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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+ o$ F. j7 v0 V9 Cglobals[
8 y& X, b" U- q( hxmax! v6 m. k6 v2 ^6 O: [9 J* y
ymax" K% b% H4 G9 k
global-reputation-list0 n, y5 L! z+ K$ W5 B
8 V* G/ `3 w) ?$ L; ~$ v;;每一个turtle的全局声誉都存在此LIST中: V W3 |" {% F
credibility-list
! g" x7 g4 d( L0 y3 c7 _3 t& X;;每一个turtle的评价可信度
3 M3 o+ K7 P0 @/ m# k2 Ohonest-service
8 X& S5 [" u ]2 `: C1 P9 O+ J) {unhonest-service3 S6 R+ H2 W& z& @3 w& B2 P2 g
oscillation' D h5 q0 W# H+ Z; z1 @
rand-dynamic$ S4 `! r6 m1 }
]
* L, i9 e" q! N# K6 r- j2 c, j0 w K* I4 _& N* g" ]
turtles-own[2 a8 d1 A% a0 ^2 x4 o" u' c& ^
trade-record-all# a0 h+ J1 R: ? ]& U5 a ?2 d
;;a list of lists,由trade-record-one组成
% q: g! |, K( u. [/ }' htrade-record-one, u& [- i, o" 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
( N8 B8 d6 n, ~+ t3 B& U0 u( S) V9 t# e- t8 |; i; j
;;[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]]# O9 K* S, e4 x
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]
. X% s# n! ~' A) Qcredibility-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" _2 g; n/ d6 j D9 ]# b
neighbor-total) {0 T& F- }# @: J" l
;;记录该turtle的邻居节点的数目 q- X4 g4 @# P5 n+ c
trade-time
?) t7 p0 f( G2 y;;当前发生交易的turtle的交易时间
) `5 T) e6 z! f7 E& a$ D7 Pappraise-give
" F+ k# Z+ Z. p; R4 h;;当前发生交易时给出的评价
) X6 j2 X, K4 Y+ w0 d8 _9 Q' g# tappraise-receive
7 W% l4 ^) s$ l4 U;;当前发生交易时收到的评价
. L; S4 a3 ?, k! iappraise-time# ]" G+ ~& k: k+ O6 ~% h
;;当前发生交易时的评价时间
: k3 Z1 I( y/ r0 s: |5 Klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉8 Y, U) a; o) F" F/ L0 ]/ q3 T8 S
trade-times-total( i& y) z* H+ M
;;与当前turtle的交易总次数
, s1 C6 z. x' Etrade-money-total
! R) \/ |& Q7 J. Y$ f;;与当前turtle的交易总金额. I) K9 s* ?# j/ b9 k2 O
local-reputation
5 F. h; T& b- A. W# L8 B% Lglobal-reputation/ c/ l+ t. b& p
credibility! o; Z+ Y! |( k) k3 E
;;评价可信度,每次交易后都需要更新6 |, M) D4 l- P3 M+ M" d" R
credibility-all
1 e& n5 u6 T2 w! }3 v$ 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' b7 ^6 z+ G8 [' r8 s3 {
! E a9 o! P# C4 v
;;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
+ y9 Z' Z, C' [& p% dcredibility-one
0 x- ?/ P2 r1 }8 c;;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
" p. ^, \3 _1 y$ f( Z* Tglobal-proportion7 T8 k' o* {1 T4 l
customer- S g) [ g& N- t
customer-no* E. i. `! u0 L% }7 a/ ~
trust-ok
$ ? t1 V5 |, H) w# h3 atrade-record-one-len;;trade-record-one的长度0 g/ Z3 q a, y7 c5 F9 F* m" M
]
* m2 e0 u8 o( f1 @) n$ k
: Z4 l$ h9 X0 p0 @. C; |: m;;setup procedure7 x" [7 D7 e, S
5 V6 O8 k- Y& C d- l; N T7 c2 i! N" tto setup
8 z x2 E: m: S4 f
