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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
! k+ O' a# Z3 Y, zglobals[4 L5 t2 u& K& l, [5 ?6 x1 M/ N G
xmax0 g( k# C: j R, K3 N
ymax
% }, n6 T: a- {5 ]global-reputation-list' D; L* O8 J+ S" t; u$ T
3 e' R. ~- \- W;;每一个turtle的全局声誉都存在此LIST中
- I7 S! t7 _7 D0 r9 q8 acredibility-list6 l6 K7 F, ?/ V
;;每一个turtle的评价可信度, r& h; v9 Z. j) H- ]1 d1 s8 |
honest-service: V9 d2 R7 ]9 w. r: \2 i2 S
unhonest-service! p% }* Q# d# b! f% j7 Y9 y
oscillation! o% A, T& `9 p8 S! q- y& }9 O
rand-dynamic
% Y3 k: ^$ t5 T7 V6 s5 b5 N7 v], i. I8 ?, ?7 L2 o9 W' g/ a
! B4 }4 G8 Y% A: n5 ~, n* Jturtles-own[
0 j. R9 Y; z( c, H+ r: d+ O/ etrade-record-all
9 h( y( A+ w) ~1 u+ x N) t;;a list of lists,由trade-record-one组成3 _2 E$ n+ U0 `5 l% y. c6 O6 e
trade-record-one( y8 A! v4 y8 X
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, |8 P/ z; n: x) w
+ K7 l8 } q- x9 P' X3 R
;;[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]]
+ T, B4 L/ t7 X3 p& m B+ w9 atrade-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]
6 p2 i* d* g, wcredibility-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) ~) Z4 h0 q, q0 L# z/ K
neighbor-total
6 p' R" B! d3 h3 Z;;记录该turtle的邻居节点的数目
! R5 A' c( N1 Q+ V+ n e5 c( wtrade-time
: O5 t6 ?, M3 ?6 Z;;当前发生交易的turtle的交易时间9 r( e: e: P) r% ~
appraise-give
1 X; L6 O# }4 N9 D' J; `! B/ \;;当前发生交易时给出的评价# S) D* z+ u4 D [. n5 _
appraise-receive
; N$ j% P4 S3 C9 o; N;;当前发生交易时收到的评价
( r' B H" w+ m1 h, Jappraise-time) a& O7 W/ m# `+ Q' M" `7 a
;;当前发生交易时的评价时间; T1 g- W' D. p, o: w9 C6 S8 r
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: e0 K2 G, q8 z. e7 [+ q! A/ F
trade-times-total; G6 j5 H- f4 x3 _* `1 t/ F' Z/ d
;;与当前turtle的交易总次数, ~$ e3 R- z; Q9 w" R4 J
trade-money-total# N" ]" u7 p, I, Y2 y. |6 ]
;;与当前turtle的交易总金额$ ~- v% n3 N: Y7 d5 c
local-reputation5 W) u; H* ~6 z7 t. y [1 N7 T
global-reputation# ]3 S. h9 v$ V* E3 n" L, v
credibility* A0 g1 a' \* d! E$ M! N" E+ U
;;评价可信度,每次交易后都需要更新- N" N0 ~1 z, k: \
credibility-all d! d9 g, g p0 a8 V( ^' N
;;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, g! H/ r1 D: H. n+ X1 N
" K# @( T/ f2 o;;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
3 v. a) C3 L+ g1 Ecredibility-one! V' d- M) P7 V; ?9 p- u
;;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
F* `5 a4 g/ Eglobal-proportion
6 s3 Y: g- d1 |# n/ qcustomer3 d8 D* C8 Y m" C" c& _( Q' K
