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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3 r; u. U9 z: r U# t7 v
globals[
0 e0 }5 @( p% z9 H1 Mxmax8 l8 W+ I# A* m4 H" K9 S- Q% Q! P
ymax
2 p# ?! D7 X6 L8 u4 w) mglobal-reputation-list
9 m) q3 a/ Z8 a, O
! h `# \7 b7 l9 {;;每一个turtle的全局声誉都存在此LIST中
* S9 g% k' `4 E) l2 lcredibility-list
" p' T, P* B0 z N2 A# v;;每一个turtle的评价可信度
! @' q2 @0 N+ v! J0 S; m5 p! `honest-service
, X# |1 Y) @# d6 V& j/ iunhonest-service# o- \0 d' e( K
oscillation1 J; @, n2 q& D) @" P) ~* s
rand-dynamic
+ {( ^7 F5 Z( E8 d" c]( J; L, A9 ^/ l
0 R5 h0 W3 Q: I& `
turtles-own[
( G4 `- t7 V3 p2 p" vtrade-record-all1 V- [7 C6 E! T7 _
;;a list of lists,由trade-record-one组成
5 |: G/ I) `% w/ itrade-record-one
7 U% i2 t3 U( E+ R;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: w- f2 b' K( `1 K9 x/ h
i( y: K% {) P4 V;;[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]]
- L( H! h0 W$ T6 C: [9 R: D* Strade-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]
5 ^3 j# N" `; C$ y* {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list6 [9 x7 f( ^; @
neighbor-total
. F/ \' f2 Y3 T# L, @;;记录该turtle的邻居节点的数目
1 j. q0 r1 x- c4 Ctrade-time
: v A7 w3 F' I4 C/ W' T;;当前发生交易的turtle的交易时间
& ]0 u* l) S' lappraise-give
% F) a, T) f4 s0 v;;当前发生交易时给出的评价! [ i m% ?0 k- X
appraise-receive
) H9 n7 X! f1 _6 k) R;;当前发生交易时收到的评价
' i u# j5 a. s4 g' q9 p- Jappraise-time2 U8 u' `, v7 w& u. W# _
;;当前发生交易时的评价时间4 X- k( A0 k1 M V( E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉$ L" e: R5 b; J2 r5 @4 o; N
trade-times-total
" p1 S3 w- u3 p4 z/ j' b;;与当前turtle的交易总次数$ D0 o6 n; ^8 p' v' ]4 d
trade-money-total
; o" E3 }1 x5 n; p- i* i( I;;与当前turtle的交易总金额9 z9 G# U8 |' O6 @9 _. ]
local-reputation
* `% |, e9 T) F2 P" _6 F/ W6 R% @: jglobal-reputation* j' L% f& Z/ b/ T
credibility
; _# ^9 V4 |6 O) G$ l% r;;评价可信度,每次交易后都需要更新7 t& L/ X& r0 I* p
credibility-all( H- ?- I9 u9 z# ?
;;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; m) [% k, ?- }( \ t" n
' _& v- O9 f4 w4 z& C2 C. k;;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
4 {' I5 G5 g( |9 Z: tcredibility-one
' W0 X2 ~' ]/ [2 ~, _) \;;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
6 ]! u- _/ m& x/ Kglobal-proportion
2 k+ O2 U/ C9 _4 o0 A2 x' Z' Mcustomer9 y |! o; g. }
customer-no
' f2 i, x$ F' J" k. I; t( t- {: K! Ktrust-ok' l. ~. S1 d# z( x
trade-record-one-len;;trade-record-one的长度
; L- u: G- ]9 b6 Y8 E0 {] ]) R3 j+ N9 S* V( a0 x0 l1 L
4 l& l8 r0 X. u, k& n;;setup procedure: H7 D5 g6 f3 g
0 _8 J3 R$ M: ?9 e" Dto setup7 ^* S' A- N1 w3 ?: {
7 z. X( F) ^4 p8 f( ^
ca
3 b5 Q- }2 L& n% f1 q
7 w6 G7 j& L e/ R4 Y0 G( P( C- ]initialize-settings
' D% e) p1 e# U- f6 u% i* g6 I. i
