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楼主  发表于: 2007-11-10   

英语论文写作常用经典句型

英语论文写作常用经典句型 ~ o5h}OU"  
td2bL4  
l3kBt-m  
Beginning l,Ixz1S3e  
1. In this paper, we focus on the need for hhOrO<(  
2. This paper proceeds as follow. Zg!E}B:z  
3. The structure of the paper is as follows. Rs 0Gqx  
4. In this paper, we shall first briefly introduce fuzzy sets and related Umk!m] q  
concepts >@^j9{\  
5. To begin with we will provide a brief background on the C#.d sl  
Introduction Yc V*3`  
1. This will be followed by a description of the fuzzy nature of the 79MB_Is]s  
problem and a detailed presentation of how the required F}#=qBa[  
membership functions are defined. qd?k#Gw&  
2. Details on xx and xx are discussed in later sections. %:.00F([r  
3. In the next section, after a statement of the basic problem, various (8.|q6Nww  
situations involving possibility knowledge are investigated: first, an iI%"]- 0@1  
entirely possibility model is proposed; then the cases of a fuzzy n!\&X9%[8  
service time with stochastic arrivals and non-fuzzy service rule is *A N2&>Y  
studied; lastly, fuzzy service rule are considered. zDof e*  
Review 7~ok*yGw  
1. This review is followed by an introduction. M7n|Z{?(  
2. A brief summary of some of the relevant concepts in xxx and xxx is Y<-dd"\  
presented in Section 2. E@\bFy_!>b  
3. In the next section, a brief review of the .... is given. 'B4j=K*  
4. In the next section, a short review of ... is given with special regard l=< :  
to ... [.`#N1-@M  
5. Section 2 reviews relevant research related to xx. ySwvjP7f  
6. Section 1.1 briefly surveys the motivation for a methodology of c>RS~/Y  
action, while 1.2 looks at the difficulties posed by the complexity of /S+gh;2OC  
systems and outlines the need for development of possibility geu8$^  
methods. g4^df%)&  
Body t^qPQ;"=,  
1. Section 1 defines the notion of robustness, and argues for its 9:tKRN_D  
`7zNVYur8  
importance. !jxz2Q  
2. Section 1 devoted to the basic aspects of the FLC decision-making rTjV/~  
logic. n AJ<@a  
3. Section 2 gives the background of the problem which includes xxx YS5Pt)?  
4. Section 2 discusses some problems with and approaches to, P=V=\T<4_  
natural language understanding. ;yO7!{_  
5. Section 2 explains how flexibility which often ... can be expressed )5U&^tJ  
in terms of fuzzy time-window +[ 944n  
6. Section 3 discusses the aspects of fuzzy set theory that are used in 3g] Sp/  
the ... |:i``gFj  
7. Section 3 describes the system itself in a general way, including cO"7wgg  
the ….. and also discusses how to evaluate system performance. =MqefV;-  
8. Section 3 describes a new measure of xx. nx >PZb  
9. Section 3 demonstrates the use of fuzzy possibility theory in the eJrJ5mlI`  
analysis of xx. .)>DFGb>H  
10. Section 3 is a fine description of fuzzy formulation of human FXPw 5  
decision. p`3pRrER  
11. Section 3 is developed to the modeling and processing of fuzzy t YmR<^  
decision rules qmcLG*^,  
12. The main idea of the FLC is described in Section 3 while Section 4 L s=2!  
describes the xx strategies. $gN1&K  
13. Section 3 and 4 show experimental studies for verifying the 2rq)U+   
proposed model. 3Q`F x  
14. Section 4 discusses a previous fuzzy set-based approach to cost m1X0stFRs"  
variance investigation. VGY#ph%  
15. Section 4 gives a specific example of xxx. p-zWfXn!P  
16. Section 4 is the experimental study to make a fuzzy model of `n]y"rj'  
memory process. N&!qu r \  
17. Section 4 contains a discussion of the implication of the results of '~3a(1@8  
Section 2 and 3. fMn7E8.  
18. Section 4 applies this fuzzy measure to the analysis of xx and z6 v RTY  
illustrate its use on experimental data. _'k?9eN`  
19. Section 5 presents the primary results of the paper: a fuzzy set EnJAHgRV;e  
model .. m-lUgx7  
1o7 pMp=  
20. Section 5 contains some conclusions plus some ideas for further &>Q_  
work. -Rhxib|<  
21. Section 6 illustrates the model with an example. n`T 4aDm  
22. Various ways of justification and the reasons for their choice are BlS0I%SN  
discussed very briefly in Section 2. ul+ +h4N  
23. In Section 2 are presented the block diagram expression of a P.P3/,  
whole model !JjB,1  
of human DM system >De\2gbJ  
24. In Section 2 we shall list a collection of basic assumptions which FS r `Y  
a ... scheme must satisfy. v9Oyboh(y  
25. In Section 2 of this paper, we present representation and KU VsCmiT  
uniqueness theorems for the fundamental measurement of fuzziness qtTys gv  
when the domain of discourse is order-dense. NjVuwIm+  
26. In Section 3, we describe the preliminary results of an empirical 2i#wJ8vrF  
study LbtcZ)D!  
