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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
, W. ?9 I3 V- @' e% rglobals[
7 I- |/ p" @% }) bxmax
; d& Q5 b8 i/ A9 J: i! X8 t4 `4 E9 Oymax
1 t: Q* z: }6 \- _global-reputation-list
9 P& G$ t* v6 ~) P) S8 y v( D# Q9 k$ g
;;每一个turtle的全局声誉都存在此LIST中
1 d0 g/ B; D% D' icredibility-list
( t0 v; }+ d; b/ |- d5 l;;每一个turtle的评价可信度
+ _9 k: n" k/ |' u: Q* v' D, S+ A# Yhonest-service
: ~" d T4 ^# t6 P& j) Runhonest-service# |) U j; p4 P% [- E
oscillation! Z3 n. i' U' N
rand-dynamic# U ~) E. q2 Z$ L' X" C. t" P
]- {% F0 j& v! O, y# O
7 O8 F+ x1 R9 n3 o# Fturtles-own[4 X7 }5 D! T$ D# L0 W# ~; ~
trade-record-all
0 J: D( K. R; l. h;;a list of lists,由trade-record-one组成) |5 L2 P. y1 C+ {
trade-record-one9 g& J; z- M7 N
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# |$ L! U- q- h6 i I7 k8 {
& Y/ [" U6 G4 ^1 b s z* B
;;[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]]
# q2 |- i: A+ Dtrade-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 q, B2 Z) F2 e) ?* jcredibility-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list1 g/ }4 R; F d
neighbor-total
' U9 H$ h+ s9 |1 u- |2 U8 F4 ~;;记录该turtle的邻居节点的数目
8 Q# \" e; `7 N7 o4 qtrade-time
8 D% E, | ~) H7 L7 g$ g$ O;;当前发生交易的turtle的交易时间
4 ?7 i$ n* K8 A3 E0 sappraise-give3 E2 s; P4 Y3 f" [
;;当前发生交易时给出的评价
) ^8 {: l. q" U' u, p1 e$ J% wappraise-receive2 G9 K1 j+ n6 K/ d
;;当前发生交易时收到的评价
( Y) D* z0 p5 rappraise-time% {* Z" U* M4 [9 B$ z' m
;;当前发生交易时的评价时间
6 w2 ]0 P0 w- C' Ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 A1 P) K% {& l1 mtrade-times-total6 }, f( E- b9 a3 N
;;与当前turtle的交易总次数: c/ H4 x$ P; a# X# O2 m; Z* N
trade-money-total% J1 k% z9 a- o( |" j; c
;;与当前turtle的交易总金额
6 ~7 b3 j% ?3 g1 j$ Glocal-reputation
3 h7 f t- c6 E$ \global-reputation% Q0 i A7 Z0 Q: F2 q1 X
credibility( E' {$ N) O( ?; Z" `3 r3 M0 C
;;评价可信度,每次交易后都需要更新
$ n3 |8 R" Z% [' Ucredibility-all
4 I' E+ p3 b* y3 I! @6 C;;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
0 y2 _. a5 I% M9 a, D7 V# D
3 T" V+ E$ v& d;;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0.54 x4 \ t, m. z1 ?6 ?* U0 E# ]
credibility-one( c" Q1 W! ^' C4 `8 C" H% s5 g
;;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4 E6 x# A* O0 B* R0 A% e
global-proportion, b) I' ]1 W/ ^$ Z
customer
: }) T9 N5 p0 Z& u1 G! Icustomer-no
8 E7 B+ ]4 |! U- |- itrust-ok
# }! q. a$ ?! v/ y# |trade-record-one-len;;trade-record-one的长度
- e ?& v$ z2 q h3 E9 i$ @- @]
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, e5 P; W8 y0 B; z( t;;setup procedure
; G7 M m# I! c/ J* y/ O) l! q! M' i j$ o8 Z2 h8 V
to setup
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# i! U) l" M% o, {& {% d6 E1 |ca
) e2 b b: Y2 X2 d3 E/ k