+ C( E- w& R2 T$ Z' ?crt people [setup-turtles]& n8 B- b: i2 I( U# K' Y
( g7 X, q, k2 e/ Q+ ^$ W
reset-timer
# Z& O2 G& i8 _. P9 K: c0 [# z: l1 B. r* Q
% j6 g J! f5 i8 G! c7 k/ y- ^0 apoll-class& [9 @' R" a( e& I/ c
4 P# J v4 X4 r5 ^$ I, b! i/ usetup-plots$ j2 Y$ J6 S5 _ s" j
" p+ z7 J! j* I4 y8 l' n
do-plots7 E7 A; c, B \) \$ s6 t) |
end
' [; ~) V4 H4 e& z! J
: J" _ J/ a0 [- Wto initialize-settings
8 y6 c0 x) I+ V
$ p: X8 ~8 e0 sset global-reputation-list []
6 L$ `' [3 C \
) Q3 s- C7 r" ?* H5 O) p% yset credibility-list n-values people [0.5]" I2 {# R( r( g$ N" `1 a; _
9 H; u/ T( Z& o1 j
set honest-service 0
2 C8 y) ]8 n; m+ y5 p9 h7 R1 x) ~* x. ]2 Q* P
set unhonest-service 0) h8 [ M/ e) Y: H$ w3 D6 l# C- b
+ ]+ g, O/ \8 L# q4 m3 L4 [
set oscillation 0
. M$ G+ m5 n" U
" L$ _8 r) I3 Y j) P5 vset rand-dynamic 0
4 x! q/ u, p: k4 k3 Uend
1 _4 ], L5 m6 U7 n( @0 K; a! m) v5 U- M5 y
to setup-turtles * I, A/ N* q$ C* \, M5 }
set shape "person"
9 b3 u7 z3 I( z) O! u- Zsetxy random-xcor random-ycor
4 \; z- s. {' O B! ~9 Cset trade-record-one []
* T& v3 l# o1 B% D& X# H; Q% G, k
set trade-record-all n-values people [(list (? + 1) 0 0)] - _/ K* L6 c+ B" S8 Y# w2 y
# b9 D) O1 S- i2 O" Z0 s5 U* x4 ~set trade-record-current []6 w$ X+ ?9 T$ r0 Q8 e2 Z/ A% v
set credibility-receive []
7 p( v$ `" _! p4 hset local-reputation 0.5( C1 b' B$ L9 a3 s T1 P
set neighbor-total 0 x" {. u1 H% A0 g- {2 _& T% k+ \
set trade-times-total 0. _6 l1 H) E. r3 _- U$ T+ r# s
set trade-money-total 09 z) L, ]5 X' ~2 e, h0 l$ D
set customer nobody4 ~! h0 a8 [* n, w4 D6 {7 s( c% m
set credibility-all n-values people [creat-credibility]* I7 M$ N: ~7 K7 Y5 j) W
set credibility n-values people [-1]4 m! c6 ^7 W. f8 ]) @$ @0 d+ T8 |
get-color2 o" g# i8 _9 @) N$ e- V8 ~
7 }# T* ~. Q! u' @& s3 F2 N
end0 h6 Y& O8 J }' G8 I/ w9 ^
. b. l \' ]! ^# S& |+ [
to-report creat-credibility
( D) W8 V/ t7 A5 C+ ~) m) Y) dreport n-values people [0.5]3 @" a" ]! ?; o4 Y' D! s& n" L
end
n% l) @* b$ [" `
4 m$ e. {; r* Lto setup-plots
! X( C6 o$ p7 v1 p" ?- v, X1 S1 Q9 ]" S, a3 b! G: B, E
set xmax 30! z: p7 Y9 s8 s( t
% u6 \* z/ p2 P/ B( G
set ymax 1.0* t! q' n. N. d
3 S: ]" D: A8 I3 n5 K _clear-all-plots1 X; L2 o1 s# D! Z" j x
! n7 k6 N# n& W$ P0 psetup-plot1 e! g) j5 |- a" O. k/ z4 W* {! H _
/ c8 I& T# ^# s- m8 R- Y
setup-plot2
+ \" A* \* U4 g, T+ n( q
Z, [( z# t5 v# Gsetup-plot3
4 G1 @ l( R! Q: U3 }end" v# U3 f2 c* S6 F$ \5 B( d# b
+ D/ `- j, \0 ^: O1 G' ~3 D2 Y;;run time procedures" x; J) g/ Q' Z7 U
$ M Q/ }6 a& j$ M* y7 E& Y
to go7 B) z3 @4 o& q# v) s, c# N
! q1 t" R$ g% R1 Task turtles [do-business]
8 K9 H% x* i; i2 n% x G1 ?& bend
$ j/ A9 A$ \4 c* M V# ~! Z$ F6 P+ A2 `
to do-business 0 o% C; r* c0 p1 U, Q
9 [- e8 `1 B* T! ^3 f; L# N
6 e: S/ ^% {( A( T
