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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+ y# }( D- g: ?' E: F2 M" N: }
globals[+ \" N- N# K2 ^* w0 K1 w, _
xmax0 A! W7 G( z' K' Q4 M6 R$ Q5 W6 F
ymax
2 D% `( H( ?7 i7 d& zglobal-reputation-list
% r b& K' [( j m2 U$ G" t+ k* b; Y, V
;;每一个turtle的全局声誉都存在此LIST中
/ D0 l# O& R7 _+ U, K& Zcredibility-list
& \ l. e' [. y8 a, f5 C0 @: s" h- q;;每一个turtle的评价可信度
' }$ m y9 w( R# Rhonest-service5 `0 Z* ?( C( K0 X. k" A% o
unhonest-service* f* J# e1 I. d4 s
oscillation
% p: e; v/ V( R8 F% f) p9 x. x9 Prand-dynamic1 K0 x4 P7 v& v0 d5 f+ `
]
$ @/ N& G( v) D+ X# _& u
9 q8 A( i; H9 X& Y) ~turtles-own[' Z% M, r: _" b6 B4 S+ ?
trade-record-all+ f# C6 d8 ?( w
;;a list of lists,由trade-record-one组成1 y: |$ Y v) ]" i; E
trade-record-one- V: j9 V+ @) J5 E& O3 w
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* _. [% |' i/ H& {$ v1 \5 U. b
& g+ M( ]+ _1 d; v9 Y# |& {$ G5 ^;;[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 g" ^4 \) N; d8 J. d( w9 f0 W' T
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]$ ]- y0 f5 m1 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list6 D% @3 q# Y, S9 @$ Q8 A+ q" a
neighbor-total
, [5 ]0 j l# a;;记录该turtle的邻居节点的数目
% t; b: z7 X' Q6 rtrade-time
1 M3 g3 d- y( G4 T$ Z7 f, D$ J( u;;当前发生交易的turtle的交易时间
; P+ {& e& [/ \! |0 Fappraise-give* G" q/ k* W& Q! Y, g8 T. p4 g
;;当前发生交易时给出的评价
% r7 u% J3 W j/ |3 {& cappraise-receive
$ p1 B$ ]. [, z( t# o; t9 u' H;;当前发生交易时收到的评价
E9 { w7 h/ {) K0 Zappraise-time
@% b: {6 O% ]8 Z# w;;当前发生交易时的评价时间
0 R- K, } k2 \0 u6 S. L, |local-reputation-now;;此次交易后相对于对方turtle的局部声誉& `4 y2 f- [; U
trade-times-total
# X' O5 i& S4 S J;;与当前turtle的交易总次数
) m1 ?5 N. M5 L" l2 N- B3 ?4 jtrade-money-total
; M! _( p5 o/ q% V0 K) _;;与当前turtle的交易总金额* b. H) k7 m" L7 d& K0 s
local-reputation
- l0 N' k3 S- t& G/ r! C: g5 oglobal-reputation; b; r- J6 M# f/ W0 R& a7 ?/ O4 i
credibility
: b/ p' c. v9 a( R;;评价可信度,每次交易后都需要更新6 P7 e! r* c5 ]; H; U/ C
credibility-all
' [7 s) C4 y+ ]6 U. W" f" v;;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$ x- _) X2 b K( W/ i
D: P& N0 ^. ~% ]
;;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
- J+ \, m4 J" z9 tcredibility-one
+ j# P. \3 \1 p+ _: q;;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
) P1 r3 c1 a* Eglobal-proportion% a: ~( I- N+ ?3 B6 ?
