C p/ G$ g! ^
. Q3 \ n( U/ e' s! p. qto get-global-proportion
! A7 P3 f7 X5 a" ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 j/ ] V4 a' k* N) H M
[set global-proportion 0], O" X* n+ w7 `. c
[let i 0
+ N! G" K! w7 llet sum-money 0
U1 |, g- P* W0 F+ W5 j0 _% ?6 }while[ i < people]
; V' Z3 H. c4 I. k[9 M$ g. m) e9 t) S, L1 v
if( length (item i
5 i6 q, e5 G( N4 }4 \[trade-record-all] of customer) > 3 )
. i* N4 r: I# z5 S4 b[
8 h$ H) r3 S# J- Eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 {) Q2 |( E: N9 D. ^; `2 R5 N]
' b0 A6 g) N5 Z: f! ^ P1 s]$ Q, x. ~9 b8 W) k G7 B" [ k
let j 0
e" J$ c7 R: Q% b+ Z8 i9 i4 dlet note 01 R A1 ~6 l1 C. i7 p3 |
while[ j < people]
" E7 R, }! i( S* K# s[
5 R% p2 q- M p1 O+ nif( length (item i
/ J# i8 N- p$ @3 B. `[trade-record-all] of customer) > 3 )
5 n& I1 J9 K, X3 t5 M[
: ]( K2 m6 u# m7 Xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# e7 ^2 m/ U0 X( o8 n3 M
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* y* M7 N+ Z1 x3 T1 D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 ]% B7 b) z2 D: q6 A6 U2 L]4 ~( _7 D* \- X2 C9 M$ l
]
4 e8 U* l7 f& P5 n0 dset global-proportion note# C+ [0 J3 R- b) e: V# z9 T
]
- L: x, {. u+ t/ n& ~end
' l. ]. l, Y9 A6 [# s
6 o4 l* _7 G4 K4 H5 J9 dto do-trade
: P4 _- m: M' F' K' a# [2 Y6 `9 h;;这个过程实际上是给双方作出评价的过程
2 g& d$ T7 Z# y0 B- Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# x: ]7 U( }9 ]& c1 u/ eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% t5 r& ^- |9 Q* Wset trade-record-current lput(timer) trade-record-current& X" c0 m" Y1 A7 c5 y" _# q
;;评价时间0 a, t8 ]5 L% a$ B
ask myself [
1 V; f( B+ L9 U9 \2 c' Zupdate-local-reputation
: P7 {7 H, P: E* c3 F Hset trade-record-current lput([local-reputation] of myself) trade-record-current
- _' P7 X5 r- {1 g+ ?: D9 z]6 ]5 T* c; k+ E! ?
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 O; ?" @: Z5 @: A
;;将此次交易的记录加入到trade-record-one中
* x8 D4 y& S0 ~3 c) M) q# b! Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( r, z# G& F! m2 ]* b
let note (item 2 trade-record-current )
0 Y' X o' O% ?* Y1 ^set trade-record-current) Q( T& D( @2 s* |% i, c* P8 f
(replace-item 2 trade-record-current (item 3 trade-record-current))
" Q8 x) g c# [5 ^% _set trade-record-current' t5 n1 Y N3 p( a/ \2 C5 ?- O
(replace-item 3 trade-record-current note)- A- m% ^ k/ c2 ~/ ~7 I
4 u5 b4 u7 }, |& `4 _
% K2 C! c; }8 ]4 F; `0 M# Vask customer [
1 e& f9 V$ |# k! W$ c" W! Mupdate-local-reputation
4 J" }) K* ?9 P8 P/ {set trade-record-current
& I9 w! H& ^7 d' i! Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 g/ U* n. X U2 D" _/ }1 g