# e0 I) }* W' g& ^ T7 [# jca
8 O) L( Z! q( W) D& Z7 a) }4 [6 C1 z. G. c; B& D* S% B8 X5 V* ^
initialize-settings
7 R$ D! \! U* F+ y/ `# V. H( g
4 m! W4 [7 I7 Ycrt people [setup-turtles]; t# i) Q+ M; @. a: P
: r7 w) L$ q- |, [& S, s; ^) Preset-timer
) P0 e7 b/ [6 d6 H7 M) E
. W$ w! a' S3 G. K7 b+ Tpoll-class2 w' k$ U7 M- ]) `
2 w% a9 E% r5 |* v* p: j. x
setup-plots
: l+ p& u L3 ~& O1 _! Y1 O$ m3 r( ]. P+ l3 V( k4 O9 X8 c& s
do-plots) ^7 V& u: f9 A+ d2 W
end$ p: S% T) N X9 m8 h! w) H
, _. n$ ]" L+ E/ V
to initialize-settings5 D8 A/ `0 K# V4 ^" x; n
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set global-reputation-list []* t3 y& P% u; _" @2 I% U
% t4 Z2 V: R+ F \8 W8 L( a5 `5 ^set credibility-list n-values people [0.5]$ }5 }2 c5 U Y& t/ L/ ~1 H
! X& q* G* d- w! s& aset honest-service 0
# L, { V9 m3 [0 d) M y4 X o0 F6 D m( f
set unhonest-service 0: n; f5 W" r G! s: f# d7 N
, y+ X; @3 J7 \9 u; w" h9 u
set oscillation 0
0 d( l# o$ D0 Q7 y) \
. X4 L! K9 L; A' @/ Sset rand-dynamic 06 d0 u# M1 y6 R- E x
end- N+ A4 q5 Q/ T+ ^
# ]) g. F1 _' x( {$ M3 Bto setup-turtles ! x$ {% }6 L/ {! K) [; E8 c
set shape "person"
4 S) s% w# j) }setxy random-xcor random-ycor- y1 c! u! j) P6 U+ w
set trade-record-one []1 ~% e: f* K: [
3 K, V& c2 z" T$ k: Z( S5 c
set trade-record-all n-values people [(list (? + 1) 0 0)] 2 K. {5 [& R0 K) j6 ~! H- ^
. q* P6 z1 v$ |5 P) l
set trade-record-current []& ] K! r' R8 m; I/ l. E' l' F
set credibility-receive []6 B. q- n: d0 k- S; `
set local-reputation 0.54 W$ h7 r& Q4 P% ~. e
set neighbor-total 0
; {- I' v: ]1 \* i" Zset trade-times-total 0
5 b/ R/ k# ?/ ~, wset trade-money-total 02 j" q, \; N1 b
set customer nobody' m/ r1 o3 F$ B, k6 p
set credibility-all n-values people [creat-credibility]
3 N. O( w! j* P& s: D7 S1 m7 eset credibility n-values people [-1]' `2 i% [% t2 b) C' S
get-color
h5 l6 n( F, S7 L( n8 ]8 g7 D! }( G4 @2 h. L+ [; h
end8 d( G; z# N+ Z8 ]2 G# D t
0 \( V" a3 j$ h2 m$ ?, s, x. wto-report creat-credibility- o6 q9 r9 L& J: s- j" u
report n-values people [0.5]
/ W! C" |# ~/ ?# O* Uend7 a% H. j6 ^# d8 ^! h
5 S" L. w0 t( L. M
to setup-plots
3 u) O& d h3 B* r
4 }" D/ z3 M) Z- e5 [4 c% Mset xmax 30# H. n, W7 ~' z( W: Q
, {( m: Y6 R2 Cset ymax 1.0
2 r& R- D0 {. f c* ~; J S# \0 _& _
: t _: H- ~& \clear-all-plots
) Z, m( ]* [8 f& {5 x! f) c4 v" }5 O8 w# H
setup-plot1
1 R+ E. K. v; U9 D/ ]) i, s4 K; `; _
setup-plot29 @: ]5 o' `: q. i
S7 O" {' Y C6 ]# a5 ~( L0 H# [
setup-plot3
6 y9 f2 d6 I2 rend( A3 V* y$ p2 R8 U
# l5 c: A0 \; n7 ~0 z( u8 [; d( b E;;run time procedures* @& L# f1 N( C( {% T. k: } p
& e# l; m3 \: H$ q' }" Bto go
