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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5 W' L7 T ~9 T8 U& d8 Q
globals[6 R9 t. B/ |: s3 s# J: w
xmax9 B$ r% v( a8 L- z" {2 V+ S
ymax
: |. u- T5 f, nglobal-reputation-list
8 Z: |0 X" e/ U; F5 m( l4 s5 |! X$ a6 Z" W' [. l1 ]6 z6 q" X7 u
;;每一个turtle的全局声誉都存在此LIST中
$ h( b* x$ n* Q; N7 t# D( Z" j: Zcredibility-list
7 X9 F4 n% E6 F9 Q7 p;;每一个turtle的评价可信度& v) P+ K, _; B# D
honest-service$ ^" \) \& C& @& T z
unhonest-service; a$ M( l2 n" H7 Z$ |
oscillation& C' p8 ^; f1 R* H& H
rand-dynamic
' U! n7 R; }6 t: P3 }7 Z$ s]& o- g; \2 | b$ V! v( ]; O
- ~- E- }$ n6 u$ C1 M
turtles-own[. S5 a$ t3 K9 s& ?5 K' I
trade-record-all5 J" S- \- W5 v2 C
;;a list of lists,由trade-record-one组成( c+ M. \9 f( i* y4 L. N
trade-record-one
- O7 B6 Z1 j$ q6 p, a$ e8 ~;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ w! u- |, g, e" g/ L! R4 l0 V5 X0 m6 b
2 j6 x, I. s: a/ {0 |5 h: K6 P
;;[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]]+ q+ k" i, g5 f
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]
! `9 U* x0 f1 }$ Tcredibility-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
9 E" @) Z( s5 z5 q% E* n# pneighbor-total
z! y% M) ^% o, B" Z* B5 {$ Q) s ^;;记录该turtle的邻居节点的数目; P }! b T: T" a( j
trade-time& k7 _ w. j3 e* b; E; x
;;当前发生交易的turtle的交易时间
D8 J7 C# C$ {& S( ^' bappraise-give- ]7 n# t1 g/ Z/ h# g7 [" Z
;;当前发生交易时给出的评价
" a/ V& C7 _9 Q1 B$ U: {appraise-receive2 a" O! Q9 K5 ?3 V* v$ x
;;当前发生交易时收到的评价
% G' C3 N, e4 F( I) N0 _appraise-time1 a: m0 _! J: g' Y* ~4 u
;;当前发生交易时的评价时间& h f7 _2 ]# q: R: v% j. }! b/ f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 y7 h8 \( O% Q' N' z! n8 }. xtrade-times-total( y! Y+ b! @8 A- n+ m; c" ?
;;与当前turtle的交易总次数
$ q6 ]4 ]4 b# C9 Otrade-money-total% w& }; d3 o3 D6 s
;;与当前turtle的交易总金额
2 k8 K1 `, W/ x: I: k6 A qlocal-reputation
( k" ^& o% @2 ?* b0 v3 }& xglobal-reputation2 ] }+ h+ I" h' h( r
credibility
) n5 t3 J" Y p1 E& ];;评价可信度,每次交易后都需要更新
* w/ G. `" o0 T. _) dcredibility-all* n2 c, U* O% o5 y1 C+ w* i
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据9 P. `1 U. H0 |0 T
7 T3 h( j3 h( r1 n9 z;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.50 h6 E& ?& v+ e" T5 _
credibility-one
! w) J1 Z4 K- p. `1 F; I9 B;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项$ \: S+ }1 W* }& [
global-proportion
t# c1 Y3 G1 ~customer
7 f$ b4 g! Y9 T8 ?4 B0 bcustomer-no! M" f/ C) o; Z7 s* A S$ H
trust-ok0 p2 K8 u% p `