( x1 i& T% m/ }initialize-settings
6 v0 }6 f% k6 g! q9 }, O
9 E% m" P k$ A" I2 m8 y# p1 g; A2 g0 dcrt people [setup-turtles]8 g; ]7 y$ l2 r: }0 E
/ L7 B5 m7 R. b. ~) |1 D) V' E- Oreset-timer( h0 R/ [$ i& k9 R" X
6 a. A7 a' ?2 S
poll-class: ~# w. C7 a/ \
# L) {' S; H+ {" |
setup-plots2 a9 z* |3 }2 [! }1 [6 j+ F
( c5 P9 N/ h1 V; kdo-plots/ x6 c. q8 {+ B4 u
end$ ?& R& O5 M4 i
P5 J4 ?+ S( w- wto initialize-settings
# s* W D: [' E! M4 I4 R6 c! P# ^* l1 {# W/ W& ^1 T
set global-reputation-list []% p# T+ @4 K o) {8 C( [
: j3 I ~) p2 m" S1 G5 c( mset credibility-list n-values people [0.5]! L. m# w& F3 s* _6 b1 K P
T0 V2 T8 {0 z
set honest-service 0
6 o) ^2 P! |/ b: Z# Y& `/ D. ?# }/ ^) d! o
set unhonest-service 0
# }, m* l7 g/ @$ r) l& y7 i4 ?; P
3 ?) Z! j4 j$ ?- b, s5 p' M8 [set oscillation 0! a/ F1 T l2 d6 n6 @( h
+ S1 m2 o, O0 z' v2 t4 Hset rand-dynamic 0
/ G$ i8 @9 d% J; X! d! Gend- Y# W7 q% X" y4 W2 g/ [1 x. l
! U, `# T# U( a$ b. O& G
to setup-turtles
8 L2 r& p. V( w9 {5 {6 |set shape "person"% K! d; S! c7 O
setxy random-xcor random-ycor5 S. \3 o \* N* f
set trade-record-one []
) E9 o3 q! r7 L8 K' D
: p# b/ M. S ~$ B- [set trade-record-all n-values people [(list (? + 1) 0 0)]
" I, G: E' r& E
: W9 W6 j, t0 ]$ l0 ^: F) j) Oset trade-record-current []
4 J( _7 b: p7 yset credibility-receive []
; f# \6 ]7 r3 w7 J. xset local-reputation 0.5) K3 O% A p0 O a
set neighbor-total 0
8 p# M! k5 u9 d% x; W' Aset trade-times-total 0' d$ j. U& ]: ]
set trade-money-total 0
! [1 R+ h0 d$ S/ u0 hset customer nobody
: A& u1 U! q* q: A$ e( X1 `1 n$ Cset credibility-all n-values people [creat-credibility]2 u( z$ u& P, W) ^5 T S+ o% t8 i" z, g
set credibility n-values people [-1]
1 {7 i4 S) n ^6 H3 w) [( Dget-color( Z, J3 p" Y9 q( N5 O6 P6 |
1 L9 Q. s# k; T" l; g0 U
end
# u; X4 f* ?) B1 L h1 Q; r5 o7 p% d
to-report creat-credibility
: }/ L5 d7 F, ~0 Treport n-values people [0.5]
/ W& w) W `& n' T! bend
: k3 G# {. Q8 `/ o
: I) y1 F- N: b( X- a9 ^to setup-plots- T3 ~& I# P: S6 G1 V
: W8 \6 |- n1 M2 ~$ O) {set xmax 30" n' N" @3 o/ L7 h
$ J% n1 U2 x4 |( Z, l- G+ t4 `7 ]
set ymax 1.0
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& S: s$ d3 j" j1 G4 T, [clear-all-plots5 w+ ^! j% f$ c' ~+ E
, ~) z9 [" V/ X. o+ E$ [8 z6 K
setup-plot1
+ l" V& d8 t0 C% _1 C1 [1 p+ W. w9 P7 P& T* u
setup-plot2% H0 g3 ` S8 O6 T
, |, t) T6 e: n& l3 ?& e1 Ssetup-plot3
+ M! I3 O) b/ c9 d/ [end- ^- d% N2 Y; ^2 p
/ h2 r( }+ U4 M5 g% v# U
;;run time procedures" a0 w3 C* g, l G. S2 R; {
, @$ w1 r% O% g. L" Q$ X3 Xto go
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ask turtles [do-business]
2 ^" z+ T1 U. N4 f( Q" ]2 gend9 t+ y. ?$ O2 K
/ ~+ h) N+ U; X- qto do-business
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0 T6 i' F, w3 @, v6 Wrt random 360