customer-no9 j ^6 e' z1 m! Z1 n) d C
trust-ok
0 V: j# P4 y! ^6 W4 q Ntrade-record-one-len;;trade-record-one的长度" n# e9 D! K& i+ h7 O) k5 |0 S
]: {! D; r7 h& w8 k. e4 d' _% ~* x( U
3 r7 E; R8 Z9 ?8 \
;;setup procedure
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to setup4 u: p3 Z& v" [' f
2 S" ]* ~9 C' I& F/ ^
ca
4 X% i8 M7 \" x: b' Q, \% T6 D0 V- C, U+ ~9 {* u
initialize-settings; w2 Q9 b6 s) x! k
( O+ q; x( x0 U9 l4 W% G
crt people [setup-turtles]
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8 V' o1 o6 q% e! ^$ Z' freset-timer
$ o& d! X+ M5 D/ h% g4 V7 b. w* [$ M
poll-class, y, \, \0 t, B, b/ n
8 w2 C5 p% B" f" ^1 s( z% Ssetup-plots
2 ]" j+ \$ \' m. H6 f' F! n- F% v2 s2 C1 K% M
do-plots
! K5 |2 Y" c- N' n E+ v9 fend
9 m# Y9 Z- p: ~1 F5 N: ?5 E0 M/ O5 {# N9 W0 D( j
to initialize-settings& C0 w/ x. U* H+ r$ y
$ q- E t6 s7 zset global-reputation-list []
% V* l* q$ H3 F' y
9 m& y, D3 Z. V. z" cset credibility-list n-values people [0.5]
1 e/ v* x; v! S, a+ j" P& o1 _% |, [8 x' y; [1 b8 g, R% D/ J9 F
set honest-service 0' }$ U6 z0 J' i, O$ X7 a* t
) T. R7 J' _% a8 @3 d# O
set unhonest-service 0
* f; ^+ K! O- Z `& }, I. [" f. {8 K; s9 _
set oscillation 0$ Z- a+ @( ?% w: m& c
2 |6 ]* t2 Y. ~1 E
set rand-dynamic 0; X/ C- y2 Z5 T% l+ v
end
# N- Q9 n% h, S3 _8 v/ ?
) c: [* j7 t f/ o" zto setup-turtles
$ V" X) w2 }- ?* Q4 E$ z! Aset shape "person"
# L% k; I8 H, E0 @ f2 Hsetxy random-xcor random-ycor
- U2 l" q: S1 ^) l& {& I" f2 Bset trade-record-one []
o# z" G; f$ n' m4 \/ A3 P# G
( N0 w n2 @2 N4 {1 iset trade-record-all n-values people [(list (? + 1) 0 0)] ' d! q- j, A& G, P0 l* p3 k
) W% h$ {! r6 u! D! V/ S$ Hset trade-record-current []4 z- m F: U9 \$ i# u l, i9 w
set credibility-receive []
1 m5 l9 E) ?8 S, \set local-reputation 0.5" G6 G9 ]$ J! o6 i5 {' d
set neighbor-total 0- U; R6 I i+ p3 A. E, d# h- d4 i, L
set trade-times-total 0+ K" O( Z9 ^$ g6 d4 ` _# Z
set trade-money-total 0
- n/ b a, I! H( Lset customer nobody
4 V& A3 ~4 F ~6 Y+ nset credibility-all n-values people [creat-credibility]( N6 ]3 T. ^! T; M3 d' o: [
set credibility n-values people [-1]+ C9 c# i7 ^( c( R" w1 ~# r
get-color3 H2 {" H: r, \
4 I8 Y% U+ K" f7 j
end
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# n$ j- i- d4 a# Q0 yto-report creat-credibility$ w- K: L) ~$ `5 V# o- G' V- e7 D) ]
report n-values people [0.5]
5 v, |8 E4 T Jend+ P8 v% Y, P* P: h+ S
1 t# }3 p4 v% A% C6 Bto setup-plots