]
; t7 q1 M# X% y$ Q1 C# \" w+ T& c, X, A& l/ I
' ^( {* S' g0 m A
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 P7 M; ~5 y9 ?! A8 Z/ r& e. A6 B6 H; e F
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& F- O2 c; w6 z;;将此次交易的记录加入到customer的trade-record-all中
4 Z) J6 E0 E# k; cend
6 u O4 G( z1 _3 T3 _2 V8 {, o+ d) ?$ s
to update-local-reputation
& C! x; ]& p l' w& Z `) D+ `# iset [trade-record-one-len] of myself length [trade-record-one] of myself% p4 J, | q/ M7 e8 e/ ^
8 ], {& `. P2 `4 _! R
4 w' s6 @/ T% H: S;;if [trade-record-one-len] of myself > 3
6 b. |3 f% J! Iupdate-neighbor-total
* l" E# T* M; @1 N2 d7 k, F$ K6 D( M;;更新邻居节点的数目,在此进行( H% m. W* x* K! r
let i 3' O1 G C9 S* Y
let sum-time 0
9 k$ c5 T; M! w- X3 F1 r9 Owhile[i < [trade-record-one-len] of myself]1 R4 b& H3 |6 A6 l% C% f
[. A$ Z" a$ \6 I9 E, V; ~
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 W( f' L/ @* ^- c8 b! d* j
set i4 m: o1 x6 R! ], Q
( i + 1)
+ e2 ~; j1 z$ W, c! V) Q]
4 J7 B; O5 c% [1 h, Mlet j 3% I, I+ H+ j# {- g" p
let sum-money 0
5 b! R8 y9 h9 H3 C0 Iwhile[j < [trade-record-one-len] of myself]
0 a" _( J2 Y6 w& a: U! A4 B+ z[
. c, `6 L2 ?2 M$ h3 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)
. K8 S5 k4 H# r" |& }set j7 o+ J5 v4 U9 j2 ^6 D
( j + 1), v1 R5 G% b# @# c0 s
]# J( T W0 U% q- ^
let k 3
+ g/ h8 o( { blet power 0, d ]; Q! F/ ?
let local 0- S: w8 X3 @* X8 y; z1 H+ M
while [k <[trade-record-one-len] of myself]! ~ _8 e. O* b# H3 Q0 v) X
[
* u4 `1 U& B. m9 p0 Qset 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) ; v- \6 `& ?0 T, w# G
set k (k + 1)" n/ n, l5 M1 K3 D
]5 f2 H6 I p0 J( Y* n0 L( ^
set [local-reputation] of myself (local)5 S7 I& G6 h8 c- J5 f
end0 O, f( o5 G( E" m2 i
& v1 c, w" i' Z/ g) H3 i, b
to update-neighbor-total! P' h+ [6 I/ C; V) a
& o) J& L( \2 L+ y1 |6 i3 sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( g, {, b* p. W; x, u% x# d$ w/ A8 Z8 U3 Z
% p& {2 h a7 F% M o( _end" g6 a8 W9 N. e
! I' d2 @! M1 |: f. w/ H* b8 k2 Rto update-credibility-ijl 0 l- b& I4 T) P
- s" a L; b4 n! r8 J
;;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。 f4 V& E0 ~5 s* ]9 s
let l 0
) T! _% z( X* d) E, Kwhile[ l < people ]
1 }4 I! c4 G# _' X3 W B;;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$ c( S4 [- y/ Y; d% K) Q( A/ W
[, i7 O3 |+ O1 k! c, i( d0 W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 o" L' @3 R; o3 X4 f5 Z+ p+ yif (trade-record-one-j-l-len > 3)& C8 F" S# Z" `7 l: V
[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 A% v" P- C F% x4 b) \let i 3% p K% {! q9 a) J1 n' ?
