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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0 c& t2 | \- |. [$ a1 {. G
globals[: y+ \5 ~- r. Z4 v5 W
xmax
3 g$ N7 K& ^, Lymax! t3 U- Q6 W h% I
global-reputation-list
* w3 t+ ^4 S3 |6 A2 q$ R! c: |, K( Z6 X5 D- `9 K* ]. L3 G/ c1 U9 z
;;每一个turtle的全局声誉都存在此LIST中' [0 Q9 K" t+ u0 I5 l) G7 K! t! _
credibility-list9 }" Z5 t8 G: g+ Z$ h, k
;;每一个turtle的评价可信度/ B( B5 @8 ?5 n
honest-service
' c" m- s5 ?' m# P, F5 h3 {: a |unhonest-service
# ^5 h2 l) N( L" [! `oscillation4 |6 V0 }0 C, b' N3 t$ R5 u
rand-dynamic- |. V8 I6 G& ^- v
]
' ?! b$ z" I! n
# d4 d9 t8 j1 O, S F: Uturtles-own[& K4 a; \: p: l6 Z U
trade-record-all m3 A$ C; v$ T5 n6 a# M
;;a list of lists,由trade-record-one组成
+ z+ H& V& i+ K% k* N% ^% gtrade-record-one! x* ^( }6 X5 `, F8 f$ q% f0 G5 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9 m& }8 G6 G$ X% I% Z/ E
$ B- [- f& Z; z* i6 m/ f( B& U
;;[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]]6 H" t1 m: u; c8 [: i# \
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]
" U/ }4 R, L% ?* g1 H2 |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list5 B; D& B4 h, _% b, Q3 ?' t5 ?
neighbor-total# I5 U" b8 ]9 z4 p7 T# |
;;记录该turtle的邻居节点的数目2 v$ \8 o5 ]. F
trade-time
# @# K* N* \0 ~2 Q0 _7 J5 d) C+ C" Q4 X;;当前发生交易的turtle的交易时间7 K4 d3 u' i( O: W: {/ _
appraise-give
* l4 |3 Z" R( n. v* D;;当前发生交易时给出的评价& ]0 K3 m' N3 m) h ^6 {6 l+ J
appraise-receive
) Z; ~8 A1 [3 l5 O" h+ f$ M3 O& o;;当前发生交易时收到的评价4 E( n- h9 ]$ e: s1 c! U8 {
appraise-time
, P4 f, ^0 b5 b, E7 y; B;;当前发生交易时的评价时间
) A' B+ h9 v4 A0 ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
; a! U6 l6 d, R+ G* I6 ltrade-times-total
. Z; g8 Z7 d8 B;;与当前turtle的交易总次数4 O% y r7 e3 E" H# B- _4 ~- d+ Q
trade-money-total% B+ `4 ^# P) c9 q
;;与当前turtle的交易总金额
" G/ g6 f- P. v4 l: |+ ]6 f5 Olocal-reputation: T$ q4 t- f! E5 [8 U5 q
global-reputation
# z/ r8 y# W1 \# b3 L6 g. i0 Scredibility
. x: l1 z7 A3 _) g;;评价可信度,每次交易后都需要更新
" e2 h8 w/ h2 C+ t# C2 Y( b5 N/ {credibility-all
! r: g+ w1 Z( o3 f. |;;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2 B" L5 `* Q9 Y; X# ~" X/ m6 S
$ w$ c' F" v4 v6 Y2 _8 r7 M& 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
3 M0 t/ w# F; i' Qcredibility-one
! q7 N' }( g& n, w;;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8 B' r6 m3 i2 s! q+ t
global-proportion2 z9 K9 b- r% r D1 U; B
customer
' I' u {8 I! a& i, qcustomer-no3 t5 ]! W4 U; T! d$ G0 V
trust-ok
# x4 e# ?1 [/ W0 }" f( E+ ptrade-record-one-len;;trade-record-one的长度
3 j( u# p; K7 Z% r, K]
