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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
: {; ]: \/ K5 Z eglobals[' X* H, G) g* u3 j
xmax4 l2 p1 E. r: M8 U2 j. L
ymax! D$ `. s/ ?$ `7 R* c* E6 S# {
global-reputation-list- g5 r, E' E. l f
_/ Z, x' Z W
;;每一个turtle的全局声誉都存在此LIST中
( U3 O/ G! e8 a3 v, s7 s. lcredibility-list
+ U. M" C3 K4 ~2 l7 T1 t8 W;;每一个turtle的评价可信度
+ Y! j# |8 j; Y+ b. fhonest-service
' T+ N3 s9 t" e. Nunhonest-service
" J6 u% Z) }# W. T& loscillation
5 a' t5 w3 h7 |* zrand-dynamic
& o. I* |7 s3 |! Q# A]0 s1 b* p) I" S
# g6 u" E5 V- l/ a
turtles-own[
+ M3 x; Y# h7 D' K$ M8 G3 a; Dtrade-record-all
9 L# r- r! M8 D: \;;a list of lists,由trade-record-one组成& O3 O# s& D* d. c1 M5 G
trade-record-one
1 }+ w5 v. d. H;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 _6 }+ ]9 j6 r9 t/ @" W
7 L6 S( s; \% D. Z t
;;[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]]" t5 O5 t; s, L' Y7 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]
1 R+ X* ^. t/ `, m* Kcredibility-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' j$ a. r( _4 w1 o* Z* A
neighbor-total5 d7 ~$ J$ ~' S% \) Q* l
;;记录该turtle的邻居节点的数目
1 v1 H: V5 }* g: w, u( E9 itrade-time
( y3 _6 |) e1 H7 ~) }6 a0 u: z;;当前发生交易的turtle的交易时间
E x7 s( L! V; \appraise-give0 q! v8 r, a: m% i: Q) k+ b
;;当前发生交易时给出的评价/ g% \9 y$ H7 B, F$ P# ?( g8 f0 i
appraise-receive/ Q3 ?- G* q/ R9 h+ |2 ?
;;当前发生交易时收到的评价
- B9 E2 h/ u3 t5 s* Rappraise-time
3 M$ I) m6 ^" L7 G: b;;当前发生交易时的评价时间
3 c% h% I" A* A4 jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
G; \/ H1 c5 a% {1 y, ?9 Ktrade-times-total
) l" O% T5 l0 j6 k0 l' D; C. B# ^;;与当前turtle的交易总次数
% G* l9 d9 r- n( _trade-money-total
' O! }5 e) K) Q- s;;与当前turtle的交易总金额
* B/ J/ Q3 F; G- ^7 Olocal-reputation9 ]; |, [8 F2 ~1 T
global-reputation- y& \& O* U0 D; F
credibility
/ ~2 S* p* {+ s8 s$ F+ {;;评价可信度,每次交易后都需要更新5 x" k3 z* R+ y0 G0 g7 R% X
credibility-all
`% K! r3 O+ Q G, {; }1 u;;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# `# r8 Q& a! j L$ |9 n
" K) M' }# q) C5 Q;;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
7 q6 _+ ?$ L: b; Xcredibility-one0 z5 U0 s; y% u4 \
;;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
8 l1 J4 Z- P! g8 Dglobal-proportion5 Q* ~2 E$ c- |1 }9 v/ c( L9 o
customer
- r3 b( e1 W& O# z8 p) F5 rcustomer-no
1 V/ y9 I" Q6 A- I- W; ktrust-ok
4 q) G0 p. M ?1 K! e2 wtrade-record-one-len;;trade-record-one的长度
- l3 r1 q* P* N$ X& i* c1 {/ ?# f]
2 E' o: v- B/ s
