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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
5 T; D0 P( [- N: t" E2 Tglobals[
" B+ T; o3 ?* M yxmax+ ~3 y) T! o% P ~# s% I0 Y
ymax4 p# Q9 y/ S9 d8 z+ q
global-reputation-list, ?* L6 [& k4 V! r% O& A
: n. a M" c. [" q% h4 m;;每一个turtle的全局声誉都存在此LIST中
- B$ Z8 J* T! Z! t5 U; ~credibility-list
5 V" d1 h. H0 L;;每一个turtle的评价可信度
& W4 d' {5 I7 Ahonest-service
- }( g0 U+ u/ q3 z: b. V5 i/ t+ iunhonest-service8 X7 F, o$ b3 Z$ D; s( v) B
oscillation
$ l0 B3 F. Q8 O' ~5 ^rand-dynamic
6 `1 N' v* \' p! e, ]4 D. I]
; ~( M: L8 w( U
9 j8 h3 R. Q+ a) i Hturtles-own[
) Z. L# O& X$ ]0 T: Ktrade-record-all
4 h5 i1 \; P+ Z( M;;a list of lists,由trade-record-one组成
6 J& @, p: |' K# |% w% atrade-record-one
8 b! W9 Q! l u) ?;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# v) b8 L7 c4 N p1 Z' p( [6 v9 y
9 L* }7 J0 I+ I7 h1 Q1 S& {+ K( {* 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]]
3 x0 U3 {/ z) F9 B; T! u" A' H6 r. utrade-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 h3 l* e3 u+ @0 J9 M( v4 }
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, e' P; r& p2 F, h! L5 r0 [! N* ?
neighbor-total
' }2 O6 C) G- L3 m! {$ r;;记录该turtle的邻居节点的数目 @" W, |; c+ A7 A8 ] }! m
trade-time
. Y3 L+ e0 S, x" z7 t( F6 o;;当前发生交易的turtle的交易时间3 @9 g% v% k+ a \# e1 `
appraise-give+ h1 i2 R' Q# y
;;当前发生交易时给出的评价
1 L: K: a3 ~2 b7 J" q5 Sappraise-receive
. k _- F7 F( w$ n& v; d: };;当前发生交易时收到的评价3 y$ H) ]! ?3 M) {6 B
appraise-time
: M: d D9 m r+ L8 _;;当前发生交易时的评价时间
( }: L" M0 M! k' ~2 Z0 Zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ F. Z3 v+ K% Htrade-times-total8 b" Z( h* r: U: C0 O
;;与当前turtle的交易总次数# W2 J+ w% B6 A4 I# l
trade-money-total; K. E C, S# M- a- d. I! U }
;;与当前turtle的交易总金额1 A: W4 N0 L+ i
local-reputation/ e3 ?6 F1 l' A2 Y& Y% g' x+ ]6 x: |
global-reputation
+ W. ^) y2 h D/ Mcredibility
. l' I8 d! ^) S3 A* m0 l' C;;评价可信度,每次交易后都需要更新
( h1 p, ~. f/ N9 V0 O7 W/ L" Bcredibility-all
, {" G0 f. z& R6 K" A" u) h;;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
8 \6 X3 W1 S y7 o1 Z
4 a- J5 \) k- r. c, ?3 i;;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
h$ }# h5 x+ L2 t+ ecredibility-one
7 w6 {2 d/ P: T" s) Y5 r8 };;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 G& E2 f/ ~& Z/ d, ?/ G
global-proportion, ~+ e7 X9 H9 @) k4 i
customer4 D s( v8 y( {" W% W2 B T
customer-no
1 v J4 N0 l# Ktrust-ok
, l$ y2 B( Z. A2 U, g2 x1 atrade-record-one-len;;trade-record-one的长度
1 d9 y" R+ r4 ]]
: I6 C; B. d+ D. t( n$ d) s
- k% H- @7 c9 y;;setup procedure9 E- ~7 p! E7 u! ^$ J/ b) X
2 ^' w; j0 _ j: x+ Lto setup
) z0 p4 @ u' i* J3 q7 c) }$ _
* O2 R# S! j/ cca
* _0 d7 B2 J8 ?+ D( M0 c" j! o5 [) [! R3 E$ X4 |
initialize-settings
, M( e$ Y- k" o) I+ i8 F! |% Z1 V2 m) i: h! L. K8 V
crt people [setup-turtles]