customer
) m2 H- Y/ l, _4 g' s1 Xcustomer-no" |+ M/ h) v: i* Y7 `( Z
trust-ok# k2 c c( i% p( c& ^
trade-record-one-len;;trade-record-one的长度3 m: X/ @) A$ _/ b2 Y& Y
]
" _. F9 ^$ c& @7 Q6 l' y7 n" @& Y% g7 S. B
;;setup procedure
! F+ l4 h3 f5 t% \* k# s( J3 G- I4 f. E" B/ l4 t2 G3 G
to setup
" _3 L" A4 o7 ?) J2 e6 x- I" k3 D( ?. ~( w
ca. L4 v2 K2 X: }, b' h
: S o8 C' `" `# ]* v
initialize-settings
8 C- k- O& i- Y: Z4 [( g8 b" `* ?1 ]2 G
crt people [setup-turtles]4 ]: W I- ?7 M& @/ L
# A9 X" X+ w) P) Vreset-timer1 K9 `( p- X3 d0 X4 u
7 {% E/ @: y3 M" p5 `& C* K5 gpoll-class
/ Q* l. S4 y7 ?- j
1 w: y5 d5 j* o+ x {/ h" ~" Ksetup-plots
; Q6 l# U! r w% B; e9 y# B
- l; ?( i" t/ Sdo-plots
3 U3 `9 I3 e) \( I, }# C' Jend
2 U n U, ^) U6 j2 x7 \7 w5 y: }; z3 A. m$ i
to initialize-settings
; {7 }* I, Y" S6 L& b. ~& H1 k$ z' l' f, K3 {3 _
set global-reputation-list []
( `9 B0 p7 @" @2 Q8 h9 P# }4 ]) E0 f; v1 l) @% {
set credibility-list n-values people [0.5]3 l- f3 d7 I# Z) v# s
( P2 q) j' }# m% ]8 cset honest-service 08 o8 X5 c" L- r S5 y6 I
. b: L F9 _ C) M$ v% _
set unhonest-service 0
/ [ x( c; {- t* G# A9 x, K! _: V0 H- P: ?' c+ }9 F1 |
set oscillation 0% N- e% c3 \/ M4 p: r/ R
0 [6 C) ^ ~$ h5 L/ x3 e" l6 x3 c# T: yset rand-dynamic 0
$ r/ b# `' I# q: u: E" Uend
( x+ L! p' o( P
/ [+ j' O8 R3 kto setup-turtles 8 d- C2 m9 x" @- h- m
set shape "person"- e, B! `# q' i" X
setxy random-xcor random-ycor
" P6 J8 \4 h& t8 eset trade-record-one []
1 f. e2 G" x1 I# X$ U S
" V8 r! n) u- E6 @4 J3 z! uset trade-record-all n-values people [(list (? + 1) 0 0)] 2 c4 R# \# Y# o6 T* R
/ ^5 \) [ j" P& s7 fset trade-record-current []
. E6 y6 @( E) e0 S$ J7 i, y% Wset credibility-receive []
0 R2 J# x5 T& A' \3 ^" gset local-reputation 0.58 Q5 N6 s2 g& p( ]1 x- \2 y5 E4 A& G
set neighbor-total 0
) ] C/ G: z: G# pset trade-times-total 0
$ \/ ~) [ Q: a/ {$ l. I4 `7 w0 Zset trade-money-total 0
4 n* x' |, `! o7 `% qset customer nobody
7 `6 Z' q: h F6 @3 l) A6 lset credibility-all n-values people [creat-credibility]
- N2 z- R0 p/ r/ |set credibility n-values people [-1] a# T# L2 B3 S0 w7 l
get-color6 l8 f% l9 } m
8 n5 b/ z# p# _* b/ Iend4 \# R2 l* |9 B0 r
O+ p& @: K# g1 T0 J9 G+ Dto-report creat-credibility
+ ]' T$ d" U: J4 `report n-values people [0.5]& k9 U Z! B. h+ m
end
1 ^0 b. S# i. L7 K4 } a2 `" |! i( r2 g% I! n4 o
to setup-plots; s* K$ i5 k d9 B. D
9 ]7 n1 ]8 A( w5 {; V
set xmax 30
% a2 ~" h+ o1 i: t
, t) L8 y4 V; Cset ymax 1.01 G1 m) G+ a/ Z' K/ z
+ @1 D& r, W, Hclear-all-plots# j: X& a/ `! {
. a" o" m. Q( x5 D0 v; \setup-plot1
/ q$ r: h/ T N: I J) e5 y$ C5 p: h! n
setup-plot26 K/ w4 i( {3 p: z. {/ C, B
+ B/ x* l4 u5 Q( z4 P/ Fsetup-plot36 Q2 |* g. w- A+ _3 f2 |5 U
end
- Z9 [: X }+ g' L! d$ U/ l6 O4 u6 B* R
;;run time procedures# V0 ?! _4 k: _8 g
" E) k1 m3 R; }. p# N$ ?! Uto go5 J. v- T) [5 }2 q$ e( w3 X
+ m- A1 q" u% V' i, T
ask turtles [do-business]
" \% E: F% f2 a3 aend! v [ [7 K0 y8 Z
2 @4 o. W' g, D Tto do-business 1 S" |+ M1 B) ?' Z+ m# Q