currently in progress to verify the measurement model and to !SIGzj  
construct membership functions. 59 O;`y0  
27. In Section 5 is analyzed the inference process through the two "g\  
kinds of inference experiments... j|9;") 1  
This Section to^ &:  
1. In this section, the characteristics and environment under which L 4'@f  
MRP is designed are described. QfB \h[A  
2. We will provide in this section basic terminologies and notations )H#Hs<)Qy  
which are necessary for the understanding of subsequent results. 4aGV1u+4  
Next Section Q <EFd   
2. The next section describes the mathematics that goes into the 4s~Y qP{K  
computer implementation of such fuzzy logic statements. ',`iQt!Lx  
3. However, it is cumbersome for this purpose and in practical BV$lMLD{r  
applications the formulae were rearranged and simplified as 49~5U+x;  
discussed in the next section. "8J$7g@n@  
4. The three components will be described in the next two section, :#"gQ^YNp  
and an example of xx analysis of a computer information system will zF.rsNY  
eP| :b &  
then illustrate their use. (tP>z+  
5. We can interpret the results of Experiments I and II as in the x:O ?Fj  
following sections. Xdsd5 UUM  
6. The next section summarizes the method in a from that is useful v&i M/pJU  
for arguments based on xx 3/>McZ@OH  
Summary 41mg:xW(J  
1. This paper concludes with a discussion of future research /d9I2~}B  
consideration in section 5. K& <|94_k  
2. Section 5 summarizes the results of this investigation. cfMj^*I  
3. Section 5 gives the conclusions and future directions of research. uz".!K[,wE  
4. Section 7 provides a summary and a discussion of some extensions HlBw:D(z:^  
of the paper. n>)CCf@H  
5. Finally, conclusions and future work are summarized v2G_p |+O  
6. The basic questions posed above are then discussed and W`^'hka  
conclusions are drawn. WmP"u7I4  
7. Section 7 is the conclusion of the paper. .%<oy"_  
Chapter 0. Abstract = \AI92  
1. A basic problem in the design of xx is presented by the choice of a \eH~1@\S  
xx rate for the measurement of experimental variables. 4K[E3aA  
2. This paper examines a new measure of xx in xx based on fuzzy *4Y1((1k  
mathematics which overcomes the difficulties found in other xx 63QMv[`,  
measures. [!,&A{.!  
3. This paper describes a system for the analysis of the xx. SN(:\|f 2  
4. The method involves the construction of xx from fuzzy relations. 6A;V[3  
5. The procedure is useful in analyzing how groups reach a decision. Jm0P~E[n  
6. The technique used is to employ a newly developed and versatile m"<0sqD;  
xx algorithm. E#v}//  
7. The usefulness of xx is also considered. w< <>XIL  
8. A brief methodology used in xx is discussed. H ifKa/}P8  
9. The analysis is useful in xx and xx problem. K>l$Y#x}k  
10. A model is developed for a xx analysis using fuzzy matrices. r S\j9@=Y4  
11. Algorithms to combine these estimates and produce a xx are S3EY9:^ C  
tisSj?+  
presented and justified. ci0)kxUBF  
12. The use of the method is discussed and an example is given. a$yAF4HR<  
13. Results of an experimental applications of this xx analysis s]50Y-C  
procedure are given to illustrate the proposed technique. ^90';ACFy  
14. This paper analyses problems in F{0Z  
15. This paper outlines the functions carried out by ... Q [kbEhv;  
16. This paper includes an illustration of the ... )=;GQ*<8Zs  
17. This paper provides an overview and information useful for SE.r 'J0  
approaching z0+LD  
18. Emphasis is placed on the construction of a criterion function by 7DDd 1"jE  
which the xx in achieving a hierarchical system of objectives are 1"YN{Ut;G  
evaluated. n^B9Mh @  
19. The main emphasis is placed on the problem of xx a$r- U_?  
20. Our proposed model is verified through experimental study. /2l&D~d"  
21. The experimental results reveal interesting examples of fuzzy v/*}M&vo  
phases of: xx, xx (hNTr(z  
22. The compatibility of a project in terms of cost, and xx are likewise {L~j;p_G&  
represented by linguistic variables. qmqWMLfC  
23. A didactic example is included to illustrate the computational |a4cER.'2^  
procedure |0ATH`{  
Chapter 1. Introduction U;`C%vHff  
Time waI?X2  
1. Over the course of the past 30 years, .. has emerged form intuitive s|F}Abx,^  
2. Technological revolutions have recently hit the industrial world fn.KZ  
3. The advent of ... systems for has had a significant impact on the OL]P(HRm]~  
4. The development of ... is explored X-LCIT|1  
5. During the past decade, the theory of fuzzy sets has developed in a -fpe  
variety of directions 0DtewN{Z  
6.The concept of xx was investigated quite intensively in recent years W*S}^6ZT`  
7. There has been a turning point in ... methodology in accordance _PT5  
with the advent of ... GT.1,E ,Vw  
8. A major concern in ... today is to continue to improve... dUN{@a\R0  
9. A xx is a latecomer in the part representation arena. =mR~\R( I  
)X |[ jP  
10. At the time of this writing, there is still no standard way of xx mi[t1cN)=  
11. Although a lot of effort is being spent on improving these JfD-CoQS'  
weaknesses, the efficient and effective method has yet to be fi%)520  
developed. YI+ clh;%9  
12. The pioneer work can be traced to xx [1965]. Q^\m@7O :  
13. To date, none of the methods developed is perfect and all are far u7&q(Z&&O  
from ready to be used in commercial systems. #[ f]-c(!  
