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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$ t( S0 ?1 H, i* w) t* q' W
globals[
5 @& Q' V% }# R' c9 p' Lxmax
, n/ {( I8 K& M) D K+ tymax
1 w2 W3 Q/ z$ j* J `' sglobal-reputation-list
! w6 e- P+ \6 E6 k# A& D7 D' ^: n7 ]8 `0 i
;;每一个turtle的全局声誉都存在此LIST中
4 \9 n0 f+ v3 d0 Rcredibility-list
9 d* i, Z! q0 [8 M;;每一个turtle的评价可信度- y5 ~9 |- p) g: f
honest-service
# G- c! |- z/ s$ V, wunhonest-service
X+ a2 [6 H7 L1 ^0 Foscillation
8 h0 `' ^( C1 K+ B# z, nrand-dynamic* n! T2 f3 f: X& p, T3 {! V
]
5 I1 ]! U: X, w7 b
2 ~7 s/ h1 x4 |' }+ hturtles-own[
" P! W7 P, D% \& f! d3 Ltrade-record-all( s, j; D4 z% H' X$ W
;;a list of lists,由trade-record-one组成
7 j+ T/ t5 z5 W6 |: L% I/ h- Ytrade-record-one# H: B6 \2 p" k& {6 `7 F6 ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
5 N" o* o! R# |) E4 l x; Z/ ~; I. U9 ]& Z Y, E
;;[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]]7 X$ A, h0 F7 L' b0 _
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]
# R P& ^2 o7 Ecredibility-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
4 ~/ z* b2 d2 V0 V. X; c0 J6 Xneighbor-total
# G% o1 o! F* V0 T n;;记录该turtle的邻居节点的数目! O0 D' A: V! p! [
trade-time& F9 b/ f4 l5 j6 H% B- E! p) Y
;;当前发生交易的turtle的交易时间1 f) @+ L- K1 j5 y( S6 H
appraise-give
3 k* M W3 N! [! ~+ @;;当前发生交易时给出的评价/ g% `" g& c, k
appraise-receive. N$ ^9 e, a/ n
;;当前发生交易时收到的评价% g2 ?, u& @1 W0 v! o* q+ t
appraise-time D8 L; i2 O) P! d9 b; D: K: S' k% \
;;当前发生交易时的评价时间1 ^8 p2 w# l% t
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 R% R" b: Q8 Y6 P. _1 X5 ytrade-times-total
9 O5 T& v# l2 C' c;;与当前turtle的交易总次数+ l) `7 W) h; r1 J( S* O. r( d# l
trade-money-total
/ r0 P7 f+ ~$ b. f. Z) D;;与当前turtle的交易总金额
" b v1 k( c8 S- E, d1 ]+ mlocal-reputation9 x( Q, L' U" ~; \
global-reputation
m/ E/ w: H+ [1 u' \credibility
. K! f) i5 S0 a0 S4 v$ o) I;;评价可信度,每次交易后都需要更新 ?3 z& t3 ^4 O
credibility-all$ ~$ m/ `; S7 y2 a% D
;;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( b. z: ^- V, e+ r v
. [& U* t; a: ~! l! s
;;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0.58 w: A: J" g. ~/ O' f
credibility-one
: s1 G9 w$ \5 g0 r3 r; W* i! m;;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