rt random 360
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+ D h$ }; H( \7 f8 G0 O' ^" efd 1
7 f& T' T; B. y+ i
1 _' @( ?' _: K% ]: C) \ifelse(other turtles-here != nobody)[
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p2 B* m$ H7 m4 D( u& Iset customer one-of other turtles-here
; }0 z1 U/ k" _( h2 _4 f N9 b
! I" O7 P$ \ s* `; E3 Z;; set [customer] of customer myself
6 d7 R. ^0 H* T! u, ]4 _7 k7 D4 d( t. d4 |% g0 v) O% w
set [trade-record-one] of self item (([who] of customer) - 1)
: \1 N# l1 ]- _1 i4 V0 C[trade-record-all]of self5 a4 v* \+ X# U% `: x7 u
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 @' t$ I4 \' }% s! E2 |5 S* l3 \% |* ]
set [trade-record-one] of customer item (([who] of self) - 1)
; q# P+ c J( M' U% Y! B- b[trade-record-all]of customer
( [+ h( ? H$ v$ }$ P- T+ ]7 u3 S) ~/ Z: T) F
set [trade-record-one-len] of self length [trade-record-one] of self( F* ?# Z4 Z P7 `: K* }# e
& M( }* j' @5 Z |/ X) G% n
set trade-record-current( list (timer) (random money-upper-limit))
0 P( ]. Z+ f" U2 O* M# c: s1 @; [* z) n8 {+ N9 Q8 N8 Y3 f0 ^
ask self [do-trust]
M; J6 C$ X. r% ^;;先求i对j的信任度% `+ n& C. a- ^; q7 i& f
, u. }' k, f o; r* _) \; Uif ([trust-ok] of self)9 U( g g9 n. Y e: B- E( i
;;根据i对j的信任度来决定是否与j进行交易[6 `% |+ C1 T0 U1 ]" H- X& u
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. e: S" ^$ [0 H: ^! b, ]
! u8 ?# p# e) k7 g[
5 J* P+ [! M3 z& j. G* X, }; O: G
: l& \! a7 I5 V, Pdo-trade
; q& ]8 o1 o. c, | o6 h$ N
$ g% S) f* J7 Zupdate-credibility-ijl i" @# j/ z+ V9 P5 E8 V
J0 W, J, O& L+ F( Wupdate-credibility-list1 q6 h8 ]7 z4 [8 H. N2 n4 d+ F
4 v0 G @2 R O/ |# o
. I& ?: ]8 h) D( _update-global-reputation-list2 k2 d. [' ]6 S/ M. |5 C
! V; e7 _8 T* S: E
poll-class% m) h9 W' _5 z1 N* ^0 {( T% w" ^
% f3 a$ j4 T; ]
get-color+ C& }" g$ ~3 q
5 S x, g4 i+ s- d$ Q
]]! s/ O: X3 d) e4 }0 L0 g0 Q4 g
, T- W% C' j8 c" V {
;;如果所得的信任度满足条件,则进行交易
% h/ k# Q1 f* i9 l1 y$ d2 K9 F, ~3 V2 n3 q w5 ^1 C8 T' }
[
6 W7 D8 W$ S/ q# e, Z$ o4 _, I( t: u L( [8 H. T
rt random 3606 S+ |! |- _+ s( i5 C
, N8 d% q- h+ Y7 U3 V+ ? o$ Gfd 1
$ j4 b! b, R$ X! `# v! q8 i/ e3 `4 J6 h' M
]
7 \. W# I( d e$ [" h: [7 R& ]/ b4 _0 q/ T( [) N& L( w
end5 N0 l1 A. a/ |; i' Z' k& Z
; O, m, u7 O6 B5 C$ E& I1 U
to do-trust
+ _0 C+ B% ]3 C" Aset trust-ok False
6 N2 \7 n) F3 c+ O7 j5 V* F# d
5 g& A& R0 L' N E/ R8 G# ?* [6 s6 B, E
let max-trade-times 0" v, Q1 A8 G5 X! K( Z4 y& t6 U
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; p4 |' ]: u1 E1 ^1 C! s0 g
let max-trade-money 0# l( p& e5 F+ t; c0 u" {6 y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 K0 t6 @: R1 Q% b
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
: W# n- g k9 M% A a
/ `8 ^0 }5 O* @. t) n/ G
