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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
) m! l/ O, N7 X* Q" n, ^1 p$ C# uglobals[
! H0 j3 K) b+ X! E8 x8 Z# k9 {xmax
" `; G* \* d. S" E5 R8 Q y2 Uymax9 u. G7 L; k" h
global-reputation-list
: T: W: d. ]/ l. _6 i! N0 U7 O+ D4 \
;;每一个turtle的全局声誉都存在此LIST中
; m- L, R" w2 j: acredibility-list! N/ j' i( f; V2 i4 L$ a
;;每一个turtle的评价可信度: F) x1 y3 U' _3 d% F
honest-service
9 }* S) I, ?- ^8 Munhonest-service6 R! m6 S5 Y/ k0 k, ^' F
oscillation3 R$ @* D7 d& i& b
rand-dynamic# M; P& v% E9 X, F
]
/ }9 \( J0 y5 u) x, C: k2 [! b9 K% x" y; A: w
turtles-own[
% u l' m* W0 A% Ntrade-record-all- M; K/ @/ l6 g
;;a list of lists,由trade-record-one组成9 D; Y/ i/ f. i/ k+ x$ n
trade-record-one* a/ _& k" u4 Q2 ?3 N0 Z
;;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 u( c% C9 G) k9 ]. J* |: W
, z3 f1 ?8 H9 L% p- b
;;[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]]) X4 ?- ?- d, k
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]
6 U. r3 {, @3 I* ucredibility-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! w' Y+ ]4 @0 {2 _. Q8 V
neighbor-total1 \- q5 w$ @4 j: U
;;记录该turtle的邻居节点的数目
3 K, U; d( w4 F& Y. k9 Y' O: Vtrade-time% J9 L: ~7 j4 O" t; v1 _6 p
;;当前发生交易的turtle的交易时间* P$ r, Y w) a! H( [
appraise-give5 [( |7 Q0 r) L+ E5 c4 O% P8 |, c
;;当前发生交易时给出的评价
0 k% }, K* ^' ~8 ]) R L2 tappraise-receive
) s& S5 e! A( k! `0 D' V A' c;;当前发生交易时收到的评价
2 ?* g5 i5 F" e. N4 ^; M) Cappraise-time
8 Y1 O0 ~! s% r) b;;当前发生交易时的评价时间/ Z- u- [! {- A: Y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 W- N9 r8 e5 V* L5 L5 c+ l/ m4 ltrade-times-total
$ f1 t. d, p8 B# {' `7 ~; ^;;与当前turtle的交易总次数
5 {/ M- i7 ^3 z( ltrade-money-total
5 Y- |" |: \0 h;;与当前turtle的交易总金额
$ S w2 [+ K" x2 y( P. [5 Qlocal-reputation0 s+ ^. v, _3 `5 F
global-reputation7 G2 S( X0 Y0 u! Q: M% T
credibility
* ]+ O7 b& t. k* E;;评价可信度,每次交易后都需要更新
' X3 P7 o( w- t% M, v/ }credibility-all
* D' u7 J' l0 |! e7 s;;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
! |4 Y1 k7 _/ M% N+ L9 g% D+ s/ b) [$ u: `0 s5 `
;;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
! C% g; A( S+ ]5 ^6 w Hcredibility-one1 z6 P, L1 k$ F: g$ F- O
;;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
& t5 Z3 D: Y9 O( H" o. w7 Z; D9 sglobal-proportion
# C9 t! G- b% y) P3 ^customer
; ^ T" T" S. v& F0 ycustomer-no% G7 E) C7 w, m" |5 V) d4 i
trust-ok; \: g# p& d y; I8 A% v& R
trade-record-one-len;;trade-record-one的长度1 U: O1 ^; R/ L( f9 x' c4 j& c
]
2 \" {' Q# D) Y5 d+ W& y- ^$ C. ?; b% q
;;setup procedure
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$ e3 N( F' G/ ^5 D& ?: yto setup* |, J+ N4 _" ]* a, W* @! [