1 h2 r0 P! F$ G% g;;setup procedure! \( y; U$ B: `) s7 t. z
) H( w% I/ p6 |to setup
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ca
* U4 k$ Z9 w; r7 k
/ H z3 p; M; J5 | `* w' v Linitialize-settings5 O* [: c: ~) p. X* J6 {1 Q
" H- u# Y# f- `crt people [setup-turtles]* [' }2 ?) j5 Q- z0 |
/ Z% [+ G1 [9 Z
reset-timer
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5 D; Z4 Q# A8 z2 t9 t6 y/ t7 {poll-class( j$ \5 p) L3 ]
1 G$ L7 ?! x9 y; S
setup-plots
5 V! p! c1 o) y4 S. S
7 H; O! @* i& c$ { T0 bdo-plots8 h1 \9 R/ J" M1 {
end
3 e- W, c) b+ b/ }9 t/ K/ o9 Z7 Z7 `6 G3 V. {4 C- t5 `* S
to initialize-settings0 f$ v3 L8 @, {
* [& N6 \* ^# J* f5 D8 `set global-reputation-list []
3 }+ F: W6 `8 X9 n
" `, i$ e! q) i/ ~0 x% Kset credibility-list n-values people [0.5]
# L2 S. E" T% A- E0 G9 _5 N5 U9 s( J' N. V: h
set honest-service 04 O F* n/ V, u d% `
* j0 U6 f) d9 G" B# k' k8 w8 zset unhonest-service 0
& W2 b- o7 [7 i0 T8 z; Q. Z2 \6 l, N) E
set oscillation 0! I3 S @- H7 W4 q9 |
) i% w7 U2 j& Wset rand-dynamic 06 b; u2 h3 Z! G9 `0 T: f
end( J4 d" E6 q% k1 N
! M" P( z4 Z* ato setup-turtles
9 S# ^" c& i# p% [% Z( Pset shape "person"
; z- a& X1 }1 M" I8 s) r# c8 osetxy random-xcor random-ycor9 p# T( u- r" s0 a3 B" h
set trade-record-one []. H/ V' R, u9 @' R! a4 h
% D0 ?$ m% M) e. H+ g4 C
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 ~/ F8 S R+ w4 [- P. W! Y. n
# {, k: o9 s; S6 p& Fset trade-record-current []
% K; t/ Z" l$ oset credibility-receive []/ M% M* f0 b! Y
set local-reputation 0.5
% Z3 Q7 K& A5 G/ Q( L9 Vset neighbor-total 0
4 r/ { R; r, d* z k+ K$ L1 ]set trade-times-total 0' s- V: b# L v7 H4 g& l
set trade-money-total 0
% j1 c9 t' j( {" O; Yset customer nobody
0 ~2 t! X/ c" m! ^: F2 a/ xset credibility-all n-values people [creat-credibility]
" N% M9 f0 T% h0 w" yset credibility n-values people [-1]
$ [9 d" Q/ ^' O, ^. t: N) pget-color
4 t$ f- K$ D8 k! ? Y. l8 L* S* d2 q* B( A
end/ `! b' q- A8 x0 m# _ Q( y* a
: s |8 s) \ I4 x2 oto-report creat-credibility
7 ^1 v2 `- @7 o. \4 _9 h. P/ @report n-values people [0.5]
7 c+ a% O- t- P" I* M" | ?end6 M# V! W0 j3 G5 q9 s+ ?2 {
3 C: v! h; G4 K) V: |* Sto setup-plots
% h) \- D/ t& I) @3 `$ E" X7 M C0 l- J. I. ? r! e
set xmax 30
1 D+ s; E# E b' `3 T/ c: S7 O! R( \9 R; s+ ^6 g
set ymax 1.05 ?) `4 m& `( |
6 n7 u/ Z+ [: @clear-all-plots+ O8 D0 Q6 z/ A5 E* C3 i! _9 M7 _9 \/ s
/ x( O. X# l2 q$ t
setup-plot18 d7 [! \- F5 K+ f9 I
4 L" A. Z9 B7 U- C# [& ]7 o6 ^
setup-plot2( [" d' m( D' m) f" z