) @6 ^, s/ Q; fget-global-proportion! p5 U. u6 p- D9 i
let trust-value
- K, q; U$ K/ ]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). m$ \/ o4 f( y V0 G
if(trust-value > trade-trust-value)
7 |0 u# L+ m" y; W/ D[set trust-ok true]( \+ r) E0 c! h7 z2 v
end
% Y/ ~6 }: E& u0 O; J+ K8 l
8 J) P2 _6 l& I( z. pto get-global-proportion
X4 m0 ^( S# V" d0 f. zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. o' A0 c6 j9 o[set global-proportion 0] j: Q! z; A6 N0 Y+ b0 t! W# @
[let i 0; g) ~$ G5 Q4 H8 h
let sum-money 0# K3 a- a. ]3 g9 _1 J4 r
while[ i < people]
V2 b) y8 O( d2 W5 w* Y[
/ @% e1 F: W6 Tif( length (item i
; x3 \: l4 d3 h% Q) u) Q[trade-record-all] of customer) > 3 ); ~3 V7 @" L: i; x3 \% O P4 ]% E& n
[
: m- q" O/ E& q" n: Uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 }! m% {% Q# }
]% ~6 W( |) X( Z! s0 V
]
5 K/ \4 a* ^2 l- [ ?% e* r3 dlet j 0
0 _- j: @1 H. D' Z5 Vlet note 0# L- |4 t6 c# ^9 W8 {
while[ j < people]% r4 v; D9 f/ ^1 v( A# G$ t
[: m3 X( z$ J& W6 n6 v
if( length (item i$ D# Y% {5 K0 h& M5 M7 ^- s
[trade-record-all] of customer) > 3 )
# o( e* g( c) c/ W0 w: ^2 j[& K7 ?: }% h/ I6 s$ g; k
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). @# w: F0 n6 l) [) P \ u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 |/ T* _5 l0 ?6 s: [ J6 _2 t[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ q1 \0 ^0 d1 ?
]
! U+ D. f" E) a9 _3 M. w3 G]
3 L3 A9 t9 v8 V, Q6 ~# ^set global-proportion note {6 j: E& N D9 P- Z
]
" M7 ^) `8 n; kend
+ o4 @- G$ n: t5 g# {2 z. p; T0 v. p, k: ^$ R; p
to do-trade
/ V% l3 Z1 D# k* e" u+ L;;这个过程实际上是给双方作出评价的过程4 _- B7 ~% d* e+ b. ?- Z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" a% o1 m4 q( }: R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; f. }& F* r$ J" F; n/ E$ b: Kset trade-record-current lput(timer) trade-record-current5 Z6 v, s4 |6 D1 s# l* k% o( q2 u
;;评价时间
. T) a% Q9 [% Cask myself [" J( g1 u4 o2 J/ l# J9 S
update-local-reputation
$ W- h1 @/ k0 G. U" \4 pset trade-record-current lput([local-reputation] of myself) trade-record-current
0 u4 b, W H& I# A5 \) P] i" y" X2 ?8 T* `4 s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- `% }( j' V# R8 ~8 j9 t! E* K! d
;;将此次交易的记录加入到trade-record-one中! g; m/ \3 A- y5 G2 u9 T. [1 R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 w1 o" F( {( e1 M S/ H& P, V$ @. Llet note (item 2 trade-record-current )* ~) T# C: q$ q& _( Y
set trade-record-current- U9 H1 H/ d3 N
(replace-item 2 trade-record-current (item 3 trade-record-current))+ E! X% ]% P) Y& B
set trade-record-current |( K3 q( j1 _. T8 f: m
(replace-item 3 trade-record-current note)& N x$ v) r; Z* T# E* y; r; }; E3 l
9 N+ }# P9 x6 T2 B
3 v; Q* K; p9 H9 L# U2 Vask customer [
6 A( Z9 V; e6 f( e' supdate-local-reputation( W# R9 c0 o9 \" m& v9 k; P