7 [" c1 l0 B! _/ N+ c6 n; m6 N5 Jca& k: Y7 h/ E4 k& A: m
2 V9 T0 A6 {6 I
initialize-settings& V! Q6 E3 M( `3 l, P, M6 }
* Q& o- l2 e! i; y/ [ i {2 H: pcrt people [setup-turtles]& ?8 `5 ^0 t7 N) A9 e
6 P: z3 Y4 x3 s Y% d" @ I- {3 Preset-timer H+ ]+ s- g3 V! u) M8 m6 L
& y1 Z$ A- q/ B7 A( m0 W; K
poll-class# Y8 G5 U3 S* x: C* }* h" R+ G: {
0 u' q q; R X" L& b" {7 t; N, zsetup-plots* r0 k+ s5 u. O) R+ a, {
, _0 o$ G4 c4 V" zdo-plots0 C" \& Q4 u* a( b, H1 x
end
K- z$ W+ s6 N, x! n/ ]0 g& _! l) m$ l: f4 T
to initialize-settings- ^1 Y8 m& {+ Y( \$ t& ]
6 N/ S; m0 ]5 u3 M0 ]8 Zset global-reputation-list []( K# i: ?, c i4 I1 T9 F# v
9 e: @) n' n. r5 x; h: `set credibility-list n-values people [0.5]6 X1 c" Y0 b" H( ]& r! b
; J, E: S0 o, X. bset honest-service 0
# s6 Q7 I0 o( _9 g- `7 o: u" n
) A$ c& U( O4 u0 fset unhonest-service 0
- j$ K; `+ f* j% F) p$ U6 @* @5 |8 `$ f9 m) M% ^
set oscillation 0, n; q. e, ~9 g( m3 \( {
" [7 t0 ^# D; r6 g
set rand-dynamic 0
w5 x# U0 a$ x- u2 [end
- J/ x$ i! K) K
$ ^8 L4 y, j8 @0 ?to setup-turtles
4 v0 ?& [- y S4 }' o6 sset shape "person"1 b* F: n* e8 w+ W" q6 Q p
setxy random-xcor random-ycor
+ w4 s) e! w6 A( N: h1 u; w" |set trade-record-one []
; U% O: z; k/ r5 B7 Z* _" o$ ~0 ?% P
set trade-record-all n-values people [(list (? + 1) 0 0)] % }9 i8 ^& Z2 q# w7 i) S) Y3 n9 C
U3 r3 z; S ]& n _set trade-record-current []
/ \$ K, \' A$ z3 S+ x) uset credibility-receive []
% y. f1 a% y6 E$ Q) g' y: lset local-reputation 0.5& W1 g' p- P. x0 S$ j( g( `$ h
set neighbor-total 02 U# E1 O# R3 q2 s1 h1 J. X
set trade-times-total 0, g+ |4 n) |* w1 Y) t8 J4 ~
set trade-money-total 0- S3 I F: D1 l
set customer nobody
6 d9 F; W& a* g, a2 {set credibility-all n-values people [creat-credibility]
* F+ d- N' A) ~) x* b8 tset credibility n-values people [-1]
+ Y7 U4 U" n& i7 uget-color- \- }; e7 ]: I% ]+ r
1 j( Z$ S7 e+ L: e5 O) g
end
4 h5 H* l, i3 u# l( z M0 w0 Y2 H0 g9 O7 r+ q% P4 N- `
to-report creat-credibility* `6 S6 G. E9 }; v7 L
report n-values people [0.5]
" z1 w" X! c' X- f* x/ \8 _end
$ L& O, P" g; h9 N
6 z2 F- d. U3 o% M: N2 g, fto setup-plots! W- x' W1 s6 S$ _( K) p! r% X. A
4 J9 G( f6 T0 k4 p {0 b$ K: n" Q1 \0 Cset xmax 30
& a" U7 B- t Q3 g% z
2 a8 {3 A2 q: Q3 n iset ymax 1.03 n M2 |6 r, t7 Y) I/ d9 g( H: G
( Z3 \3 `8 Z7 {' u. D* ]clear-all-plots+ u2 p' N; K# U7 f
5 e9 Z* T3 i0 K$ msetup-plot1- |. d; ]. r8 C9 ^; r
; I9 W }# p/ }2 Qsetup-plot2
2 q1 P1 H3 R* d/ x `0 @* j, w" Y0 Z1 B3 k( v& X4 p) x7 c
setup-plot39 f8 ^; |' b! t6 a5 r
end) b% t- n) t, ?1 s! m+ `* ~" |
6 l: E5 _2 \* V& Q( V;;run time procedures
" a1 c6 l" O6 j/ u: R( f, S) I" i
% Z: S: Y5 u; ^! a* s4 f: n/ O- Cto go
- S8 Z! Z8 A) O; L
. X2 Z( y/ ^9 b" [' Oask turtles [do-business]