5 E( | x7 u8 X4 b. L2 }& Q `2 a" s4 |/ b# w8 [
reset-timer
/ J$ p, {5 g; f9 N( T) E) g
' z* T+ d- z" E2 S% l! x, Xpoll-class
# U8 v8 V% M6 l1 A9 ?5 ^. p% ?1 Q# E |
setup-plots4 |( E$ n' ~+ }+ T! o. N
' L) [, |/ h Y( hdo-plots2 a6 x3 W4 A1 X+ V! b. ~
end
8 R) t4 t' a+ U) k# y2 |8 B$ N4 O* X+ k# H/ p+ y/ t
to initialize-settings
6 ?, _5 K: r7 q! I0 k
" {( g; ?; R- @3 d5 d4 wset global-reputation-list []
- K' }7 |& u1 v, t" ]
) q1 S5 T$ o$ y. }2 l0 }- \4 Mset credibility-list n-values people [0.5]
) R, M! z2 H3 ]6 D& y1 j' t% M d5 s0 y
set honest-service 0
% A4 P, C. x- G+ c+ H" H7 z2 O% u+ G, Q; E& J1 }
set unhonest-service 0
: C1 H6 H# _) \" @7 e; ^! A. M1 v6 x
set oscillation 0
0 _+ q& `2 [5 I, Y7 Q- V+ b( D
$ p+ Q# _% u( Y/ y. lset rand-dynamic 0& p+ ^9 S$ d& E3 u# {9 O& e3 S- h* l
end
3 J# P6 M0 [" {5 n7 Z' D" c4 H. v
+ X9 p+ E" N/ Qto setup-turtles
* C- Y( D+ O. Q" o4 e/ z; T/ ^* m. Yset shape "person"
- k* \$ ^! v+ D4 c- ]: esetxy random-xcor random-ycor- I& v# C' H0 F. {
set trade-record-one []# m/ Z! h5 ?; R; O6 r; q6 o* k5 q& m
/ H- Y% D r% F4 u) Xset trade-record-all n-values people [(list (? + 1) 0 0)]
7 y, z5 d1 Y L' a! J4 U2 N) e. s: k2 f5 A6 N
set trade-record-current []
/ ^" r5 g! A& ?2 W, D6 I) c2 }! Eset credibility-receive []
: ~, w& U8 o) l, ~& o6 pset local-reputation 0.50 {* m- H; \6 \0 `$ P. ?$ Z0 E
set neighbor-total 03 `" k0 c: @: [( a
set trade-times-total 0
3 A) l+ E! [( S. g1 Kset trade-money-total 0
; L; |1 U1 C6 Z: D; D' c6 Nset customer nobody( l+ a/ L+ P% H
set credibility-all n-values people [creat-credibility]
O7 V1 y) R! A7 a. N3 ]3 M$ ~set credibility n-values people [-1]3 Z) e) g# ~$ ~$ o8 ~" q. c* x
get-color
- K8 ^- {2 W( y( A B5 }8 d
8 d3 T6 Y8 I6 E0 [4 ?end* z+ |4 `+ m! S' n) J
4 h$ F4 M! N8 C+ d2 `to-report creat-credibility
4 ?- h' ]+ z) ~3 Wreport n-values people [0.5]. W1 b/ H+ x" w9 W9 i/ x' m
end' B) r0 u* X- d; o1 i8 l! Y. T
6 D! n n, n( F; X6 u4 b& Z
to setup-plots1 X* I& s3 v4 H
; B$ ^/ t0 R: _1 W3 s1 I' rset xmax 30: |5 n7 p4 E7 @! @* o1 q4 o
- d5 Q9 K8 O8 t1 k8 X# N# }- aset ymax 1.0' o8 v; x% r7 g9 H0 n2 K3 @
) _- M& v7 w, _& q* Jclear-all-plots; a3 v2 q- } V6 F. l7 B
2 Q( k. i( N7 y; z* } S3 z9 @ w. V
setup-plot18 v* K, v( A2 F9 P1 m
% ` y A0 E$ X! F
setup-plot24 t3 N' ?( J! w" W2 |- T J" K, s
8 U: {* c8 w6 x
setup-plot3' ~2 f8 S2 G) e5 L) {
end7 i7 m' Q2 L6 Q; _' Q1 h7 O2 J4 T
0 h3 f4 p( a" q
;;run time procedures' i( w) N7 W" v3 f
: c2 K( Q% j4 j/ y9 L2 |& ?, m) N! @ o
to go
: E2 x4 s. Z. p3 b
6 w; H) u8 N# Uask turtles [do-business]
( p. w: W8 ? c6 L: Y! A! h, H1 {% gend0 q+ s( Q. |8 z$ e% f) c
) H# x6 b# S! r9 f- N3 [to do-business
) E% \% ]2 R! l2 }, k& O, Z5 f# M( c6 ~- J' w
7 {3 P A: x6 N5 x) L }
rt random 360
& e `. v! n) K X
8 X2 p: a. j6 ?: h" m7 ifd 1
, P; b$ Q3 L+ @7 | e