set trade-record-current. a7 O; c+ T' b% {* z0 o
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ @6 a. t2 u- c$ Z, p; p]
' n; X( n$ R) a+ k( e) h* v
! Y$ W& W5 E& s2 L7 l0 @5 l- K1 g
+ S) \. ]& {5 ?" X) ]9 pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ L$ @( O9 {5 P4 R2 D
7 v# i7 S) `2 O0 D6 M; B: z9 |# Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 U5 Z' W9 m" I! u" l+ E: S/ Q7 E;;将此次交易的记录加入到customer的trade-record-all中7 h: B$ G/ d: S0 E, k' y
end9 f4 q3 H$ f- @8 v' R/ B1 A
( S4 y" Z# \. X! s
to update-local-reputation2 \* Y. e- D3 m0 i* Q
set [trade-record-one-len] of myself length [trade-record-one] of myself7 X! `! w T3 B% ^# ], T
$ X! C" t/ q" x! ^9 s/ E9 Y. X" F
, {2 q9 r7 G; \9 d8 Y1 W
;;if [trade-record-one-len] of myself > 3 " } Z4 W8 V+ Q
update-neighbor-total9 f. F8 C/ M, Z8 q" u
;;更新邻居节点的数目,在此进行
$ m7 }* c! t8 Mlet i 3
- t$ s4 g* {1 R5 ]let sum-time 02 B7 Y! D2 [( \& N
while[i < [trade-record-one-len] of myself]
8 Z& H7 j3 z7 q0 \: i9 K[' [: U- \( B: I/ b6 V& F, l
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ W4 r$ J; h5 W! F. t/ U
set i
+ x6 { X) u/ T0 e( i + 1)6 [5 t" |) }2 ?4 O: w, L
]
8 ? |' g; ^% G8 T9 D/ Z @" slet j 3
% L- Y9 h. D2 b0 M" rlet sum-money 0
. p& I. M( U8 c# d8 [1 gwhile[j < [trade-record-one-len] of myself]9 E- Z& ?3 }- }1 E% y3 R C
[' j- D( Q8 Y: B# p) Y- d
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); p7 h# J9 I L- y. n) C
set j
6 a- L& n' w) k6 Q. Z0 }! v) ]( j + 1)6 h: E" b4 A9 Q: j) Q& q
]& u, V6 Y- `8 Q( Y% n5 C
let k 3
2 k6 [- \" z& Clet power 0 c8 E; l' O, a, k, N8 \& ^, Q
let local 0 h% {% S+ Q+ ~, ^
while [k <[trade-record-one-len] of myself]
6 ]" o, A8 Z- d[
7 G! ^$ }; L( Bset 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) ) | t# I! {5 O; n) f
set k (k + 1)
+ m: I( ` v+ [7 k/ g) x8 q. I]1 G% B6 X+ I/ G6 B* G( ^) {
set [local-reputation] of myself (local)
( h0 ^; }$ F) n/ X# y R* \9 qend
7 X8 W; _* B9 p- h+ L$ c+ V1 d
9 I' l% L+ e: T+ V9 q2 Fto update-neighbor-total k4 q$ @2 C- T' o0 ~! P
- e5 ^) g' v# x& ^( W" F1 kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' i* v! g# R; {5 d0 N# d
9 c5 {( w0 r- j8 E* H5 ]8 k2 N5 p7 t6 z# n2 E5 B" Z. N
end
6 x9 A% l0 _8 w2 C8 y! W, Q, y, e6 g( N# M6 r3 d) L$ k
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。 _% B1 M/ n7 q/ |* C: P
let l 0 J, J2 S9 E0 t
while[ l < people ]
" f9 f' ]. S6 H9 X Q: a) y7 c* e;;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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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 @0 B1 {+ E/ r; r' Wif (trade-record-one-j-l-len > 3)- x3 u, N& t" T
[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 c' i5 d' p8 ]9 B) y1 _! G ?