' {1 v- C6 x& s3 ^" G4 u# I) a9 cglobal-proportion
6 g% ]3 Z) ~3 B' { Z" Ocustomer
0 y( R* X7 y6 pcustomer-no
3 s% |2 q$ L3 \" Xtrust-ok
$ f7 o6 s7 T9 N6 etrade-record-one-len;;trade-record-one的长度
! Y8 J* K5 u# R0 w]: J0 M- @7 X- r+ C
; j# |4 O3 I# v0 R. [
;;setup procedure$ q+ A3 _ \9 E- c6 w
% W' a! @% [3 V" jto setup
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ca
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, [) f% F* e) a U& p+ N# xinitialize-settings6 C) B5 b& f$ C, }
1 a' I+ r R( u( g& c8 R) ~crt people [setup-turtles]% @5 Q$ z$ N7 s" D; L- Q: j N" }6 h
0 K' b2 @0 c! Q( a7 @, Rreset-timer
) l( Q+ Q5 @/ J% F+ @
4 c' k' P( m7 G3 w. K' W$ {/ Ppoll-class
* h/ q, u3 i$ Y( X0 S! ?- C1 f8 i; P* V2 \* W5 r ?- |
setup-plots/ N" v2 I; x% t( I9 \
. k6 n% Y; z3 `; R' f
do-plots
! M" @8 T: h4 _6 {end4 I5 g* R+ p* V$ m; x& \5 r7 i* X
+ [# q0 q' V9 _/ J, p: Gto initialize-settings- l, L& O5 p: B4 H8 }: b
( v, ?+ U5 e' u) V7 rset global-reputation-list []& ^' Q* \, _9 k7 J
a& p3 I7 ]# S) l k0 X
set credibility-list n-values people [0.5]1 Q' H( A" e6 g% ~+ E7 D* T
: X& P# }: a2 v1 d1 \' W) Rset honest-service 0( G# C2 A* u/ l, O7 S* Z: G
! V+ J9 Z$ v# x8 @' uset unhonest-service 0* a* z/ `$ D1 A' O0 J3 n$ F
4 _. ^1 l8 P1 c1 Q5 Fset oscillation 0+ C& T( e% l& t3 k5 k' W, a
1 o. v4 s8 g# K6 m
set rand-dynamic 0% O! `8 y! A+ e
end
+ _2 X1 j1 u5 W4 A% F% T; U. ~& }2 V
4 H& P! D: Q7 A+ U' ato setup-turtles
3 i V! x7 G! Tset shape "person": z1 g. I& J! `8 v: t; N
setxy random-xcor random-ycor
0 E+ Z+ ?' d4 b* a, M7 eset trade-record-one []8 q8 Q ]1 _8 z! q( I( K' n
1 x# v9 Y* ], U
set trade-record-all n-values people [(list (? + 1) 0 0)] ' }2 M; b8 |# V, H
# Z* m9 W4 j. W' w3 W0 `
set trade-record-current []
6 N" ^0 l6 U" x4 R: J+ Vset credibility-receive []* ~3 X6 C0 U* `" P; ~
set local-reputation 0.5
* D8 U g, n4 T6 C r( v9 Qset neighbor-total 0
% r: l v5 ^, O/ Bset trade-times-total 0" P) b0 q* C# g1 E* s4 X) X% o, A% Y
set trade-money-total 02 T+ _& K4 u3 q# K
set customer nobody
4 h1 X) b+ k. T9 C" @set credibility-all n-values people [creat-credibility]
' X" \6 r, D& L9 T+ h$ S6 wset credibility n-values people [-1]
. q! M ^- N% ]/ _2 k6 cget-color: n0 R# P: z5 N# f( G6 V
3 \' C7 R- t; O+ c. n3 ?