. d* a/ Z& M+ P$ `end5 U" U+ x( F& n/ C" y9 Z
W) R- n& j5 s" [, U; }to do-business 1 y- i/ f8 ^4 P$ ]8 x. t
! P' u j8 \+ E$ u" g4 }( j! `
% E- _/ ^9 b) qrt random 360
4 u* m" U* @* r! N Q
2 ~+ E0 Y' z6 d' |2 r9 B' U; lfd 1
; m& V' t; Q& |" k- m4 Y+ S2 y7 r& c M7 x
ifelse(other turtles-here != nobody)[
3 W9 p v/ E6 o3 T1 h$ ]+ s1 j4 t6 _! O2 X( Q
set customer one-of other turtles-here
+ i. E' g9 V0 @! d5 M) J7 U, f, q. U8 z8 I8 o! W; [- W2 y
;; set [customer] of customer myself
- }" e6 p" Y6 a/ C0 |
/ e3 s$ u! i" _% wset [trade-record-one] of self item (([who] of customer) - 1)) L7 m1 z" d6 m5 A
[trade-record-all]of self
* F- N) f0 B" e' p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, X" {$ y3 [7 k/ H: j3 a t
! t8 d6 d# L4 t
set [trade-record-one] of customer item (([who] of self) - 1)8 P$ J5 \, _7 P+ c+ L2 y+ L- c
[trade-record-all]of customer2 |6 k# a: ~( ^" o- @3 s) a0 ?# N
" X& z4 g. t8 ]$ [- Z8 ?1 e/ G
set [trade-record-one-len] of self length [trade-record-one] of self
6 F! Y4 [. N3 ]: x. P. o% D8 b. n9 E& ]
set trade-record-current( list (timer) (random money-upper-limit))
9 d6 t: r$ `8 `2 ~1 K5 `# j& w) c* A( A _
ask self [do-trust]
% p/ p$ \" O" F2 a* Z;;先求i对j的信任度, s' k. P4 }7 [
: Q: ^: a* W, x1 f/ r# Hif ([trust-ok] of self)! S( f; [) {4 A1 _9 e
;;根据i对j的信任度来决定是否与j进行交易[- H A0 p1 R! m x1 d
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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( B5 G0 h* L1 J ]$ M[, S" y8 r' | `
3 s4 W p3 K0 b
do-trade
: @' k: z5 y; c) P1 R+ L% t
9 \- F: H! @" O+ t) nupdate-credibility-ijl
1 \; O6 f5 q) ~0 m4 y/ Y' Q/ P. V% g E% F
update-credibility-list9 h' H& w( @ H3 b' |) g
2 x6 C9 B3 Z/ l$ a/ K; k
; A% ` y9 _6 V6 b! Eupdate-global-reputation-list" w6 R! I& ?+ K! |' F
7 q7 i# `1 R7 Z5 wpoll-class1 M$ {( O; [9 I& Z1 H+ M; S
, u% p& U7 o2 y' I$ `( N
get-color
4 q: w) p1 F( b2 b: y( z
$ W! ]; `& ^$ a. C% n3 c4 P]]
( p! A% R% H* V5 T: `" {! J! i3 R- I* j0 E
;;如果所得的信任度满足条件,则进行交易0 B& l: |3 [( I- {- o+ S
) d0 G9 ?2 r/ {* W- `2 v
[0 w6 Y: ?2 S1 [) ~# ~
" {, U5 z7 c" e- P, K f) `rt random 360
" U- P" s9 s- F2 X# N! l
i0 q7 g' g; `& X2 z$ ?fd 1
4 E! a- `8 X8 R; M. _" @
1 a% W0 ?! u0 v0 C+ H# B]4 X2 O: V. |8 a+ d4 M b! |
6 d. j- b5 K, G. Bend
1 u% g. T5 s: Y, m* {4 P
2 h& Z+ m: |! W% ]5 t- P# Jto do-trust ( L' |% |9 l3 F/ N, x; H
set trust-ok False5 I8 x+ h& G0 H
5 n- A$ F7 e( U- M1 ]
. E$ V' Q( N7 v( ]+ X8 o' X3 G( P
let max-trade-times 0' J# R$ U% b3 E8 C: G) [& E
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 y8 U; L9 a1 O: v8 r8 Y! q& }0 U' n) \. \let max-trade-money 0
& ?# d. ]4 _9 U! }foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 V [: e( Y3 m% Y" }4 J# E' F0 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))