let sum-time 0
" j/ E. r. p4 v! q6 O1 m9 Rwhile[i < trade-record-one-len]
( T$ I' C$ @8 ~( w% [3 q7 g[3 N" B5 B2 p5 Z
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% [% d$ P1 \. m5 N9 j0 M6 d9 z. ~set i
! ?5 ^4 c9 P. ]( i + 1), k+ j9 d. P5 y& _
]
0 ~) q6 Q' U! S+ slet credibility-i-j-l 0
1 B8 G1 e3 R" Q$ s* h$ Q3 z;;i评价(j对jl的评价)1 T% _9 C T Q# A
let j 3
$ o: J$ F: M- d# B$ p# k$ tlet k 4
7 y0 q% V6 n$ B8 F' r. y1 |3 h5 ]while[j < trade-record-one-len]
. Q+ d/ u6 a2 l0 M5 y3 s, |[
7 Q+ V0 o: @* V4 D& C9 d' awhile [((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
7 S" O/ Y6 H6 ^; M! }1 L3 Y( {. b2 Jset 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; }+ z5 j0 U; ^$ {" \2 ?' Oset j
8 s# J' }5 W/ e7 G1 C, N( j + 1)' k P, a/ }1 f' k0 i6 G1 ~% v, y5 w
]
! d# D( _- M# N+ b$ w- s" sset [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 ))
: ?* B) V7 x; b/ }4 n7 O9 A7 e& J. d3 T8 ]' ~
" V4 Y/ e+ p) Clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 _& S- D' d8 Z$ A
;;及时更新i对l的评价质量的评价. u* }- K! F+ v& }0 F, y- l' Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 F/ f. c( Y+ V) _2 {
set l (l + 1)
" B N( E5 q3 X/ H2 }]
$ J0 P" O8 T3 R/ \6 j5 n( Pend
$ |% F! o0 q4 C4 k' L* m
: Y- n/ r$ w5 z% D7 [% Jto update-credibility-list5 l4 l( u; ~2 H6 A
let i 0
1 q: E# s1 w* e; `3 @while[i < people]
+ @- [2 P' M" n' w$ M[7 I- m2 G' \7 s' X1 E5 D1 |8 Z; Y5 m( ~
let j 01 n, e+ W: y& @, ?
let note 0
6 g3 l3 F0 b$ s3 K* u6 l: nlet k 08 m. W0 h8 v4 `4 X3 G1 J; ~
;;计作出过评价的邻居节点的数目
7 f% c; P* u8 U8 W# ^6 V: \, ^8 Nwhile[j < people]" {& e& N9 J H1 ~" T4 z9 v0 a7 z
[( G$ ]4 e" H* V
if (item j( [credibility] of turtle (i + 1)) != -1)+ O! s. w% |7 }% B! a
;;判断是否给本turtle的评价质量做出过评价的节点. }3 Z! K: H6 c$ r1 l3 T/ ^
[set note (note + item j ([credibility]of turtle (i + 1)))6 q. q6 `# j. }" n: l9 [4 J8 K5 }
;;*(exp (-(people - 2)))/(people - 2))]3 j5 `* M; e3 l1 e3 y' n, ^+ t
set k (k + 1)
& R% w: _+ s! A9 _]
3 l2 e* y. J4 Xset j (j + 1)
+ N" ~7 S' A6 I4 Y$ @- b. D]
5 L, a4 H" t* S2 Z7 |! K \% oset note (note *(exp (- (1 / k)))/ k)
1 _# j& t: Q( P) P, Q" O# Xset credibility-list (replace-item i credibility-list note)0 M! Z" P% q% T
set i (i + 1)$ Y2 e# V& V; G4 G
]
0 ~7 P8 k+ ?- G1 uend5 J- w3 r5 f" S3 C* n/ t
8 } P4 _9 @" M
to update-global-reputation-list3 V: [% Y! B$ I
let j 0
7 c9 G5 Y3 o/ x) T+ }1 [! cwhile[j < people]
7 `3 F( ]9 ?- W5 B$ j; v[
8 }7 G, a4 `: O6 |let new 0" P- u/ g3 s1 \/ z: B# D
;;暂存新的一个全局声誉: Z) h* k# E' [" L6 N6 O g. C
let i 0