" E' x5 m; f6 V4 m6 o* Zifelse(other turtles-here != nobody)[' x# p" _- Y" G8 }& j1 `& d; D
4 @& S6 K, N' [2 H3 a4 y8 V- @set customer one-of other turtles-here( s, f6 u' E" B2 f
$ l: p, z0 T/ g# U9 c
;; set [customer] of customer myself
% `8 a& E$ E0 Y% \3 r A" `- ]0 D4 S& e
8 `. f, @2 I" Sset [trade-record-one] of self item (([who] of customer) - 1)
t( D) ^7 b5 n& p- G' e[trade-record-all]of self
& O, N4 V- Y m- u2 r/ q" `;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: Q$ m$ A7 E' @3 e! r
- |: Z4 d# @# [7 O! }
set [trade-record-one] of customer item (([who] of self) - 1)
( N. ^+ P" k" e" }; ^* o+ z[trade-record-all]of customer
3 Z: \8 g/ t6 T6 M+ c/ ^( Q- _3 D" b$ Q. z) ^, j5 A& `) J
set [trade-record-one-len] of self length [trade-record-one] of self" R7 M0 l8 z% g" `5 J: w3 {+ z
' Y1 |0 W$ ^: D. [1 i" |) tset trade-record-current( list (timer) (random money-upper-limit))' R8 P9 N8 G2 ~- a( y9 Y* n
" K+ N6 P5 _6 \8 ^ask self [do-trust]
' i! y' P0 ~! j& V$ n5 X" I ?- w;;先求i对j的信任度
8 t' f7 H& l, D! N. `6 ?0 S* N
( F* W' _+ B5 g; B) o1 C! nif ([trust-ok] of self)
1 J: J* S t7 d9 r! C4 }) [' a;;根据i对j的信任度来决定是否与j进行交易[1 O( Z+ O5 m* X+ I4 U
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# T* }" Z# D2 Z: v+ a3 ]
6 v& P9 H$ w; n1 q0 L$ J
[8 c' j) E$ L' d8 c
+ A& h: o1 z0 d1 B
do-trade
% ]2 U# b+ i& N v: y' b4 \
/ s9 N ~" o% s% a* N5 W' Qupdate-credibility-ijl& k L! g0 {/ N
5 G9 E5 t! j+ Z: x
update-credibility-list
: m* e7 f/ I, Q6 t" y# X- J$ R" R, a9 c/ r) a( Y; I# V
5 v6 |- S0 N* V; dupdate-global-reputation-list
* B5 B4 J, N6 K5 p9 |: b
; A& A- `6 _. [/ ?4 Y! r" f/ O- Spoll-class
# [4 g" b$ G8 z0 @# f% j
@% ]" c1 V) `* X6 hget-color
& N6 N4 V: j( p) z& A$ V( M: Z9 [# r( \- |6 Q$ _/ O$ e
]]' k4 l0 {+ D* V3 f
$ n: l1 W/ u3 ~# F$ g0 p0 a
;;如果所得的信任度满足条件,则进行交易
; | N1 t6 k+ Y( _5 f3 [! j# s
* {' @ n) n7 g0 @7 U( m$ {+ t[" k* P( L1 }- C4 Q- f, ]4 V2 `
, l- Z6 t$ p5 J5 Irt random 360
4 N/ w$ e5 D. X' q, F3 ? N N
# y7 i6 K" a* p) Ofd 1) F2 y! d' D U5 Z# K1 \8 E5 E
7 z6 V2 N3 |- J* l+ G! {
]
4 \ j8 x: O& R
" j! b. D; J# J/ y+ K3 a1 Yend, ^- o' g1 i! U ], l
2 \( E0 i. ^! \ }/ j; ^
to do-trust 8 H% c- c0 \) A. \+ X
set trust-ok False
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% c5 \4 L. Z5 J; ]5 }$ A4 L; E' N( g% A
let max-trade-times 0
& \8 x- q% V' t( U. Z& Yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 E" e, D3 g4 ]8 D3 G% d! `let max-trade-money 0/ S% I1 g5 x- |6 T6 @! U6 r! J4 W
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 y/ y2 K/ ]6 _! S6 W; ~" a0 j
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 W5 A6 F) i: z5 r
' f- C4 V& D1 t
3 T1 B2 p$ D# A I; vget-global-proportion% ]8 K J7 U' i8 O/ S% N5 S
let trust-value4 F9 J% Z: b) K% e
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). z3 x$ o. T# M! T. [9 ?
