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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
| K3 |! C8 a% Yglobals[
; R$ g2 F! U9 v2 g9 U6 o0 Yxmax1 o3 e/ X# [& f0 e7 ?% D, F
ymax# O! @% P& M5 W8 ^* g) j6 z
global-reputation-list. D4 W9 @' G9 ~, [5 _
5 T9 M" K3 p4 Z' O {
;;每一个turtle的全局声誉都存在此LIST中$ N; z* I6 o. W/ n4 {4 w* X
credibility-list
1 U4 W5 Q9 s# d+ h# x$ E;;每一个turtle的评价可信度
; A& ]% j& _5 s8 j, U8 Bhonest-service) y* R4 D$ o& M0 W
unhonest-service+ ?* v" G8 S0 T/ J0 G+ v
oscillation$ b5 V% g$ B, t
rand-dynamic$ p* A' j. ]* H/ I4 y
]/ a. K6 a0 i! p
' g( X8 V$ X3 b1 F; S7 _turtles-own[( ^1 }6 }6 w& G6 y& ~9 D, O. F
trade-record-all
# X: C' v9 a+ ]) @;;a list of lists,由trade-record-one组成9 B" C4 x% c, q0 K
trade-record-one0 J8 x5 y- w: r- w) x. D
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 \. ~8 ]! w6 Q; {# L- g( j; i7 j- ]7 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]]
2 y- Y) {5 Y1 X$ N/ f" s) [, Jtrade-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]7 i& s% \8 b/ i% |. H' 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list
' \9 l& p# t* W. Tneighbor-total5 ~3 q3 D$ F- m8 y/ s, A; I/ O
;;记录该turtle的邻居节点的数目) Q6 R: Q( I$ @$ x' I
trade-time
j* s- Z) D: Y- E; I0 l6 n* a;;当前发生交易的turtle的交易时间
$ M6 s4 }$ {2 p' Tappraise-give3 g1 H8 ~, k# {0 M: ^ L- S
;;当前发生交易时给出的评价7 r3 Y) F% F# U3 }1 {
appraise-receive
9 p9 E7 l1 S: }! s. n3 ~$ z;;当前发生交易时收到的评价: R: W/ o% q9 u( S4 ]
appraise-time ]* |, M" e& I# x
;;当前发生交易时的评价时间8 e- m, V7 K2 q- d& D* z5 j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 L, f' \" Q8 f1 T4 b/ w8 h" a
trade-times-total
9 I8 } F0 d- v;;与当前turtle的交易总次数# L6 g9 ]3 g" g$ k" ]
trade-money-total7 R- S5 ]; T+ ^
;;与当前turtle的交易总金额, p- ^8 R. ]) [; o6 ?6 E
local-reputation, \+ M3 `& r+ ]: [3 d5 d* h
global-reputation! w2 P- g( x( M
credibility
2 C# R5 I7 ]5 I* W5 {, p- O$ M;;评价可信度,每次交易后都需要更新" o' n3 Q6 f. `- @; K
credibility-all' l' f/ ?; a7 V1 a! e
;;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
7 X+ A/ j$ i# Z7 c8 g9 l
; R" m; g% j# H4 N' e1 I; N" 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
! N/ t0 b5 O1 R' L! l+ s9 ~credibility-one; V P0 _/ B/ a; j' ~
;;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
, P7 A, D7 j' T- s; w, fglobal-proportion
+ [' u& [+ b' k# A) _) \& fcustomer
. d8 ]1 ]; \6 u' X" Ucustomer-no
. e/ h0 x5 B1 }2 htrust-ok
/ d" K1 u2 O, C( Atrade-record-one-len;;trade-record-one的长度# c& V4 \, g, m2 D
]* c2 I j& B% \/ S! U
7 }5 z4 G- Z4 X; m3 q2 e H;;setup procedure3 | x( o) D* I" C- o# w @7 L
: B/ ~- z) x8 A: U6 {9 Hto setup
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7 j) G* k0 { ^1 p' P* v. Q! rca" D# X9 d' y7 d# y3 y1 i9 b7 w' {
5 X: i& o2 n0 ?0 D
initialize-settings! ]" P2 D4 \& }6 f
* m+ `- k8 p3 \" X4 }6 A
crt people [setup-turtles]' f4 ?, x6 n3 q4 V1 l3 M7 Q& a
- \7 O. W0 P. E8 Z; O
reset-timer
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poll-class
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setup-plots% c* A( Y( h1 i: L! f# c/ H( k4 G
8 B( k, R" w" U
do-plots5 g) i7 h6 s8 e# S- u
end
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to initialize-settings8 l* Y; k: o* u/ f
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set global-reputation-list []& g, f# h% ?" o9 S
: M4 V6 {" L0 A' C, Jset credibility-list n-values people [0.5]
7 @" I+ i( R- E% j
P5 K7 n6 @, mset honest-service 0
% R$ r% F, I7 L' C
+ F8 b, `, S, Eset unhonest-service 05 ]0 I5 J: }; P" @; }3 p ^/ f
! E) Y; [# g! `1 v1 _' X4 Wset oscillation 0
. y3 T1 v5 I, r' n1 | F1 X. g( o L) ~* C* D% [
set rand-dynamic 0
4 e/ t- v7 ^: c7 }! _end5 y. E! S5 ~2 M+ y. I- T2 a; L
2 V: N* v: ^" ] M& s" ^* xto setup-turtles 5 b- I. K0 o9 a' y/ X3 }$ X6 f