trade-record-one-len;;trade-record-one的长度/ O+ @/ k" w( c: b! r$ m9 k
]
* z+ u( [- `- S! g6 S$ {) T. F+ U8 D% h/ T; p
;;setup procedure. J3 I- j6 @/ B u# H/ s1 @
% b- u& [# A$ C7 u8 q* \2 y/ tto setup
- j4 E: x. f( S3 f( J; a% `# Q* R% w' \) \
ca8 ]2 L4 H2 R2 y$ `/ h- C
% \- r* I0 t) X Winitialize-settings
! [3 K3 j0 b6 k: u4 A2 ~$ H# X3 M+ u- @7 {9 b
crt people [setup-turtles]0 ~' g6 c! F& Y2 a* l
# u; k8 ~ v+ d2 T& ?1 w2 `: _* {
reset-timer
+ k/ b2 Z9 v9 y$ x3 d9 Y" e$ A h9 `2 x7 R( S& J R
poll-class3 o' E( ~, o: R
1 X, x7 C6 c# E) Xsetup-plots
; ^; H* k/ t5 h6 Q+ [
, z7 T/ r+ I& m( O& J a9 ido-plots/ Z3 Z5 C9 H7 | R
end) q T. B8 f5 u+ z2 |) p
, C$ A/ `* v4 Q1 Fto initialize-settings0 b4 m' r' W% w3 K
# o( \, L( u% r- E+ g$ _set global-reputation-list []
% q+ a3 D4 o+ F) i# P
2 J% v& b+ \2 w& w8 O5 e" Tset credibility-list n-values people [0.5]4 A8 U9 `/ A' e1 l
+ G+ P ?. Y4 c( I- Aset honest-service 0
$ d1 v! u/ n5 H0 h! W6 Z3 B' @3 u: L% ?3 n4 T
set unhonest-service 0
: X5 T. O% s/ y9 `7 o, l+ ^' n5 A q; ]" I
set oscillation 0
4 P m9 t* s* F2 N" k& Z
6 t* c5 s+ }2 |set rand-dynamic 08 C+ [6 M/ o2 u; X0 P$ g) Z' a
end
( y8 H4 ~, m: J2 h5 x/ R4 e1 D$ m2 c c
to setup-turtles
) Q$ Z+ }4 j/ j$ i# |set shape "person"
* d; X2 L- ~ B* m4 H' L5 V9 J- esetxy random-xcor random-ycor" p* n; E: W6 f* p, {6 Z' L' w/ X
set trade-record-one []
7 M4 v: `2 J+ Q
- U' r9 n: Z0 [8 I% [! @set trade-record-all n-values people [(list (? + 1) 0 0)] ) H3 \; i" Y& x8 x- e
8 u- D& H, ?8 D0 z( {+ A
set trade-record-current []
7 C0 _+ r2 O" K- j2 Kset credibility-receive []; W! Y) e' t' F0 N
set local-reputation 0.5
, \' ~& P L0 ^% Bset neighbor-total 0
! a6 o0 F9 T( P. `# ]set trade-times-total 0
* ^4 z& a( f5 r: m, Pset trade-money-total 0/ _( _3 f& j; `% c. [. a! \
set customer nobody8 \6 ~; j" ^. q I( f& r
set credibility-all n-values people [creat-credibility]
2 g0 a9 n" {" k2 @set credibility n-values people [-1]- t% o8 ?( V' ]1 |
get-color9 P+ m( w7 o8 W, y
& U. L$ {) o) o* q1 i+ D+ iend
2 u" a2 S4 ~( q
- @# w2 k$ W% l4 z! Z2 Mto-report creat-credibility
; J1 K: A* Y& Y( ^- X: Greport n-values people [0.5]
: o8 ]2 B) U$ jend
: _2 L$ e; I4 y n* F' O
" O6 a0 @: x0 k7 a0 dto setup-plots
! T/ x- w: w8 S' G% E/ W/ L1 U# U8 \& |- A& L2 K
set xmax 30
. f: q* D: |" b8 q8 L
X( A. d0 M' d9 v2 ^- O! fset ymax 1.0' h, a# z6 M3 d& w" ^5 X" [
3 R2 o( @+ `) kclear-all-plots% [8 d8 C0 X8 f* J# E4 P; B
2 O+ R [ [0 M
setup-plot1( V: K3 }; j4 j! k* [) o