Objective / Goal / Purpose {p\ll  
1. The purpose of the inference engine can be outlined as follows: /H4Z.|@  
2. The ultimate goal of the xx system is to allow the non-experts to e!W U  
utilize the existing knowledge in the area of manual handling of loads, u mT *  
and to provide intelligent, computer-aided instruction for xxx. K|pg'VT"  
3. The paper concerns the development of a xx r>: ~!o*  
4. The scope of this research lies in >``sM=Wat  
5. The main theme of the paper is the application of rule-based "QD>m7  
decision making. 3r VfBz  
6. These objectives are to be met with such thoroughness and YMN=1Zuj?  
confidence as to permit ... NSawD.9mV  
7. The objectives of the ... operations study are as follows: I i9[[I  
8. The primary purpose/consideration/objective of u6nO\.TTtY  
9. The ultimate goal of this concept is to provide \sBXS.  
10. The main objective of such a ... system is to '-U&S  
11. The aim of this paper is to provide methods to construct such _aeIK  
probability distribution. 2FR+Z3&z  
12. In order to achieve these objectives, an xx must meet the +GJPj(S  
following requirements: >?Duz+W)  
13. In order to take advantage of their similarity {J1iheuS}  
14. more research is still required before final goal of ... can be 7fI2b,~  
completed @Jx1n Q^  
15. In this trial, the objective is to generate... 7u{V1_ n1  
16. for the sake of concentrating on ... research issues Fc#Sn2p*  
17. A major goal of this report is to extend the utilization of a recently E!'6v DVC:  
developed procedure for the xx. G6QD`ED  
ZIKSHC9  
18. For an illustrative purpose, four well-known OR problems are k".kbwcaF  
studied in presence of fuzzy data: xx. QM![tZt%;  