if(trust-value > trade-trust-value); A' s. D. @" y8 T5 B# |
[set trust-ok true]) i/ M3 S7 j& F+ ~
end
. ~! \9 i/ o6 ^! w( _# n, G u' e. W- \; Z4 M9 x7 i
to get-global-proportion
' O9 R2 q; U7 d4 Z9 tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* J8 s0 Z8 K- ]9 ^4 b. C
[set global-proportion 0]% ?! l* j+ t4 A5 o9 r; {
[let i 0( r1 ^( n; D; E! }5 S' r( R# N
let sum-money 0
+ y' ?" ~! x$ ?) Owhile[ i < people]2 L! D+ N$ j# C7 t0 f+ X3 M
[, L- x( S" X+ @4 v) r3 d- x( X
if( length (item i
: y( _) _/ j; @[trade-record-all] of customer) > 3 )
' b8 t* f1 U( P% T0 M8 c[
. o) U0 F; T: o+ [set sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 ?* L1 {0 R! `- z( G4 G) v# L
]3 M) Q) J& R. _% s
], h! t& P) D7 L+ w+ f
let j 0: ~# P, k4 d: c0 D( g3 S
let note 0- v& A4 x( `1 i. ?4 F$ C
while[ j < people]+ W# f( @" a; M0 ]" m# ~/ |$ p! N
[
/ I9 l4 i0 L5 K, \0 F; F- pif( length (item i
( q( m, O! k8 }- i8 @[trade-record-all] of customer) > 3 )
% c# J5 z0 ~5 }" L R+ g[0 s7 @6 {2 _ `: E" {5 R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): _( g' `* x' D5 w/ n5 L
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% }% f) Y, j2 ?. O6 m' b8 n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& o- J z7 a3 Y3 C9 K]
, g7 e. ?, t( ^]
: `- C- Y& I3 j9 y9 z" c3 t6 qset global-proportion note% X$ Y5 b5 d5 _
]9 e- G( f8 @2 G4 `, k) L
end' O4 v0 M$ ^5 k6 ?3 l! q
- @4 m- M1 F5 x' e! P
to do-trade8 \* n8 d# X$ ?1 T
;;这个过程实际上是给双方作出评价的过程
2 l* r9 @/ H$ ^2 s( H3 X. Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) k/ p _: r: O% N2 A- u- C4 {/ b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' P6 ~* s' h( T: v" V
set trade-record-current lput(timer) trade-record-current
. q! O. \) X# S! I0 |; c3 N;;评价时间
9 M3 }+ E" F3 O4 e; ~ask myself [
9 V, F" L5 n7 H* _6 i( oupdate-local-reputation
8 F; `$ h; Z* r5 U. Fset trade-record-current lput([local-reputation] of myself) trade-record-current2 X& J ~# \$ v! O" } N
]# @5 a& h( D- i" d4 T
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: B. R. z9 @: N& a9 o J' l
;;将此次交易的记录加入到trade-record-one中
& \0 U7 f1 d- Z7 _4 oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 q3 N& X4 ?. a& L
let note (item 2 trade-record-current )
: |# R3 h' X! ^. {% eset trade-record-current; f! F1 p! I: M6 b! S, t
(replace-item 2 trade-record-current (item 3 trade-record-current))
, P2 m) T8 A3 A) Bset trade-record-current
) ?! Y! }& `8 k/ s4 H- ]+ _(replace-item 3 trade-record-current note)
$ y+ d* v" l* `/ {* W9 T; ?