8 Q2 ]4 {: M2 P' S) ^setup-plot2" i' Q5 v5 x" e5 v6 O! g
! z, z0 d R" |! `" o9 ~" j9 e
setup-plot39 n6 M' |# z: C
end
* N$ w7 a% o6 q8 R- z/ A
6 J: S4 T! Z. Z8 L1 b' u;;run time procedures6 X& x0 l( u( E3 G
0 ^1 e3 a; h- ^3 z- Tto go+ [* M0 A9 `: |4 F
- h! W7 {( h$ m% n# ^4 d3 r
ask turtles [do-business]8 P& }: Y/ |4 G& M3 S7 q& O2 {1 @+ W% ^
end4 j) v$ }/ I* K0 H) e# w* f7 G
4 R* C+ Q5 @& |2 `2 d6 l
to do-business
6 L {. C5 {# y" @8 k
! S' w" D9 _ C, e$ h
- N i) t4 [+ \' ~" d" trt random 360$ A* K, I; h" M1 E
! u0 ]. T& w1 L$ o& }
fd 1
' H; \& Q/ Q4 u% F; O
' E$ \8 T% N5 |- tifelse(other turtles-here != nobody)[
5 y* l6 `. B' P5 Z
) B1 N6 ?! |; e' Y7 ?! Tset customer one-of other turtles-here- I- k8 x/ Y1 H6 K) K
8 E$ W& E; n% f) r! u6 f: Q' K3 `
;; set [customer] of customer myself
& z$ X2 S" W- _: L) c
8 _3 f: l( }) U/ oset [trade-record-one] of self item (([who] of customer) - 1)% w6 J" L5 U8 {' J
[trade-record-all]of self
1 z5 |) F( D% p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 F8 p# n9 n9 B9 h, n. [( \
% f1 c1 k; a0 ^4 a' t0 B# k6 bset [trade-record-one] of customer item (([who] of self) - 1)- R) h& g3 v' r# S- K z3 j
[trade-record-all]of customer/ F# |( l8 P! s" f, f- l( F
* u$ a( u& x! q# pset [trade-record-one-len] of self length [trade-record-one] of self7 F1 |* p, z0 }7 l2 Y- L& X# ` ]
' Q$ i" a( Z, R: B
set trade-record-current( list (timer) (random money-upper-limit))
* h' Y# {& g( N; @9 ^( e9 d$ @& S; b, a& | z1 \8 s
ask self [do-trust]& F+ p r2 q$ D9 F) j( X* \
;;先求i对j的信任度3 Y D8 P/ N r- Z# C
) U) S# j, t3 @5 z! b
if ([trust-ok] of self)
7 t1 M; v6 s; }* [# i6 s;;根据i对j的信任度来决定是否与j进行交易[& A6 R* u, E6 N( K* O% `
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ [# f- V9 C$ Q& H* K
% Y1 g1 f# a; V* T( g0 o[) ]' D4 f2 G) S% E
; r9 e, |" Y8 @, f8 c) X
do-trade
2 W7 [0 z$ P1 k; k% b! Y
9 _0 L3 l1 o' f+ V( w: e M2 fupdate-credibility-ijl
& Y/ D0 D" w: ]$ f
( d/ S z; |' _1 s2 b2 O! g) c$ vupdate-credibility-list
/ a' e7 [0 o# c# [4 c
% n# C k3 ?- Z. p! r% h6 X
, Y+ i- Q7 u1 ]' f1 `8 h! Rupdate-global-reputation-list
5 F' i- [8 R/ B! d0 N! J8 z, \6 \: z2 F+ O0 h
poll-class
( o1 M J; m* M; r5 B% ?% E8 U! }/ E o
get-color
0 R: u! T/ `0 D8 s" w E$ W+ y$ p
]]
- j5 u% R' T" N" G% M4 Y* }: ^8 B7 V
;;如果所得的信任度满足条件,则进行交易4 L0 K9 ~+ e! |2 `2 R- d" k& `/ h' O
5 b2 V" [6 {2 {
[
3 N! Z; ~' s. r3 B: R% `( n% x/ P N0 Y& P+ w
rt random 360
7 R& m$ ]" U8 R- ]8 ?& N: E$ x: h0 E- `: l" D
fd 1# Z6 ^2 D: g0 A; E2 ?