19. A major thrust of the paper is to discuss approaches and o$eo\X?J?  
strategies for structuring ..methods O\CnKNk,  
20. This illustration points out the need to specify ^,0Lr$+  
21. The ultimate goal is both descriptive and prescriptive. RIQ-mpg~(k  
22. Chapter 2. Literature Review /oW]? 9  
23. A wealth of information is to be found in the statistics literature, 6DU~6c=)  
for example, regarding xx r<'DS9m  
24. A considerable amount of research has been done .. during the ~`Rar2%B  
last decade YA@MLZm  
25. A great number of studies report on the treatment of cnS;9=,&  
uncertainties associated with xx. 81"` B2  
26. There is considerable amount of literature on planning LPBa!fq  
27. However, these studies do not provide much attention to d)S`.Q  
uncertainty in xx. Ml$<x"Q  
28. Since then, the subject has been extensively explored and it is Fsm6gE`|n  
still under investigation as well in methodological aspects as in ~+j2a3rv-{  
concrete applications. MT"&|Og  
29. Many research studies have been carried out on this topic. #bBh. ^  
30. Problem of xx draws recently more and more attention of system }NoP(&ebz*  
analysis. PxgJ7d  
31. Attempts to resolve this dilemma have resulted in the [al$sCD]+  
development of WPkKbF  
32. Many complex processes unfortunately, do not yield to this z~X /.>  
design procedure and have, therefore, not yet been automated. g9q}D-  
33. Most of the methods developed so far are deterministic and /or CvmIDRP*  
probabilistic in nature. SOq:!Qt  
34. The central issue in all these studies is to t))MZw&@  
35. The problem of xx has been studied by other investigators, v+"4YIN  
however, these studies have been based upon classical statistical yw$4Hlj5  
approaches. PBnH#zm  
36. Applied ... techniques to m)} 01N4  
37. Characterized the ... system as iX6>u4~(  
| bz%SB  
38. Developed an algorithm to \?>M?6D  
39. Developed a system called ... which i4,p\rE0  
40. Uses an iterative algorithm to deduce y7M{L8{0  
41. Emphasized the need to 4[@YF@_=M  
42. Identifies six key issues surrounding high technology EC; >-s  
43. A comprehensive study of the... has been undertaken vo`&  
44. Much work has been reported recently in these filed ?' .AeoE-  
45. Proposed/Presented/State that/Described/Illustrated/ 1'\QD`M9^  
Indicated/Has shown / showed/Address/Highlights @2/|rq  
46. Point out that the problem of 3}<U'%sd  
47. A study on ...was done / developed by [] Bj1%}B  
48. Previous work, such as [] and [], deal only with  vUJ; D  
49. The approach taken by [] is /T)E&=Ds  
50. The system developed by [] consists 0o=HOCL\  
51. A paper relevant to this research was published by [] 7bzm5w@v  
52. []'s model requires consideration of... 6sSwSS  
53. []' model draws attention to evolution in human development 4MzQH-U>/  
54. []'s model focuses on...  ~2"hh$  
55. Little research has been conducted in applying ... to GYfOwV!zB  
56. The published information that is relevant to this research... P[ WkW#  
57. This study further shows that &bW,N  
58. Their work is based on the principle of l,7& z  
59. More history of ... can be found in xx et al. [1979]. kun/KY  
60. Studies have been completed to established Sl G v  
61. The ...studies indicated that R J{$` d  
62. Though application of xx in the filed of xx has proliferated in ;Z d_2 CZ  
recent years, effort in analyzing xx, especially xx, is lacking. +:.Jl:fx4  
Problem / Issue / Question e{5?+6KH  
63. Unfortunately, real-world engineering problems such as qh~bX i!  
manufacturing planning do not fit well with this narrowly defined D=-}&w_T"  
model. They tend to span broad activities and require consideration Q?k *3A  
of multiple aspects. TlS? S+  
64. Remedy / solve / alleviate these problems :+,;5  
67. ... is a difficult problem, yet to be adequately resolved b&U1^{(  
z%YNZ ^d  
68. Two major problems have yet to be addressed a:)FWdp?9  
69. An unanswered question H2s:M  
70. This problem in essence involves using x to obtain a solution. HY)xT$/J  
71. An additional research issue to be tackled is .... ! I@w3`  
72. Some important issues in developing a ... system are discussed ST*h{:u&A  
73. The three prime issues can be summarized: fHup&|.  
74. The situation leads to the problem of how to determine the ... )hZ7`"f,ZN  
75. There have been many attempts to %e E^Y<@g  
76. It is expected to be serious barrier to d. wGO]"  
77. It offers a simple solution in a limited domain for a complex /MF 7ZvN.  
problem. c@t?R$c  
1. There are several ways to get around this problem. #d-({blo<  
2. As difficult as it seems to be, xx is by no means new. ~rb0G*R>  
3. The problem is to recognize xx from a design representation. X.fVbePxUU  
4. A xx problem can trace its roots to xx. ^PZ[;F40  
5. xx [1987] used a heuristic approach to simplify the complexity of PM\Ju]  
the problem. FU3K?A B  
6. Several problems are associated with them. +F; 2FD$  
7. Although some progress has been made in this area, at least two QtW9!p7(  
major obstacles must be overcome before a fully automated system ]RCo@QW  
can be realized. t? GH V3V  
8. Most problems in practice are complicated {[H_Vl@  
9. More problem surface here. g&$=Y7G  
10. Hamper effort toward a xx system _?c.m*)A  
11. In order to overcome the limitations due to incomplete and }'oU/@yG  
imprecise xx knowledge, a xx program has been developed, which C%o|}iv"  
bases its knowledge upon the statistical analysis of a sample -zg*p&F  
population of xx Lw>B:3e  
12. The above difficulties are real challenges faced by researchers }t)+eSUA  
attempting to develop .vu7$~7  
13. This type of mapping raises no controversy to the issue of /q9I^ztV  
membership function determination. f;e#7_  
14. However, attempts to quantify the xx have met both theoretical C]L)nCOBX  
and empirical problems. )CFJ Xc:  
A!lZyG!3  
15. It has become apparent that in order to apply this new Af|h*V4Xu  
methodological framework to real-world problems and data, we have v vErzUxN  
to pay attention to the problems of xx and xx. (?qCtLZ  
Chapter 3. Proposed methodology ytcLx77`:  
Assumption m%|\AZBA#  
1. In the case when the assumption of a xx seems to be too %KQ1{"  
restrictive or inadequate, the formulation with Fuzzy termination ,P~e)<.  
time, i.e. given by a fuzzy set in the space of control stages, may be I-#!mFl  
applied. 4:V +>Jt  
2. We assume here the fuzzy constraints to be state-dependent, and *l_a=[<[  
the fuzzy goal to be the same for all the control states, xx, which %S312=w  
stems from the problem's nature. P y'BMk  
3. An approach to the solution of this problem is presented under the 4&*lpl*N  
assumption that the sampling rate Decision can be made prior to the ZX_QnSNZ?  