end# B. W; T% D$ D& ^# A
6 Y2 Q) m2 U: vto-report creat-credibility% A1 |' {5 x* J( G R
report n-values people [0.5]
! x e. z1 J% ?! Q$ k% z! L) qend5 R6 e' c# x: i- B
; D& @. [. [' S: Qto setup-plots
0 ^* j; q, Y) B/ Q' y' z" f: r" `* o& I7 q9 N( V, d: m7 o
set xmax 30
- C1 f( k* s# b% O, v4 u: l1 {
: k# A! K1 I3 K. v& m; J: Kset ymax 1.0
/ g9 J1 f/ C) @) V9 ]* w# D* h, ~4 j0 j V. `
clear-all-plots
: y7 F6 d( g9 R! r( X+ t8 m8 G
5 i" R: ?% n2 rsetup-plot11 w; b5 p2 h2 p. O+ J
4 e( w1 l" a$ }# }( K9 L: \+ xsetup-plot2
8 R6 J: A6 X- ~; k% [1 X% Z& D
9 c9 N$ i: O3 dsetup-plot3
, O, a$ I5 ~/ v+ V# ?end
3 V+ v7 `, h5 R- z+ d! d
7 o1 j' f, R' k;;run time procedures8 ?1 {6 B; G4 i6 q
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to go ^5 i1 _1 ]8 ]- s8 R
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ask turtles [do-business]
) w" q8 W' u8 k& @! C4 p6 w( aend
* s3 b4 L% x( z& U2 Q! _8 l3 f' m+ @9 i9 Y- B/ D
to do-business
) f& l! M8 f _* {: A! Y2 k3 f' F+ ?$ m- S' a- E' l0 k
5 B' l+ |0 o% {8 k; `3 }rt random 360; f9 V5 S: [4 R* I1 \( k5 ]
5 R3 \6 ? M4 c3 z0 i1 D1 V1 L
fd 1, w& ~" Q. p/ \. }) G" x1 W' d
7 m+ I: }) ] u# Z5 o
ifelse(other turtles-here != nobody)[% X. v1 g8 y- I+ B4 O, s
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set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1): H7 s3 N9 d/ u# [
[trade-record-all]of self
5 ], R4 _, x0 K/ n5 G, b& \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% R1 q4 \+ {! U' i- d+ H! ]9 g; t3 q# D& ^ _; V- x3 v2 Q
set [trade-record-one] of customer item (([who] of self) - 1)/ I1 L+ p" h# k7 w
[trade-record-all]of customer
- L# g0 r8 d7 E. W6 O& C2 b' `" U0 U9 }: i9 ^: y' P3 @
set [trade-record-one-len] of self length [trade-record-one] of self
5 {% Z2 U/ R8 c' ]9 y6 D7 ]7 P/ f% ?0 I" X, _3 l
set trade-record-current( list (timer) (random money-upper-limit))
2 G+ e- k0 G. A3 k
0 Q5 e6 L2 _9 I$ ^& a, U$ cask self [do-trust]
2 C8 ~ X; B- T3 ]" S;;先求i对j的信任度
; _; S, ^+ P2 j+ h8 B5 J# c/ ?9 d$ M
if ([trust-ok] of self)
( {! ]+ t- T: a8 C* O* t;;根据i对j的信任度来决定是否与j进行交易[5 J: _* ^7 v$ ]: g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[1 [% T; D$ M% F# \; {$ f
( x ~! X; b3 a! `: E* j. o5 V0 `do-trade
8 S4 s! b& Y, j4 F3 }* L" a; B
; W3 y) C) H) y4 Q- D/ _3 [+ Tupdate-credibility-ijl
) v: M( I' L4 r$ I* v8 u
) | i) _5 a; ~6 \6 ?update-credibility-list
9 N; g- a! b- ?/ p: u U2 v0 v* S
5 L; F# C* x! a5 W
- u' \, N6 x9 B, i3 |update-global-reputation-list* J: y! p: S* Y/ b5 u* I
* Q S; x/ T- i% \7 t9 xpoll-class
0 |$ f- F; G% R# t8 `1 c/ _! D4 u5 m# _% m) D, F
get-color5 L0 @" F1 s x! g0 ?0 c
9 j6 f2 q- }: [; ~* N% D
]]3 {6 \% W ~# m
! C* y; v; ]5 m;;如果所得的信任度满足条件,则进行交易3 o; [1 M, R2 p6 A3 o$ X& ] G8 ]
8 ?4 R E+ `( A3 t$ d6 c. T2 z) ~[: y! I5 l( h% u- [/ t