let i 3+ r M K" G5 R1 ~2 V9 l
let sum-time 0- U5 p# x' G! a3 [8 C; m @
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 F8 F# R8 x- [' V5 bset i* }/ `/ _$ f" F8 W
( i + 1)5 J, L M& c' g0 v
]
. |& n w5 b* R( y. Alet credibility-i-j-l 0. M. n6 J5 s. ]# @: N4 i+ B
;;i评价(j对jl的评价)
" h G, X" E" a+ U9 @# a6 w; Ilet j 3
9 g, \4 |8 H' b% ~- z6 vlet k 4& e/ F8 {, H1 V [3 @
while[j < trade-record-one-len]
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0 Z# [4 u, ~2 w2 Uwhile [((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$ r D* Z# [* u& h4 c3 Z
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 e" ?2 E7 I) f# c" |3 rset j. S# G! N1 J3 v
( j + 1), P4 J; q5 _: V# u+ {) t
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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 ))
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! H: s# o- T1 G! q* z" B/ plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 q1 ~8 ] F+ f8 k. b
;;及时更新i对l的评价质量的评价0 |0 i/ m$ o7 V- Y7 h: `2 _6 Y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 ?% V1 [0 X4 W0 @3 b
set l (l + 1)% i6 ]4 t0 l3 V
]
9 a2 x, T6 T" D- R9 H0 u$ nend
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to update-credibility-list
1 q: ?- S' `- Nlet i 0
0 y& a% R& o0 U* E% T2 A! h& Xwhile[i < people]
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let j 0/ ^3 j U8 j& u% n6 Q
let note 0
% o3 q% W: {( hlet k 0
) H8 x/ e5 {7 U;;计作出过评价的邻居节点的数目
! }8 h' I% K- O7 Cwhile[j < people]
8 S' ^+ Q% I+ o- v3 ]* E[( m' \" \, u/ t; S
if (item j( [credibility] of turtle (i + 1)) != -1)0 E; m3 c& [- ?* P5 x
;;判断是否给本turtle的评价质量做出过评价的节点
. |5 o4 ~ n6 K6 {* u[set note (note + item j ([credibility]of turtle (i + 1)))$ L- e/ w$ ~( ?2 ^* r1 T
;;*(exp (-(people - 2)))/(people - 2))]: A+ I+ ^ F; t1 l I# {/ [$ [
set k (k + 1)
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4 g8 x4 Q* t/ {. L0 i& q' n Q4 lset j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)! y' \& _5 }0 c6 e
set credibility-list (replace-item i credibility-list note)% J& h0 E+ W0 N" ^
set i (i + 1)
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; v" J+ G% U7 pto update-global-reputation-list4 W5 f0 e" ]7 L$ P7 x, l4 E
let j 0
$ R/ U' S+ J: \& }while[j < people]) E+ @% v! ^+ V3 |. q9 l. u3 p
[
1 z+ W6 M# T) o1 d, c) A: N7 Q/ Hlet new 0
0 C4 ?5 g1 ~. f( K$ A- M;;暂存新的一个全局声誉3 s6 k9 ]* Y- ~1 u
let i 0
$ `, s( v. x, B6 |0 xlet sum-money 0
6 ~6 S1 A/ s$ b; B0 Plet credibility-money 09 [4 |0 G2 x' x" i( H& k/ T' Y9 B
while [i < people]: H+ f* @+ s- n$ V3 a
[
5 W4 E( b# v3 u. O$ s1 Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- G. B! J9 q7 {9 U/ d; g$ oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ s1 v: e, o* {6 k9 T
set i (i + 1)
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9 p& B6 _- j& U5 ^4 ?let k 0* h& T% g+ @6 A
let new1 0+ K, Y( J" {' u2 p/ d. y
while [k < people]( C+ D0 j1 j& R
[
4 u% U/ J( [6 y' v! Wset 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)
9 o4 C5 a1 E4 K* `set k (k + 1)3 ~2 `$ r b& K- K# a8 ]
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 x8 A3 o: q) M, U
set global-reputation-list (replace-item j global-reputation-list new)$ F* a2 ]8 G! b- `% ~, h: P% `
set j (j + 1)
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1 n/ I0 H9 }% Q/ G$ s. ?4 pend
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to get-color
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3 V, }0 O4 `: Uset color blue( i( g0 j& h* G
end
% r( j8 a" v& i& F& K, H: {$ {/ D, X/ w6 } F, u
to poll-class
3 A; B v1 V+ o& ]end
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax6 ?: [8 X2 k) h ?
end
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( T4 `: G; ?9 y V+ r! _4 ?- i, z1 N$ zto setup-plot29 e' o' I" c T6 I3 f: Y% v" {2 P8 n
( n7 W& E n, l# f" ^! Hset-current-plot "Trends-of-global-reputation"' h2 y3 p: l4 m' I
% M* K x2 e1 S+ hset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax7 X0 j$ C/ Q" D6 ?- V7 z
end3 j3 p; u7 \: D2 z8 U0 T
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to setup-plot3
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) Q* Q7 i. p! ?set-current-plot "Trends-of-credibility" r# l# {" Z: z: w
( W' v2 o! D+ R4 hset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax) h* Q: Y7 E1 O, |1 p _7 M- z* m
end) S* w7 U" {2 B; n E
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to do-plots
$ E# Y! S" p" Q# o, |+ E3 e( d( Dset-current-plot "Trends-of-Local-reputation"8 l: M u; B% |& Q5 O! ^) ]# S
set-current-plot-pen "Honest service"* o$ Y7 K% M, w' b; X
end# J5 s; `, N$ z4 w, F2 P* U
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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