execution of the experiment, as opposed to being made while the }9@rhW  
experiment is in progress. {\$S585  
4. Another assumption made above is that there are precise odds at t #(NfzN  
which the expert is indifferent. Y9abRr K  
5. Main simplifying assumptions are: neEqw +#Z  
6. This, in our view, is a questionable assumption. SzLlJUVX  
Outline / Structure / Module %pZT3dcK  
1. An outline of the research fN9{@)2Mz  
2. Information is incorporated within the scheme U N?tn}`!  
3. Is built into ... structure ]y OM  
4. A nice modular structure. 6C$+D  
5. The principles of ... are applied as modularized criteria H VM %B{(  
Classification / qQx~doK  
1. A xx system comprises three main components: icG 9x  
2. Must decompose the original .. into a set of .. wU%uO/sU9  
3. Consists of the following steps: tN{0C/B9  
4. This is summarized in the following steps: H [+'>Id:  
;8H&FsR  
5. Can be broadly classified into the following areas: VmQ^F| {  
6. Can be characterized by its function of effectively processing the h x^@aI  
7. Can allow further breadth of application of ...into more P.(UbF d'  
8. The following steps should be followed ,I iKe_B  
9. xx can be classified by a different ways. X[J<OTj`$  
10. Based on the xx, one may classify xx into the following: 1=]#=)+  
11. This catalog may change due to wear, breakage, and purchasing. PCCE+wC6  
System ejg!1*H@n  
1. Unlike many conventional program, expert systems do not B)k/]vz)*D  
usually deal with problem for which there is clearly a right or wrong T:j41`g%s  
answer. 2-S}#S}2C  
2. The system consists of both ... and ... ufR|V-BWx  
3. The system has a hierarchical modular architecture organized on #W:.Fsq  
three levels. #cR5k@  
4. expert system domains are area of expertise ;4+z~7Je]^  
5. To develop a xx system for xx, the following factors must be T c-fO /0  
considered: V xN!Ki=  
6. The system has been developed / designed to determine Q8TR@0d  
7. The system has proven to be able to 319 4]  
8. The domain in which an expert system operates is a particular @>`N%wH'  
domain 6heK8*.T  
9. The system comprises a ... with @V4nc 'o.  
10. The system is [feature-oriented ] / based on the ... technique 25G~rk lk  
11. The system environment must be relatively stable NX8w(~r,:  
12. The system is utilized to generate, load, store, update and #E4oq9{0*W  
retrieve ... 6/a%%1c1  
13. The development of a xx system has two stages: xx stage and xx B"7~[,he  
stage. Xk^<}Ep)c  
14. The most essential part of .. system is the ... 1\TkI=N3  
15. The successful developments in ESs have made them an c3fd6Je5  
important tool in the development of *R&77 o7  
16. An automated system was developed for D<Z\6)|%I  
17. In this case, the system can be considered to be generative. Y(JZP\Tf_N  
} BP.t$_  
18. An interactive automatic ... system p,4S?c r>a  
19. A …. is commonly thought of as a truly integrated .. system yr zyus  
20. Should be capable of being generated from a ... system %z1hXh#+  
21. xx is an important part of the integrated system. f]+. i-c=  
22. The model consists of four rule bases, each of which addresses a qE^u{S4Z@  
separate problem in the hierarchy of scheduling decision. Lz- (1~o  
23. The rule bases are linked to each other in a chin-like manner in Kt#X'!9/<  
the sense that the consequent of one rule base constitutes a part of 6%VRQ#g!  
the antecedent of the next rule base. <l)I% 1T_c  
24. The rule base consists of all possible combinations of the o<S(ODOfi  
linguistic terms associated with the linguistic variable of the =rNI&K_<  
antecedent of a rule. w= "  
Computer System %Y].i/".;P  
1. The system has been implemented using Prolog language in an B?XqH_=0L  
MS-DOS environment. Prolog was chosen because it offers a well } AHR7mu=  
known and flexible environment in which fuzzy reasoning may be ~ Q;qRx  
easily implemented. 'k$j^ |r>  
2. The current version of the xx program when compiled with DTV"~>@  
WATFOR77 results in an executable code of about 270K bytes. Gy[m4n~Z5  
Typical run time, when run on a XX computer (an IBM compatible BG20R=p  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min gM#]o QOGE  
to 2h, depending on the size (or complexity) of the problem. dBp)6ok#c  
3. Time consuming procedures have been implemented in y}lqF8s  
C-language and directly linked to the Prolog environment. :'gX//b):  
4. The xx process, once the xx's data has been entered, requires G C3G=DTt  
approximately 180 seconds. U{.yX7  
5. It should be noted that the computation was done with a 20 Hhz, #ruL+- 8!<  
80386..209;based microcomputer equipped with a 80387 math w`K=J!5y2g  
co-processor. 7%^ /Jm  
6. The computer programs used for the analyses, one based on the xx LZ*ZXFIg  
method and the other based on the new method, were written in vZt48g  
FORTRAN with a compiler that supports the math co-processor. ;l=ZW  
7. Lisp, Prolog give maximum flexibility but also maximizes (E?X@d iu  
EJ`"npU  
development time. >FM2T<.;  
l Internal representation is the way a model is represented in the qm=N@@R&  
computer. pbePxOG  
l An interactive menu-driven procedure is used in this study <2>Qr(bb  
l Shell can be develop very fast at the cost of time fairly severe Z |CL:)h  
limitations. mXXU{IwUe  
l While there is no measurable saving of time for the case involving w0L+Sj db  
five criteria, the saving is dramatic for the case involving 10 criteria [kyIF\0  
-- the computation time reduces from 10 hr 40 min to about 1 min. o79EDPX  
l This combination is being implemented in an objected-oriented `8D}\w<eI  
programming environment (Smalltalk-80 system) to solve problems z 8\z`#g!  