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fd 16 O# C" X, P" @& O3 h9 _) F0 [
: o b# S( Y7 g5 }ifelse(other turtles-here != nobody)[: U i6 ], t3 p# u( L- A
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set customer one-of other turtles-here
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;; set [customer] of customer myself' s* X8 Q1 S' [ y2 U9 f
* x: H* O- j& ^0 K, @set [trade-record-one] of self item (([who] of customer) - 1)
- ?. H5 b; Z$ I J7 y8 G[trade-record-all]of self: W$ F$ T! o& x+ y& ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
3 c; _3 E! I9 u* c" q[trade-record-all]of customer4 w) I9 J0 ]# ^" Q7 q0 k
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set [trade-record-one-len] of self length [trade-record-one] of self5 m3 e x! T% O% S4 ^
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set trade-record-current( list (timer) (random money-upper-limit))
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0 z) _! }) n+ n9 b, N& L4 k; wask self [do-trust]; y( M, Q8 u$ _: F% i, G
;;先求i对j的信任度 `; z2 {6 V5 W! A7 _
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if ([trust-ok] of self)
4 A$ u5 E. L, o6 x* d1 V) s% X5 A;;根据i对j的信任度来决定是否与j进行交易[8 N6 M$ s- Q* E7 r: o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
b* B2 K" a# b
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$ r) H% H- e- F! F* N! u) C' s
+ w4 g8 x' f% i* f1 m; Kdo-trade$ S8 S3 j: z0 k3 ~- z9 H
, w; i- P$ v9 V4 V
update-credibility-ijl
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update-credibility-list: d( q: {, y7 Y2 E i
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update-global-reputation-list
7 x |) G5 z3 I1 b
& a4 W- O' k5 P5 v* n0 `poll-class% d+ M k8 `" } s' y( i0 e% H
* M- F/ } G- p/ s7 Dget-color+ I) r5 G- M0 Z4 L4 [& z
6 j6 ?* `2 a7 t1 \]]' `" L) R% Z o' a7 O5 t C
% b2 y/ c( x0 R3 i) O- r;;如果所得的信任度满足条件,则进行交易
* b- Z& F7 `& |4 x9 z! }
9 W4 e, g! p9 ]) ~ L' ~+ n! L/ Q, P[
* S0 m( t4 l; |, W2 z6 k5 p% i1 ]; u" A8 C
rt random 3601 [: u+ s; N7 Q5 Z) F, _
5 y: Z7 e* }( Ffd 1. ?0 M, S6 J3 z& z/ Q6 g. W
: t+ Q9 {- A) K) S7 p9 u]: b6 N% I5 M5 s @" Y; h$ p9 j0 n
! \7 d* _5 }+ e7 s6 }8 l4 xend0 y4 W* E; ^, H4 m
/ U' _: g; q2 o( a: P7 b0 dto do-trust " I4 `& K- H# _0 W% |2 C m
set trust-ok False' L/ f3 M& V6 r" O' \; J0 x
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& T, k/ N& \( K& ]' o1 h( [4 ~let max-trade-times 0. a! ~, H) v, |3 @* b# P: K. }
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ P: v1 |4 O( y
let max-trade-money 06 [2 D4 t7 ?) g
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ m$ f' _6 d# g! i& J7 o
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# o$ p! L# T4 Z" [- ?