4 S9 S4 y- M9 z) p3 T$ h. osetup-plot3
( |- m! u+ B5 N1 R4 S+ A- `end( i! ? A0 A$ |( v/ ~
! y9 Q; R1 f% D7 G* y% @; o2 @;;run time procedures
- i. |" m, T+ m1 ?: q, ~' [1 S8 ^
to go
# D/ O7 k1 F: d- Y k+ Q9 T- U1 t0 c* Y5 e; L- ^; q6 a' k) z
ask turtles [do-business]
$ H: w4 I0 M: s+ }end6 M# f- V5 p3 Q$ D
. F+ p$ b% H2 A# x
to do-business
: H( H o, l. B
+ s8 O& X6 p3 }. H! U1 H, C v( R i( J6 Z4 E2 d% I5 Q, |$ B
rt random 360
3 M' W4 V, \: v4 D' A- n; z
# ~) t! q- C! w- G+ b$ i& Z4 ^; kfd 1
' I) o" S! R8 b- f( \3 U$ l1 P& Z0 Z7 {% ]* V4 h# T
ifelse(other turtles-here != nobody)[
2 P& r3 P0 O6 [2 A+ ]7 g
+ _3 y- E1 Y5 nset customer one-of other turtles-here0 \6 r: d1 G9 ]; r! ^; I
" G# v, P/ t9 Y6 r0 K, p! Q4 |. F+ @;; set [customer] of customer myself4 @3 X5 F# H+ f( Q7 b: J
* m( B( |% @4 J: y
set [trade-record-one] of self item (([who] of customer) - 1), L: f3 B6 A+ W
[trade-record-all]of self
3 \4 ]" X- f# l;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ X4 b8 F" A; \9 `2 k& U/ ?+ i$ j# S/ y9 K* E. i
set [trade-record-one] of customer item (([who] of self) - 1)
! O+ O3 K- J& g! }[trade-record-all]of customer
! l0 `( O' E# ]: a( b3 }; @
" E0 L. B' i7 w+ r6 E& {set [trade-record-one-len] of self length [trade-record-one] of self$ B7 v0 W$ Q; l8 O) B4 `
4 ?1 `/ ]2 h+ y& d0 V1 }+ ~& X0 t+ P
set trade-record-current( list (timer) (random money-upper-limit)); d# l8 z$ y# q( o6 e9 E; p
5 q- }" t- T% Z7 _ask self [do-trust]
# i) P9 ^6 M- n1 k; S- d& r$ b;;先求i对j的信任度
" m4 F1 C! w3 B& m9 G
( }! A6 W" m0 J |if ([trust-ok] of self)
- R0 a: b8 z J7 K) g) H V7 ]: A) o;;根据i对j的信任度来决定是否与j进行交易[5 J- d6 H! `; r* w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& T2 m: I/ \. e2 q7 T) A. k R
+ f5 g+ t& J6 K7 V' e# @ G
[; n [" |$ F$ S
' L4 B6 m# I, {" d* M
do-trade, K) N9 m- I1 f; q0 v; m5 R; E
; I: y3 m; e } |3 h2 aupdate-credibility-ijl! e: z; s( C& M& B8 d6 b5 G
! d, h g0 F$ Nupdate-credibility-list
* ^6 {8 T- _/ g9 O' M+ e5 B- G. L' k8 f* X: g" n/ |
3 _; S: K5 Z& o6 `% ^% ]; L
update-global-reputation-list8 b. M; g" l) p
& y! q' R$ c+ F0 e! n: B5 n
poll-class8 V; g6 ?% T4 t' I; T' |
, u- N4 n. I) Q# Q/ E: @, Uget-color- k- D' @- f7 p
/ U9 j" D. R) m
]]1 Q+ }9 W) r) r) I7 g: q
; e5 U4 M3 k3 A" h) E7 E
;;如果所得的信任度满足条件,则进行交易
. E* R1 N( d3 |4 n$ n L. r6 ~+ U7 n5 n3 `
[% t/ Z9 ^6 l% A, z
9 _9 Y6 c# n+ z; {4 c9 vrt random 360
5 g+ J B4 j3 a W' W! g( y) k! ?9 C7 r) K& a2 H% P
fd 17 Q: v7 X! v8 F8 X
5 |5 g! d" z' R6 z
]