6 K8 i2 M g; ?; L+ u$ u! C0 t$ S8 m: o; A
6 U) l, K$ p; R% F6 l, tget-global-proportion
$ y! z( @6 ^9 Z6 @: l7 f% t( wlet trust-value
0 Q1 I1 V0 P |; I3 M" t2 Mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! a" G b/ F D8 x
if(trust-value > trade-trust-value)
4 }, Z" W. z# s! [& @4 C) N[set trust-ok true]
9 X7 t* V- N& Zend0 P$ H9 ]1 V6 ^$ ?2 H7 q
8 Y ^) [$ C$ j% `. l$ t! ?8 h9 D; ?to get-global-proportion
! K( n4 X( F* q! Q2 ^% Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* N6 }4 O8 P% b, ?) g1 ?
[set global-proportion 0]9 w4 h5 x6 D1 Q" `/ K
[let i 07 \; Y" D0 t) x
let sum-money 0
0 m! O- A! R- N$ a5 qwhile[ i < people]
0 |3 D* r# ^* b3 u; o; ][
1 p) g' @" Q; O, ^# Cif( length (item i
" h/ a1 d$ o' _2 D- _6 w[trade-record-all] of customer) > 3 )0 G* `7 A- y3 `$ Q: Z
[
# @/ B0 F) c: I2 dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))% Q6 T9 S' ^4 {8 u
]% i* W* F8 z2 e7 T# C5 v& W- m2 a
]' b" E7 ]: x' g
let j 0& z0 l; ^" N! X0 |
let note 0# _6 R/ e0 u9 O
while[ j < people]
& b+ O# S$ `) x) g0 W7 w$ K[" U# @ ?7 y1 l- y5 n) s! f
if( length (item i2 }1 w$ c1 E8 U
[trade-record-all] of customer) > 3 )* |4 S0 z- N) \4 I! k P8 r/ A* ]3 _6 N
[# e% w# [( ^% c% p/ U# U
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): U3 m( r: K+ b0 r; I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" ^- z( K: X0 c5 e# y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" I: k8 _- B5 |+ Q. j]2 ]# L: `. x4 d0 t4 `5 ?4 q
]
9 F6 P7 e% i% l+ X% i7 {9 M. { U; I) Aset global-proportion note
3 _6 b! v! r3 V3 T& ^: p4 F]
5 y: {9 T$ A: z1 S3 Z3 iend* @$ u. o% M4 }0 N P
5 h. ?% V7 N. f4 r! c" f7 q! Ito do-trade
, |4 o' C, j5 ^, w6 D;;这个过程实际上是给双方作出评价的过程+ ^% ?* m9 @/ f5 {& o3 ^1 d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 ^& E |, y& F2 p5 ]: C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 u4 W t. u" |9 B7 f! z @8 Dset trade-record-current lput(timer) trade-record-current
# G' H" i# U0 m) {;;评价时间
( z b- _- E5 t& mask myself [
4 k! B. r! p# }3 n6 t6 s8 Gupdate-local-reputation
& g9 I- I) E6 x( H0 sset trade-record-current lput([local-reputation] of myself) trade-record-current
- `9 _" X1 J. m! P% `7 g! Y]. q; ~2 j) j0 K$ m7 B5 k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& Q1 M2 N1 S7 I) _5 D
;;将此次交易的记录加入到trade-record-one中& K6 y! |, [% y8 t" |+ V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 C" R8 Z; }' @9 H# L
let note (item 2 trade-record-current )0 w F% `& k6 u- x7 E
set trade-record-current
1 g2 s+ ~. ]$ M5 ]7 q- V( w(replace-item 2 trade-record-current (item 3 trade-record-current))+ b5 O* x9 \. M+ o