; }; T% T! D0 H. u0 L- Z. e) M
/ N! x% K$ J0 ^. M$ ^' sget-global-proportion; F7 t0 X( u I6 V7 F: L
let trust-value7 M9 X8 W3 s8 x4 s" ~+ Z; p+ w' {
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)( X# H) t* {) h) K b. D5 v; S: t) s
if(trust-value > trade-trust-value)& H5 W% i8 p# u; ^ ?) ?% c
[set trust-ok true]9 }" j& K6 d: v* `
end5 T# ?9 T5 \0 V m4 r5 K
+ p9 Q" ?! ^, s: [; ^
to get-global-proportion' i# s* t5 r8 ^/ o, n4 B1 _' [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! G6 F: K' F( m& Q' Z7 f( @[set global-proportion 0]& t- D8 z: y5 {5 s8 k7 S
[let i 0
2 d2 |8 P3 U! X* |2 K" B1 Ylet sum-money 0/ {4 X- x/ `8 o" u4 o& ]
while[ i < people]! ^3 @) P* Y% t. V% u
[
, C9 l' q$ N6 o4 A3 | D0 M5 ~if( length (item i
0 \" o/ L" D# G, s- h% [[trade-record-all] of customer) > 3 )9 c9 P6 R0 ]) C! ~% ]
[/ t# C* {! D! ^
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]5 \5 d$ d. W+ {( B" k' W8 D
let j 0. ~2 c* ?" @- }" ~4 g) I; z
let note 0
z% N6 D0 T F5 H, p/ |while[ j < people]9 Q& q) v9 {+ o; Y; Y! v
[2 X! v5 A; l, l0 l9 \- a5 J. \2 q& B$ }
if( length (item i2 i, |, F0 C P1 f
[trade-record-all] of customer) > 3 )" E4 P8 P2 } E2 {: {9 t7 I c
[
, i, q; C3 e8 Y& {3 B" f$ \3 Mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) Y# p$ I5 K) b' E8 y% {[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 U+ n3 J0 h6 r# X# i( q% M[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! R- @1 f" x; A. B. h `
]/ D. |$ ~) l0 Z$ [# \& m# U7 t
]
; k7 `# ?; y) B; ^. tset global-proportion note
8 w! V3 t0 _' D" ]9 d]
3 N' F5 \; C# J+ u4 |) s0 ]# T( Cend( {: G4 {+ z( r* C8 r
. y( L) b( e; bto do-trade/ p6 q) q6 J; ~0 `
;;这个过程实际上是给双方作出评价的过程' A9 H# j- B2 d9 N8 z T2 _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 a- H- F1 r: g3 ]; K! ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 H% d3 X% _' K( }
set trade-record-current lput(timer) trade-record-current! Y" q/ r2 e$ E' X* q
;;评价时间* Q( `/ Z5 Z- ]5 A
ask myself [, u! _6 Q4 W. U% i- ~
update-local-reputation' I$ n6 { a& r
set trade-record-current lput([local-reputation] of myself) trade-record-current. D6 }$ R1 ?( Q% d% \& g F
]" r, @( M9 z: ?4 v- B) d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 B4 y: i: |7 w: f
;;将此次交易的记录加入到trade-record-one中
! P; | Y! v7 r. y, f( P9 Sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) q( o% ?! h5 Y3 c7 e( g, x$ N
let note (item 2 trade-record-current )
: G, S! R! X Q, L" Vset trade-record-current
0 u( ? r. m( ~(replace-item 2 trade-record-current (item 3 trade-record-current))1 y% C8 V+ }0 j/ O# Z$ G& r* Y$ v
set trade-record-current. @ w- v5 y' O% v+ a4 u. T