, L$ D( Z& ~' s( X0 i# G& X( Y6 v+ \6 L+ Q/ u3 X! G, X5 ]
;;setup procedure
- b+ R/ |' x% t9 I! n
* J, f: t! X7 ~0 B+ C Sto setup$ N3 k$ i" v2 `: }; A6 V
4 V$ j6 e2 f+ C( r' r
ca V% i3 S! S- T4 o" A: @. Q
/ \0 e+ p2 V% i5 v7 {initialize-settings, d! B$ b6 Q0 V0 v- }* d! a
/ y ^# I" U9 [+ n
crt people [setup-turtles]0 y8 G3 }2 Q: u/ l
) @6 L6 P( V5 Sreset-timer+ D6 t9 i7 {4 t- U) c# F
' M; |3 v8 |$ P" ~" Rpoll-class
% M, m$ f7 G6 K8 k" H9 [+ ]1 c) u: D& w j5 g" |: V5 m
setup-plots
" ?7 p3 Q; z9 s5 I- `2 f
% n$ Q8 _! A. F1 n) V, Q1 m+ Mdo-plots
- X; Z/ c! K4 x% pend
! W0 F' v% I4 j9 H5 K8 p+ x
. u* g3 j1 ?8 R+ \: S Rto initialize-settings, x8 V1 K# S! T# f6 k; \7 A
% @3 c1 N; i- K9 F; H$ ^
set global-reputation-list []2 f: V9 L0 _; r6 l6 {
% Q8 n: E% G0 h ^4 @
set credibility-list n-values people [0.5]2 o" q& c5 o* y/ T
/ I [+ }0 o$ ^. H2 p
set honest-service 0
8 y% o) a9 \& l6 {
$ i+ j1 o0 l+ m& ^set unhonest-service 0; w0 ]3 k, i( ~6 Z9 v& s
4 _' f$ i$ I1 |5 @% y0 o3 Q: b vset oscillation 02 ]/ Z8 s- z6 Q9 E
6 S, i# f& ?' d! A7 `# Nset rand-dynamic 0* A, X# A/ c9 O
end
% R$ l, Z; S8 f1 t. \; D8 {
1 \7 u4 w7 ^) F! qto setup-turtles 0 d9 {. B( N3 ~" ~
set shape "person"" V2 G6 N" t5 L% l1 P& |
setxy random-xcor random-ycor
& Y6 h: t" A7 \9 h' ~ nset trade-record-one [] t; F3 _4 r$ h5 Q7 f( S; R
% N8 k3 [' ]* l) L. L( e
set trade-record-all n-values people [(list (? + 1) 0 0)] - _& v( u# A( `; D; ?
2 j3 M+ d# p' X% M/ p" D0 Y7 M
set trade-record-current []
8 y/ \- [2 j% ^/ J6 D4 Y; X! tset credibility-receive []
1 A, g0 U0 \8 d, C, Y! Wset local-reputation 0.52 V% L. q8 z- p% F. {) W0 z
set neighbor-total 01 A9 R9 P4 O% A8 ~& k! E
set trade-times-total 0
8 i7 _' `6 j0 P& eset trade-money-total 0
9 M% C& c; G9 V7 L1 | Y/ `9 K/ V2 yset customer nobody
1 O6 c( _$ e6 O. |/ G/ u; ]set credibility-all n-values people [creat-credibility]4 K8 b5 w; S7 L& o, V
set credibility n-values people [-1]
$ ^% k* m, F* ]5 V& e) qget-color
6 Z' [7 Y/ ~ k6 p7 N! J3 G- `; j# Z8 d
end
' Y- B, h3 l! }
. L7 V' D8 L u0 O4 S9 r, D6 Q6 Bto-report creat-credibility9 g2 h$ K# K8 ?9 O& Y+ _
report n-values people [0.5]% l- V8 [) E) L/ d9 r" \& Y- v! t
end
( g* [2 {1 z/ i! G+ e, s n: {; Q9 w- ~
to setup-plots
0 x0 |% [ x" Y. {4 {* j+ `8 y& B1 t3 n
set xmax 30! R" ]! l: y& ]+ x8 s# W
- W. ], a; ^* ~4 e& Y
set ymax 1.00 q- U/ c/ F; L
2 K w O: Y; P
clear-all-plots8 ~3 j! W% c/ e% _( |! T
# H) T# g) u/ `6 g! q0 Zsetup-plot1* q5 v6 A, P& d: ?9 ]4 ?6 a
' V( l4 r. z5 {9 w9 @& c2 F& Tsetup-plot2, G0 S" f" ]( C9 I+ q. W( s
) t. w/ n/ E0 Z0 c3 t: {setup-plot39 g$ n) o3 m) y8 V, t0 U, V V