0 d1 b- a* {- B& k L( p; D
]' s5 i; R- ]7 e0 C0 N; i
m& b* l" E$ y. @end
& K, Z7 d" k3 k) T& [! u6 n+ @* p. b6 O$ Q
to do-trust
- d z, J0 n: M+ N D2 A! A8 kset trust-ok False
1 O' ]: X& P4 J9 x8 N! P" U
- q2 N! u1 h0 H( G+ `
. N# h$ }4 N0 e/ f Qlet max-trade-times 0
' J+ T* O1 ]- h3 h% Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. Q6 Z% j. U2 n) M" {6 l- mlet max-trade-money 0
: f$ j/ g9 M, j6 I* s6 u3 h. |% b2 y+ Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 E9 ~0 q' l/ [6 @5 r- e" alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& `; t. @* v$ O# ?2 s1 x& I. Z) B% U+ Z# v' ?3 D o
8 d! [* T6 y4 U% {6 h, J- Lget-global-proportion% f) [( G# j* x) w; S2 Q3 w
let trust-value0 I d) V4 Q6 m' l' Z
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)
8 R' y( s. ?& U/ D; A" gif(trust-value > trade-trust-value)
/ f5 ~! O }" n; I8 z% S& r[set trust-ok true]3 Q8 E5 k) |3 R) z4 y7 S; K v! f* L
end) S# y8 a. y" ~$ m
: s( g. z" P. N- _4 `6 G9 w* {
to get-global-proportion
8 y w# S. Q9 A8 u. k# qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# ?: ~6 |! J+ v3 y[set global-proportion 0]6 p" D. r( _. W. ^' V: K
[let i 0& o" ]3 P0 f/ A1 ~0 e2 n# W8 A
let sum-money 0
5 x" L- @; r5 g. H, hwhile[ i < people]
% t8 M. k# |& m" M! x2 r/ n- q$ x6 w[
5 m2 T. W9 b, l0 N3 Pif( length (item i/ l4 p( n! K. d) m8 y( s
[trade-record-all] of customer) > 3 )5 V0 f ?7 U) p. E8 B
[
8 q' b& M! O2 H( j4 Zset sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ l1 n- a5 X$ {4 V8 v2 T
]* P8 @# G- x; i6 l
]/ c1 c2 S# k! F3 [8 I
let j 0' m; @8 @# e B) k( O
let note 0
5 D+ p& B0 P6 `& [! q# ^7 B$ Qwhile[ j < people]+ [7 p+ o- J; C8 C. I4 e( b% ?
[
' t+ V, R6 }: }$ H4 i5 t* ^if( length (item i
" ~# V- p8 {0 m. ]6 g, n5 ?[trade-record-all] of customer) > 3 )
. s! k9 R( p) j2 I6 R[
6 ~4 j. ~/ J! E* V @9 n# Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# r1 j @, g( |[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* n1 m7 Z- A( `; M1 C. K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& v0 t! T; f. s9 v]0 l, ` F, ~/ y. B$ L
]! M( B+ j) l7 L) e; l# C" ?) g2 B
set global-proportion note$ ]9 y% E7 `/ y# ~' Z. u' _
], J" }& |2 @! c4 |
end2 d6 u5 {8 n" H2 ~9 c
+ U. E4 X) t' B$ ~+ Y( D: W: S
to do-trade1 t7 Z0 ?* j8 ~ r P# ]* d
;;这个过程实际上是给双方作出评价的过程
8 F @# ~! D, E" Y2 C) s$ n& fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, m; Q- k1 Q( ~- F$ C% B! j8 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价6 ^; H D2 T$ f3 Q: W
set trade-record-current lput(timer) trade-record-current/ W: k! A" U* q& a! ]% z
;;评价时间
! H7 Q% t6 L' Z5 `) zask myself [
4 @$ G- g/ l) j& rupdate-local-reputation
! }8 [- r# Y% i: ^% \. Gset trade-record-current lput([local-reputation] of myself) trade-record-current
2 P7 |2 U9 K. W7 T2 [3 p]
t% c7 ~( n- _: D2 G: k; xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ y" g* O+ a+ n6 k) N3 @2 c;;将此次交易的记录加入到trade-record-one中
5 T$ ~# `- ~3 U" N' z" e0 O6 }set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 X2 U2 l0 D8 \3 O* c f
let note (item 2 trade-record-current )
" A' {6 m5 f9 i, M7 M% x* jset trade-record-current
% U1 Z4 P( t1 ]( m(replace-item 2 trade-record-current (item 3 trade-record-current)): I; p5 d, k, s7 w$ h q$ U
set trade-record-current1 Y. d& p+ t5 j1 j& E
(replace-item 3 trade-record-current note)
7 M' [9 B9 [4 V* y* \$ k: j6 _0 ^4 t6 J! `, v. j
( [. `6 T5 q: m* c, ^
ask customer [- W: N% O5 H ^
update-local-reputation' N" d q A- R: n: v" j
set trade-record-current0 i9 q' E5 E1 L. k. K2 l8 M) [6 H; a* @
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 N7 T8 N2 ]7 M0 `" ?