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8 q! U! x3 |% A% a7 Hask turtles [do-business]+ S3 K/ t1 b+ R, @
end
7 z3 `' s1 c. [/ h% h
: w% g( o3 D c% C% w1 lto do-business + b* ?2 q: d0 F/ z* y7 Y
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rt random 360
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/ L& U3 ?: U$ [, qfd 1
% K+ _# I; k' i. v' O; \4 q1 Z, L* j' k! v
ifelse(other turtles-here != nobody)[
% Q; ^6 l! O/ U, x2 T/ P
* @* H7 P+ e5 E; v% X( ^' Vset customer one-of other turtles-here' g( H2 k$ a3 i4 Y' u* m# ]8 E6 }! V
% V- E8 J% P J4 E2 q& L3 O;; set [customer] of customer myself
! H; v1 t( K$ m; Z
: B+ p1 D6 l, \7 Lset [trade-record-one] of self item (([who] of customer) - 1)
0 i( F9 N8 F, b; H[trade-record-all]of self
& [& i7 b" b# z J;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" W' @( v, r! ]) {7 f. C
( m0 n( v! R9 t/ T! Y: S0 v7 Fset [trade-record-one] of customer item (([who] of self) - 1)
9 ]; K5 I1 W2 C/ p4 f+ w% \[trade-record-all]of customer
0 R k }& m- V" R: L$ t9 g/ ^
( S( ~2 U; v7 `- Q/ c* wset [trade-record-one-len] of self length [trade-record-one] of self
/ W% k) C: m# Q1 I# M% C. c9 r
set trade-record-current( list (timer) (random money-upper-limit))
0 l4 H5 U8 c8 j- z i/ w3 |9 Y0 P0 r/ A- @
ask self [do-trust]
: X$ Y! o5 w/ r% R/ V;;先求i对j的信任度' C/ z. e6 N; |9 {
7 ?, G: S) [% ^+ s$ D
if ([trust-ok] of self)
X% b- h& c( L: m, B" |;;根据i对j的信任度来决定是否与j进行交易[6 o8 r, Y6 n; B/ {* J
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself M0 i& d9 T0 v3 g/ \5 Z5 C
! f4 k% t+ j6 I7 O+ a1 u
[
z. g3 s/ C" Q3 T2 w9 c
; Q1 @; t5 j+ ~, r9 s5 w2 Z# hdo-trade
# E6 h7 q4 p( @1 h
: `3 M( x! r: v* z- Kupdate-credibility-ijl0 m. T2 F# W1 E K* w" p
1 l. s5 U5 W3 z, \$ n N
update-credibility-list
8 K) }& s0 {5 [# I5 _. `3 w. f6 x7 j5 K8 p( M7 o* \: a
4 I( Z. p! h" t6 ]/ j3 i( f6 U- a
update-global-reputation-list4 J6 [* S0 O- b
7 B! p" f: | D- Lpoll-class
: `& ]! h ^0 } M
1 O5 y4 a# e$ V# D0 \get-color
$ {( w9 b) G, ?3 Y8 c
$ f4 W! D- L; F6 n5 @( b]]
: ?* E! W) t# W( y2 b. q0 H
y i" R& D6 F/ o;;如果所得的信任度满足条件,则进行交易
4 G# a; ]5 O0 J" {, D, v! l* P6 s3 X/ p* \, m1 b
[
6 ~6 h' U3 P% n: m
: l* W# p2 M9 r5 u5 m1 V3 mrt random 360$ K( H6 W g5 f# r
1 B8 }+ f5 k. f) p$ l) F
fd 1
+ D, _' Y- M' W+ u" }, ^+ f
6 M8 U. I. d7 M q" ?+ Z+ J' C]
: j! O1 f* f4 A+ \% b9 x; {6 _8 E5 H) q" ]' s$ E2 D7 Y3 Z
end p" W! J8 |8 O9 b
& T' a9 D% |# A& {) c7 Uto do-trust
8 U: h, V$ b3 P0 ]set trust-ok False$ ~1 M% @& i% [
* S0 B4 g% ]& H- F$ {' O" l7 C8 g. \* E
let max-trade-times 0
' j! m& Q: F. B8 u( @& q' Dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" p% l5 K2 ]/ c. M9 a8 ^$ a