! E/ p9 n; j9 q4 H ~rt random 360
6 R* f% z9 p: ^; m9 c' w3 M# u5 f' R
fd 1
, ^ P8 Q, U8 V! N' a4 m: Y
7 h8 \4 v# j1 }' Z]
0 M6 P0 J' q3 q, ]/ w7 M
" m0 B' P2 \- f" f- Lend8 H7 C+ K; w& B1 W& y" ?7 ?$ \4 \, e
, R2 K! q( a' Z% y9 \to do-trust
5 n, g' e$ G( u" zset trust-ok False
' _8 j% L8 c& H
. l( U- F3 A. c1 e. v- ]( j
5 U5 O* r, |# Y/ N; Xlet max-trade-times 0
& V5 }0 q$ w, @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. n3 w' B) O* E K- D+ z9 X8 `let max-trade-money 0
7 D! l' g7 a' D9 B+ Mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 {* O* L$ }, ^; E6 b% h
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 R1 Z% L) Z- T J2 S' e5 q
5 n3 I. f0 D; |& ?! S$ H, u) W5 Q0 c8 [: a+ A; ?: s( o
get-global-proportion2 Z5 _0 }) J0 W: L- _% h
let trust-value9 R% M2 K/ s" H: t
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)) {! O( D6 i) r- L
if(trust-value > trade-trust-value)
# K/ R: I3 `! r4 c% l[set trust-ok true]
2 _2 I2 ~+ N2 |( Cend# T. W8 }5 r* @ t- h, h
7 n& G6 Y2 K9 W4 i* h* s1 ~
to get-global-proportion
$ I, @( Q, U# P9 |5 [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 @& ~/ H/ z7 a" I
[set global-proportion 0]' j. c0 E! w) C; m+ F1 K. Y
[let i 0
0 |# B9 G0 u8 [let sum-money 0
: T4 I& T4 p. c# Y1 Kwhile[ i < people]
( x% m0 }( S! ] [[
0 }& ?- _; z" O0 P2 qif( length (item i: R4 I7 J7 O. F8 {% C( ]8 o1 l
[trade-record-all] of customer) > 3 )
' R; b/ P) I% V% o0 A* }7 i[# m) i$ y( y+ N/ [
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, r( n" V# W' l4 N: C2 d]
, H% w0 P) f+ |$ k l- n: J& }6 m9 G/ L]7 e( r* m G* X7 T- d
let j 0
' ?: h( l8 M) y2 d; H2 ylet note 0
- x% r" ?' S l* i) |) Kwhile[ j < people]& n' f( a/ D+ E- M9 ], U
[- S! ^0 H- r( o" F4 R# H
if( length (item i: n# l; v0 t+ n
[trade-record-all] of customer) > 3 )$ ^0 S2 Q! R5 U# q
[; j z; O U4 @! g" T0 k7 v
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 D9 s% ~2 [3 V. |. q/ J d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 s- ]8 i5 P6 I% k
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# o# [1 V4 Y. b) p. T* A' m
]
( {4 k* C8 V1 z]# Z, J( m) ?- b9 @4 H, r; S1 U
set global-proportion note+ z( A7 C/ ?7 I: p! H/ G: H
]* H7 E* Z. |/ @- i* ^3 n
end, l# s3 t6 m4 \( v4 n" Z4 i
9 g/ d5 M* Y; n
to do-trade
6 w0 @5 f& M" a z" v;;这个过程实际上是给双方作出评价的过程
; D9 Z6 N3 J- a5 F/ ~% P& F$ Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. E& A( y, r9 t* u' j b2 r9 @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 `7 j) a# g; d* Xset trade-record-current lput(timer) trade-record-current
% E3 G5 x, |- t0 _! W;;评价时间
+ }1 C+ h) M1 ?6 N* Hask myself [
+ I8 h0 b; ]. Zupdate-local-reputation# K4 p' y5 P! u
set trade-record-current lput([local-reputation] of myself) trade-record-current4 U/ G% [& D# B" z' `2 t