/ b: |- I. z8 E/ m( L6 W# |0 j5 a3 @ t. L; g1 B+ \: y* ]
end. I( f O, G- Q. b9 J* \
3 W- B8 e* n6 Z: I- x, Dto do-trust
4 h9 W- n* a- S6 |* sset trust-ok False
: o1 u; {7 `; d& r" C3 g D4 Z: }; F$ P
3 d6 \6 |+ k: Z% \8 Y+ C7 S6 `let max-trade-times 00 r) N% u9 F7 l- W- f4 C
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! q3 ]' ]# W! Olet max-trade-money 0
r0 H, I& B$ Y3 W1 gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) G1 B5 W7 c; }! clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- s9 h4 `2 B( X3 R- V: x
8 t8 r2 D5 q6 y8 i0 h& F! {, c
( r6 l+ e& ~! k/ ^; ^$ N0 a0 ]8 Vget-global-proportion
- T! y9 e; F: A* [let trust-value
. E) P3 U& b. ^9 vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)* T& j. Z" W) v7 q7 J: B+ [
if(trust-value > trade-trust-value)3 I9 J6 H# b+ o/ z- q( L5 ~" e
[set trust-ok true]
# d k% ^( g$ P; l" vend3 t# h. ^% N+ W
3 Y" R8 M( V' h% H
to get-global-proportion
M0 s9 G8 @4 s3 ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 e5 C' b, h% G0 _: ]
[set global-proportion 0]0 @8 M1 w1 h8 t" w* A1 `
[let i 0
, M2 j0 X( E- \$ b5 w! N' \let sum-money 0" S2 r3 T; ~# C6 c. K
while[ i < people]
: C4 v4 S$ S8 G' ?* i[
/ L4 `. H* F0 }5 N+ x% `$ ~" Tif( length (item i
$ L2 D4 g6 }1 o[trade-record-all] of customer) > 3 )
2 [5 z& H1 S6 y; I7 Y9 n$ |[ `: ~( j+ S& p# d% a7 C; j3 F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# t* S0 n& f! I; Q% H
]; r1 E" I+ e; K1 o! b9 b
]
% m2 m* @, ]2 p" \* L klet j 0
* C$ Q/ E# E. L0 Q1 Mlet note 0
& T/ K. z2 U; \4 ~while[ j < people]
4 k+ P, u) G7 W: l* r& U[& B! w" A ?" u+ G
if( length (item i) c8 F7 `9 m, T- ]' m; g% {
[trade-record-all] of customer) > 3 )
* |- ~+ r8 U r5 ?! n- @3 z, E[
- ], g: x* S% m, Q7 h' T- Gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, q+ ?5 t/ T! Q4 c% o[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 R2 {6 V# b/ [5 i
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 }0 @7 \ n5 {. P
]
; d* \2 {. i& z! {( z]
1 x, g! v6 c) n* J" |6 f7 bset global-proportion note
6 {9 O* Z/ H8 e/ ]! S]" L. o$ u7 C' l* r2 Q0 `* f
end9 y- W$ Q; b4 D- w$ V* `
' b, o" F& {6 f5 u1 u: q! z6 ^to do-trade; m8 w2 S* T; V8 ]; }# H
;;这个过程实际上是给双方作出评价的过程
/ M* d- z! I2 P- Z' J" sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% M }4 I. e+ L+ ^3 ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 \' z& P& V1 h' f9 ?9 |8 vset trade-record-current lput(timer) trade-record-current8 S. R+ `5 c# [; x0 S6 l. E
;;评价时间