' @; V* a2 b3 U: _/ p$ C/ l Y8 `+ C& ^- [( O% A9 |; h
set xmax 30
# W. l$ M/ R+ L/ h# h+ n/ h3 f
, d6 l4 p: ^7 A3 d. R. Y1 f) e( K/ L( i! Q! Hset ymax 1.0( E+ x; b, N6 H. B- L
7 a: J& h+ ~0 @' X5 ~) y
clear-all-plots9 q5 e) ~. B4 `0 S
+ p+ _, W, ~$ {; k7 Ssetup-plot1+ j& H+ X1 l8 Q
5 I' W5 F d/ R4 T' d) M+ m
setup-plot2& N3 C1 Y) {3 P* K8 X& ?6 k' P
; B ^% j' D( K- |
setup-plot3' U2 K) v+ r- F, S. v* N" S& ?7 E1 n
end
! {+ p6 J! A. q% ]$ H1 o
$ Q/ U5 l; J+ D# p9 i5 l;;run time procedures
9 T! s9 Y; `" T. S0 k9 j+ L$ j. L2 V1 {/ v, i3 v* `
to go' \9 k0 L# a) k) q
# ]) ~7 u: z) U" [ask turtles [do-business]. K0 j; I' h2 T; V+ l1 B
end! K# }8 E, F+ L t. {. |9 T
) r" m" X/ t' t0 j4 c
to do-business
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* {1 Y6 o* x( y3 k7 w5 L* I- W8 o$ j
rt random 360 N* ^, W2 w# B* [' w! P0 s/ ~
5 J* ^& ^1 a0 T* U$ |fd 1
- V8 T' O7 u$ }; V) l+ b& J+ g' C2 k8 C
ifelse(other turtles-here != nobody)[& o; b5 a. l7 I& z |* q) s9 h; g
! t4 w8 D6 k! N, V
set customer one-of other turtles-here
3 h# {0 X$ l2 o+ v
; O) {. }$ A& W: B# x o8 u% W- U;; set [customer] of customer myself) Z% T( a2 x/ y% W% i) C3 k
, a1 T( q3 {, K
set [trade-record-one] of self item (([who] of customer) - 1)
5 f1 g3 L: a( G3 m. p. h! \* p& c[trade-record-all]of self
3 p' }, [1 s% S4 z' p# e;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 P! p+ J' y2 w/ G. p/ |5 w& D/ S
5 d. p/ u+ G& S1 |4 c+ Wset [trade-record-one] of customer item (([who] of self) - 1)% l* \; P' \1 L2 ~* ^8 Y
[trade-record-all]of customer
# J3 S# {7 A" N/ b1 R$ B
/ F+ `" r' `. K* O7 D) `, Rset [trade-record-one-len] of self length [trade-record-one] of self
3 s6 {3 o) o$ B8 h! E
5 e2 `/ H0 v# D+ Pset trade-record-current( list (timer) (random money-upper-limit))
$ w8 X' e; t: @! ~4 @
: z( T" d! i0 H& Vask self [do-trust], m- \! b$ s8 i; B6 ]7 w
;;先求i对j的信任度
* F' F$ n7 q' f6 F. Q5 b0 {; o$ p. ?9 d8 b
if ([trust-ok] of self)( C# T/ a; r8 w. R4 y
;;根据i对j的信任度来决定是否与j进行交易[! ~3 C' @6 y8 Z* o' M6 s3 ^: d. Z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
# i9 ~2 |: V* Z, |
5 ^( ~. t: U F( Z[
, r' t! p( ~6 }& r
: }/ M2 c1 [, w" n2 f$ Kdo-trade- @! ?8 q* }2 S0 i4 S! A$ s
8 H& P; }9 p+ w! }% O$ b* I4 lupdate-credibility-ijl7 d# J; D$ [% ~: `, I2 Z
1 O' d) g" f3 [* T2 I
update-credibility-list7 n* R. W0 O$ O
9 f/ R+ W7 h* K7 ^" i; d5 l; {
" p* R7 i$ Y6 e2 j- Z4 ?update-global-reputation-list/ r+ T T( a! ?