]$ }- A, O) Y. w, z* Z, c
1 i' ?% ?1 n8 o* N4 j1 n
3 O: I- C; i2 ^6 Qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* @$ {3 Z. X* @! T, l I' F/ ]( s/ n( l, L( x
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ {$ m/ Q2 A+ w7 w5 ^" r# ]
;;将此次交易的记录加入到customer的trade-record-all中& N: S# m: t: m9 t3 Q; V! _
end4 k8 e0 J" L: ~7 I
. s) X# K M4 U
to update-local-reputation
& T$ s, _$ X. @4 @" Tset [trade-record-one-len] of myself length [trade-record-one] of myself
: m3 v8 P I& B1 Z, L1 K( K, l7 O
L8 x1 r5 R. `/ ?
8 Y: l1 I3 {1 k;;if [trade-record-one-len] of myself > 3 ) Z: q9 Y& \/ M6 _- D* a( }
update-neighbor-total' }$ U& I p: v+ U: S1 b' ]
;;更新邻居节点的数目,在此进行$ M! f- ^5 o% l, \
let i 3
4 ~; P" g; x% ^! B2 N9 @: Blet sum-time 0$ R6 | Q" E+ W# B0 S
while[i < [trade-record-one-len] of myself]* S6 C3 U8 x5 d+ `
[
# i7 I5 I: E5 a% E9 T# z. c! yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 a, E; F3 |; H m* [; a3 s
set i; Y( M: @: }* [9 i2 g
( i + 1)
9 R# P7 f* b5 R4 @; L- i]% t) ^+ B8 A- q) N8 K
let j 3' _3 @! Z/ U$ {) H2 u7 d
let sum-money 09 \- i7 B3 m" r$ S: n; W
while[j < [trade-record-one-len] of myself]' R+ a" f; b1 i) F" G6 J" M
[0 R, G) A( f: `
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)1 ]' y* j' ]: W* o1 ]
set j
# T9 Q% R9 U$ b! {# H7 Y1 i( j + 1)+ k/ b# B5 ~9 i/ n, w
]
( s# D8 q3 d4 c5 ^8 b4 K5 k2 V! Slet k 3
' ]8 m+ F+ W3 r7 S- d1 P3 glet power 06 V6 H4 T! e# \6 K' K: r7 v& R- O# t3 g, x& g
let local 0: o, u5 k' V6 w
while [k <[trade-record-one-len] of myself]/ Q/ y2 S" Q( x9 V; ^4 Z
[& J& y* j$ `' h- Q3 g
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)
) f/ N, ^# N ~* g9 {set k (k + 1)
9 n8 q5 o4 i/ z4 ~, v]
7 ?2 b8 d( [" j0 d' v3 ? |set [local-reputation] of myself (local)
, z' H( z- r+ U. a7 i1 fend
- Z7 ]! e5 q8 ] s" O! j' W+ q4 w l: ^/ c; \; j
to update-neighbor-total/ d1 A# \$ p- V' E! c
0 {/ |, \& V, L. H
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- w# `% D8 r* U. z, u
- @# ~, |4 ^! d+ z! ?8 B6 c9 G/ m
% U8 V3 C5 t$ n3 z4 aend
' v+ ~; I' g# |6 d2 [0 Q0 h( `
! _+ {# p/ T, M2 Q% t) v8 N7 |to update-credibility-ijl
. l6 H, n( l( C( v3 s' y' a% M9 h& x0 o- h
;;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。% n' Z9 n6 O7 h3 `2 m
let l 0
+ j$ K f8 K. r) g) X, rwhile[ l < people ]; N0 l+ n8 {' ^0 |* q* u% _
;;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
+ V3 ~- L9 ~6 c2 }[
0 L _& |% j3 t0 i3 Ulet trade-record-one-j-l-len length item l ([trade-record-all] of customer)( b& d% d! I% [" f9 J, C# Y, e
if (trade-record-one-j-l-len > 3)' G% y* |4 @4 ]' b4 E) L2 m
[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