set shape "person"! d* q2 {6 w2 D' q/ i
setxy random-xcor random-ycor
+ u) ~( e- i' R% pset trade-record-one []
5 I T! y. R4 ~8 A$ L8 z' p+ v8 W& z' s& a6 h0 k* B/ c: @
set trade-record-all n-values people [(list (? + 1) 0 0)] . S2 ?/ R+ T/ f2 ~3 ^* @6 K! t: g8 C
8 C% H- F, h7 t8 j( B/ U4 U/ K4 Mset trade-record-current []1 C$ S) }7 ~4 c1 _4 V* A& R
set credibility-receive []
) }( ^( j' X: {3 i. D! B( Dset local-reputation 0.5- g/ i: Y5 k1 f/ h! R
set neighbor-total 0' d. S9 \# a4 m L3 M [
set trade-times-total 0/ _$ q2 [+ Y) U3 p5 B* M' W
set trade-money-total 0
_* w3 s. W3 }set customer nobody. O; ?* W. X5 A" d2 c$ ^4 Y j5 B: w
set credibility-all n-values people [creat-credibility]
8 @2 Y5 t4 i3 lset credibility n-values people [-1]
: ]2 N; m1 J9 e8 T" W& Rget-color& ]* L0 I8 s0 L, U/ I0 |9 B8 B+ @
4 u! H0 s9 Q* ~9 K) S, C0 Yend8 ~$ ^. F- }3 ]9 ~- u
5 B0 A# A6 {6 Lto-report creat-credibility$ f E; n" j5 o- D
report n-values people [0.5]
$ e+ x1 {' e) C- R( a; H# bend% F+ W7 k/ |* }
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to setup-plots
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- J$ b0 Z0 a/ b( O: @+ i& tset xmax 30
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set ymax 1.0
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clear-all-plots1 e+ S+ E0 D2 z0 @" v
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setup-plot1. [- ?- v1 }4 b" d
3 C7 b6 }. e6 l5 Bsetup-plot20 C0 R* F) {7 K
4 m/ u/ Q* D! u; isetup-plot3
& _- k9 L4 v, A& cend
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& o/ N/ X. A' a) W; M/ b;;run time procedures3 l1 n( E V" p b8 s
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to go- `: h4 \# ^2 t( J N/ z
8 P L1 M0 o, S% L x; ?* nask turtles [do-business]
! A' s) d0 K) J' f- X* }end7 U; H! }+ y5 q! `
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to do-business 5 p. J% y' F) `- q. q& e
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7 t* N# V% N5 N. p7 ~1 k) {/ \rt random 360 s9 G" ]' [# u; G) O6 V
' V9 M- t( x$ L! ?( O; Dfd 14 y( L7 t* ? z" L
( x6 Y5 l; U. \1 pifelse(other turtles-here != nobody)[
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1 Y$ N( E" @$ r8 j; J3 a% U' tset customer one-of other turtles-here
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;; set [customer] of customer myself! z0 W" ?+ h ]7 c
/ C8 v, F6 {) K/ v% J" hset [trade-record-one] of self item (([who] of customer) - 1)) n! P3 }+ W/ K8 I" m9 n
[trade-record-all]of self
4 C; U9 s! r* n& Q: L/ u# z# d# ]& m;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% a8 f5 k8 X5 }# j' X4 H
2 T& o4 z: u; h, M$ N' sset [trade-record-one] of customer item (([who] of self) - 1)
2 X a# T' c$ t* H" y7 W[trade-record-all]of customer0 W! ]; p G2 @ o) ^
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]1 [% U) O& ~. _" g% z7 ]5 A
;;先求i对j的信任度4 x6 T2 n; G0 W8 }: l/ A2 b
% K7 G9 G2 C& d
if ([trust-ok] of self)
3 D9 M d9 r3 |# o" d$ S! z( W;;根据i对j的信任度来决定是否与j进行交易[
0 q. ^, }: d2 ^ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# R# F# z- n- U
j; Q+ @. t% g2 E/ @$ F[
& k( D) S, h4 D; E5 z& t v- j, J( }. q/ o: Q. G$ W; H+ B- }
do-trade' q n% J6 D& D+ I p
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update-credibility-ijl: T7 p& a5 w& F# W
+ ], a- f! b. t- Pupdate-credibility-list
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2 Y2 o1 m6 m( J0 D5 d, I$ d8 u
update-global-reputation-list% x$ s8 k# {6 O! J, E8 r
% ?. a) ^) T8 e; P6 |, l! Hpoll-class
& e ~& y& }0 F8 A) f/ C( U" w* O; d- t1 h: l* i
get-color
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- R7 E- S1 m2 _& Q1 O2 d]]
3 |6 I1 O! R, O7 f+ ^) b% ?