5 A8 h$ b- {6 A0 [/ Z
poll-class
' f! H( h" r: U8 e' d" e# {
( r2 v, _ @: q6 gget-color' `9 d" [4 Z/ v: @/ v- E5 H! u
" c ]% e5 @1 h
]]$ p3 x4 l y8 W; ~1 H
0 t7 M/ U( L; _" z' p+ |;;如果所得的信任度满足条件,则进行交易
: w! [! {2 O$ j- `4 O7 J D( E! H1 |7 \8 ^0 |+ k) q9 n
[
) S0 q- d8 o& U+ Z1 p; X
5 S8 i: c2 }. G! ]: N# Srt random 360& @" d2 f/ g2 d' I* W, o
/ t- U i2 O! p( g5 gfd 1
3 b* m5 x. w% l7 o
( L) d1 M9 h5 ^]
6 j8 g/ v( U9 R; }3 G7 p% h6 H7 U8 ]# H0 s% o% @* a' b+ {
end
( ^0 w4 y. ^$ {6 h6 F
& m% C0 E" U* ]' O" Mto do-trust
; S% N1 ~2 c, u4 W! u/ Kset trust-ok False
2 J9 l) U0 Z# I h2 G. |% j) f
" T6 O8 J [7 j9 ?& k1 D6 M* j( e: F. c* i' `8 c
let max-trade-times 07 [* Q4 L# j, S/ l
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 D+ ~2 M! ^/ i k6 c t& S+ s7 q3 Jlet max-trade-money 0
9 X/ L. e+ J9 Q' Z$ T* q% r- {( Yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" k. X( Z2 R1 x1 v4 g& Q+ [
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); }+ M( J) s2 R" t6 F" |+ a
2 f& s. ?, n; k. w5 L, ]
) O+ D% H$ d% O5 S3 J' Z3 b+ tget-global-proportion/ G: j5 J7 F6 j9 f( y0 e: C# F" ^
let trust-value
* \9 H0 ~; R( ]& ]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)% Z4 s& z8 j8 r, c4 N3 K
if(trust-value > trade-trust-value)
: W" a1 v& ^& u- f }[set trust-ok true]" w# ^- w+ L0 P2 |1 i K/ }
end7 q& L l8 ]4 w I8 |9 h- _
. [& A* B6 V! B; m; x cto get-global-proportion9 }$ O/ F4 f( E# E8 T+ w+ M0 m
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* M8 `- _$ i9 P' K, G
[set global-proportion 0]) W( G9 ]$ E' Y4 R$ W9 S) K
[let i 0- G- w3 v, \# h; r3 l' h
let sum-money 00 q3 H& \- E6 A0 N
while[ i < people]8 k, Y" D& [' t2 v
[
: g" N/ q' _4 p+ H1 Wif( length (item i
* A; [8 e# [2 t2 p; C5 {7 |[trade-record-all] of customer) > 3 )
" y1 \$ e" P% ]9 Z) f4 L2 X( J( w# n[
! d E2 U7 k0 d- q) O9 rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ p. ] c: Y! F]
0 {/ W# o: k4 C( @+ O7 M3 l] \9 M3 V9 P$ s5 U A" n
let j 0# ?; S+ r1 B0 d- y
let note 0
4 x# \- z. L; P- \while[ j < people]
3 q. V" x. M( V9 w) W2 ?1 g. o$ R[! k' y) Y( m2 c4 O% s
if( length (item i
/ p* V+ U- B5 `& h( e% o[trade-record-all] of customer) > 3 )+ O3 m, ~& Q0 }1 I
[9 w) ~ g1 B2 Y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 `: a; F8 x8 U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 V- _ Y2 X6 ~6 A* b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 d X. j: p! n( i% L
]
7 V/ e c1 \7 X! @/ A6 o0 i]- l7 S; U5 U5 A6 p$ S* s* f, M
set global-proportion note
1 j/ A* P- a, ?, P- ]6 S5 r]; ^/ N" b$ j! o$ {
end6 Y# e1 D1 Z# s
0 |0 j7 H8 G5 g( d) Y' v7 Pto do-trade
- e4 _2 I p4 r0 B$ B" }7 [ A) B;;这个过程实际上是给双方作出评价的过程
5 r7 a' W7 J3 J9 C! D4 Mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) `8 o; q# j. K3 y; Qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- ]5 {! V" N! f* Eset trade-record-current lput(timer) trade-record-current* _2 _1 z" n# ], \' p
;;评价时间
/ c4 n) h/ P" L7 w7 L) A9 sask myself [4 r5 U- U/ j, @" I8 }5 u- r
update-local-reputation( ]& P& g% V) R. R9 u
set trade-record-current lput([local-reputation] of myself) trade-record-current
& p" E4 N/ b! N, g5 Z' Z, M% \] |& b0 [% e! x, v/ Y4 k5 q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 Y! q" a6 n0 ], N( W6 c
;;将此次交易的记录加入到trade-record-one中0 F. b7 U3 {# X9 }5 Y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). `7 ]5 f5 J7 n& K' l7 M: }
let note (item 2 trade-record-current )9 {# ^) _3 p- _7 @( Q! P* ?