(replace-item 3 trade-record-current note)3 O2 p: C8 X7 f& {
0 f- X T( @0 h1 Y* X4 t- I
! ^. }* I; Q3 Task customer [+ l# i* H+ V' J! v, N2 d6 w
update-local-reputation
9 g# @* q) g! V/ _4 p5 F) nset trade-record-current% ^2 D, b3 T2 l w
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! t' D# z6 y9 O+ Q' [
]
0 t" f; H3 `( y" k8 C4 t
* H# p; x3 [; s' o7 ]* S! K5 {5 Y# s# X
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ T; O# {8 A, D0 z
4 ?- j0 J( E; T v9 _* bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! G2 w. n# M. x* F
;;将此次交易的记录加入到customer的trade-record-all中, V1 S/ ~0 G5 Z" \
end
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3 l1 e/ r& w% E6 K: ~5 Pto update-local-reputation- e+ e8 Z3 l$ R, k0 e
set [trade-record-one-len] of myself length [trade-record-one] of myself! h/ F6 b1 |2 {" D$ V; F
! Z0 `1 o2 c( z7 ~" w. m. c
+ r, k$ ~2 D* D; l h6 t& j0 b
;;if [trade-record-one-len] of myself > 3
' W1 s1 [+ M8 ]* Pupdate-neighbor-total
# D$ p q" x4 M4 ~. Z;;更新邻居节点的数目,在此进行
. Y# t6 l6 [# H" Z( _let i 3
5 h* r0 F4 N, h# }let sum-time 0
, y/ n! Y Y8 @) ~while[i < [trade-record-one-len] of myself]* Z j0 ~. s. U8 u- n& e% x3 | R
[' T! s- J5 {( B [
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 a d: m' z4 O
set i
+ W7 v4 } ^: J7 b8 L( i + 1)
* \: @# f+ w; k) x1 B, p]
% U. \' Y" j1 u. X5 J) [let j 3- O2 J y9 B) l7 Y$ e, k Q
let sum-money 0( B; _: v7 _+ q
while[j < [trade-record-one-len] of myself]) R* }% t: ?; A+ j0 b) |9 }
[
1 B. n, V1 J( K6 F: b: D% w: Kset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)+ m0 Q7 g" g5 j: W2 J- R
set j; L! r s1 c' A1 s" W6 z
( j + 1)
% R7 H% \$ L" ^. B+ g; b: l]* R! _6 [3 E0 Z. v2 t1 n
let k 3* r$ J7 A1 Z$ L) S# a9 S
let power 0( ~. e, c' [: @6 U$ L" g
let local 0
3 [, u' A1 ~0 B2 D0 p' _- lwhile [k <[trade-record-one-len] of myself]' @' l# K) i* u! m
[; g0 t; {! y6 `2 b2 R4 a1 A* s, o9 y
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)
$ C- l2 e7 ]2 E: I+ ]) hset k (k + 1)
/ x& u, m* O( ^ |' U5 W# k. j]
" A# x$ ~" k- ~% L. _- sset [local-reputation] of myself (local)0 d8 E/ x: V" u
end
, {6 J' S! R7 S' J# _9 E+ w; m) I, M4 H* T6 @/ h0 F. j: K6 h/ r
to update-neighbor-total4 i& b( M( M3 E/ ^5 j
4 R. a ^; E) j+ Z0 p, J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 a9 c) o$ n! E3 l* b% K% R0 E o
' s, I& p& D; i9 T# M' H
; h9 i7 E5 \5 ?# I' I. H& S* r, v3 {end8 _4 ?4 q* X- {% F/ ]7 c% Y
* u+ m6 S! K9 J6 ^& z' G
to update-credibility-ijl + a; m9 z# J- X3 `* T
3 V% n4 P/ Y" E' C
;;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。
, f* v/ z4 i! Mlet l 05 y$ m0 y8 w% k; }3 e* {
while[ l < people ]# P' {2 ~+ c( Y/ v) N1 D