end! Y- V! h5 m' ]
! c: n: x+ u! T
;;run time procedures2 n( d: { V2 t1 H$ } y
$ k8 z1 a' Q$ m% Fto go6 G0 N& k! K% L/ P. k
2 y8 ~" M" y) mask turtles [do-business]; A0 E* V1 h% f& W" {5 g" c7 u
end
( I/ X9 V) @3 W. V. ?8 p+ u, ^. L$ x. R3 Y" U4 r
to do-business
, q) ] n2 M& z' Z9 x: V
( [. S7 A2 D2 P2 c% v. t/ x; E
5 p2 ?$ h7 o `0 h1 k0 art random 360' b& C" D* A5 f- Z
0 m4 P7 w( v, O% `, e, G+ C- O5 |fd 15 k1 L' ]0 f1 D7 \3 U4 x. W
0 Y5 x2 U7 E$ Qifelse(other turtles-here != nobody)[( i0 _' x4 E8 \7 z& H
" Y1 s6 d+ c3 k* gset customer one-of other turtles-here+ @7 K: _' w* X" e0 Q
, v: C; M' u* P( F# D;; set [customer] of customer myself
) o) v8 K/ U4 N3 r W$ i7 q6 t5 \- H1 N! G" ], h5 [ q
set [trade-record-one] of self item (([who] of customer) - 1)
! C c: w) J: u. L& @1 y% ?[trade-record-all]of self
+ y7 D {0 U- m- c( R8 m& f;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 d8 s2 t, E3 x1 o+ l% }) s. @; P$ |" N" b) q; e7 h O" x
set [trade-record-one] of customer item (([who] of self) - 1)
. m4 W. v3 {9 a; ^[trade-record-all]of customer/ h* `7 g$ I) s4 ]
! h3 |0 A; S6 g2 _
set [trade-record-one-len] of self length [trade-record-one] of self. q- c$ {5 z" ^8 x! `
! U7 s% @8 K' q9 ]% `set trade-record-current( list (timer) (random money-upper-limit))7 Q& s% Q9 E+ I* e
* @2 [9 }4 D1 r3 G
ask self [do-trust]
6 z0 x& A2 d, C) d- h& l7 _;;先求i对j的信任度" l2 P7 ^" @2 b$ M
9 ?* q4 I$ L# z3 g% L9 ] Y7 sif ([trust-ok] of self)
- c) ^4 S2 U& c;;根据i对j的信任度来决定是否与j进行交易[; X" p4 d' N c" O: W
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself- j6 q; y. e: u! \
. T. W. e5 Z9 H) w- @6 ]! ^[, G& g) W$ _- G, |% k
- ]# W M9 e0 p" J! c; Ddo-trade3 B3 _7 T2 C! x5 l5 a& S2 w& t% M
, c% d7 b/ I3 wupdate-credibility-ijl: N$ {1 y# A# V
{' x, X3 K( n* {$ T5 Y& o
update-credibility-list
$ F! p$ j. o4 i, L1 S, G& M. Y1 d9 I8 k2 e0 Q& E( q) i
. V q) d5 {$ P9 D1 Supdate-global-reputation-list
9 \7 u" W7 ?8 i$ b, m
6 J" u9 `/ ~3 M+ `5 o) T0 K$ v3 Npoll-class
" S! {/ J7 j, t7 ~: p
+ _- b9 U- z6 H0 G3 f$ `6 Kget-color
) p, N+ A" m. O& l7 Y! C
6 l9 W8 L, N9 U( r3 ^]]
$ _5 n0 I; k: Z2 t. O/ ~& j/ N6 J
3 B( C. x# P/ I& `;;如果所得的信任度满足条件,则进行交易- q, F! u# Q2 D! a! ^; a
; e% U; X |) Z) n8 E
[6 W5 @' V8 f/ ~/ H
" W! G4 U0 U+ W7 r% x, d+ r
rt random 3600 e: L5 T+ c# ?! Q; X
# |8 R% |6 L0 l; p' ^6 m0 P rfd 1
8 G% c& l! X5 X/ `& }: q$ r
2 @ E5 n1 A/ J4 B]7 K, m- z; x! z x9 S
* b, m+ [6 t4 A2 N `/ r8 D$ p7 L6 O
end& Z9 g6 T$ N/ `
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to do-trust $ f% e7 c; U( @! e( l: t
set trust-ok False
, F0 H7 f9 u) t