set trade-record-current" S/ @1 Q, ]6 H
(replace-item 3 trade-record-current note)
( k4 J. U6 i2 G0 m5 `/ t0 o5 i, L. M2 y
0 n/ n; {' t$ E- }$ p; n( Q
ask customer [% k4 T& Y7 F& P4 Y
update-local-reputation3 k# d6 u" z6 H. f0 ]1 U
set trade-record-current
3 i" r, y8 u0 f @, F B/ g% V9 @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ B; |3 f7 y5 m6 R, a3 u! |1 _( J]) o: s, o4 n- S q$ z. J% B; \
- I! {, H$ ~/ ]' j4 o5 w
; l/ P: Y. \/ s+ D1 n6 E# ^7 {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ x; L2 S( i: ]3 _) v0 a
# M* U" j& g3 u7 V5 i- D! lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 |# j$ V0 ?6 M) J) s- q/ g;;将此次交易的记录加入到customer的trade-record-all中
, D y6 K; J6 H& Gend
; e7 l. l8 |* e. H' N" N4 L9 G8 F o$ V$ G7 W
to update-local-reputation/ ?* ]4 n/ y; R4 z8 r* ^" H b }
set [trade-record-one-len] of myself length [trade-record-one] of myself
' }# o3 _: [+ N8 x y: v. ^
4 c- [$ D* o5 g' [3 h8 |
9 Z7 R% H2 n9 J4 s4 ^;;if [trade-record-one-len] of myself > 3 8 W4 e! @+ }( S4 `0 `
update-neighbor-total
5 D1 k- r P) j;;更新邻居节点的数目,在此进行3 l: ?5 G8 J! ?( P( f+ k3 f c
let i 3
& r2 `9 g& }7 H; {' ~, _7 zlet sum-time 0
* ~2 {3 `- l1 C( j& q8 T+ z3 `while[i < [trade-record-one-len] of myself]' j( `/ n" V" J. L I4 I2 b
[
% H/ Y! d7 d. Z) b, } f, sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' y9 Z9 S4 R% p0 ~" g* _( F! A+ Oset i! a0 r( M" M: o1 E* d9 P
( i + 1)
! l6 \( z2 y* c M]) i: P% ]0 d+ u& l7 J
let j 32 b5 {6 a6 ~; c
let sum-money 0
+ b' T: }! R( Q) v3 zwhile[j < [trade-record-one-len] of myself]
% N9 H) T/ A* V# D- b+ e8 [& T[5 z! G6 I1 F+ f7 o, D2 |) I# e/ M* P
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)
a; u2 y3 w# j% eset j7 G+ k1 m4 A0 t' O+ e
( j + 1)+ z0 F- @- p2 z f$ D2 p/ R$ g# l( V
]
. @* G3 {3 e& b! S, E. N( a5 B' Nlet k 3, ~9 k- j) c- H) l6 n+ X% x
let power 0
. a, N( b. U9 F0 E& C) X `let local 00 e1 L1 k# k( v0 Q
while [k <[trade-record-one-len] of myself]
4 g X8 y0 w0 \ L$ q' F/ S[1 a q& T; ]( [2 O) ?0 K
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) ' Q# E' x4 b. i2 b% U+ `# F6 p
set k (k + 1)
& H. c4 E+ @: Q* C9 V$ J]
1 ?+ \3 z8 K D# F; U9 lset [local-reputation] of myself (local). B; }( O8 ~5 U" ~; z; ~0 U& @& r
end1 X5 `2 Y3 [. }: u& d
2 y( D" n @( x& @: ^8 Rto update-neighbor-total
! ^% u/ e1 a* n; T
6 G/ a' }3 V- o n" q6 b9 z3 h2 Eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 c/ ?0 s. M. A- G
4 l T0 {- f B4 A* Y' `0 l! x' e% G) y9 ~$ u
end5 r f9 K& p0 E Q! c
6 h1 w" Y2 D8 r1 [to update-credibility-ijl : d+ }, k( B& {8 P0 d0 c0 V
! b H, C: O- b6 K. 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。
2 S& ^1 T9 M- qlet l 0. e* V% p, h& [$ Z
while[ l < people ]