;;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
6 R2 N' g% K; n% M+ F& F[
& i, q) G, u6 g$ Olet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* j% ]* {( C8 \, k' K% ~if (trade-record-one-j-l-len > 3)! S4 D% V8 F" r/ K
[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-one0 s; \' A, L# |
let i 3
- x I+ K0 v" Plet sum-time 0! e- F8 t8 K8 c6 r6 Q. Z: |
while[i < trade-record-one-len]
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2 X" _2 J* |& [: n- Q3 s* ]& oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 S6 H; G$ J0 Z
set i) C. l$ S8 s7 W5 T( q5 f! g7 e
( i + 1)
. ?6 @8 d) C- |]$ ~6 I5 j! j" {$ \- o2 r
let credibility-i-j-l 0
& o( {$ l* _7 y0 N/ N5 Q;;i评价(j对jl的评价)
- P/ x- f$ h& N t/ Ylet j 3+ c$ n; M# g; U
let k 4) [& G0 C7 L; P# D
while[j < trade-record-one-len]
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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1 q$ E9 ?$ L+ z! k2 E
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)
/ |" q0 H; q$ U, D; T! |' |set j9 C& n" h& z& c: t1 }( C
( j + 1)
3 u8 ]4 d! u8 I3 X. x5 _3 z]
! ?" _ @$ S5 W8 i! w7 i) [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 ))$ T3 L9 n- E+ B/ N) R( s
, u9 `* Y; ^7 B
2 K) J0 x% E4 s j, alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 V1 B* S" T( _. L+ o: w, c4 z
;;及时更新i对l的评价质量的评价1 w7 s; J5 M, {1 M0 G9 o1 `
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; C; _. ^ w$ R2 Sset l (l + 1)5 l$ ?, ^* v0 _
]
2 t) d* T3 m" P: n0 t5 @end! }8 q5 V& d6 R' H/ u4 Y
+ k; x- G# I' j9 J% P: \- `9 [1 |; g+ `
to update-credibility-list$ X: O) k6 `2 K v- m2 z4 ^
let i 0% Q- n) C z' k2 z
while[i < people]( Q$ ]' N4 M5 o! R; }6 p7 G& @; k( q
[6 Y$ H' {4 ^3 v4 y) b
let j 06 g) [9 a9 k* R4 D* c, V
let note 0
( `3 ?. c2 Z* U7 e1 llet k 0
9 ~% K) f: C6 O7 r3 A;;计作出过评价的邻居节点的数目
% K/ U/ A, g/ ^5 V- E! c$ owhile[j < people]
) G0 q$ G4 j4 |; T, ^$ A[
3 t- i6 D/ R( l" F' Z/ y6 sif (item j( [credibility] of turtle (i + 1)) != -1)
$ N+ M( d% \/ Z! i;;判断是否给本turtle的评价质量做出过评价的节点! U6 f g5 `: D& }2 x$ ?
[set note (note + item j ([credibility]of turtle (i + 1)))
. V% U# |7 g" X5 I;;*(exp (-(people - 2)))/(people - 2))]
; }( `" B& T% r2 U8 y+ t% y2 |& b5 e. rset k (k + 1)
. v- P7 I2 u: Q t1 |]2 ]- ^0 D6 c# P8 }5 A' B
set j (j + 1)
1 M; n: p" u- o]2 ~1 O8 |. p* o8 e% w3 X% `- u
set note (note *(exp (- (1 / k)))/ k)
! ?9 Q# ]" F0 s% m; Eset credibility-list (replace-item i credibility-list note)
8 N* \4 C. `$ Q3 n) Iset i (i + 1)
+ r' ~% S+ G8 l$ s& T]
& o$ Q( m! o: K7 o' C- Yend* e, t) s9 R' ~4 ^) b4 T
; K7 |$ m7 m7 X% Wto update-global-reputation-list
1 U+ z, e" x+ k9 elet j 0' L. J1 m# P w3 b