0 ]% S- Y+ f) u% y4 M6 b1 X
2 p2 ]2 v* d) w1 x9 I4 Plet max-trade-times 0" Y, O/ C: A+ n, d" I, u! ]) b
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! ^+ X$ {' W9 f& vlet max-trade-money 0
7 b5 j+ `' a0 p( zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( l: d0 a) q9 n4 i3 v" Dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! ^% Q& m0 c% H, ^
* D+ x! Q4 K; G: t7 O# C( K" f
" q3 Q: c7 Y2 y v( fget-global-proportion
3 v5 D% |: r0 I& m! @+ A1 x6 l- dlet trust-value
$ f+ a. J- v* W( ]+ wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)) E2 n5 d4 V/ l% L# Y( j
if(trust-value > trade-trust-value)+ ~3 r4 m& ^, _7 \; E
[set trust-ok true], D( R4 C! Y2 a
end
, ~/ X% E0 M- O7 r2 i
3 {! g% D# H6 r2 c1 S. ato get-global-proportion- \1 @: m! M/ p# G
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# Q: \; g6 f5 z) t6 v. Q[set global-proportion 0]. q" G/ Y! p$ ^# G J- ^
[let i 06 z2 @+ L% A% F9 X. s) B# k
let sum-money 0
; K! J- K) ~- X/ f: gwhile[ i < people]7 k, B' S x! B
[5 R8 ?. j8 H6 p2 z3 x7 a
if( length (item i
/ h5 a) ~/ D) E: z[trade-record-all] of customer) > 3 )4 ?5 ~" L8 ^) d; O% h
[( Z- [% b: G) p
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* i! x& T. z- C9 R]
" o& S2 I/ w6 T6 D9 p]
: G) Q# \% f$ Klet j 00 h! ?- {8 g) e# v
let note 0( D, I9 ?3 b" D6 ?8 r5 M
while[ j < people]
- M8 p Z# K8 ?$ Q" }# w" I5 a# H7 `: V5 m[- Y, e: f: x. X7 J
if( length (item i: j* d# `7 Z. O1 E9 ?
[trade-record-all] of customer) > 3 )4 @' e/ @+ S8 ~6 }. @
[
" ]+ b, B1 `' C6 w# G$ R" Y0 pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 v- k3 {6 c# R' w9 d
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ ^, I, K3 t3 {[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 l: {% d8 ]7 F+ B6 T# |* L! ], u
]
9 |; w- o/ q# c2 s! U]
" s. w1 b1 n4 t& Q, K$ E# A1 \set global-proportion note, Z8 D' J+ A" l# c2 H; ^' B4 a7 @
]& L* C' Q1 n% b
end# _# |$ C$ R. [. Y: e, R& S
" }4 B6 @) U6 H/ n
to do-trade
! y: a3 ?2 v5 J& _4 g;;这个过程实际上是给双方作出评价的过程
% u8 P0 M; H: Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 W: D* K# \ {5 Z+ g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: @& o9 F8 Y* M7 u) E( U7 w4 a
set trade-record-current lput(timer) trade-record-current$ V, L' R" j5 p- E$ m
;;评价时间
8 F/ H7 e! V9 c. e. ]9 R' [ask myself [
8 ?) t0 r$ c7 t( J; Pupdate-local-reputation
9 W4 ^7 D& d' ?/ q$ Dset trade-record-current lput([local-reputation] of myself) trade-record-current
2 U; h0 h% V; {; G: R Z]: x" |1 Q0 w! B2 S; S- [ n
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ z) y' d0 k3 F, X( |6 \! j8 x4 Z# I; ?