]
/ |1 p* N% ~& z3 `7 N5 o8 |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: ?( c1 r6 a# u- L* x5 };;将此次交易的记录加入到trade-record-one中
+ n0 v) t ^: ]4 Lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- x) D2 {8 O9 f; s: d7 @7 llet note (item 2 trade-record-current )" o e: O6 x8 n: @5 u X
set trade-record-current
, [2 f" V$ B* X* a: ~+ [, a(replace-item 2 trade-record-current (item 3 trade-record-current))
) C+ p2 [7 @! Sset trade-record-current
( e1 J: K+ Q- |' B+ l f6 _(replace-item 3 trade-record-current note)
. x7 O: W# w$ \1 ]% |# z$ }& R5 |: W( t) v* s9 }; ]" C
- j: n; V q$ h3 o" L) c
ask customer [
3 K, Y" u/ Z- B0 kupdate-local-reputation
6 E h" k) n. e, kset trade-record-current
/ i7 M6 Z1 {6 |7 D3 j1 E(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " @8 w5 d" q' T0 D4 G
]0 P' O% w) r1 ^3 T* _
' K% i( Y L. X: v1 @
, y$ x, z8 P' N1 D4 n
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 g0 M6 ^! W0 X2 L
3 l+ `7 e9 }4 C6 V: |. Cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* s1 ~3 u$ Q8 ~- @8 }4 z;;将此次交易的记录加入到customer的trade-record-all中
4 c) q( ]& y; w |% r- k( U9 N4 fend
0 x; `* K' J0 |7 s
& J7 N3 m5 g9 E, V4 @* `to update-local-reputation
6 F! t2 I- ?/ y1 x, w- ?& ~set [trade-record-one-len] of myself length [trade-record-one] of myself
3 [& @9 y9 {) J1 I$ E+ S# L) g
9 d( o# D: W9 z1 {7 Y- H, }
8 R' d1 ]) A2 l( }& X( P;;if [trade-record-one-len] of myself > 3 1 ]( |9 @- S0 ?- [0 n$ T# W
update-neighbor-total
9 b9 Y# j% | e: r7 @9 l! T;;更新邻居节点的数目,在此进行2 ~5 b7 J7 Z; m
let i 3; {. V" g' j2 Q* v
let sum-time 0
6 {# s+ b: |. Nwhile[i < [trade-record-one-len] of myself]
, q _& f& D9 b1 B8 w[
! T0 ]; Y, F D' V, g% sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 s% v; U5 J8 j
set i! K. D5 H E7 q( s7 x+ e0 X5 u/ r
( i + 1)
0 V8 R# H$ v; B; ]7 r8 E+ o]
4 X* l) }2 Y& Clet j 30 o& V" X; S$ }: N) H) ^0 w
let sum-money 0
4 p2 Q9 t1 M# h0 u& u& ~) rwhile[j < [trade-record-one-len] of myself]0 \, P( z( q2 `& }7 S4 E
[( ^' `& e( `7 }% ]; ?+ y
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)0 \ S" f$ f I$ F
set j8 N1 e6 D2 C1 K: X! V- E
( j + 1)
0 t7 ?4 ?( V: @$ F7 h], o6 i: u7 f+ T
let k 3
: ^. S+ A' Y% b6 h1 I" o& Alet power 08 O6 H1 l$ ~8 b
let local 0" _+ V$ g- C# k7 q5 i; `9 b# B2 y
while [k <[trade-record-one-len] of myself]# x s! m* v: M( O4 `5 e8 D
[* k+ q4 M# r t% q
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)
Z; l3 `% g6 u) N6 ]set k (k + 1)0 H; L4 b4 h2 b. {5 H C& a
]- p# l# t' I9 K8 ]
set [local-reputation] of myself (local)4 X. c: n& N- X7 _
end
: `0 l0 F8 R8 B. y" s6 `( |" l/ e1 |1 I
to update-neighbor-total' X7 y" G3 \$ X( Y
o+ k7 o( p8 x8 M, I6 ?( A: Uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 q' N D% q) D Y2 |! V9 [9 B
& y; D0 q, S3 k* j% _0 Y0 f/ r4 o/ _* ~