let max-trade-money 0
/ V1 h( K! |: ?& F+ n Q+ y3 Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 T8 k) A( b9 s6 i; K9 Clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
]0 x2 e, j- n0 F- t
7 c5 z# Y e: ]6 H/ N3 p- x, j2 V
get-global-proportion, b% y) h; p8 N0 i3 Y+ f# j7 W, P
let trust-value4 M$ J4 K6 u2 Y: P- C
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)) Q. U3 ^1 Y6 F5 V5 i
if(trust-value > trade-trust-value)" ^! ?' H; c# Z% y
[set trust-ok true]7 x& k! p5 [& Y f$ h& B
end
- H6 S; a) Y# | e
# B- U7 T4 M5 S( j) J8 zto get-global-proportion p/ u8 v* [4 t3 [: U
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): x# X6 e% p: `7 p, V3 u
[set global-proportion 0]
( J+ g- Z8 o' G[let i 04 l5 E& U( q+ a! y& \
let sum-money 0' t& G p$ r- |8 q# u0 q6 v
while[ i < people]
. \; z ~% [5 z6 X+ Y2 `- q[
+ {( Q3 T, D0 X$ }) k: F! Q! ?; g% j# j5 Aif( length (item i/ Q7 f" W1 C% ]# Y9 h1 k9 `9 E
[trade-record-all] of customer) > 3 )
8 T. t1 d+ F1 w[
) @) O1 o. _* H+ V" aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 z+ R3 V1 R" g, c/ Q/ W* Y4 g! @# _]
/ I, Q' B3 ^8 v. z* D* Y]
* S9 F* g) `+ M% l) J* klet j 0
7 B& Q, v% [8 S" `: J& K3 U5 |' ylet note 0# b, N( T; T# N
while[ j < people]
0 T2 |0 B: K6 A$ G, }/ S1 ?1 s[
: d, z9 b7 A' ~6 Cif( length (item i
6 F u% k8 A* m[trade-record-all] of customer) > 3 )/ J# t+ ^/ o: P0 v9 J
[3 h6 s8 A6 d: x( {5 @+ c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ s. d3 o, G- v5 ~3 v: G9 U: z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 {) C* M; h0 a$ K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' z/ M, E; A% Q1 D0 {% p+ G( J/ O]
, ]& g: p; y4 N/ T]+ {2 ?5 H5 v# \9 m
set global-proportion note
% ]( a/ h5 a# v3 l" y: z]
6 y; y; R3 w* I$ Fend
0 R) o# k( @4 ^+ q
) B3 ]1 ?7 R0 e3 ato do-trade
0 K" @. |2 L$ P6 h4 ]) a;;这个过程实际上是给双方作出评价的过程+ k' f2 }( S4 t [5 [: M/ D& X C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* w! j1 ]$ M+ M dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ I3 O$ F |( u D* }3 j+ Oset trade-record-current lput(timer) trade-record-current
& k$ |8 Q2 h3 p" v" e) z- u* S8 z+ e; p;;评价时间
I$ d9 ~7 j2 B( v' l5 _! y- R( bask myself [) f% M* X# }" D, A/ o8 ?- r
update-local-reputation
$ a( _+ T" }6 c5 E" Z$ qset trade-record-current lput([local-reputation] of myself) trade-record-current0 P9 B ]# I9 K, V
]
9 H# q) n- F8 v1 t1 Kset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ w' C; E) o8 |- T& P& _+ `$ S. n" L;;将此次交易的记录加入到trade-record-one中
4 X5 j7 ~1 q# Z. R9 M3 uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 M# N2 J5 x7 G$ l0 plet note (item 2 trade-record-current ), i1 h* ~2 j% S+ o- V7 ^