;;将此次交易的记录加入到trade-record-one中
& K& N/ S+ ^5 w5 |" Jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! @, J1 o# R' _, d' g, Vlet note (item 2 trade-record-current )6 G5 D |. p2 q5 Q$ z
set trade-record-current
& H$ N; g: W; i/ O) g1 [, U(replace-item 2 trade-record-current (item 3 trade-record-current))
% H; f8 I% \( E( M! p7 l4 V' Pset trade-record-current+ c, \6 |# o4 d2 r1 }$ I
(replace-item 3 trade-record-current note)# C" |4 G4 P$ _, e- Q- E
7 N* G- L6 O2 Z, j: N) J0 S
1 H% l r' c/ H, R* Nask customer [
/ [( C; d4 A& o- v' V7 pupdate-local-reputation7 w- w( l& J9 K
set trade-record-current# w! n) I6 G# p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) P! j8 m6 v8 _& U9 Y
]8 Q7 U: T5 E# P/ X; m2 H
6 h1 S1 P1 I1 d+ A) B$ }
6 M k7 }6 Q* C) ? t% m; zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 }* M* j) k+ T1 k9 U
# ~5 n. p4 K) z3 } d, e. E4 P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 ?7 H% S% v5 v6 h& b8 k
;;将此次交易的记录加入到customer的trade-record-all中( G0 _0 z; E o2 r
end# O3 E3 U5 p- D
1 U& @6 V/ k0 a6 L! N
to update-local-reputation
$ }& I' c% C3 R5 d) I2 @set [trade-record-one-len] of myself length [trade-record-one] of myself2 N+ H$ C2 W5 d# N; Q- T7 Y
8 ~! T. V: r9 }2 [6 l1 P. s5 T& C' w( }1 a" D: C( [
;;if [trade-record-one-len] of myself > 3
- \/ q1 y8 u0 f3 ~% H3 q* |update-neighbor-total8 a+ p; @4 x( Q5 _2 q. j0 k5 F7 I
;;更新邻居节点的数目,在此进行
$ J8 Z' Z1 z) s! } N5 Olet i 3+ l# n* V `' Z
let sum-time 09 m1 Q b0 l- b3 p' k1 ~5 j; e
while[i < [trade-record-one-len] of myself]
" g$ I4 {5 o0 x; U1 Z/ G- y! m7 d[1 x& V+ q8 ?) h! U _
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 O6 ?, u1 @5 B* Cset i
4 _9 X6 [# E6 N: p. s: L( i + 1)
b3 y; Z( n% {1 I4 {]
. l' t4 v' o2 V. d' Tlet j 3
1 w' r; r6 @- M* x3 Rlet sum-money 00 f% y% H1 o* z. T
while[j < [trade-record-one-len] of myself]6 y% d1 E- z+ c5 c7 J) O2 {
[
2 I' ~) y' U* X, Z' o5 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)
, V. Y% A5 p4 o5 n$ X* @set j
8 r! N$ I6 o" A( j + 1)' I' a0 N1 S) ]" w3 `& R2 _
]
% x F, u- V0 l2 j: s2 g4 {let k 3
]3 l* P6 D9 K% y5 h2 wlet power 0' ^/ c$ p* u, l7 H! R; D$ S
let local 0' I& _- q; {7 y9 d+ w4 m: J% K; O4 Y
while [k <[trade-record-one-len] of myself]
& i. r( x9 O/ n ?) Q; }) g[" O5 U9 B& C, V" @; E
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)
7 t- M! V* G% L6 Z1 t& Mset k (k + 1)( ~: u+ J: R4 i: J( V; J) Q* g3 P( q, [+ x
]
2 }5 u+ w; U# M( f6 zset [local-reputation] of myself (local)6 ?! k1 ?, o" u7 k# U; V
end# i5 Q, v' |2 p4 U2 n' L/ g8 R
* w+ u# @) w; W0 R k* M" _to update-neighbor-total
; A! m2 h& z! x1 V! t* g) A7 K( L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( c/ }3 A4 e" Q# o e9 q* q. \/ ?5 n$ J' G' ~9 z
0 G% t- U i% S, hend c- e# W- ?# n6 f2 C( s/ }