, D) i0 B$ P. `/ M2 d6 h2 A& task myself [
! J) ?7 J' u6 h8 |" Jupdate-local-reputation
& h: l! I. Q9 p! J; Fset trade-record-current lput([local-reputation] of myself) trade-record-current! }: O- d* `0 [9 |6 R# F
]
1 y& p0 @1 s) ?& W' N' zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& l/ R+ v/ k) | L1 i( N6 g5 B
;;将此次交易的记录加入到trade-record-one中* P% U- r7 R: b1 L' G( y1 q5 ]
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 A% t2 v; a# |/ clet note (item 2 trade-record-current )
0 B: Y6 s f( z) U gset trade-record-current
( C/ |: I& U# f+ V; k; |(replace-item 2 trade-record-current (item 3 trade-record-current))
* G5 O# M3 H2 x7 Hset trade-record-current
: z" P1 H; ~- c0 X% y1 Z(replace-item 3 trade-record-current note)
* J) r% ?1 D& }# m- W; N# m
' F/ Z) Y& t* a. D+ _2 w( R) H- K* r& H6 S9 H' o& s
ask customer [
3 j9 B' g% {# v( q. vupdate-local-reputation
F. @! I6 _. ?7 y1 I( _/ Kset trade-record-current. w, l& p2 `$ C w) p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & T! h7 i6 D4 y1 x
]
3 e2 j1 C* \- T
- |! g3 {0 [7 q) w* u; t
2 ?5 _% `& x; e' Jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- K/ k% ]# Q% e- Q$ h- j6 e; A
& j2 u/ w( k( Y! Wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; m5 R% C, Y+ ^% H;;将此次交易的记录加入到customer的trade-record-all中* ]6 A* f% H' z% D- S$ a
end
# M6 @: \; O7 m& c/ e3 G$ w2 ?: R3 {
to update-local-reputation0 u! ]; x8 L( l5 Y% U6 W* M
set [trade-record-one-len] of myself length [trade-record-one] of myself
; a/ D4 y w4 I
$ i* [, O- b, Q2 w2 F, h% k* g! K. i+ A2 r7 [
;;if [trade-record-one-len] of myself > 3
( M! w2 f4 p* p& e% [update-neighbor-total' L3 e% T% V d4 s4 P8 f0 ]
;;更新邻居节点的数目,在此进行
6 _9 _ _; j5 Z1 N9 _/ Q, xlet i 3
' c6 V; P" s0 i4 ^let sum-time 0
% F- ?0 Q) c6 V1 M' {1 s* Twhile[i < [trade-record-one-len] of myself]& @6 ^! S8 `% U) ^6 {
[
/ a5 t( ?, {% |9 {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ i2 j: l/ y; U5 `2 w& C1 I9 |# i0 [0 gset i
) O' r% T6 j. _' f- A' e! r! Y& ], {( i + 1)
- |& K9 O% R9 R p; s9 n]
. [) G8 L+ P0 T4 W8 ?7 ?let j 3
* |) d" z3 J; ?. nlet sum-money 0# K7 u2 j0 _* w2 Z- K" D
while[j < [trade-record-one-len] of myself]( \8 B( O5 m# Z) K3 W* Q+ V5 Y, k' f+ N
[
6 o; U0 \- ?: s# U6 P0 T- M/ y) Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ Y6 D4 J1 |, Z& C+ |! |7 @set j
6 a, ]( v6 r% g' }' [7 O5 U1 D( j + 1)
& t! w+ P$ M1 m$ f4 P+ T]
7 v- A V+ \( y* h6 Z$ e4 H$ @let k 3+ a0 e. l. j9 k) q6 J9 q
let power 0# K, f% E3 @' F# Q( ?