/ G9 ^- Y$ v8 g! i8 J;;如果所得的信任度满足条件,则进行交易
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[
( x4 P' ~, U8 `, ]
, E7 @3 _' l6 ~# l7 q5 Drt random 360; n2 F( Y( p& N- c
& O& g. y( R9 R
fd 1, Q# ]9 h# ]4 ?8 A e h
+ [. ^4 e: j! a]/ |/ P1 u9 T, e; B, t! v m
( ~& c6 x. f8 r1 a$ o; `end, s$ z% i$ e- M i) V4 n t
, N) Z% ?' s1 G+ n8 S( gto do-trust
" E2 y6 e; J9 Q6 y: Jset trust-ok False% ~ c- }0 X$ M+ i7 w
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% K8 H( j$ h$ s! ^
let max-trade-times 0
" H5 f- x- c3 L6 Q1 \ nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ L; u3 `8 A/ V8 E5 p/ _let max-trade-money 0
+ J$ K |6 N1 k' X/ \* Tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 j$ v9 @( w6 C3 Z1 e, w6 O% tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). d; R( S/ T% w1 I" i- u+ m4 e
8 K9 t# [ u6 x- K! k6 c; l V8 w* i/ l: O1 C" a% o* |
get-global-proportion
1 }' \9 j+ N# D7 _: ~" glet trust-value( [# `* E+ S2 m; x0 C* q: i0 t8 i
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)% o3 h; _2 C) q3 Y/ z$ }7 Q
if(trust-value > trade-trust-value)
- _, A8 d' c! @7 L+ F[set trust-ok true]
+ j& k$ Q/ B# d! u# h) Zend& V0 |: w3 y+ U. A8 V! j
9 W6 J/ h: s, n+ }9 Cto get-global-proportion
/ D% r! w0 [3 z/ @: ~2 q/ h. }ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) F$ ~ E( c6 H# n) i6 p' I
[set global-proportion 0]
/ A$ \1 _2 {+ C$ e% m. W6 i[let i 0 K s+ f! @+ H$ t$ Y, [
let sum-money 0( l7 i0 |9 s9 ^0 A9 u
while[ i < people], g: e, L. I. O& f
[+ q0 Y, T- Y- ?/ m2 j5 |+ v' L
if( length (item i
+ v2 S+ s, e5 t1 {2 T[trade-record-all] of customer) > 3 )" n5 `. {. w# |8 F. v
[
) f4 h v1 e6 ?: E7 _/ Eset sum-money (sum-money + item 2(item i [trade-record-all] of myself)), m9 x" D m! }1 ?% [
]
; x& q# ]9 g3 E]$ D, B n b+ p# y1 ]
let j 0" |9 N8 }, z5 h' p
let note 0
) @0 @/ v O6 s: u& dwhile[ j < people]
' u$ J" K# h& t0 q$ x' ]. m[6 l. n& M' [, ^$ s1 Z
if( length (item i
! C7 ]0 i) f7 `8 c. l: N" {( G/ p7 {[trade-record-all] of customer) > 3 )3 Y% b4 ?9 M8 y6 x# u
[1 n0 e+ t2 c6 K! X# ?( v; y8 ^
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( X/ v- l* s; P( A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 x9 I/ n1 m6 ~7 a: Q: _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. N. a. Q" c1 M]
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set global-proportion note
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9 ? D8 d" e% [5 o) f1 vend5 o" v) x% w% Q3 M( x5 U
: \; L: |) m8 T* U- E' B+ c, c
to do-trade
7 S* |+ y3 G" F+ G% t;;这个过程实际上是给双方作出评价的过程
8 N, Q! [8 Z* D: v d0 mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 D6 ]1 }* s% v9 ~" R V1 X# x0 P; t5 O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 B4 I* j% F. R9 p, h1 dset trade-record-current lput(timer) trade-record-current. u/ A& q. u6 _6 Z
;;评价时间( t1 R& o8 H) d- |* e3 a# m