encountered in construction xxx. 3=~0m  
Method / Approach / Study / Process Model / Equation /Algorithm / j>-O'CO  
Rule / Formula / Technique wXnluE  
l A discussion is presented of a problem-solving system ]3iQpL  
l To improve the efficiency of the method, the following approach zBTyRL l  
may be applied. &;]KntxB  
l In order to an investigation was made to find the causes of the UiLiy?EJ  
l Although large collections of rules and equations have been B6#^a  
complied, none are generally accepted  )tW0iFY  
l This approach will be explained and discussed thoroughly in the I c 2R\}q  
body of the report. .>Fy ]Cqoh  
l This can be accomplished by <UC_QPA\  
l This algorithm to compute the total cost can be described step by 6w Y6* R  
step as follows: ,`O.0e4pn  
l The above preliminary analysis has provided important lqoJ2JMy  
information Qaeg3f3F3  
l Various methods have been proposed for selecting an optimum... H%z9VJ*!0  
l These concepts have been applied to ]n9gnE  
l On the basis of the concept mentioned above, >`(]&o6<$  
l This can be achieved by $]t3pAI[H0  
l This fact suggests that a new concept O4.`N?Xq  
l This was accomplished by taking ... r#X6jU  
g/f^|:  
l The preparatory stage is very time consuming process. ]oIP;J:&  
l Test are performed for validity, completeness, and compatibility @&xWd{8'  
l There is little hope of achieving successful ... '`nf7b(  
l There has been an increasing awareness of the potential of using z iTE*rNJ  
most ..so far made have not taken this approach, with the exception BDiN*.w5  
of /fDXO;tN  
l Only a few studies can be found. +Cg[!6[#  
l It is a very tedious process to go through fDD^?/^  
l It is only when .. has been completed that .. may be effected *P0sl( &  
l The entire interpretation process is conducted in one's head. PyQ P K,  
l These approaches are sometimes very tedious. * ,#SwZ  
l Several techniques can be used #)b0&wyW6i  
l A polynomial parametric model can be written as [the mP[ZlS~"  
following]/[follows]: q)rxv7Iu\  
l A xx model is constructed/formulated using xx. &X&msEM  
l A xx model represents an xx by its xx. C=,O'U(ep  
l A process decision model captures the logic essential to R.P|gk  
l From the equation above, xx is equal to the summation of xx 1}ER+;If  
times the ... g ?OC-zw  
l The validity of a xx model can be checked using Euler's formula. /k^!hI"4c  
l Given a model, one can mathematically determine whether ... or ... -a\[`JHi  
l Equations for xx need to be derived and implemented in the h}&1 7M  
system. Tx:S{n7&  
l A number of heuristic rules have been developed for A(6n- zL  
l Optimum .. techniques can be made more reliable by ... so that fq4[/%6,O  
l An algorithm based on the characteristic ... is used to determine w tSX(LN Y  
l Euler's formula states the following: mZ0'-ax   
l The completed model should agree with the formula. aaRc?b'/  
l For manufacturing purposes, a detailed and precise model of the B:rzM:BQ  
object is necessary g(QT"O!dY  
l Engineering design models are very well defined; therefore, 7&w$@zs87  
l To keep the domain narrow enough to be implementable, yet wide ,.]1N:   
enough to #M@Ki1  
be useful. \$W\[s 4I  
w{89@ XRC  
Point of View Z# o;H$  
l from an implementation standpoint, S'}pUGDO  
l From the point of view of this application, " 3tk"#.#  
l From this point of view, Zadeh suggested an inference rule named w42=tN+ B  
xxx (CRI for short). Xv2Q8-}w  
l Information is the meaningful interpretation and correlation of V(wANvH  
some aggregation of data in order to allow one to make decisions. 1+v!)Y>Z&  
l From a practical point of view, the computational aspects of an [yx8?5  
FLC require a simplification of the fuzzy control algorithm. @FaK/lKK  
l The use of a hammer to insert screws, although partly effective, 0P l>k'9  
tends to distort, destroy, and generally defeat the purpose of using a LXS)(-&  
screw [Kusiak AI Implications for CIM p.129] 6H ^=\  
Justification ;5&=I|xqe  
l We choose the so called xx in our experiment because it has 2g HRfTF  
received wide acceptance and can )R6-]TkA_  
l Prolog was chosen because it offers a well known and flexible 71G\b|5  
environment in which fuzzy reasoning may be easily implemented. cP^c}e*;NS  
l The rationale behind this is that it can be much easier for an qQp;i{X  
estimator to rate a cost as high than to attempt to place a dollar P2 fiK  
value on the estimate. J936o3F_  
l This strategy has been widely used in fuzzy control applications EI8KKo *  
since it is natural and easy to implement. aSt:G*a"  
l A function definition expresses the membership function of a &~V6g(9  
fuzzy set in a functional form, typically a bell-shaped function, etc. X86r`}  
Such functions are used in FLC because they lead themselves to bkS-[rW  
manipulation through the use of fuzzy arithmetic. l#&\,T  
l It should be noted that in our daily life most of the information on j2s{rQQ  
which our decisions are based is linguistic rather than numerical in \pVNJ y$`<  
nature. Seen in this perspective, fuzzy control rules provide a natural cv"Bhql  
framework for the characterization of human behavior and decisions &0RKNpw g  
analysis. @y8) "m"  
l Many experts have found that fuzzy control rules provide a _18Aek   
:aR_f`KMm  
convenient way to express their domain knowledge. This explains {r?+PQQ#  
why most FLCs are based on the knowledge and experience which ]iry'eljy  
are expressed in the language of fuzzy "if-the" rule. n K6(0?/  
Chapter 4. Examples ~(}n d  
Example/ Data |Ge!;v  
l The data used in the following example was taken from an +6s6QeNS8  
experiment in which xx was measured between x and x using a xx B4{F)Zb  
technique. ~\u~>mtchu  
l The data consists of over xx measurements. =U}!+ 8f  
l An example of xx is discussed and the control rules of xx are +\RviF[+  
compared with a xx &H/3@A3  
l Examples of complex processes to which this technique may be Rts.jm>[  
applied are xx, xx, etc. GRAPv|u9[  
l The following example is constructed only for the purpose of ~Gh9m ]b  
illustrating the computational procedure discussed. C,$7fW{?  