set trade-record-current; g$ S% x/ ~( V2 R. N6 F" m
(replace-item 2 trade-record-current (item 3 trade-record-current)); }) W; }$ _% c# E$ v( k. T7 B
set trade-record-current
5 S. C, {4 b }4 ? q(replace-item 3 trade-record-current note)
' T3 f$ H- G+ i1 y& D( F
# R. P9 S8 U* [/ X/ M' R, a3 U+ y
( D" ^. y( R6 Vask customer [
( f* \2 I! [ dupdate-local-reputation
3 ?- d4 {. A. v$ yset trade-record-current
v) \$ N( K% E. T. I* v, D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# ~' g% l8 M# p% c+ p4 n* H8 a3 w]
8 h" Z' V. O, h4 D y6 W
. z4 }" Y9 G1 l7 X+ R& M8 C4 |5 O/ } J
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" z; L+ }2 _( J/ T& x0 r7 v& T4 h) z8 T& i3 |7 x! `8 q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) S4 A1 U ~0 m4 Y! a" {;;将此次交易的记录加入到customer的trade-record-all中
9 K4 e& H% n4 ?! w' oend) u4 d! ?, W6 f% J- F' Y3 g
9 S1 R1 B( Y, b7 m' z
to update-local-reputation1 N2 I1 F, P6 R
set [trade-record-one-len] of myself length [trade-record-one] of myself0 G1 ]- u7 a% r$ h0 _3 M
* ^, {4 i6 q. b$ I p3 w9 U0 G
! L+ [8 \% f, f% k, g4 a* m4 U;;if [trade-record-one-len] of myself > 3
5 \- j; a9 ^3 e9 V5 q8 k r$ D" Mupdate-neighbor-total
* M/ R( P7 H( I% N;;更新邻居节点的数目,在此进行
& N k( @4 \; x. `let i 3, ^8 }; o, }$ O4 H1 ?
let sum-time 0. E* F5 I; C9 v/ F4 Y" g/ Q
while[i < [trade-record-one-len] of myself]/ `: n0 w% v8 ?* g+ b
[' g- q/ g0 v+ o3 j+ E+ f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( R# U: }) t0 x! `8 n5 ?set i
0 I" a7 B5 T8 f( u4 \$ r' _6 |( i + 1), q0 l: @2 I1 ]" Q( M: Z* k
]) P+ f. j u2 q9 o- H
let j 3+ T, Q0 }; S, t
let sum-money 0
; k3 Q9 R* e I" G4 W4 Pwhile[j < [trade-record-one-len] of myself] Z3 A$ Q, H1 W( t; \0 V8 B
[
9 q/ O. W% l; ]/ r, Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 C- I( Y4 F3 {" P3 ?( m3 Q& n
set j L( R7 J5 z- m- r- _
( j + 1)
, H/ U; h l6 t* _" W+ ?]
% z3 e1 }0 V8 ]1 ]/ u9 Hlet k 3( \8 I% F: j! v0 z
let power 0% i, F9 i2 h' r, v4 E, Q# v
let local 0
) I5 e$ |* E ~while [k <[trade-record-one-len] of myself]1 O9 h. y& z L* C
[
) u; @( a3 P, N+ Jset 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) 9 e% j# X" x5 y$ v* o
set k (k + 1)
* ^) q) T) N& S3 S- E! ^% t8 b]
* o/ x# f9 ?, Q" r# k; hset [local-reputation] of myself (local)
, W b, l$ _0 O' Qend6 g* Y1 r. ^3 `) ?3 C
# c* H0 b: @/ g6 h
to update-neighbor-total
' t# G F. v( A
9 q! V0 \ }: X- b$ lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# h( |& M c/ Y, ]$ m6 C& I
( p, r: y4 Q% _) A H- M
" P# x' j# V; B5 P, X$ t( X2 K& Bend
2 h! V5 q- g' p6 v' q, \+ X4 ?