let local 0
. Q" \# o/ _ m. iwhile [k <[trade-record-one-len] of myself]7 l/ H/ V% I, t1 f
[
0 S- M) q3 T- j( i: L2 ?' pset local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money)
7 g" L6 G1 g6 [) jset k (k + 1)+ W) I; K, {2 d- D& W8 Q
]
1 l+ }" M; n; Oset [local-reputation] of myself (local)" c* h, k) Y0 a6 ]- o
end8 r- h" ?! e8 {4 n. a
$ R- c \- l9 a7 Z" B- yto update-neighbor-total
; D3 W- L# G) M4 v$ a% q7 b' `; j7 T- i5 d7 | N( {, p% @0 Z) y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 U% W6 K5 o: Q
, N q- O1 T4 s( D5 E
. |/ N& l, G6 e' O0 j
end2 `( o! e2 G8 T
3 w9 ` R5 H5 ~6 a$ Oto update-credibility-ijl # `, \. U8 t, M; \) c
0 J4 r$ D, l+ p5 R: P: P;;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。5 ?; v, O2 l' N7 a; n1 X; c/ l
let l 03 u3 u7 f: r! V0 I0 c
while[ l < people ]
: X* O z: v. r) ~& b; G$ ~3 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- o3 P. D( b7 y; l: s# Y1 k
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
! b! p, O* M: Oif (trade-record-one-j-l-len > 3)
7 ?' f3 x" z) |, T, 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
2 j7 o$ @: E8 ~) K9 zlet i 3& L3 p9 i- L5 V, z/ S" A9 h/ |
let sum-time 04 ^# S, m) M- A! g" T, }2 M* u+ T/ Z0 }
while[i < trade-record-one-len]: K r; ?2 g$ _ U6 C5 m
[2 | U! r* I D3 S/ ]& E* [
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). @$ T8 a, G( t0 V
set i
) f1 ]% M' O& f6 F, [0 B( i + 1)
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let credibility-i-j-l 0
) O/ s: A& s# g;;i评价(j对jl的评价)
& x" t7 @. }) a4 | E/ `9 J/ ^let j 3: H7 n0 K6 w' p/ T! @) E: ~
let k 4; ^; f+ M- l7 z! q
while[j < trade-record-one-len]
7 e- h& Q$ ^3 z/ L[
0 ]' G6 k2 U8 ~# M# p# G5 p$ x3 L. U6 X, Pwhile [((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
5 ~4 R! a4 p5 i! Y }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)
{1 i$ i; I, K% F0 x9 \/ _' Z; Fset j
. B! `9 T0 [7 f) k$ P( j + 1)
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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 ))0 g1 X, L# u5 ~- L% `4 W/ T( o
/ L: ]& O/ I; k$ a
0 v) ~4 L i% X5 M8 vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 ~* y9 M3 z$ A6 Y
;;及时更新i对l的评价质量的评价+ p' Z9 @+ y+ J! _: `2 ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] v3 @. G) I' |
set l (l + 1)/ S! C4 v |& H) ], M1 v+ g' h
]
6 ?- o( e1 ]& l& s/ gend
& Y5 X. w$ l( V4 k% [# W; j r" U9 I; G- G
to update-credibility-list
) i/ a/ j; I) ]5 @* r$ `2 Xlet i 0, p" Z6 l: |& G, D; x
while[i < people]$ U0 O+ d' @3 M, [- A! y: F
[% S! q) Q3 M9 Q; Z- Y
let j 0/ F* O) n, [5 @4 x8 E
let note 0/ H. x8 X& Z$ ]% x$ I
let k 04 ?2 f7 K, f3 ]; G h
;;计作出过评价的邻居节点的数目
8 n, N5 `1 e7 O9 q1 Dwhile[j < people]
2 o, i" |! z& [! z1 ]: q7 D[$ e/ {8 \. b( b3 S& b
if (item j( [credibility] of turtle (i + 1)) != -1)
2 u# @# E1 x- D4 Q9 U$ ?;;判断是否给本turtle的评价质量做出过评价的节点, N5 g5 C# X* y& P
[set note (note + item j ([credibility]of turtle (i + 1)))8 q9 A1 ]; X) H2 T5 m
;;*(exp (-(people - 2)))/(people - 2))]4 _( j7 m( ~& b4 N ]/ \; H
set k (k + 1)
2 |; _3 _% P1 C2 J" u8 L$ c2 @5 []
" }) i$ Q. c2 aset j (j + 1)1 v6 U* ^2 K% N9 c- c/ O8 ~2 [! {
]