ask myself [+ t/ G$ _; Q" K3 g
update-local-reputation. C2 v8 I; z5 d( ~( J" G* D
set trade-record-current lput([local-reputation] of myself) trade-record-current- _! n1 {7 k" U. ? C/ p1 M
]0 [- S* Y9 a+ `: U: z; {7 X
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself c* b2 e! ], p2 r L
;;将此次交易的记录加入到trade-record-one中
, Z% ]4 @7 T+ p. J1 Sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 R z$ z' I: t
let note (item 2 trade-record-current )1 J: W( [9 m; v! {- C! B8 V
set trade-record-current
: h' H0 F7 E* o" Y8 @(replace-item 2 trade-record-current (item 3 trade-record-current))6 u" G+ U. d3 ]# ^
set trade-record-current4 Q" S# C; W( t( v- z/ O* X
(replace-item 3 trade-record-current note)" |. N! E$ s6 G' {3 w3 h! s# l/ d$ |2 R
) S9 m3 s9 {$ F* T/ m3 O7 b3 `
' r, {, U& W7 K: V$ k
ask customer [
7 l+ S O( n- dupdate-local-reputation
2 k8 A8 [0 ] n+ T0 {# g& P6 bset trade-record-current1 {6 S2 P, \4 j c) y- N
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # g! e! Y. d$ Q( U' P
]$ {% Y! G7 A( r4 j4 e
5 h$ S4 H+ r' ^2 K
- R6 X+ F/ n! zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 u0 I* T6 {1 h
7 s- P- a# f' I$ C" X! Lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), z4 \8 A+ V3 r2 K9 A9 b y8 m: L
;;将此次交易的记录加入到customer的trade-record-all中0 f4 Q1 k' B9 N. C( M1 u
end
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: o3 }7 T- m1 j1 W) q2 |to update-local-reputation& N( Z; c8 k. ]* ~) U
set [trade-record-one-len] of myself length [trade-record-one] of myself& p5 d; M4 R" S) }
o+ f m% w( E$ n, Z9 i
) c, ^3 h6 M6 s( E; S" t
;;if [trade-record-one-len] of myself > 3
. L& L7 Z3 R9 i3 nupdate-neighbor-total
" Y/ q% m& c8 w: t;;更新邻居节点的数目,在此进行
, Z' c, p5 y/ n: f# ` X5 Clet i 3! y2 m5 p# @* G; A! C+ O
let sum-time 0
3 ~7 ~# A$ w" Ewhile[i < [trade-record-one-len] of myself]* V) O9 `- v; V k$ p) l0 B* s# |" c# w
[
4 N( H9 Q. f; U5 C s! nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. ^6 V! c2 O$ T: H$ }! x( H% W: s% vset i' u, ]% v: r" v& S* L. {$ N% ^
( i + 1)
' r( _( l! b# j% @0 [0 [% e]
) V- k1 D! x/ W, N' V) A7 Xlet j 3: Z: Z# r6 ?* y8 K `
let sum-money 0
, L3 u, ?: O! _while[j < [trade-record-one-len] of myself]
; Q( {- }9 M% Q6 }# O$ j[9 P9 l9 h: t: k' R+ Y: V
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, C8 u0 x- b1 }
set j
/ m. ]% F5 y2 X* l4 z1 e( j + 1)- ]) S; a- ~0 k. @ l, m* z$ d
]0 Y! M4 M% s6 f9 F
let k 3
8 m6 X9 F, \9 P; q. ?9 i* ilet power 0
( w) Y0 z2 d3 J. Z mlet local 01 p0 m+ D4 g- B0 G$ ]6 j& m
while [k <[trade-record-one-len] of myself]
Z7 V7 x4 _$ \; Z4 x- t8 l9 m[1 S7 q: q+ g" t. V& Z- i
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' a8 f6 r: l) e. Bset k (k + 1)
8 g4 r" C5 `2 T0 w. q1 ]2 s( Y6 `' n]
1 r9 S9 }3 K; K* H: n7 ^set [local-reputation] of myself (local)4 ]( v' n0 ~" b# P
end4 V7 V6 A6 B% H0 q; A0 m