1 x' \( V# E% b0 O* i2 U( b! v* Elet sum-money 0
' S! b- t7 q, Klet credibility-money 0 c m- B! i4 L! h+ O; q$ o: A; g. [
while [i < people]
5 @: r7 n \# n' Y1 i[, D4 t4 K6 }5 S) D9 T0 K
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), C6 w' }9 V6 d, ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& I. b0 y* p+ R: m' C3 }- zset i (i + 1)$ @& J: |8 b% w8 y* U
]: S; [. \0 m" V
let k 03 V' n( M1 n8 M9 C
let new1 0- q1 s- W1 e) H. u! h
while [k < people]
! S1 j8 f2 |0 C[
" ~3 `& _2 V) d8 fset 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)& K g/ Y9 p: `5 E z. \; k
set k (k + 1)% {' R- ~( x% J# g6 {7 K
]8 n. Z# \* `7 l8 U
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % w3 g5 t* Q& x" c; A9 K
set global-reputation-list (replace-item j global-reputation-list new)6 |& l" j A1 l8 {& n
set j (j + 1)! C4 i* _0 x- k6 G' S' @0 l- B
]
0 \5 y' B7 Y |, ^- O3 u" oend1 W2 Z+ q7 n2 G+ C/ f U, q* K9 G7 l
( t1 k7 W" T' `$ j6 M! S
* B. }; X/ M ?
. J& Z# v! D" F5 pto get-color3 I! X1 w( s) H
- P8 h2 q9 S* }
set color blue
* O; d) J5 h' v: H. y! O7 Z7 D; wend- }/ T! X# m& s6 ]
# X( G6 Y$ _1 w2 C/ o( g0 B& Q j
to poll-class
( m& S' f# v4 |5 o- Zend
- o! s6 S, S# Z4 r" @7 ^
; J, ~& A' j D5 nto setup-plot11 |8 I( B2 j- _9 Y! i: H
' ?+ V$ N; y5 V+ Yset-current-plot "Trends-of-Local-reputation"
B9 M5 }! Q8 i4 t+ y/ F
. b* J3 z, H9 |) A: C3 Mset-plot-x-range 0 xmax' c/ b5 n1 Z+ D3 g
7 d- Y! e- }. x7 j: _0 a
set-plot-y-range 0.0 ymax
; d, p1 u) B. R9 Z; cend& X6 j* S) D5 C/ M7 i' U- X
4 o+ l; O1 ] f0 a* u
to setup-plot2
# D* ?9 R2 q. Y# Z& V" i% z! ]
1 G& L' J* T( P* ?' ]set-current-plot "Trends-of-global-reputation"
* z. M3 w) a& d9 p5 m; ]# [% f1 N" E5 f( Z8 Y3 S0 v
set-plot-x-range 0 xmax& H9 u% v7 P, [; h( `! d
" v4 i! ^8 {' Aset-plot-y-range 0.0 ymax
6 w, [! B, C! a, X8 \5 Aend7 N+ j: A j' T m/ T3 q
. t* a& d- d- h$ u3 k
to setup-plot3+ v. `+ B2 D& ?3 Q; b3 b2 v
: j; [+ a- E7 p( ~3 Mset-current-plot "Trends-of-credibility"
6 ^! k9 m4 V( S: F) F
8 w. ]: |; n; w9 B) kset-plot-x-range 0 xmax, [4 B, R7 U7 ?$ X3 W; T
& I d0 s$ p) e5 m6 p
set-plot-y-range 0.0 ymax/ i' T; W; h% a' U; w2 S6 H
end
( T6 S& x% }& w' t8 T: w' O: Q* }& W. w- S: ?0 u: v
to do-plots
; `; }+ e0 d9 yset-current-plot "Trends-of-Local-reputation"
8 _5 F5 h4 D8 Y h7 y Xset-current-plot-pen "Honest service". k6 ]6 P2 |6 D! b ]& x$ ~) H
end
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Q1 j1 J! J: h) A6 U[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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