$ d8 }. {( D" W1 E& Z u7 Q' s4 wend- `0 M' a9 q" Y T0 S0 Q
; x. v9 m: d7 jto update-credibility-ijl ! l+ @0 Q8 B7 x
0 Q! l+ o/ N& `1 I- l* m$ y3 t
;;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。
# K0 g' m2 J- {. Q& b/ ?! |# y9 ]let l 04 @1 m$ z5 [& B
while[ l < people ]
; |2 b/ A" P, M$ d% F% `;;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
- l, @* Y& e J3 }[( O q6 a1 a4 J' k$ Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 m: c8 n! l3 b, }/ |
if (trade-record-one-j-l-len > 3)
* S# u ?3 l% c* [' f[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
; x2 Z' K6 ` Z" ^8 L8 _( _let i 3) D0 M( n' t9 v/ g
let sum-time 0* r; U! D2 v3 u: C6 a( ~* A
while[i < trade-record-one-len]
& d0 b4 C. f7 f6 B+ K1 w- `[) C; q) J, `8 |; W( }
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 I4 [' c" F4 W- f4 ^# k; l9 Wset i5 j6 o$ }& @0 f d9 \4 _0 r
( i + 1)# n) X; g& M) F" C4 M5 F! k
]
1 S! o4 p9 q/ \# Ilet credibility-i-j-l 0$ `, W5 U! }% D$ E
;;i评价(j对jl的评价)0 t! h# T& o7 S6 C- c+ o
let j 3
! G& R0 V/ _. X8 s0 d" O2 ~let k 46 }: W* r. W& t) `/ }9 o) y
while[j < trade-record-one-len]
4 s8 `% P H+ |7 l% n5 D[
# \0 P% I% Q2 p+ Z) ~' |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3 m0 l+ N' q, _# }2 }
set 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)
7 p0 p* `' ?, K+ I3 Eset j/ I u8 \! }2 v7 d
( j + 1)
* @% U7 S! |$ [' T$ w! X( O]
( U/ {7 D) ^* S0 z; Aset [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 ))
/ y1 e8 ~ Y5 V/ h& P7 e4 b8 y3 p; h, [2 v [0 q0 C
! W0 H( Y6 u) N0 Y* a5 I c
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 W: s- o, c. g d) B x$ {;;及时更新i对l的评价质量的评价
' j% Y+ t3 x* i* qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! N7 m# x2 ?( b
set l (l + 1)2 M7 A5 F4 s6 L' W
]0 \$ |# P5 ? x! h
end3 g1 @, L- a4 @# [+ C
8 u v5 V. {$ D$ Pto update-credibility-list
I& P7 @" H# X; L. R# b: ilet i 0
9 T' X4 N9 j5 @1 k* Iwhile[i < people]7 V3 i4 m$ a% _
[
' `/ R& a; y4 w vlet j 0
; W4 |& }- i" ]% [; nlet note 0
4 }& \: ^" L( i- K$ C) ^, F4 E: dlet k 0
8 e8 u( U0 S( Y;;计作出过评价的邻居节点的数目( r, F) h- }7 [8 t x- K l" e$ a& b
while[j < people]9 A. Q/ Q0 r5 Z0 L% T
[& B1 N) {/ i8 c5 T7 K9 ~" z
if (item j( [credibility] of turtle (i + 1)) != -1)
3 r1 J$ t' k5 L5 L; \+ t Z;;判断是否给本turtle的评价质量做出过评价的节点) V. t7 o6 v) H& F; B
[set note (note + item j ([credibility]of turtle (i + 1)))
/ Z& e- a! m4 e) W- n;;*(exp (-(people - 2)))/(people - 2))]
6 t" L3 z9 [& }- S/ \& Mset k (k + 1)9 ^7 G2 i3 w" X! W
]
/ e" @; C7 u/ o U. ]$ [* v$ Yset j (j + 1)
" _! R; b2 a" W$ h# E1 j- y]
4 ~3 l- b3 Q/ g( g# d b. Mset note (note *(exp (- (1 / k)))/ k)
2 Z% g: g* X1 R: j uset credibility-list (replace-item i credibility-list note)' \; H$ I0 r! W3 o& Y
set i (i + 1)1 Q8 F" M& N" }; o% H E
]