; J5 W1 V" c% Z" r; S
+ F; ^6 A/ h: @) p' grt random 360
. ?4 e! E; l* {1 D& ~2 {6 N0 l# f) z; ] ]5 S2 m* ~- d
fd 1( I+ O8 c3 n7 ?- y! Q4 Y' ?8 n
" T% _/ S8 ^2 M% y" R, L; N1 b
ifelse(other turtles-here != nobody)[( [0 W1 b# x, N9 t' s8 N
7 u" E! }$ T- b \! Pset customer one-of other turtles-here
9 h/ w1 Q2 f3 J2 K: ^0 Q ?$ v! t4 h5 |5 @0 @
;; set [customer] of customer myself! G8 u% A2 m0 J6 H) d8 v- h! z
: u8 z* B% ]1 @1 z( n/ K
set [trade-record-one] of self item (([who] of customer) - 1)! A3 |$ K3 p$ V, d6 c
[trade-record-all]of self0 E! J5 }* `) Z" ~% n6 D8 P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: ]' A/ C! E: h. _' \8 j: F0 D) @- Z! F
set [trade-record-one] of customer item (([who] of self) - 1)! U9 @) E e7 h3 E* l+ H
[trade-record-all]of customer
2 Q1 g) v, E" s0 T1 I. H5 T( \, L9 K( `2 [# C2 ~, r( b
set [trade-record-one-len] of self length [trade-record-one] of self' r# B6 X' }9 y: Z0 g! \ g3 }6 ~
' V( M7 Y* U0 r0 d+ a, G
set trade-record-current( list (timer) (random money-upper-limit))
% N/ c) v7 b$ i+ \
& O3 Q+ p: l" y5 Aask self [do-trust]# D U! ?5 k$ }$ @8 B
;;先求i对j的信任度; k _' g# c+ ?" J
$ R/ m+ r4 f6 Y) t9 I F7 v8 qif ([trust-ok] of self)
9 C+ n- K6 c5 |9 a5 l;;根据i对j的信任度来决定是否与j进行交易[( _4 B9 T' h- a8 n
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ Y" N0 v: S0 _2 S+ [. B# d X7 L
2 @! }! J; E; k1 B[
: r, P% G$ I/ D* J) F6 T0 X: D) ]3 h
do-trade
# P! m: t. ?, q; n2 d9 s( k* L5 K; T4 h2 U; s) i, G! f7 A+ Z
update-credibility-ijl
3 [5 {' H( }+ r$ {
" V% C2 Q! J% _& \( wupdate-credibility-list$ x. \, I2 m$ K2 z$ a: @
, T* ^/ ?) b) w9 n z2 P* c& H9 l
3 A# J/ ]* ^+ W0 }3 g3 x& T" U% Nupdate-global-reputation-list
& ~5 x$ p4 k0 J1 p) |' T, j9 s) [" ?3 ]. `
poll-class8 @3 W; \4 |% {: i# H* R
1 D4 t5 P% B" j3 b4 O7 G( |
get-color4 M- L K/ I1 q3 d1 X5 N
4 Y4 K: I [0 A7 f- m4 F4 n% d]]! `- K) s A, c% @; N3 Y
8 }! F- n" f2 P; {
;;如果所得的信任度满足条件,则进行交易* v9 ?+ r; c p% `* G
- k5 n: N0 \+ u% t[( P! @* h$ z& _7 r8 j
( ?# e7 g$ l& I( `. [+ T
rt random 360$ t* d2 t8 F4 _7 T# s
" D; D- A( J) o# Q% g, H" d1 x( qfd 1" O% P/ P* x2 J# Z
' i% B$ @6 D' l]
) ]2 s% i# [5 Q* {9 d) `( V; j* T) D, G) j9 X- m, I
end
+ Y1 O; e4 ~8 N
! r, r$ p+ j8 L2 k- e2 M4 Y* }to do-trust ( V/ v4 t; X+ ~& [, E6 N. ^
set trust-ok False
' I& m: g, [# x: U9 w- S* |3 ?* S( k
' x3 c& a& U( {4 d p5 T
let max-trade-times 04 j9 J0 C0 {% H3 S# h5 q) g
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' |" a! X2 ~/ a* \1 N: ?let max-trade-money 0
8 r6 @7 A+ T3 H! Xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, H g& {! u! Q- W* `* P# mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) y! l+ o( a( B5 I) E
. e3 k* Y9 V6 X$ T$ \: P B
/ F) m W$ `. J" Sget-global-proportion. [0 k1 c0 j/ P) e
let trust-value, l4 X/ g9 @4 Y- Q
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)
" K3 d* s: K. N# Eif(trust-value > trade-trust-value)
) t! G" h# L4 K! D- W) c0 [. G[set trust-ok true]$ m0 p4 B' @, D h2 _+ ?# K4 ?