, l2 v3 {3 A: k* v1 m' B C6 S& Z- e% i3 V1 }/ i+ K3 Q I, m
ask customer [
' @5 L+ l4 o7 h' {2 [& _" Yupdate-local-reputation& j: w* w" ^+ j9 s% [ n/ N
set trade-record-current
+ y+ R6 j9 s$ }* }(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 @. K( f3 e9 A
]
2 I( ]/ s7 Q& G3 F; W7 }' ^/ ?3 d- ^/ C6 k1 G3 k
3 A! _$ K! |* ^$ M3 _; `# W+ Z- @
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ O4 m: J( i5 W+ Y5 f
( D) U4 s8 B6 m$ B/ |* R* Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' E1 O e3 f* x8 t2 B
;;将此次交易的记录加入到customer的trade-record-all中$ B' H# g. B0 i3 f% |) `( @
end, S5 x( i: k# Z: k/ B9 L
s' o# t) ~. c/ \% n0 Zto update-local-reputation' `+ [3 [+ z; [2 }8 ~$ _
set [trade-record-one-len] of myself length [trade-record-one] of myself
3 V8 Z# M% H1 w. C1 _2 _% d3 C9 g6 l+ Y4 n: C+ G9 e. u
& w! @2 h* D. @% Y! l
;;if [trade-record-one-len] of myself > 3
, u+ m" V' p6 G0 Y8 `( f! d" uupdate-neighbor-total
2 |( l) m6 @8 Y;;更新邻居节点的数目,在此进行 n G: s, ?4 d. s" Y
let i 3
) r! j7 m! k4 f' z7 C4 W3 T1 clet sum-time 0
* O5 Y% M: B6 e% Owhile[i < [trade-record-one-len] of myself]
) u0 p. n3 p+ t6 f9 b& k( G[3 l: W% M4 G/ [ C
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' Q' z, m" t. Y, }4 A J: pset i
8 w' }8 x$ C, W7 y4 H& z5 M. t( i + 1)/ V8 d0 y, s) a2 p1 _2 l& r# @
]
, t$ n( }! x( H6 W' I0 Ulet j 3
' H g. o3 A9 |4 ]1 |- llet sum-money 0
3 p0 I% I' _3 o+ P8 |while[j < [trade-record-one-len] of myself], o1 d- c9 X' C# n$ O8 o1 I
[" [2 n ~* j9 L/ R6 N
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 v; s( E% V3 s9 r9 A$ R
set j
2 B9 D, x3 p# T1 ~, b3 F( j + 1)! r, \$ T* e! {2 G$ ~1 B
]
. e( \- r6 F2 E# h& [1 A; ]0 q. qlet k 3
* o- S/ C! U) r% Q6 \& p8 `' Clet power 0; s3 v; A3 ~/ o. R1 e
let local 0
. r) N. [% f% x6 c/ N9 O' i/ F3 Lwhile [k <[trade-record-one-len] of myself]
4 [0 ~2 ?% V! Q7 B, E( j[4 q! B, E' a E# H& X) F) j& V
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) 3 z" |' s; E3 F; f, S3 W
set k (k + 1)! w/ h& P- A' r+ \- ]' T0 j' w
]( [' {2 X m$ n1 A/ L+ Z! v& V
set [local-reputation] of myself (local)8 u0 p! M$ s1 k; ~- m
end* B$ \- B4 m% ?& a
. v8 x* J* f0 Oto update-neighbor-total8 M7 I8 q- L/ D& j' r% W
( p2 x* o' G1 `6 l+ _if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# _5 ]" N+ z4 F
: b- B& {$ D" `+ r4 k3 @) w6 }: K* c. F" W: v3 }# S) I
end
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6 d5 U! ?& R; d, j$ | a y4 sto update-credibility-ijl
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% K# v8 r+ V( Y; @# Q6 S3 X;;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。7 ], U& O, b! J' {
let l 0; c/ D9 i3 l K3 v
while[ l < people ]
& a6 G9 L6 F% p" {8 h4 C0 \;;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
8 o8 \( C3 D; I: i! O+ @[! J( g6 j5 I) u0 ~
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( o* X0 l( r6 z/ J) S: i# g% t: R# Wif (trade-record-one-j-l-len > 3)
2 J3 X% t; r! ~% Y6 D; t[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# K2 A" p0 M! ^# S
let i 3
2 H! V, V* x" y4 g0 ]let sum-time 0
8 K1 M5 q, k1 [# l: f4 ~while[i < trade-record-one-len], b+ g0 L: J+ O F( {8 w
[) I, W3 _5 z4 }6 \' Z1 I
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
N* E8 G3 r' M: tset i. I6 y& R4 c5 X- q* l& T% m" N( a
( i + 1)4 U) i# |: f" J
]9 D4 w F! i) T/ d1 c
let credibility-i-j-l 00 W6 E6 T( h8 v' c) x1 P3 M
;;i评价(j对jl的评价), \6 ]+ K) j X8 q+ e! Y, @6 ?