# x! i, Q n2 ]! F
to update-credibility-ijl 7 U H- a- s2 q% i
+ \$ C4 w- l. E;;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。% }6 i9 d9 I5 j
let l 0
; Q; Z8 x, ]% D. `4 Rwhile[ l < people ]
; E: S7 [( b. r5 ]$ j) k;;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# h9 e% |, }$ T8 Y' A8 Q- P: g
[1 e: v2 z) Q- A/ d/ f4 z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) b9 E8 i. M. E8 H1 S
if (trade-record-one-j-l-len > 3)+ x4 @8 i( o2 Q. ?1 e, [ o
[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 J& {. [4 \" a+ r
let i 3/ s4 `& H) q% o
let sum-time 0. u2 Y5 W$ |3 v* Q: h. A% [
while[i < trade-record-one-len]
0 W3 y+ R, q: v[
4 ^; G$ v" q; G. N$ |! Fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ M( D$ i: N9 n# V; j8 Z
set i* t! l2 i8 l r$ ^' s5 r) ^1 Y
( i + 1)
; S; j3 z q- K2 _, R- x: m]
! C( f; S0 f3 g4 X+ ^let credibility-i-j-l 0# U. I* W9 B' R( L/ m2 E# _8 c( u
;;i评价(j对jl的评价)' \! n# x+ I# }1 @1 Y
let j 36 e7 t Z, G- }0 p
let k 4
8 n/ }0 F* `4 m! j& m! Dwhile[j < trade-record-one-len]
; S+ w+ H& p, ~! _. t9 i[
) a2 U9 w. ~9 S$ u/ Nwhile [((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$ a2 g1 [6 q* s0 r6 {; [
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)9 j, V: o9 f* A Z* \9 O( Y; w
set j
# A* J; |) a/ V+ q: Y( j + 1)3 V; W5 Q; i) d8 O3 |1 |0 Y& n4 v
]
% ]6 l' F+ V( i) G/ O6 @ sset [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 ))7 f3 X8 P, q7 {8 ]+ C+ Z. l7 w3 Y) y1 T
" e8 y) X6 n+ F3 T
( e1 A, {; t; g3 i( F' [8 }let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). x* p) W4 d0 N; _% G( i' d
;;及时更新i对l的评价质量的评价
+ G7 _/ Y0 X( j& Xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]. D3 T1 N' W; K6 E* v
set l (l + 1), R# d' ?1 W& V; v
]
' n; W$ k" S, Jend
0 p, J( o, w! Z3 d; C* C# a) \4 c& w0 O2 q E: P$ K' k
to update-credibility-list1 S3 c V) ]- G2 C
let i 0
& p4 S8 N5 B" O% Uwhile[i < people] s- F" y! p# I) M
[
) c5 }! h2 }! c' klet j 0
9 Z% |0 b) W) h7 d$ c, zlet note 0- j& M! y: l. x6 L' x
let k 0
% j, |0 ?# k7 ~( S0 ` c;;计作出过评价的邻居节点的数目8 E. {9 B, y7 W1 t/ o
while[j < people]
5 x+ Q' b+ ~; y" T. P) k[5 U5 D4 F- @3 U! U/ Y: J4 h- A
if (item j( [credibility] of turtle (i + 1)) != -1)4 g a+ Z, D& s& {4 {; V2 l! n& z/ i
;;判断是否给本turtle的评价质量做出过评价的节点* M$ r6 c3 Z3 h3 A8 v; u) G4 r( A
[set note (note + item j ([credibility]of turtle (i + 1)))
( |4 C/ j9 ]" S8 N;;*(exp (-(people - 2)))/(people - 2))]
$ x3 D8 y; V0 ~" f2 [) x; o3 y" _. hset k (k + 1)* R- a; s B) w& n" Z
]
1 x6 D) u ?2 q0 o2 t) f! L% D8 vset j (j + 1)! [8 m1 r, `! F: \& W0 b3 l% q
]
! B* }5 C+ Q* uset note (note *(exp (- (1 / k)))/ k)
6 T" P# A" P Tset credibility-list (replace-item i credibility-list note)
3 O3 v1 f* o, T4 [" }' qset i (i + 1)3 Z% v G7 I2 b3 T3 ~8 |
]: L2 h$ O/ J2 U- w6 U+ B
end
9 U6 k7 |8 z/ z" q