end. I2 ? O: C3 ?/ x4 X& k
: D4 F6 [# [1 C+ g( a8 {3 m1 w; i; p
to get-global-proportion6 B9 p; [) g5 |' T
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# G, v M% x- n. T" F
[set global-proportion 0]
$ J4 a6 s/ u( \& q[let i 0) R: X& L; X" l0 Z" X" V% S
let sum-money 0
2 o8 K' G- w, c0 J8 d: Zwhile[ i < people]
E# r; P1 v, m6 R2 R4 B+ j8 h0 v[
5 Q# l) ~! _# T7 Qif( length (item i. _0 s/ {/ X8 w" M9 q
[trade-record-all] of customer) > 3 )
% k9 u8 [( e4 J! W4 ]2 S[
: Y, [1 Q' l" T: }2 Eset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): E5 @0 c" P2 D2 c! |; n5 p; R
]
" m* i6 c' j# K c' ]! B! Q]. Z8 t; _/ F' h: X" i5 j* }
let j 07 P# m, L( H! F
let note 0# ?/ }& o5 `$ u/ q |
while[ j < people]
2 D9 D/ M6 p3 c, d9 Q% t/ P[
6 {' |" |3 y _+ k" I2 Q9 Y! t5 Eif( length (item i% h% o+ H# E* P+ L$ S4 O& ~
[trade-record-all] of customer) > 3 )
* f4 M9 R& J: X2 J. j$ r9 y[
O- _. ?& X- Y, C3 c g0 yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. g% ? U: P& p4 X( ]. a% Q$ Z$ n[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' q/ F [: o6 ?# d4 C' B
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 w3 z. b/ ]; }* ]2 K
]- A8 N; s) f0 o% c
]
$ T: a5 t8 H$ r( V( x- B9 Eset global-proportion note
. T9 N7 I9 `0 L ~/ J4 o9 P]7 x8 G: |; i, }6 ~) X0 k/ D( |
end
; k2 z- g: a/ R
7 H) n* e( A1 E; }# b9 gto do-trade
% F; e; M% {, l9 R* G0 F;;这个过程实际上是给双方作出评价的过程* R3 f" h7 U" s1 `4 |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& k; b k, S1 r' A2 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; F; c/ o/ h1 z# r' |set trade-record-current lput(timer) trade-record-current# n% a, G9 z# W6 j! }
;;评价时间2 J$ W2 m" y9 q; i1 N; N3 C
ask myself [
1 d: C* }7 o$ U" gupdate-local-reputation4 Z$ H- H: R6 k, ~" l0 i6 V
set trade-record-current lput([local-reputation] of myself) trade-record-current
3 q0 R8 ?4 l. U0 O! E]4 \2 x+ A& {; U) q& _
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 |0 G$ ]+ B& J;;将此次交易的记录加入到trade-record-one中# a o6 \4 J( y3 d: p) m# g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 B4 L. V9 H1 X" ]6 dlet note (item 2 trade-record-current )3 Z. x# W6 b9 i5 F4 j3 {+ q) }
set trade-record-current3 I8 B+ H; K+ j
(replace-item 2 trade-record-current (item 3 trade-record-current))( `! J! Q0 K3 ~8 h Q- O/ d# g% l
set trade-record-current
3 [, t- E3 O4 A1 E/ a5 k(replace-item 3 trade-record-current note)1 f. F( p! A6 e& A
0 H; A: _6 n! s# R, A6 ]
( ]9 l. K* \% z9 u3 A& bask customer [) j+ b3 G' W2 L( P5 u4 ]9 D# O3 X x, G$ _
update-local-reputation- W; H7 n- Z e H5 | a
set trade-record-current