' O* H6 V4 ~. u6 g+ M# G& kend* p0 _! D+ u. z# A! g
6 D& M: c2 J5 }4 a/ A- w& ?
to update-global-reputation-list( F/ n, e+ s, S0 E. P- g
let j 09 h3 M/ F& _, e) j2 l; b: n4 ]
while[j < people]
' ~1 {; \; s* p! T[) b! j, j% @/ s; y. w) f" V/ ~9 F
let new 0+ L, R5 u3 e1 h. V# r0 E
;;暂存新的一个全局声誉5 o [6 X7 n- H0 E6 @$ h, A2 Z
let i 0
6 }, L% b. C( T+ H( V( Tlet sum-money 0
9 k; r/ R9 {) T' clet credibility-money 04 K' k# I8 o" ~6 S7 J& N0 b
while [i < people]# H" S: C3 x# q, b- M, e `
[
( j# V/ W9 @ Q5 R4 w3 C1 m- Hset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% B) E1 b; I) dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 W8 o: A+ S% `* N0 B& [
set i (i + 1)
/ K. w- w) T# z2 k, Y- h! Q]& q4 o6 L& c* x" I. a
let k 0
. E7 I- R. b9 olet new1 0
6 r# {% E) h; Iwhile [k < people]
" Q5 K. m' V B y$ [' i[" v, { B7 {0 E+ Q, J& R& {% {
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)4 Y) i+ P0 j% Y
set k (k + 1). v9 ?2 Q: V1 T; S% v
]/ V) w) M+ M4 h$ I; U2 m0 T+ z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; M P( f3 C8 L" w! O9 b5 d' t- ?set global-reputation-list (replace-item j global-reputation-list new)$ E6 Q1 U, I3 `; D6 O( _# g
set j (j + 1)
; o" ^$ I9 o. [1 l8 X, r9 c$ q]2 C, C- T1 l" T% G9 U% W! ?
end
* \% b5 @1 \' K L! J+ E! K
, _8 W& q$ I; t- S0 c, Y8 D% Q- J: F# q* d. d R& s
8 @! T7 ^% i9 _to get-color& s2 h4 z; K+ C7 Y
( k" m1 y$ v/ j5 N3 B% jset color blue& U" l) z/ A; q6 [
end; U2 y$ ]2 ]9 \ N7 ^
/ \8 u' B! T8 c
to poll-class
1 W% a$ w1 ~) _$ K7 Uend
% { B9 }0 H) Z) R0 ~, Y
' T$ C/ s' w: `9 _, \to setup-plot14 ^! ~4 y$ X/ ]% |$ Q6 S! x
* \: |! k' d! O4 h3 t
set-current-plot "Trends-of-Local-reputation"8 K L j" ^9 r; j4 J; v r4 [
. \$ Q8 Q4 o# a- K- \$ n
set-plot-x-range 0 xmax# V: d2 \4 `2 m/ _
7 W0 Q* h% ^4 w6 {4 I
set-plot-y-range 0.0 ymax
: Q( c( V% u* t0 [# _end3 Y j f; S6 Q: T" k( @
% A; k, V' T7 P5 ?' s0 z) D' sto setup-plot2) A/ ?& Q I3 I" k# R& ?. ^- u
9 Z7 Q3 j" [$ J P6 zset-current-plot "Trends-of-global-reputation"
# D P, r) l7 b( e9 l) R; B
; y, z4 h3 F# V7 l& Z sset-plot-x-range 0 xmax4 w% e; j; h2 r1 d" O
4 A% c" D% U" U5 L6 pset-plot-y-range 0.0 ymax5 n+ k0 J$ q8 x
end
! \) q9 l N) j0 y1 f) r
8 B! ^. i& S. j( R* ~to setup-plot30 `" u6 ^6 n Y4 b
" `/ `6 g% d& a4 m5 d( z$ fset-current-plot "Trends-of-credibility"
( k0 o5 f* Z( K
/ [. k5 w8 @- f! }set-plot-x-range 0 xmax) Z6 R2 `' H" {, v2 T2 m0 A1 s9 v) Z
" o& T$ r6 I7 B" T3 Z# ]6 Aset-plot-y-range 0.0 ymax
0 c& v& l' U+ V; xend
% M" U* T2 W, v8 T9 b$ J
5 Z, k; {! p6 `: h9 H/ O% q8 cto do-plots
1 t+ j! Q$ r( F+ _7 z9 i& mset-current-plot "Trends-of-Local-reputation"
: i( V7 d# ?( Yset-current-plot-pen "Honest service"
0 } h; Y$ D9 `) x& [5 I' h5 fend$ Z7 S3 ]' x7 R7 X% F0 [4 x' B
0 o6 X# \1 \$ Q& [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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