! {* @2 J# u! p+ K( g4 f0 Ato update-credibility-ijl 5 o: V5 B& X- C% y/ \3 D6 U8 i5 H7 G7 L
" Y3 N; N, M$ M; @
;;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。
; G7 J# ?( A2 }let l 0
) g3 H% x& Q& _/ I; awhile[ l < people ]6 r: H9 ]$ F6 F. I+ \
;;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
* ~% k$ j. Y* E+ }( V6 y, R3 F[
9 Q% D) Y! V { olet trade-record-one-j-l-len length item l ([trade-record-all] of customer). G) F- z6 R9 V8 Q! [
if (trade-record-one-j-l-len > 3)4 Q9 _% y; y6 @7 _( Q
[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* ]! G1 F6 t; n/ B( l' H
let i 3$ O% |6 Y& z8 ?0 h: t
let sum-time 0" S0 x6 ^& }. L8 \: K% X" ^
while[i < trade-record-one-len]3 l! r3 u# |6 @3 H. }7 d
[
. o* u+ ~% w% Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 }5 _+ B2 ^. `# c% C3 rset i
% b* V% j% J# }9 P3 ]: u( i + 1)5 }) \$ Y$ \4 l, M
]
+ t% L: y7 T3 T* ~9 r' }' K( Olet credibility-i-j-l 0
+ N7 P$ j+ Q* l6 V! K3 s;;i评价(j对jl的评价). @+ D& M; U/ h" V2 o
let j 3! k5 N& W$ Z F9 k& t
let k 4" W. W( z: c# ^' ~6 V, f' H5 s
while[j < trade-record-one-len]7 i9 Y; t W: h, v" v$ H
[
- {# R1 @( I7 R4 ?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
/ Q0 g8 d$ Q) J8 d3 _2 Iset 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)2 P+ Q' K) Y1 C/ U: O
set j
% f3 v, p# m7 g( j + 1)
; I" f2 C5 N5 d0 ~: W }. P) C; S% g2 F]
+ n6 Y1 B$ ^( _0 M" y4 k3 P$ {4 ~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 ))9 M. k* _- E" L
' l7 U. g) x/ J) U
+ C1 S+ T# U4 {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ y$ Y- q. W; K3 I2 r;;及时更新i对l的评价质量的评价/ O$ N) h6 R: K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- B2 f4 L/ K/ ?. F! q8 |& y4 r6 d
set l (l + 1)
4 h8 g$ g" w* k" \. N; z6 Y# }]
3 Y" e" S% t% Fend
9 _; S. r3 j% H7 G
2 v3 x5 q8 }/ B9 _( gto update-credibility-list K ~$ Z2 _; e$ ^8 u
let i 0+ K% D& o; t: A7 k
while[i < people]& T) m/ F6 o# X3 N6 G; V9 p
[
4 S9 ?9 x5 w# Z- n4 `, Nlet j 0
& ^, |' \: K$ m$ ?" Flet note 0
% W# T% ^; b- y# p4 g# ?- Wlet k 0, S" G: _# v" `. ?7 I
;;计作出过评价的邻居节点的数目$ M/ ~, d: {* W6 n8 W' f; M$ E
while[j < people]
: |$ X: h( n. Y8 v' u[
" L4 r- z3 C- u5 v2 ]. Nif (item j( [credibility] of turtle (i + 1)) != -1), b- c; J m% a
;;判断是否给本turtle的评价质量做出过评价的节点
) W, g9 @ U1 r i[set note (note + item j ([credibility]of turtle (i + 1)))
! b0 ^0 S1 Y0 {! f) o" E9 C;;*(exp (-(people - 2)))/(people - 2))]- E8 M' i5 b5 z4 _4 N
set k (k + 1)
) j2 p6 q! J7 i" J0 K]
$ G) z$ |- p2 A( T/ R7 D2 E- i. Dset j (j + 1). j7 i! b* }7 _
]
6 |- l( ?% Z ]4 Y0 i' s9 Vset note (note *(exp (- (1 / k)))/ k)
# G/ ]! a, \+ V0 s/ lset credibility-list (replace-item i credibility-list note)
/ h! C/ C% u6 O: J: Hset i (i + 1)3 D0 w) h/ Q5 W5 Z9 [
]
5 ~8 F% w3 J* mend+ i9 n+ w. I4 d4 U( `