" P3 s. l' K. v(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 Q) [; l7 }* V]+ @8 j/ f+ ~8 F
: |1 H3 e* v4 v
% k) O! Y" J+ U! E7 wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 p. p+ a1 e/ t+ _6 N ^6 M$ l
- R7 ] d) V; G m! O! D; [+ Z1 E9 sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 s1 f! m! {4 o- q+ m6 N* [) c( X# h;;将此次交易的记录加入到customer的trade-record-all中) r/ p/ D4 g# Q0 b4 o
end: D4 g5 W& E1 d; L" j
$ R# V, e( b. ^# qto update-local-reputation
; r& U8 Y% q/ X. t7 L$ z/ Pset [trade-record-one-len] of myself length [trade-record-one] of myself' a' h, a2 U9 T s" e% ~
/ e) t* N. U& H8 n6 a
& V5 I( q% E1 V' ?! Y;;if [trade-record-one-len] of myself > 3
P: e! F* j% uupdate-neighbor-total
+ c' R b+ N. X( _: d& O! v;;更新邻居节点的数目,在此进行$ P! _, \! }+ l4 n& b0 ]
let i 3
% n0 H q* V( v9 L& alet sum-time 0( e' o7 i1 o$ n5 |* n
while[i < [trade-record-one-len] of myself]! b4 e- v6 Q% c6 z; i! s, t6 U
[4 T/ @5 Z2 F& ` w$ f' S. j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* B, z" s& c" oset i
- j. Z- n# ~# A( i + 1): Y9 P3 |6 {+ V6 Z' v* B. R
]
( N5 E9 a/ `' `let j 3
0 ~5 B$ u/ G6 p1 W' Z1 Mlet sum-money 0
& t7 _8 Z V- q$ twhile[j < [trade-record-one-len] of myself]) L: {! U" i, u9 S, w5 \$ M
[! U9 \4 \# r+ L% z
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)6 u/ p8 V& ~; Y' A) s
set j
: W4 W i l7 O$ b2 Q+ U. D- v, F( j + 1)
9 H# O0 w$ S% u9 C]4 ^# \ P5 k, r: p6 b t, p$ ^/ p
let k 3
, g2 B( z) A0 k8 H3 Zlet power 0
2 @( l! A/ X, S& wlet local 0 \# s$ @0 E1 Q% D+ y
while [k <[trade-record-one-len] of myself]
$ H* I$ ]! h: H+ O[( W# J! d- |, W
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) 7 l1 _$ o/ `! X/ h, u* ~$ W% h
set k (k + 1)
) X4 i; L, h& [2 l, P6 U5 a# S]# k5 O) u7 m3 c
set [local-reputation] of myself (local)1 O( G# H0 r# L. ]
end2 T$ W1 \. S- Q' Y1 |
9 p0 H$ I; ~# h$ U8 f, M6 Gto update-neighbor-total" u/ o/ v- ~& `, c6 D# f1 \& n
& a6 i3 _1 x8 l0 K* lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" _( ]4 `2 ]; n3 T, W) q! |
L5 g V$ g% i! l6 w1 p6 h9 r& a' _# `
: F$ x! n+ p f6 p0 ]! Tend. A g1 U$ Z4 u$ V0 ?# U
3 C8 ~+ @/ s2 W1 Dto update-credibility-ijl
; ], j( K3 K/ |4 q3 f/ h8 X6 ?+ i6 P# r8 G/ L
;;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。
* a% { W2 ~" P4 q; o/ ?, r xlet l 0
/ |, b' z' o' z1 k* l* [4 A& Nwhile[ l < people ]3 P7 E; i. O7 X+ u2 y- w
;;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 O- e% X5 P/ v; @" Z7 A# a[
3 A$ V T3 ]/ C. w& g& qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 N& T( v; e4 t T
if (trade-record-one-j-l-len > 3)