l This example clearly demonstrates that the profile of an individual V Ku|=m2vB  
xx, or a very small group of xx, with no enough data to be studied qv 8B$}FU  
statistically, can be meaningfully analyzed by fuzzy possibilistic ' pfkbmJ  
methods. f<v Z4 IU  
l There is no space here to go into detail on all these methods, but UVD*GsBk  
deserve a mention and the bibliography will point to detailed y-_IMu.J`  
references for those wishing this level of detail. ;eC8| Xz  
l Note that the golf ball spotting example is used throughout the K QCF "  
paper. }8Nr .gY  
Comparisons ,@aF#  
l As well, the pros and cons of these representations from a process L DdgI  
planning point of view will be discussed. cD9.L  
l The method of using xx to implement xx described by Zadeh C:RA (  
(1973) appeared more suitable .F@ 2C  
l As discussed [in the previous section]/[preciously], J'*`K>wV  
CPJ%<+4%b  
Relation bl[2VM7P  
l We can not invert F' directly because it defines a many-to-one mBDzc(_\$'  
mapping. Ex5 LhRe>=  
l The relationships appear very complicate ),Igu  
l Lifting tasks involve complex and imprecise relationship between ADB,gap  
the task variables and the human operator's characteristics. )odz/\9n3c  
l These methods are based on the relationship between ... and ... afye$$X  
l The fundamental concept of a fuzzy rating language is that we can T *rz#O  
establish a relationship among terms such as high, medium, and low, '19 kP.  
and then modify these relationships. QVe<Z A8N;  
l This article will thus mention the latter as well as the former. T26'b .  
l The former two bear a close relation to a fuzzy Cartesian product. d8VFa'|  
Importance iM~qSRb#mJ  
l The emphasis is on an implementation of a general approach to >uJU25)|  
rule based decision making. s:^Xtox /  
Consideration / Attention 6eW9+5oL  
l Careful evaluation is necessary to ensure GoPK. E$  
l Such a formulation does not change further considerations. G,X UMZ  
l Considerable attention has been paid to W=2#Q2)  
l Attention should be paid to an important finding of this <Gz*2i  
investigation. F`57;)F  
l Caution should be exercised in this process to avoid ... k];fQ7}m<0  
l Primary consideration is given to ... components, though others Q=#Wk$1.  
can be accommodated c6LPqPcN  
l After ... has been defined by ..., a carefully analysis is carried jiP^Hz"e  
out/performed to determine o_PQ]1  
l A number of factors such as ...need to be taken into consideration >RXDuCVi  
before making the appropriate decision. / a$B8,  
l It should be noted that z`Xc] cPi  
l It is important to point out that ... IvM>z03  
l These considerations have heightened interest in the possibility of TTz_w-68  
providing ... c)zwyBz  
zOMU&;.\  
l We should stress the fundamental importance of the xx AmBLZ<f;  
Chapter 5. Results. N6!$V7oT  
Advantages / Disadvantage bw OG|\  
l One of the major advantages of this new measure of xx is that it N@\`DO  
can be applied to the experimental study of =yLJGNK[  
l One advantage of using a .. is the ease of preparing it. $mF9os-  
l The xx system is versatile WS 1#i\0  
l It has a very fast decision making process CF/8d6}Vf  
l All the algorithms involve mostly logical operations. 4_h?E:sBb  
l It can be easily and without additional cost implemented in a S"Drg m.  
microprocessor-based environment. U].3vju`c  
l It can reduce the waste of designing from scratch. YUQKy 2  
l The advantages of using a xx to represent xx are the following: N_f>5uv  
l However, xx is not without its shortcomings. |Q*{yvfEo  
l In most cases, the xxx shows an improvement over the existing OsNJ; B  
xxx. d2Ox:| <)  
l Compared to the existing xx, the impacts of the xx are generally ++Fk8R/$U[  
reduced by 5% to 9%. Q a3+9  
l The "best case" results shows a savings of 6% to 9%. \Qei}5P,  
l Most of the existing works based on xx approach can only lIgAc!q(  
recognize a xx . E{}Vi>@V?  
l Most of the above methods are computational expansive and )UAkg  
limited to xx. u]s}@(+.  