% \5 ]: o, l) P3 l: G2 ~. Q;;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2 w4 Z- s8 q& M* h+ E# Z
[
, b1 e3 L* ]/ Q- A' |* \let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 m* H0 \5 p2 V' A! Y) W. g, v9 y- uif (trade-record-one-j-l-len > 3)6 E4 ^5 ?5 |8 l2 N% z% w
[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
1 G, s$ b: Z9 ^let i 3
[" X: ]6 c. j$ slet sum-time 0- S. U" X3 v, f! i
while[i < trade-record-one-len]
0 u. H+ I8 G% k7 d: ^3 z! T[$ E2 x8 G" P& S& x# c2 z( e( d. C
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 N9 s% D, [8 ?% Dset i2 l( m9 V9 G) w
( i + 1)& Y8 K; V( s' |/ ]' f
]# t9 w$ D- a3 C) u6 I3 Z& K) Z5 \
let credibility-i-j-l 0
6 ?7 d: O/ ^; [3 {0 f+ G+ h/ Z9 I6 b+ g;;i评价(j对jl的评价)! L0 C5 X7 Z" `# U! C% m/ P
let j 3
: F! I. Q2 t; @3 d$ Qlet k 4
5 o0 R) b: w2 u( ^while[j < trade-record-one-len]
! B# M) j* t8 c1 m1 {6 v1 s[
& [ o8 o' K g) Xwhile [((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
0 l L5 c5 ?- e" Mset 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); N" \5 E+ B6 y& m ]! N2 G
set j, v# C; ]" t6 A- w
( j + 1)1 A% H" L2 N$ u4 C/ i
]$ e/ M) I9 M$ q6 m
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 ))# D5 R; S8 f+ u% q& A2 ?9 o4 ~6 [
( Z' r5 U# F& m$ O: K$ I+ r/ M
8 @- I: B4 _# P& r9 x, Mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
_+ {8 E% ^- L `, L;;及时更新i对l的评价质量的评价
/ Y% h5 a5 h/ t0 K$ j" Gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) u+ F( C( L3 z9 j8 G% X1 }! ~set l (l + 1); _2 x7 i. f- v( c6 F7 |, @1 v
]; _1 q( O3 M/ a, k) L
end
* |3 \% @6 S! M% ]% r5 I- R8 g8 e% ^5 M2 M2 J
to update-credibility-list
0 H- b- y3 h' D1 U4 J! T. n5 I; P9 q: W Slet i 00 Y% h0 k) E! [, [% j# t
while[i < people]1 a8 G; c( J/ y1 c/ B
[
5 F0 }* t9 {+ g8 O) {let j 0
, |3 a" N& }% llet note 08 J S1 b$ S9 A/ R* Q8 r k+ o" l
let k 0& O# |" o+ u/ S/ a" q% G6 B0 o" H2 W5 y
;;计作出过评价的邻居节点的数目
$ z. t4 }& v8 K9 |/ \while[j < people]2 C3 }1 |1 T) s9 y7 p
[, Q% s0 v v) D+ [4 g
if (item j( [credibility] of turtle (i + 1)) != -1)
( S' @: q/ @! ?;;判断是否给本turtle的评价质量做出过评价的节点
) @5 Q% [) a* f+ c[set note (note + item j ([credibility]of turtle (i + 1)))5 W1 W6 j* }- [- \
;;*(exp (-(people - 2)))/(people - 2))]/ n( Q6 L& F5 N8 R: S0 c$ z* q
set k (k + 1)
9 Z1 p' p9 }1 S6 a* d]
4 I. x) D2 L0 cset j (j + 1)' V! u+ j+ @7 H, \' j: h
]: G( \0 j& ] N. k
set note (note *(exp (- (1 / k)))/ k), O1 A8 }. @" O$ a& `6 O+ r& O/ a
set credibility-list (replace-item i credibility-list note): }: {& Z: {" c+ k5 P
set i (i + 1) r4 w. i, A$ G0 x
]
8 W/ h( o0 q. Lend4 H8 j4 ^9 m, w( x9 _
) p! `9 b% J& ~. T2 d9 u5 qto update-global-reputation-list
3 d8 ^. f/ I. n( W$ { glet j 0