* Y: Y4 o4 |9 A[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
9 }8 M& l9 k& g" v" H- Ilet i 3
( A/ R9 M$ f$ q7 U. ^let sum-time 0
1 w* s+ h( ^! W/ |- [) swhile[i < trade-record-one-len]
& ?( `& `% w4 t) l1 g7 a[: R H+ L( I: R& Q4 m2 H8 j0 V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 J/ b8 Q9 P9 b. V
set i
& W* V4 J* w2 C! o) n- G( i + 1)4 r$ \/ \; z" J1 q+ o5 R& V' A
]
' e. }3 |9 k& y; p, E, q" o8 vlet credibility-i-j-l 0; B* m, ?9 p+ ~/ b( `
;;i评价(j对jl的评价); z6 X) [& m x r/ Q
let j 33 X6 w" ?6 o6 M& m
let k 4
# C6 ~6 M& K0 O# y* Q& F! ^+ @while[j < trade-record-one-len]
. G! Y; q& p4 `1 C1 ]; w[
4 d$ J, z1 B' Y' C# t* }5 u# wwhile [((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
% g6 s4 q2 a' Rset 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- D+ N( A6 o$ l/ x( Q8 dset j1 J- G0 | q8 o) w
( j + 1)
1 s1 k1 W' b( u]
) ~) K& g D# I( ]% t% |8 F7 Pset [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 ))9 R6 b- _* ]. U4 u' k9 W
; ]) v4 |# n% P8 Y6 u$ z( K+ A' o0 Y2 F
* _0 o7 Y. L0 _, d( P. M; x$ Vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# u6 p* B4 x6 Q$ x;;及时更新i对l的评价质量的评价5 M n0 q. T; ^+ k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% O$ o% }+ z% b" f$ @8 j; x% fset l (l + 1)3 \" e2 F0 u; n4 |- {8 W$ M' f
]0 `2 Y: D$ H% q3 X
end
1 }$ @6 J$ g2 X3 r6 }/ y7 |' g( }) _
to update-credibility-list/ N: s: E* p- z3 b |, y9 O9 g5 l
let i 0
7 u6 ]; L4 g h7 Y swhile[i < people]
& L1 b2 q7 ^. S) S: Q[
; D4 j. v! m' D+ Klet j 07 S: d7 b0 o c$ @8 F2 ^
let note 0
; b' ~9 U3 e) _" qlet k 0# W9 s. s% {+ d' {- b( g1 `
;;计作出过评价的邻居节点的数目
, w9 l: J8 s, z1 T9 T- Rwhile[j < people]9 A$ `6 Q6 m5 {* f" _7 k8 W: }
[
. k4 S9 S% z; I/ D" nif (item j( [credibility] of turtle (i + 1)) != -1)
+ L/ d0 b1 U/ H; R;;判断是否给本turtle的评价质量做出过评价的节点0 @5 |! S' q+ c2 r- q2 ], C
[set note (note + item j ([credibility]of turtle (i + 1)))
~5 {: b0 A5 `0 N6 j% G;;*(exp (-(people - 2)))/(people - 2))]& f3 Z$ X3 M- `2 Y* I" l/ ?- p
set k (k + 1). ^: G$ `! \7 h! }" m( x/ t w
]
+ l$ J- @9 j$ l, j+ A6 G% g$ mset j (j + 1)
I6 f% @) W. i, C]/ V% W9 L- a% O' w( i
set note (note *(exp (- (1 / k)))/ k)
9 Y: L3 f- i5 \7 U+ n' D2 aset credibility-list (replace-item i credibility-list note), H; T9 J8 s4 m/ U* W) b
set i (i + 1)- \" j; z. q5 Z Y* z
]
8 t3 ^8 v! n' `' Aend
) I2 A$ ]7 x% w: v" n' l
7 P# R/ t# k9 R% q" p; m0 }to update-global-reputation-list3 r: M2 t! j6 }/ V
let j 0
2 x% \6 ?+ M/ Z% P; awhile[j < people]
/ y+ S, w/ y8 o5 L& X, Y[" _2 A3 ^# j% H, N" B
let new 0
8 Y5 s: q, [$ d% m, ~% Y7 e, u;;暂存新的一个全局声誉