while[j < people]
3 N8 }2 b# w. Z: s6 Y. S1 T9 T. w" F[7 b7 l O$ I# V. g- ?- w
let new 0+ l' S) @; n4 j5 q( G
;;暂存新的一个全局声誉/ {$ J( |5 o; T7 x0 ~6 Q9 I
let i 0
' N, A/ W p6 M* X! olet sum-money 0
. n) f W% g5 Z7 q2 [: Y9 Wlet credibility-money 0
8 d- x& e0 K# ~5 cwhile [i < people]
% D% E7 t8 O1 H0 R[
0 H% l/ q, ~' W# i/ t7 Hset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ d L) k! L$ x) f- w* u! gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* i8 {! w1 w7 R. R" p+ N6 ]set i (i + 1)0 N$ o2 ]! m1 b, L" g$ B
], Y; s' Y' L N! S
let k 0
+ \7 s) F' H7 A* C7 g* _let new1 0
0 k7 C) z) a' Qwhile [k < people]
5 _9 i8 B9 y0 Y. ?[
6 p3 X3 `# V- {$ {- i* 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)
/ D& |4 p+ u4 r' A! p0 L5 Lset k (k + 1): |( H$ ?! f: Y, d: }2 \+ r7 t
]
( _) s/ ~* k$ ]- P: C9 yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& @; l5 I8 J: ]* s6 q; Oset global-reputation-list (replace-item j global-reputation-list new)
' u9 O7 c; _+ Zset j (j + 1): J0 r. w5 S5 h, O' R
]
; F7 V# y2 [' G1 d( G# send8 ]' G9 G5 a. _
0 C& K$ ]3 ~& Z4 `
1 R7 m' \3 h6 ^" |* B
8 z& q% V/ p- D% @4 ]0 e
to get-color
$ e6 M( i0 h! ?0 X' I7 v2 ^: b$ i, T; X% N! O' k
set color blue; y# c* t9 z7 |. N
end$ z: a6 N" E) W0 |0 `/ y
! q6 @; X* T& D
to poll-class
% m) E( J# O% F4 I! Q; _end5 P! q( ]; t( o# \6 ]) L
+ ?/ O: A% w0 C( z
to setup-plot16 e) |. M4 r! T3 Y6 T+ k' W
/ `7 o1 Q# C; b/ a t1 W2 X. Cset-current-plot "Trends-of-Local-reputation"
( l ]2 e- }5 \( i2 t/ o+ j5 e' ^6 o: y( X
set-plot-x-range 0 xmax
8 {. J' j( b' a# d: O5 `6 H# X3 \6 |) I6 ~0 X* b+ L
set-plot-y-range 0.0 ymax: ?. O. N! w+ _) B' c T' h
end7 `7 F5 b4 ?$ `3 P Q. X
; c. u8 k7 Y' U8 t( q/ ^9 ]
to setup-plot2
3 c" H& }: W7 T, P0 x. L9 M" `! @: P# x0 m' B( _. M
set-current-plot "Trends-of-global-reputation"* f! A1 z: e7 U
# I2 ^" K6 O! w9 A( Y" c sset-plot-x-range 0 xmax7 _* V) {8 H1 u7 ]; c' e' }
) t& O1 K" q5 a
set-plot-y-range 0.0 ymax
, ]1 n) e; s/ _. r8 Aend
& X0 }, K. v5 a4 k! q* k9 ?' c% P$ _# o* j
to setup-plot3
! [6 D* e3 x7 ]8 Q4 ~4 }& C' E, v! }) q
set-current-plot "Trends-of-credibility") U! G! |+ S" i1 V$ r$ b# k
6 R! z7 _/ C% E8 mset-plot-x-range 0 xmax$ C% N3 j K' r9 P/ e$ q/ \2 y
; o* O' D) r" B- z" {: f- ?
set-plot-y-range 0.0 ymax: U, J- \" n' {, U
end
: P: N8 `: E$ g+ }2 J8 Y; b
6 i2 [5 W9 \+ U2 N4 ^to do-plots/ |1 A4 ~+ u* b* A
set-current-plot "Trends-of-Local-reputation"
! m9 v. S' B6 W5 B5 t: zset-current-plot-pen "Honest service"
+ l% f' u5 \6 [8 t# q6 zend" N! o% T _, v6 y
/ c6 S& v- z- P1 S% P
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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