& c" Q0 W, I% n$ q- A5 [while[j < people]
* A- W5 u. e' ]' R4 W[5 i! _2 g" R" f
let new 0. g, |3 g7 Y- Q/ u6 \8 G
;;暂存新的一个全局声誉
! b) S( B+ |) I; o# P! ]# O. slet i 0
/ f1 q6 ~: P4 V9 J( g5 C; F1 }0 O! llet sum-money 0. W/ b# l; r2 N) L
let credibility-money 0
: B$ k: f9 q& [8 C2 Kwhile [i < people]
" x( i+ a4 ^& B1 g[
( G0 N# O5 F4 f) ]! _; yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 e. D6 v6 p0 v6 u# g
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) Z$ K5 g3 T9 g, T7 ?: o
set i (i + 1)
3 w' p) E$ C; Q& U& |. w]
( h+ k3 E: Q( c/ o, U; \9 @* Wlet k 0 S: q2 H/ `2 d) l
let new1 0
% A$ n" A4 \) j3 Qwhile [k < people]
3 u/ c0 x! p# v7 a7 Q9 {9 N[: s( \, n1 e% z5 S0 W. |
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)
e; _% j& ~! u& l7 m- Fset k (k + 1); X& R. I6 _" |& f
]
* h+ K+ ^3 |# k: |5 \" ?+ Rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ x8 h, ?% E" i$ Sset global-reputation-list (replace-item j global-reputation-list new)( C9 {& q) e5 t4 a, p
set j (j + 1)
8 L: S% p# D7 |+ |# B6 x]7 Q$ c/ n* j' a- z
end
' N: g6 O; ?! c6 ]
' l- \+ Z; N" S8 q( x5 i/ l. x9 z6 P
* h$ S7 s; ]+ T6 t9 s, n- a& B; c. Q. `- N4 p
to get-color2 U: a7 e( ~$ M1 @2 H$ S
& f) Q9 [+ a( h5 \$ u. n# \; r' B/ t
set color blue
2 W; R' b* r, ^' _end8 j' K @0 l, T/ R' W
) v- W0 P3 h* t4 |
to poll-class
/ S7 P% ^- a1 n/ {/ w: cend
, g8 J, x' m& G5 `' g
( d$ J$ _- a- e* |# R' q! tto setup-plot1
5 K9 A8 g8 G( _! i! v" Y
( l2 F3 p# i+ e: m8 j: Dset-current-plot "Trends-of-Local-reputation"
) N- W3 C7 F+ ^; f/ f0 n b7 U9 C
. w) u1 W" ~8 w( R$ hset-plot-x-range 0 xmax, O+ L) i& x# D3 B2 Z2 r- y
/ J! R5 q# N% H" Q7 ~: Kset-plot-y-range 0.0 ymax
9 R! Y; L2 b4 ~- p1 H2 Zend& U" \' X+ ^' c
; q- f4 }; S! O) [0 Q6 T+ pto setup-plot21 x7 J5 C% [" u" {) D# ^& x3 f( @
( V# {- F0 l- I) {7 R. k- fset-current-plot "Trends-of-global-reputation"
2 f& s1 a, C1 ]4 X; e+ r$ y& ~( z) n, h3 h4 ` L
set-plot-x-range 0 xmax6 [3 {6 L2 \0 Z0 r/ i
* i8 k |. }9 ^# c& J
set-plot-y-range 0.0 ymax
% R( R: D n9 P# y; C( Yend
y: Z' N: \% ~ ^/ W, b. s) o
V0 r( d% N2 i! B0 |. A# nto setup-plot3
' k" g/ j6 @7 K3 ?( a4 s) w* O4 B
set-current-plot "Trends-of-credibility"7 K E# o6 ^0 F
+ y$ x# n/ m Yset-plot-x-range 0 xmax: V( d, b9 x3 R) s: k- ?
: t) ^+ K7 K3 {set-plot-y-range 0.0 ymax
* d( j8 O: }8 V$ ~, `4 W2 Eend' s- k/ W. Q5 L5 e
( }$ s- ]3 w7 W7 v) `
to do-plots
$ I* ~/ T# p# M2 S, J8 Lset-current-plot "Trends-of-Local-reputation"
+ n2 @1 \. M- w; E Y; bset-current-plot-pen "Honest service"8 _* O2 Q4 ]3 D" [( u
end
! O- N! X& T% N; \ J: h8 \' `# |$ z0 y$ o- a
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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