A! w; T4 e3 N! I0 M( aset note (note *(exp (- (1 / k)))/ k)( v2 r8 C# F7 }( m7 W5 X/ Q
set credibility-list (replace-item i credibility-list note)4 D+ x4 Q/ Q& l3 y) d+ a& y
set i (i + 1)- y( `. B# W3 c, o) y' \
]* @/ n2 P* g/ R# I: B$ p
end
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to update-global-reputation-list6 g% s2 e% ~& m+ g x B
let j 0
$ p- ]# `3 q; I: T0 i/ ~ {while[j < people]& l b: ]& v$ ^8 f3 m+ H
[* G& A- ]$ H4 x) i. R
let new 0
" u3 T* q* l4 h;;暂存新的一个全局声誉
8 N! t: Z4 Y/ ^& x# llet i 0/ g- ~9 k o+ t! T# e) S; L
let sum-money 00 C2 k! T) D8 \
let credibility-money 0
0 L" M0 L/ R+ Y* s/ C9 e0 Wwhile [i < people]
" f' `. q% t) `& e" y$ U[5 C; Z4 }( P/ @3 X. a
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 z. O% T, N# h) a. i1 ^: v. Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), {$ n$ M n0 A9 ~$ k
set i (i + 1)
1 n0 v5 o9 E" \) A]: D/ \3 f0 H! \# G" L
let k 0
% N, A9 c6 ?2 n. y! ?let new1 0
% |' q& a5 J! @' @* D1 Nwhile [k < people]1 g, F( |- C/ B- h
[
M" [$ f+ b6 oset 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). z8 y0 T6 y& E0 g+ C' E8 [
set k (k + 1), _0 r) `0 S; [, g
]
% M! ~+ u" }- I4 w" P$ w' P! Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( n3 g# T3 ]# E( M/ ^( nset global-reputation-list (replace-item j global-reputation-list new)
( I7 ^' K. G, G6 U5 `set j (j + 1)
; _ e0 F5 ^1 `- h" p2 y* u]
; U; X" X1 a0 G8 pend
, r! `8 ]5 u# [# s* e/ M$ ?9 }9 e" @4 V7 u
- T1 I; U; ]) j: S: A: f. D7 u
9 V' t/ A, K+ Q# n \
to get-color; o% Y. b$ q+ e, \
* A; y5 h0 D4 `* ]6 P u; Y; Uset color blue/ T; P* w0 n* n$ Z2 S! N( f1 |, R3 Y9 N
end6 v. F- Q0 O. L. Q) M" j# v
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to poll-class) m) m: T6 E$ y+ v+ J
end
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6 t+ a/ E9 |: E& x X3 dto setup-plot1. N1 U ]! m! \5 O0 [" w( F* m
2 \! z' q8 Z* i. m' kset-current-plot "Trends-of-Local-reputation"0 m% K1 h# n" F% m. l/ @+ ~
, j7 S+ k: E8 @! B8 o
set-plot-x-range 0 xmax7 |) D. @8 o8 Y8 t/ U
3 {) D" Z2 r1 S, C5 m" s* [
set-plot-y-range 0.0 ymax
) d' M2 s6 |/ F4 G, Nend1 H) R3 O! a H$ i; k& _" O
1 V/ Q K) {0 ^/ Ato setup-plot2
: T4 `* u0 ]' j3 T
8 s; L( c) [5 nset-current-plot "Trends-of-global-reputation"
}* `' u2 b/ h' Y/ D. R% B+ L: |3 V3 ?; t2 b
set-plot-x-range 0 xmax$ i6 ?$ r) G2 n* F0 b+ V
7 z- f( Z9 v, sset-plot-y-range 0.0 ymax! F9 q4 A0 {0 N" |& X0 o: `0 ]
end
: y- d4 U$ L' M, x3 a5 E# F/ ^$ ~% o; Z+ T; p5 L0 P
to setup-plot3
! m- ?; H) I: D- h7 O/ O
0 C0 p4 D# g* O) Vset-current-plot "Trends-of-credibility"
$ J- y8 c6 t% U7 T0 k X4 w4 E$ P* i0 C2 B9 x; t; O3 ~
set-plot-x-range 0 xmax9 g# b; G' p) ?- }& ^7 c! n
; @; P$ g6 p5 u4 x9 W5 ?* C) gset-plot-y-range 0.0 ymax
4 v; `( Q3 m' `( t! G5 M* H& t9 v; fend
" Q( x% h* z1 i6 v% C* y: Y1 x
) L) D1 X+ i2 K; ]# [+ k2 T! dto do-plots: x, m8 W5 {6 i0 P. y
set-current-plot "Trends-of-Local-reputation"
* K0 g+ ]& r2 X# Kset-current-plot-pen "Honest service"" ]6 f8 ]$ }1 p. b, @9 ]0 Z: y
end
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. Z w" v8 e! n. H, j# E8 y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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