set trade-record-current
! s* p6 Y: Y9 @4 C(replace-item 2 trade-record-current (item 3 trade-record-current))
$ O# j$ j$ M s) I: bset trade-record-current
- ^/ `, ~ ]/ ]6 Q(replace-item 3 trade-record-current note)" G N/ ]* E" d2 M# S4 L# O4 _
# O" e5 N& K( \' H% d ~& v! }* J" e) v2 Z
ask customer [; V: F! r' Q. _9 T" W
update-local-reputation
/ R( X( S' i7 ^ R) a( ]% Oset trade-record-current
* ?- f& L' }, o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 @& v6 K( O/ F4 i* @! N]
( g5 n1 e7 t3 Q' ]8 s/ E' ^1 `) @- Q' @! ~( G! u" j
' T2 x9 o" X) T* N6 Eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, p3 x- I, s4 Z) J1 K. Z6 q8 [
3 A- E K. Q/ f7 zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 X+ r# W- o8 d5 _# l0 r: {% r% q;;将此次交易的记录加入到customer的trade-record-all中0 S9 Y/ ^; J; R6 y' w6 _4 E' B3 f
end
7 t8 e r3 o6 L' Z+ l( S+ L$ [
! q* b0 _5 h: _$ oto update-local-reputation
' A. | n7 W0 e3 `3 ~ C9 lset [trade-record-one-len] of myself length [trade-record-one] of myself
' K" V) I c; w$ M1 [/ w/ t# { c! [; [% v" n" Y
2 {2 j- i0 ~( X$ D6 l& e
;;if [trade-record-one-len] of myself > 3
1 [) D, Q6 P7 m% {) dupdate-neighbor-total1 S' u) r3 }9 q8 G/ g4 J3 `
;;更新邻居节点的数目,在此进行
" i; D, N: ?0 }2 _( m# {9 ^2 ~let i 3" S9 p, J4 V3 W8 k/ [
let sum-time 0
( s8 }8 D! Q4 Q8 W/ m6 qwhile[i < [trade-record-one-len] of myself]! q/ M; q: {0 a% U
[1 }& i2 I% f# m( l6 L. t2 `
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% z. ]: Y9 ]9 ? nset i
" |3 G4 V! {0 ^. ]: L( i + 1)
9 s- f! }4 _+ Z4 L, H* ^" c& g]
% g3 L' C! u, R3 N" q4 l ~' Flet j 3$ \* B) K" H: d* u9 ]
let sum-money 03 ^, o: q8 G5 K% d$ l4 ^ ]
while[j < [trade-record-one-len] of myself]" [4 `1 T! d( W- p
[$ Q: f1 M( }2 E" B1 }3 s
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)! D3 t" E w- O6 a
set j
5 M2 t3 R7 o3 g" k* C( j + 1)- X! y2 g- N p: O: H
]) X/ h- y. W' \$ B4 ^# E
let k 3
5 m4 N" H, w7 i; \let power 0
; s. W& x: e2 x7 C7 l% klet local 0
- r3 v0 h* E9 h6 ^, ]while [k <[trade-record-one-len] of myself]7 ?9 I; h6 c6 ?. ` r0 \
[1 ~- S* |1 ?# \! y4 C' C' a# T
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) ; \( A" }% I/ F7 @# H- W: l
set k (k + 1)
9 d; p1 N4 h! q4 h]
5 D1 y j" i( Z/ B {9 U0 s! qset [local-reputation] of myself (local)) R1 ~, d L0 ? a4 ~3 [
end. D" ?6 |% R6 J$ Q( D1 u* @& ]& U
/ u5 A6 M. i8 a
to update-neighbor-total
3 d' C; x5 s; | t& q$ N( ^9 _% k8 Q/ p& f* }8 |) a
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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2 B0 z& L4 f3 c* ?0 `% W9 V3 Z3 |# }& p
end
2 p% Q3 S$ a Q; j [% J9 m# h
$ K5 J) }# |6 q, u; C$ q$ Kto update-credibility-ijl
' u; N+ {# I: s3 _& H2 \
/ g/ F' U! r% R% P% z2 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。
. ^8 ^( d3 ~2 N- `3 e' t H3 C7 jlet l 08 z/ c# o! S- f/ q7 i! {/ s. V
while[ l < people ]' R0 _* s H9 w: `5 Q/ n
;;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5 \' x3 p% T+ `) Q