* ~! G$ {5 Q0 vto update-global-reputation-list
' G2 p% } f& O, b- hlet j 0( ?9 G; D* u( M5 \, I
while[j < people]4 X7 C7 P' M8 t
[ s6 E! U) q- n4 V9 Y0 _8 e5 R
let new 07 c8 R2 ^ J6 w- \& y% G% x# ?! I
;;暂存新的一个全局声誉
) h3 H7 M4 g, }# K/ \let i 0
. n6 ?4 a& O- N7 ~$ F$ L$ clet sum-money 0( P ?8 o; ?9 d/ S! c
let credibility-money 0
1 k/ f: @6 G$ [9 B$ f; D' jwhile [i < people]
7 j1 \9 J& e: M% D[3 }( [) K. ~* u7 W" U; [$ J# X6 ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& ?( Q" G* k, G7 t+ s* i3 {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 U9 Q2 `) v D
set i (i + 1)
7 z+ X& q7 I! C( b]
0 ^6 d+ @* ]6 j9 y% S' J' Rlet k 0+ v7 V- W4 S6 B8 N
let new1 04 E; W* c: _4 t( A! z6 H# F
while [k < people]+ p* u+ p& S1 p" X3 r3 W3 `
[
! T; k) M5 h+ U6 I! ]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)
* }; [ k- g' K9 Xset k (k + 1)4 X. E- i" o( x) a$ ~1 {* V
]% F% h& T, q9 h! z% O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' m9 t3 }. Q9 J- k# b" }" Z, ~
set global-reputation-list (replace-item j global-reputation-list new)
/ r' ~$ z: W: B/ T4 }3 X5 Fset j (j + 1)% J6 z y7 L2 U4 |
]$ r, C2 q; V$ n' ^4 i* b
end) |* T0 q* c; `8 l/ `
; f1 V7 e1 s/ j$ y
3 y8 B6 r+ q4 Q9 X/ h, }) j
" k5 v0 L- I, l( Kto get-color# W" W' B% _3 R' {) U9 B0 _
0 L' N. Y, U) S* |set color blue
8 ?. }. ~- T1 G" a5 O' Z5 Mend
8 E9 X( |4 ~- P9 E& s( [9 @3 \- o& p6 z- W
to poll-class
( s& J0 u' q% aend- d, j- C- r( {4 i5 |. t
) }, V( d( Y) K5 Z- S$ }: @' a+ oto setup-plot1
1 e" o) i$ n2 J
; j- P; o8 o# F3 k2 k2 w, i! Zset-current-plot "Trends-of-Local-reputation"8 ~6 T; P+ _9 P
: i# }2 ? j. g0 D
set-plot-x-range 0 xmax
1 _+ Z8 o7 G# b0 J- \5 F/ @
i. l. Q9 r( v9 c: ?0 Gset-plot-y-range 0.0 ymax
% ~" M9 O* o3 {$ \! r6 \" ]% ^2 Uend$ }- y7 X% Y* \, Y; D' G
- u1 L6 E9 E- p) l
to setup-plot2
4 u# p% F+ z* m( ?+ l1 ?7 ?# }$ V4 |1 m# ^; Q* `. @$ l
set-current-plot "Trends-of-global-reputation"% L6 j! k( w/ d
( v, i7 T' M$ J( I' n( Q( {set-plot-x-range 0 xmax* \ B$ P$ r* H8 b& O& j% I+ y
% t; J9 F" l- A
set-plot-y-range 0.0 ymax' j4 q r0 Q6 A$ t. I5 X) m
end
$ E& @9 @% i6 D' ? \, \: g( g0 f ^$ i
to setup-plot3
6 I3 l2 c, u3 A1 Q' u. @" {/ Z, B; u+ }
set-current-plot "Trends-of-credibility"
! T, _4 _: i& L' v9 F8 W3 b( a3 I. V" } O, y4 S+ l+ @
set-plot-x-range 0 xmax
m% b5 y& s& q, E D/ u* B7 v2 P# u. E Y
set-plot-y-range 0.0 ymax! H$ R4 A6 w9 e" [
end
$ X- E" a. ~( A9 d L
2 C f3 p6 Q0 T' h% ^to do-plots7 P+ X# r5 Z0 s( r& _9 U5 {. J! h, x9 {
set-current-plot "Trends-of-Local-reputation"1 p" d" R, t0 j( {" f, u5 E8 j
set-current-plot-pen "Honest service"5 S; Y" l! H. Z& v5 n
end
" O+ D( s0 z+ K4 d# G* o0 o3 C" H o& z4 J' c" l8 W6 h, m1 L
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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