7 v+ x7 [7 _) k2 [! s
to update-neighbor-total+ M, @- ` J% h- M0 ] e
( F# @. U4 [3 O; N) s4 y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* N, f! k- P" Y, j( q- x
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end
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to update-credibility-ijl
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;;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。) y# T8 ?3 e4 \# x& p. H; W# Y4 q- ~
let l 04 h3 z0 B6 s s0 A% v; V& {
while[ l < people ]
$ ]" t3 d- `: v! h8 ?1 j- |;;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
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, |' a1 K" v0 q% j; Llet trade-record-one-j-l-len length item l ([trade-record-all] of customer); j! g7 C+ h8 z: F
if (trade-record-one-j-l-len > 3)( T- R9 S# ~) v# i6 q0 ~
[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* G, T, O$ G2 s: R/ N: }/ v. L
let i 3+ |1 N P; G1 c" |: V& z
let sum-time 03 u6 `+ ^$ X/ f; ]
while[i < trade-record-one-len]
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+ g: G" Z7 ]7 C' }# w0 N* ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 [0 {2 d0 z1 J7 |
set i3 A9 C* j) f; D E$ a: c
( i + 1)
( u; S- H1 F4 A* V5 ?8 H5 M* a4 ?]
3 P( ]2 I) a" Xlet credibility-i-j-l 0
) r8 {7 d% H& G5 z;;i评价(j对jl的评价)
3 W! F1 w( l, o9 V+ y5 P @* glet j 3: G/ o$ w, {" G! u/ m4 N
let k 4/ T/ |& E; O" @5 }
while[j < trade-record-one-len]
; u& i0 F6 C# F5 X) T# p% B[
2 H+ Q$ A) \0 ^3 J1 L1 t2 qwhile [((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
: O% f9 ^; x' V2 V" P% T. oset 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 Z2 E) H3 M* d' d. ~set j) I3 @( p: j& A! L6 \3 a! u0 u
( j + 1)7 f* O' A; s8 F% n$ m4 e
]+ p% L+ w ?% p: Q' H# v8 l) C
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 ))
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" T9 D2 E# ^( O# O% ^
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# b- J) U4 s5 G9 c# H
;;及时更新i对l的评价质量的评价 ^. B q( i0 j7 X7 c/ t- |' P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# A$ c! L9 j3 [: c# i6 r, A8 Oset l (l + 1)
6 b* J* W$ t( L]
S4 k8 {, Y: X+ i8 M, ~; B/ T- Mend
. v- B1 j! a! r2 i+ t k n! K+ v$ D; p. _. p
to update-credibility-list" I5 l s( n- m0 n k2 B; _
let i 0
' M- @3 y4 [2 E* Y. D0 L: a/ |2 Uwhile[i < people]9 A' M+ B, |7 [0 T
[" ~0 G' }4 [/ _3 \) f
let j 01 g( ~1 l+ N' f
let note 0) E8 n3 q. Q6 F4 F1 p: w
let k 0
' M% S$ g" t. {& a0 O6 Z;;计作出过评价的邻居节点的数目
5 J G! b' Z Q) gwhile[j < people]
. B! q/ J R! x% Q2 _[. N/ w5 o. ?* l. z D
if (item j( [credibility] of turtle (i + 1)) != -1)
. {" o1 g- M' V7 K;;判断是否给本turtle的评价质量做出过评价的节点7 A$ Y6 ?7 M% |
[set note (note + item j ([credibility]of turtle (i + 1)))
3 C# u1 V! Y0 x; k;;*(exp (-(people - 2)))/(people - 2))]
, D, e; ]0 P2 M! e9 Bset k (k + 1)# h8 h, _0 z; _7 F9 L2 i: ?