[3 e$ _& H2 M; s" r& s' U& ~" {/ u
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 ]1 w, C6 N( J) N( \9 [7 i% K
if (trade-record-one-j-l-len > 3)7 T* Y5 U/ l, p7 C" \
[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
* @. B `0 s" z' Q9 k+ t4 ]8 f6 glet i 3! N& ]4 {( x: Z. Y" ~& b
let sum-time 0. |6 g. V- A e! c- r- ^0 e
while[i < trade-record-one-len]
( X2 v8 [2 { z! }' [. [( h% l[
3 T0 Z1 y* k7 P! \% pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 U9 ^' V) i, L1 I* i" b( ?: B/ z7 m
set i6 @2 c. U6 u1 [5 U7 j
( i + 1)8 X7 ~1 w" x' R# Y! m* R7 {
]
2 D! \9 {) Z1 j8 I% plet credibility-i-j-l 0
! i8 m' l" U$ \$ r;;i评价(j对jl的评价)* X) R" f$ J! r
let j 3/ J3 ^: u! D3 v0 Q8 F3 \
let k 4
# s4 t) [, ?1 b6 X1 ywhile[j < trade-record-one-len]5 K6 ^5 ^' M3 S9 L v9 h
[, W5 w" U, _5 K% u
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
9 T1 |' D# s" p) Yset 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)0 J# P8 o0 ?7 H- b+ I
set j8 H) b! v# \8 U
( j + 1)
1 H% M- r' c7 S6 A9 T/ y ~+ {]
2 F% Z9 |4 m {/ 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 ))
! I6 E2 L5 I# m4 z x
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ s, j1 P4 J# u0 y g4 S
;;及时更新i对l的评价质量的评价
8 {& C P8 ]( X" uset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 W% P0 G9 a" Uset l (l + 1)/ |) D) a+ L0 _' D+ C6 i
]$ U, U7 c+ S& V2 X9 Q2 k
end) ?/ t2 S% W u! `
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to update-credibility-list3 J* ^# T5 C: i$ z* Y% u: }% B
let i 0
3 E+ z$ A7 A0 H2 i. \while[i < people]8 A7 Y, D% O3 j7 r$ \# m* o) n( u
[
, }& C) {6 Y& P; n! Tlet j 0' P* s4 i+ P* c
let note 0
* O; O0 }$ c% x* Rlet k 0" M1 I2 f, ?: g$ v$ |0 X
;;计作出过评价的邻居节点的数目2 Z2 a7 |5 \7 Y4 A# ~: b
while[j < people]
: G5 M- F6 ~: N/ U, F& M# H+ Y[
% M) a; i. n# i1 e7 _" w) ~if (item j( [credibility] of turtle (i + 1)) != -1)( K: c4 P8 Y3 o) `$ V
;;判断是否给本turtle的评价质量做出过评价的节点
/ N7 C' `7 T# z- {# u. ~[set note (note + item j ([credibility]of turtle (i + 1)))
% L* ?. L, x+ E! F;;*(exp (-(people - 2)))/(people - 2))]' a* A N8 I" o; t% V" L
set k (k + 1)8 r/ G; l# V% n) W; l$ m. S+ u
]' [4 V8 [- ~1 H" z5 j3 J
set j (j + 1): K: [( V" a5 [, O% \( l, }
]
, ^# n& e7 x( H% p/ v* oset note (note *(exp (- (1 / k)))/ k)4 w! G& V- U) V) _- J
set credibility-list (replace-item i credibility-list note)
" `# J$ g {& k! ~' Oset i (i + 1): z) r2 i7 V* w" B0 ?9 r; {
]: _) z* l$ f8 p' D
end
) }; G: Q- z9 U/ H3 h1 [2 B' [2 V( F' x, N/ G7 J) M
to update-global-reputation-list
+ g2 Y8 j% ]* w) Glet j 0% _3 ~0 G f/ l' U# ?" d6 F
while[j < people]
8 R0 q8 L7 e2 k[2 [# R5 M7 u+ o
let new 0* u) s6 F% X2 P( [" A. B: [& j9 t! Y; c
;;暂存新的一个全局声誉
( x! G) x# i. ?* }# ?( z8 Jlet i 0
6 [3 Y; k* @ D5 Olet sum-money 0
; V. A6 T8 s3 ]3 b5 ~$ Olet credibility-money 00 ^- ]+ Y1 g( e. D' u# h8 f
while [i < people]
0 f+ G0 ~/ I& s% v6 Q5 l[. A/ D* f; G: v$ q, ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 ^5 q# k5 F7 j) S4 ?