let j 3: X) e3 @* U% K2 i9 V
let k 4
( m/ L% o( k5 Z8 T; F9 }' ?while[j < trade-record-one-len]) Q. c t' D+ H6 b9 t4 T _/ y
[3 M/ X V6 d, q" H
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
) x: X H. m* v7 a- S( n: V E" Fset 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)
8 {+ G& N: h; y e2 V; K& v# aset j6 E. F( j4 G. _1 N+ L& q1 S0 a* l
( j + 1)
* |' Q+ w$ F1 F5 }, D) m6 z]0 i, Y! J, W- ~2 N
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 ))4 P/ m$ i3 {( `
+ J" U1 A4 Q0 o3 @" @, m
# W" [& h! l: P6 I6 Plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. c2 N& j- d+ l;;及时更新i对l的评价质量的评价& V5 W+ T4 ^; v0 T6 A7 z4 |: I U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 @+ ]+ x0 F) R! V# B; J
set l (l + 1)' B4 N9 r0 j" u3 w
]
+ F/ e9 c Q. I, aend/ T% z/ S! M+ d9 \0 a) r
U, U) D& ~) b, o3 `
to update-credibility-list
9 d9 O) P% `6 K; ^/ ilet i 0; a, {/ s/ M9 x! x V* V2 u
while[i < people]! y, x$ X) l) h+ N! K1 P: D; U
[' U" l! K, U- O1 f' x: c# M
let j 0
' ]; p5 |3 U0 @5 clet note 07 H2 d$ c$ `# N8 {
let k 0
! a: v/ n6 N3 \0 ]0 A;;计作出过评价的邻居节点的数目
$ p% d( I7 K. Vwhile[j < people]
/ _$ x; S( G9 f2 H[
4 v- x7 C2 k9 {8 m* e, m/ V% kif (item j( [credibility] of turtle (i + 1)) != -1)
9 A4 h2 m8 j: k;;判断是否给本turtle的评价质量做出过评价的节点
) E& y f. J: e, {- s/ K) W* r[set note (note + item j ([credibility]of turtle (i + 1)))
4 M3 \; z; s H) v: p;;*(exp (-(people - 2)))/(people - 2))]
9 S6 G2 z* O u9 C A( ] G; Lset k (k + 1)% D3 G2 n; i) a4 _7 p
]
z/ e2 m9 p6 v3 E+ r9 iset j (j + 1)