7 y2 k$ q5 x; q( ulet i 3) x- ?5 W) s0 H2 i: _" x
let sum-time 07 W8 m$ |9 p: \. l0 \# \
while[i < trade-record-one-len]
4 f' ~$ F0 ~- J% M$ G; _[
9 |+ o- T1 o4 l: {# ~; ]( p$ uset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 k" h3 Z2 @0 x: D h8 d7 |# a
set i! d+ |- N# b7 m* y) T. a* J7 q/ r4 f
( i + 1)2 |5 f2 S, W* N
]0 y7 O F1 I2 D! p# s9 b
let credibility-i-j-l 0 f1 Y% g7 S1 O/ W/ N% v5 Y1 q' R
;;i评价(j对jl的评价)
3 z4 p, i$ l$ j% k; hlet j 3
% n; ~: u! I! ?% V% c% {' ~: nlet k 4$ Z3 w$ H' G3 ?) }+ w( z( n) h
while[j < trade-record-one-len]6 c3 }- b9 V) M6 `" l
[& T$ u" U3 B1 y* @% d4 Y5 I
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
' c1 b) C4 e. V* i: h1 p' M0 Xset 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)" D7 S1 H' W/ e* h0 q7 ]; x" s! |/ C+ W
set j) C d1 @* t7 J6 I; g
( j + 1)$ _8 N+ `7 e1 r* K# s0 ^0 _6 ? i
]1 }& i9 |5 ]% F: i$ Z
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 ))( g/ k5 S3 n: d( @: t3 o
2 M+ \6 ?" D9 U8 \* f; b2 _
* D% [" Z: H4 Q1 O$ j! L% g# plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 ^9 }# h% y$ s+ W9 u
;;及时更新i对l的评价质量的评价
* K/ W( `" @5 W4 E0 g3 Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: v4 v8 p2 M- J8 i4 _3 \# ` ~1 y
set l (l + 1)
+ P( b- D5 @8 s( S$ a* \ L]% A4 c6 x0 x. C6 I
end
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to update-credibility-list0 U4 k+ o* `# H; v5 l! S4 Y. t1 n
let i 0
3 R! V6 f# q2 \- H& i( Ywhile[i < people]3 e! ? G$ r0 E/ W. F" X3 M7 B
[% s: T7 h- ^4 \, D5 \: U j5 q
let j 07 @5 E. N( I3 j3 Y
let note 0) i+ H! r+ p5 h ~4 }+ L
let k 0
4 D6 h$ l3 T9 f;;计作出过评价的邻居节点的数目
0 ?2 B$ V! |( cwhile[j < people]
2 y j% o8 _0 u4 j) K[. t# R/ c0 g/ t# k y# p
if (item j( [credibility] of turtle (i + 1)) != -1)
6 _2 i1 b* h% S;;判断是否给本turtle的评价质量做出过评价的节点
8 _' T* w' J( O0 ^$ m+ Z[set note (note + item j ([credibility]of turtle (i + 1)))$ M& F: ~$ _' }7 _$ y1 v( b* q
;;*(exp (-(people - 2)))/(people - 2))]# K+ i1 `/ _; x3 Y, R) L' [- @, R
set k (k + 1)
1 h1 R8 r* x7 z% K3 u- w]
8 E) [# K4 N- u" R3 I1 E, ~+ z" |- Kset j (j + 1)
8 _- T/ F. s. M0 |9 M]
7 i$ q/ h" x' u5 dset note (note *(exp (- (1 / k)))/ k), ]$ Q- X z4 Z* ~& o5 N+ @
set credibility-list (replace-item i credibility-list note)
4 o4 x: h) W& t1 ^; |set i (i + 1)% U; `) i4 E- O$ Z' t
]) J" m5 D( u$ I7 |
end$ d# E3 [: }: g
7 z, q5 p) F$ K$ G
to update-global-reputation-list
& I3 u ~# `* a# M" E1 k7 q: alet j 0! ?4 U ?- v7 }
while[j < people]
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let new 0
8 @5 I8 Z* q( @' a: z% ?;;暂存新的一个全局声誉+ T: M7 e' z2 A/ I4 m: s7 t, v, Q# |
let i 0