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ m/ {0 z" R" p4 `1 Y. {% p
set i (i + 1)
' l3 G+ h) u0 g X4 i& {]
1 t8 h% _' B& z) X' Clet k 0
+ j0 ^# G* e) r% Z: |* Hlet new1 08 K& m! r+ a# a1 K' ~- w
while [k < people]7 [/ \ c5 U3 z3 x5 o# m
[
2 o- I: `+ S+ t- d9 K2 Y0 _* Fset 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)$ K: j; E" P) E" A' f
set k (k + 1)- w$ |( F; K) c9 Q2 p$ t
]
# H/ L' |7 R9 r. A2 W$ pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 }% ^0 z/ \4 K E& l6 uset global-reputation-list (replace-item j global-reputation-list new)
7 y/ ^* x& a/ F7 @/ Cset j (j + 1)
7 L8 g, Y7 h2 i]
, b' f7 ?% @* ` V+ V+ U6 `end$ P1 U, ?6 Y, t; e( }
& \4 w; i6 y- l1 S) I; ]- d
6 v3 u! o- t. F0 W/ b- K
* ^8 w$ i% B- u# ^6 w5 u9 |! S
to get-color2 A" i6 x8 K+ F. h, g/ x! G
/ Z1 b4 a z$ g& s8 u% hset color blue H) {9 w; q$ G# p% V" E" A6 d+ K
end% R. [" I5 L& P" x8 {# i+ L/ H! y
) W/ O* G# R" I0 {* `) [4 Z, Oto poll-class
4 y+ m( f4 W& G; J* J: Kend# B( s6 j* e0 ~* Z2 a7 q
. m) \; U; ~( w. w- s9 c2 Gto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
. _1 x% i% a* D0 b) J* r+ {! L
) m7 u0 n8 V$ q I# ]3 Nset-plot-x-range 0 xmax# _$ a' Q j2 k' H# [8 D' G
) U) B, c* F' m/ h" J! t+ j5 t
set-plot-y-range 0.0 ymax2 d# K$ [1 Q- U7 \; @# q
end0 Z1 T8 n/ }+ c" K& F. V. M9 M
- n# F% A8 P& I. {. }1 J) |2 @4 _to setup-plot2' q* O. p, H2 z) ]. X. V
$ F, L0 ^* z7 G+ }; vset-current-plot "Trends-of-global-reputation". v2 z, g- C( L& M
; x% ?* U9 I% \, Eset-plot-x-range 0 xmax
* p# x% o+ c# @; _& [9 U0 X- }8 Y
3 n3 I& g5 B2 Z/ r i' lset-plot-y-range 0.0 ymax
1 A2 g# I9 C5 R$ F( Send. V2 {% ?$ F7 N3 u4 H( ~# p
\' |% C! m: }6 S1 Fto setup-plot3/ r) M* n7 J* R0 {& E. w0 d$ e
$ N7 {; M+ L" ], A
set-current-plot "Trends-of-credibility"3 y% ?, n6 F. X* f) Q: f
1 s# J9 \' o6 s+ V5 e* N/ R! sset-plot-x-range 0 xmax
; o9 p, l5 w3 d: y# {- m) D* k& |
6 m/ ~8 C5 m4 nset-plot-y-range 0.0 ymax5 w- }6 J* ]8 @2 X S% |
end
6 d. |2 n7 ~* z: e: `
% U5 z, [* o) m7 V: c% I2 L0 _0 z( }to do-plots; ]4 }5 y# o% B/ Z$ X8 `
set-current-plot "Trends-of-Local-reputation"' `: e$ b; M1 V7 q3 q: z
set-current-plot-pen "Honest service"" H1 a9 ]3 ~/ c( E
end" l. z# d- c2 \
7 o- d! r5 I" [6 U8 A
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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