3 Q5 G! R+ m, j: E% ^8 l]. }: B$ o# w" F7 D m+ Z3 K4 ?
set note (note *(exp (- (1 / k)))/ k)% e s( V4 H! T0 p/ F; d0 F
set credibility-list (replace-item i credibility-list note)
L) {+ _! h) A+ eset i (i + 1)% Y& \' p: `% v
] ] }9 H: a" Y% D. f4 n e* f( U
end% R4 w& c G+ D/ T
& p) J1 o2 R! _* c
to update-global-reputation-list J* a" r' L+ g
let j 0* u* ?0 B; y4 k# f
while[j < people]& s% [+ q% I( F- g$ ^. f6 K2 n
[
" c9 x6 t2 E- Y2 j* v0 Qlet new 0: |9 F; {/ C q' G$ o& R( g
;;暂存新的一个全局声誉
7 T; y3 Y; c$ o; B# x- p. Glet i 0$ f% u: {' x! q4 D
let sum-money 07 H6 z6 y1 k: j6 y
let credibility-money 06 j8 S9 L5 f* Q. e p: m* x
while [i < people]
* d6 Y# V( B& ^6 Z& u9 ~, J[
" f9 S6 T, @/ c) sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 S) w$ X& s/ N5 _, ]set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- t! G, ^2 Q+ W9 c. q: L9 I! |
set i (i + 1)
1 c, o; S/ u6 [; O]
" T b% @* q! {0 s) llet k 0$ \ w t: d# x! Z5 ^
let new1 0
; t' T- ~4 \8 T/ |$ M( Wwhile [k < people]4 L* n. ^( d, P$ ]/ m, h' ^
[
* D; a* f4 c" l1 J& o6 m. Mset 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): s& K6 z! I, G5 r, |
set k (k + 1); f* N7 L) {6 |+ r6 y
]3 O { `+ _# c
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- n- y3 V$ L4 Q" `set global-reputation-list (replace-item j global-reputation-list new)% R& o. B, h3 {% f( v5 x) a
set j (j + 1)0 M+ v' p4 r4 E* j+ R
]
6 J+ n/ v4 P- A: wend
& h5 H5 }* c; x; m+ }; {' p# {9 c
- h6 F# }& P* A C0 Y* G8 P1 D8 b2 u( g: S: `
1 a1 D9 C3 C- H3 Y% f% l2 ]5 y) j
to get-color. E% t1 T0 ~3 X2 q7 w9 X! ~
+ O% r& o w, I2 G6 [; M. c
set color blue
+ E* d2 l% k/ t+ k4 Aend/ Z& |# s: z2 @. |$ u" I
; ]2 Q- m$ e4 F# a6 M) G' Lto poll-class ?$ c# K5 J( o
end
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to setup-plot1
) [) Y5 U; l/ E* I2 D1 G# u
6 y- c* |$ h- b: Yset-current-plot "Trends-of-Local-reputation"6 ~9 ^* j. j# A% J2 O
0 K4 y( C; F8 p. B3 Z7 P1 o8 cset-plot-x-range 0 xmax
: E: s! A5 Y3 _& l+ k- l* R1 b
5 @& l) D. V6 f: c# N5 e$ l- Cset-plot-y-range 0.0 ymax
2 e$ D5 [1 N% L6 h. K) Hend' a) Y7 U# T! c M
8 F/ i8 F* ?* F# u9 Y. E! m3 ?; [5 ]" q
to setup-plot2' K6 L4 @9 N- B) G" l; B, P) a
J6 s8 v0 h _: J) Yset-current-plot "Trends-of-global-reputation"$ \! I5 K3 n0 p3 Q- O+ J7 E
/ d8 P; t% N1 x% y- Y
set-plot-x-range 0 xmax
3 D+ O( j1 T* s7 t. z2 {. C( L0 {! _8 H% C" p. \4 q
set-plot-y-range 0.0 ymax
7 |% E5 Y5 \& H( ]end
2 X& W" w7 M- @) b
+ I3 l) w# [" o t3 h5 ?to setup-plot3
2 J: s: d7 ~' ` S- H& f9 }/ `) w- @) w2 k( `7 D5 b5 ]! D* V
set-current-plot "Trends-of-credibility"
9 i! ], I9 ^/ M* b3 R: c8 u9 [: k7 N. H+ I- B. S
set-plot-x-range 0 xmax# K1 N& }% }: I0 u) U
) a8 ^4 z' x5 }1 j. o0 K
set-plot-y-range 0.0 ymax
8 Q% y3 Z7 y8 H" i! M. _3 {8 X& |end! R; K. v6 h8 t2 X- r/ [& C9 B1 K
; o) T. G5 X. [, K# gto do-plots. F) Z: q( }- K& c
set-current-plot "Trends-of-Local-reputation"8 @) W/ Q% z- S* O
set-current-plot-pen "Honest service"
& H, d5 d+ x( ?9 c/ `, V/ B( Fend
, s; D7 |. K- E2 [) }3 D) s# Y) _0 u$ m3 Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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