]
! v2 l1 D1 `4 y! d) x4 w5 Mset j (j + 1)4 f. M" W" a1 g9 n+ f, S1 [
]
/ v! e6 C; n# jset note (note *(exp (- (1 / k)))/ k)
( B( A% ~. i" w+ M# r; dset credibility-list (replace-item i credibility-list note)8 I( b/ A& V/ k7 Z
set i (i + 1)
6 D2 ?& Z) D+ S2 R] u$ q" h4 G Y" w1 m
end
; L0 i9 Y9 J U) d( W- J5 Y- t) ^( x9 ]: z! p( f( l1 r
to update-global-reputation-list5 F/ Y6 I. u* \% x
let j 04 m2 T: J) \+ ]" x/ Y
while[j < people]
' t- s1 l3 k1 R( x- S. |9 k[1 g# P% G/ o3 j9 H% n# Z' k
let new 0, a8 e. P; e2 R$ m. M7 r2 ]
;;暂存新的一个全局声誉5 I) A9 W, ^0 U: d. P2 E
let i 0
9 Q+ |' A; `' `( g/ |$ d6 f- Flet sum-money 0
% {: c) U2 f0 x9 i8 Ulet credibility-money 07 ?& K) ]7 O# V" j2 R9 k
while [i < people]
1 \0 O7 H$ }2 ]9 [: u# [2 g[
" G" A0 K" [- Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* E) B. D4 V6 `$ r3 Rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 h0 o0 b* b2 ]! |, l, G, B
set i (i + 1)
P, O9 ^& S$ W* Y# C5 e]2 U G' R n* z: W, g5 w
let k 0
$ z, i1 a9 m/ l4 K6 E8 m3 rlet new1 0
# A! n3 r2 s3 e- F% N- f- P, C( Fwhile [k < people]( ~! P; b* o" Z# ^
[" \7 u" e1 E5 J" I) n6 n/ a
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)
% S2 e* `& o9 c! x3 s! b6 V& x: O% mset k (k + 1)1 l& @4 m: I8 @( E' V
]0 ~( F, B- A I4 |& A s3 R: o
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 c3 t) q) ?4 C1 c z% {" X0 jset global-reputation-list (replace-item j global-reputation-list new)
, C; F) s6 [) v/ W( uset j (j + 1)) g" i# k. O& t8 U+ K' `( y+ R
]( x$ T4 w: U: T
end: l3 a7 @/ q. P, |- m9 R5 C3 c% Z
6 F3 }$ o/ J5 y" J
2 b* `" O5 V" `, K; D2 x# |) T% n% N; E) Y
to get-color" W8 q: o7 r+ \, x8 n- R
' Q: c; e8 D) F+ d* R8 P
set color blue
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* H& m7 D) h. q1 g; u* t! o2 p
to poll-class
_3 e8 M5 W) w) u2 @/ eend
- O2 i( e& Q' X% M/ Q
2 ]" o8 ^6 Y" G. P; l$ u- x7 g1 Fto setup-plot1
: _: \9 L5 _7 Z
. t8 t6 A+ e& j9 C$ yset-current-plot "Trends-of-Local-reputation"& v, {9 B) }( R: R
$ `2 [" K, Z# O! z
set-plot-x-range 0 xmax) N1 b. U( ?- O: c7 D
! H7 N7 e( G( y- b3 q' Jset-plot-y-range 0.0 ymax7 L- _) H; w; _9 z5 |
end1 n0 {& k7 ~( Y) Q0 y
7 j0 z6 D4 |" Pto setup-plot2
2 j& y1 q- r; A$ k2 [5 \( O
. y! ~, d: d0 @set-current-plot "Trends-of-global-reputation"
; D2 t% G2 d) P9 e, o( o0 s m% x6 |4 Y
set-plot-x-range 0 xmax
0 q! J% p) G7 R7 \. l) `4 B: U1 @" I1 p9 j8 n. ^! `5 t; S
set-plot-y-range 0.0 ymax
9 ^$ _/ _9 I8 s2 Z/ x' l" Cend
2 H7 v% E3 A2 x+ a. {, K# O2 B8 S+ j8 u) g7 v
to setup-plot3
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6 I/ m" N; }# O/ N9 q: l! k4 @; E6 ^set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax+ d" f9 l- `! ^
, _# A+ L- J4 F! n+ ?7 ?, P9 ^* R( sset-plot-y-range 0.0 ymax
& y7 K U% S# b% {end! V9 @1 a$ l- W( M6 B
- r' D1 y3 W/ H. Gto do-plots
7 a3 m" Y! I h6 w- i: Eset-current-plot "Trends-of-Local-reputation"% }% l0 O! x) s& h3 F# r$ X
set-current-plot-pen "Honest service"9 |* w: M: f, Q+ W6 b t; h
end
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8 {+ _; X0 I2 E6 N8 g) J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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