* H" ^" M" ^9 S2 o) x+ W) mto update-global-reputation-list
( D t. N' U8 G( Mlet j 0
- |8 n/ P M! Rwhile[j < people]
$ Q# y* F3 M' d8 w1 ]7 }[) ?/ B+ W8 s i& I! b
let new 0
4 v& O7 O3 P# h* d% t9 o;;暂存新的一个全局声誉8 f- }5 k! }2 f7 i- G5 x$ D+ I. b
let i 0. I$ Q8 v$ c/ D2 R& w
let sum-money 0/ V$ n6 ~2 ^6 ]) M
let credibility-money 0
0 i0 T8 W& q* C* y! n) [while [i < people]3 C8 W: y7 O8 K0 o; e5 |0 e! u5 u0 m
[$ L' U; Z7 v- u* z+ d* @, _# m: a$ _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ K2 D4 ?3 \! t# C
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- U1 G# I: C( G* I+ i
set i (i + 1)
5 x! s' i' _+ g! H$ E]' i2 m6 X5 ~3 D7 l' E c
let k 0
4 j8 I3 S- J& D; a( Flet new1 0
" h$ E6 g5 S p: {while [k < people]( p, W0 E) s$ t" j
[7 L1 V. P/ g# i( L7 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)! \, ^% @& {* G9 T& K7 [# `! F
set k (k + 1)
9 D- M! T+ w7 v% A4 s- Y]3 o: p+ o# B3 f, I
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; g+ f6 X) V4 e
set global-reputation-list (replace-item j global-reputation-list new)
8 S1 l0 h! n$ b+ u' nset j (j + 1)8 x0 P" O3 ]& a$ q8 q/ _; P
]
, ~6 | b0 |+ m2 [4 |+ C: L- Dend
+ N$ i! V& i" w, F+ W' ] I7 a% w, C `
5 M" s# W* d) x4 C i( a( w0 e
- D0 T8 r8 E- u% Ato get-color" x8 L% {0 R4 d) }4 e& ~
: d: u3 T- p+ ^# t# x
set color blue
7 N( `6 B# E" x9 S" i9 b5 O& Lend r; @. u: e" N
. f& V y8 ?0 n0 k. D2 uto poll-class' m/ F. K0 f2 f% y/ Z9 @# j
end( T6 |# c( A3 Q- p; ^4 f
$ k5 ]6 W7 I m
to setup-plot1
' b6 W" m2 E* U* A& V2 I! T9 a' [
, q0 k3 L6 T, ^: l' P$ \set-current-plot "Trends-of-Local-reputation"0 b# p) A2 h3 u3 A) U
/ G! I' W$ ^/ F1 }# G0 fset-plot-x-range 0 xmax
6 z; x5 y. m5 b
/ x3 k! O* c- P4 Q2 pset-plot-y-range 0.0 ymax" K8 D: T4 N( _9 A% ~' I+ ~
end
9 a. U/ t6 L8 E1 S2 R1 y. R. @* S9 w# i/ J3 v4 [, A
to setup-plot2
/ r: z( U/ l6 A! d, A% i
7 B; p4 o: p$ Y/ qset-current-plot "Trends-of-global-reputation"
! x' h8 L/ a5 e% s% P
1 c# y! g( Y! ?1 Dset-plot-x-range 0 xmax
4 M' a* V% ^4 a x/ E% C2 d
& d+ n" E( O; Uset-plot-y-range 0.0 ymax
. G% S& ]) I v# N) D ~& q4 q/ Tend" q7 E* u- C/ ^$ V) v
" K8 o. I5 ~( \3 m& gto setup-plot3
$ w3 }7 j3 {" O; Q
7 l" \3 g" t4 E0 Vset-current-plot "Trends-of-credibility"
! f g; L* j4 z: c; n) H% u( L1 M- ]0 ]0 w, N4 W9 a8 N7 e& n
set-plot-x-range 0 xmax
, n; k# I% ^7 I3 W; @7 z6 N. h/ p8 C3 d+ k
set-plot-y-range 0.0 ymax* b' a) q" d& L( t$ V
end2 t2 K m) \/ q; o1 i; Z$ n a% T4 n
7 X5 |1 r6 o, ^5 S1 w6 ^6 jto do-plots* i9 {% L! T! i# t
set-current-plot "Trends-of-Local-reputation"
P% G3 U- R" D: P2 w6 O: vset-current-plot-pen "Honest service"8 d; N% e5 ]$ `) i# Y4 i4 J( V4 E
end
+ d' A( R8 |1 O: Z6 T4 a5 e: H$ R( m: g: {4 m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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