7 b% r) B0 }1 _5 U! j, I& z1 |let i 0
7 ^- u7 Y1 Y5 w& Blet sum-money 0* t o+ Q" }! s
let credibility-money 0% p6 L) ~6 V2 I4 Y1 b
while [i < people]' `8 ^' D# L; e1 O
[
! \/ H5 v3 w' yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! M& K- q9 s* l' dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 D1 K4 M) P+ ~3 p3 \9 F% p* ?set i (i + 1)" Y+ L8 x1 ~5 y. k7 Y
]
: V/ u L! x" E% slet k 0
1 |% d2 r( T& P8 V3 T1 tlet new1 0! \2 |1 ^& x/ m
while [k < people]
5 B2 G2 O7 n; S7 g$ z5 s0 r[
9 `" ]% M+ o% \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)" _& d$ b4 R4 W8 ^# P A `
set k (k + 1)
5 H% _2 o, |* R$ E+ P5 q]% M( A9 ^: Y3 e& V" `1 E
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 G" m4 R6 M: d# j4 lset global-reputation-list (replace-item j global-reputation-list new)% L8 u7 k( s3 z! G# j* p
set j (j + 1)
3 M5 e: @0 c2 ^& C9 V. h& W& |; {]& r* [ x# W; h
end3 Q. h3 W, T& \; w' W6 e4 P
W7 ^' T- P# @5 c3 B$ N7 A6 y% a( k4 {. }
6 \& P2 G$ Z9 ?# V2 ~; l7 qto get-color/ x* c' y. n2 V {* n
* [9 ~$ h( [" N
set color blue
2 y& b m. E9 Z/ ~end
, T d. {- F0 {' p
" @. D$ b ] ito poll-class
: |. O+ J4 D/ l7 L: Z- G, J v1 zend& j6 w# K# o# F3 @( C
+ _1 z+ M3 ^! I$ @) a. ?1 {
to setup-plot1' u# f" ^0 ]. l; p7 Z
4 `( x4 X$ j* v. w' t& @
set-current-plot "Trends-of-Local-reputation"
( X/ z' e( {, Y7 \4 {8 Q C7 ^! V. R! N) a2 g& s2 J
set-plot-x-range 0 xmax. n, C8 g" V0 O; L1 f
# A+ ?2 S7 K; O% F( D9 ^3 Lset-plot-y-range 0.0 ymax
3 f$ T8 o, r2 i& iend
! w }+ q2 V3 g. i) E6 ^( J5 E9 j) s2 m0 `& i7 B5 p. ]8 R: Z! d" z
to setup-plot2
3 N9 u3 M7 M8 e1 s5 d4 }! J) k5 I) z3 C- _& |0 I3 Q: W" N
set-current-plot "Trends-of-global-reputation"
4 c3 v2 z5 H1 U) y9 H6 p1 l U9 e$ ^ Q. n2 W9 s3 G1 K7 \
set-plot-x-range 0 xmax
0 n1 @" i3 N4 \6 h4 H- }
0 _/ X0 `# `( O& R; tset-plot-y-range 0.0 ymax- |2 a$ M& o0 R6 T# ~
end
; f, l' d! s& h! D
) ?# y% Z" Q7 |# Z4 cto setup-plot3; c8 F2 u. T6 m% Q0 S- _
" `: L- |3 c! {& n+ v8 ]9 Mset-current-plot "Trends-of-credibility") r& W8 o# e: r3 D
* ~0 g9 Y' p8 y1 t' ^+ A9 eset-plot-x-range 0 xmax2 C9 i5 P# Q2 f. B4 o+ l! O+ i
7 v( ]1 b4 l% n3 k. B$ y$ U4 h5 d+ Iset-plot-y-range 0.0 ymax
! H, q& L: ]/ \: Q. o9 m4 X$ X- Vend
* t6 C& E! F( ^5 d5 C/ b/ F/ K6 t9 M
to do-plots; w ]' B2 z t
set-current-plot "Trends-of-Local-reputation"3 j2 E& Z, E G. t* ` w( p% t3 B1 Q
set-current-plot-pen "Honest service"
% F( T: |9 z! V) N( c3 ^3 Hend& }% d! D2 i4 B' s' C
5 v& n+ M$ f- o0 } Q7 X4 ~4 v; m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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