+ E) {6 _" f1 N8 tlet sum-money 0, c0 E) _* W6 }& ^& c$ \
let credibility-money 0
+ j# _- Z+ Q. e3 z% [while [i < people]/ u* @1 {9 G3 i" z& P
[
. i7 A" { x9 t. f' }. tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) q. N' ~2 q* K8 }: Nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! ^& f, e4 B3 @1 H: y' ]set i (i + 1)
/ V0 O: ^; y8 L8 S/ u% e9 t% a]
8 ^8 {8 v% m" O& c1 Alet k 03 C4 H0 o/ I' N
let new1 0! v, D4 R. B, | d" d7 C# {) v
while [k < people]
5 G2 z' y6 |2 l6 O[
h2 p6 @8 Y3 Y7 l) {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)
* r5 A% D9 |* W j" a3 @% A0 S U% yset k (k + 1)# }0 b. V5 k0 u8 s3 H' |
]
) ^+ Z- [/ }! j1 E6 ^+ ?" Kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
z0 |: N/ {' Y" Aset global-reputation-list (replace-item j global-reputation-list new)
" V; J$ X# n$ X- D! X: j3 fset j (j + 1)0 v7 T; v& a/ w" I, C: r; h" V
]1 E7 I% J0 F9 ]! k( z/ S
end* o% A: r' y! P* t4 R
5 R" y3 z/ `- O4 [* t$ ?
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to get-color
3 }! U5 Y4 E; i s6 Z2 `( E
% M+ _2 @5 d7 X0 n2 m" w0 hset color blue
. i( o( A0 f1 |end
% L1 {% z B* v+ a$ }2 h4 Z' e. a. v/ ~, ^7 [
to poll-class
1 B# `$ j" R' ^3 hend& l* b/ |. ^4 D' c% f
3 V4 M8 W. K+ t1 j. a M! K
to setup-plot1# s: I1 F2 z9 R/ Q8 X$ G- X
( c) }: }* B& Lset-current-plot "Trends-of-Local-reputation"9 m* t, o/ \, f8 b
( r8 v* K% Z; p2 M5 e! [6 o
set-plot-x-range 0 xmax' q9 F* ?' h2 e. e) M4 b% p
1 q6 [5 r2 ]# U* z
set-plot-y-range 0.0 ymax+ f0 r7 U$ ?! C$ ~6 d3 w
end
: {+ P! ~( h' f; `/ s! X$ g
; u1 h9 b; E# |& C; Kto setup-plot2
: l. _% |! H8 v ^$ B9 }' K
2 I2 d3 I$ P% r; T+ cset-current-plot "Trends-of-global-reputation"
# S n4 Y6 W4 z- X" Y; q- ?( |* X3 G) J0 ?# W
set-plot-x-range 0 xmax& O3 S/ A& `' _2 z) N4 {$ f! l9 Y
) }4 [! y# r" }2 ~' yset-plot-y-range 0.0 ymax
/ {; H3 l4 j+ ] k6 Y, Jend( G' q; D" R' E6 G/ D* P; _
, r; [2 h, j! F% p- h, Y. |. K8 C# q
to setup-plot3
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5 e1 e* C8 F% l6 J& [1 qset-current-plot "Trends-of-credibility"' y: O9 n8 M1 @. @* N9 ?. I
0 Y1 g0 Y" f# ?. d% G8 l, qset-plot-x-range 0 xmax
4 V# V0 l9 C% @
) ? f- _* G. F' V# _- X+ aset-plot-y-range 0.0 ymax+ d q& p; [, G: F
end% r E" ^- L1 b4 _7 d
, e; i2 r! b" Y1 z2 [, B# a; n5 Y: Rto do-plots9 ]2 A' x1 @: t) ~0 B( F, _: d
set-current-plot "Trends-of-Local-reputation"/ ^% G6 r' O8 m% ]" o
set-current-plot-pen "Honest service": M2 P2 _. V. T! W8 D- e v( e9 F
end( S m! F c0 m
3 w* g3 ^, q7 U7 G( k. v2 k[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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