l Some other advantages of xx are the following: MUvgmJsN  
l The problem is the limitation of this method to a limited domain of R6-Z]H u  
parts. {V5eHn9/Q'  
l It proved limited in application because it demanded precision in TqTz  
system modeling that was impossible in practice. ::2(pgH  
l There are advantages to be gained in the structuring of costs and esK0H<]  
benefits, the use of xx, )9z3T>QW  
l The disadvantages of this method are also disadvantages of > 0.a#-u^  
conventional xx approaches. p _q ]Rt  
IHvrx:7   
l This combines the best features of both techniques n0tVAH'>  
l Hopefully, this tool can be as the reference framework of for 6tv-PgZ  
developing a xx platform, and helping the administration, marketing, )_\q)t"=  
and knowledge management activities in virtual communities. >!%F$ $  
Results I#9q^,,F  
l An improvement on the result shown above can be made by based /'Q2TLy=  
on the data provided &M*f4PeXb  
l Discussion of these theories is beyond the scope of this review Bd>a"3fA  
l Based on the information contained in this U['|t<^uf  
l The result can be categorized into nine classes jC_m0Iwc  
l The results are illustrated by an example D=:O ^<  
l The experimental results for each xx time are reported in Table 2. C7xmk;c w  
l From the results obtained so far, it seem that 5Z a%EaW%G  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn raCgctYVq  
as j-9Zzgr  
l Although much effort has been made to., this reality is far from JpC_au7CX  
completion. tl+ 9SBl  
l The results indicate that the total benefits are higher than the W+u-M>Cj6  
total costs. YK%rTbB(  
l Their results may then serve as guidelines for lower level models, yrQf PR  
less fuzzy and more detailed. vfloha p  
Chapter 6. Conclusion MeW?z|x`'  
l From the discussion, one may conclude that ... #8@o%%F d  
l Form the above discussion, the conclusion can be reached that w'7=CzfYn  
l The conclusions drawn are also valid ^vha4<'-qG  
l In conclusion to this, it becomes obvious that the problem of xx 4rrR;V"}  
lies not only in... =SV b k  
l We have attempted to introduce some concepts associated with a #dDM "s  
theory of O#?@' 1  
xx based on fuzzy sets. z#^;'n nw  
l Considerable more work, hopefully, will be done in this area ug^esB  
l A fuzzy set procedure is proposed to solve xx selection problems f[wxt n'r  
QJ2D C  
interwoven with imprecise data D hD^w;f]  
l Employing the compositional rule of inference, the assessment of }No8to  
the xx compatibility in achieving prescribed xx projectiles in any  {[dY$  
level of the hierarchy is made possible. ip!-~HNwJ  
l This paper has presented a theoretical and experimental study of -{A*`.[v  
the xx process and xx concept. Z7p!YTA  
l The experimental research results will hopefully serve as useful uF+0nv+  
feedback information for improvements for xx work. pD;fFLvN  
l The scope of this contribution was to introduce a xx method. .I.B,wH 8  
l In general, fuzzy sets theory provides an alternative foundation lRR A2Kql  
for xx analysis in a fuzzy environment. Y`rl i  
Future Research u(i=-PN_<  
l Thus, first extension of the approach could be, v1z d[jqk  
l Present some cues for a further approach from Fuzzy Sets Theory Q2[; H!"  
application to GglGFXOL-  
l Some improvements to the scheduling aspect of the model may nx{MUN7  
be brought through additional levels in the hierarchy for more wKKQAM6P1  
detailed representation of the scheduling activity. <QD[hO^/  
Tables and Figures @Gt.J*!s/  
l Figure 7-1 sketches these relationships. e, fZ>EJ  
l The graphical representation of these functions is shown in Figure -5JN`  
1. %77uc9}  
l The xx may be depicted as in Figure 1. 9{ #5~WP  
l Figure x shows the schematic diagram of the }(7TiCwd  
l Figure 1 though 2 provide a ... that +lxjuEiae  
l the architecture of this expert system for .... is illustrated in Figure 8OiCldw:HN  
2. M.+h3<%^  
l Figure 2 gives the outline of an ... system xpc{#/Nk  
l Table shows the uVTacN%X  
l as shown in Table 1 and 2 fUr%@&~l^  
l This concept is illustrated in Figure 2 [+Fajo;0  
l At the top of Table xx are shown two blocks of data. W^)mz,%x  
)Xa_ry7  
l Each table or matrix has constructs xx through xx as Ho =vdB  
row-headings, U p6OCF  
xx through xx as column-headings. FPH2dN  
l A table of .. is developed and significant recommendations are QO^V@" N  
made. \Y>b#*m(4  
CONJUGATION .]s? 01Z  
To Indicate Addition (Ldvx_  
l additionally, again, also, and then, as can be easily understood, 1wFW&|>1  
besides, equally important, especially, finally, for the same reason, A*~G[KC3(  
first, further, furthermore, in addition, last, likewise, moreover, next, YC')vv3o(  
second, third, too, evidently, obviously, roughly speaking, broadly /QWXEL/M=  
speaking dNhb v zl(  
To Indicate Cause and Effect L""ZI5J{F9  
l accordingly, as a result, consequently, for this reason, hence, in IT{c:jo1{`  
short, otherwise, then, therefore, thus, truly cc3B}^@p=  
To indicate Comparison #/o~h|g  
l in a like manner, likewise, similarly , alternatively W=3#oX.GsU  
To Indicate Concession _ xTpW  
l after all, although this may be true, at the same time, even though, n~]"sTC}&  
even so , I admit, naturally, of course _cE_\Ay  
To Indicate Contrast 1G7l+6w5~^  
l and yet, at the same time, but, for all that, however, yet, in fact, in :L@n(bu RN  
contrast, in the real life, in spite of, nevertheless, notwithstanding, fLqjBG] <  
normally, on the contrary, on the other hand, still, traditionally, #>("(euXMF  
rather, unfortunately, NLK 1IH#  
To Indicate Time Relationships: jLM([t  
after a short time, afterwards, as indicated earlier, as long as, as soon z=) m6\  
C\;l)h_{  
as, at last, at length, at the moment, at that time, at the same time, rR :ZTfJs"  
before, earlier, currently, immediately, in the meantime, in recent v@tEHRadz  
years, lately, later, meanwhile, often, of late, presently, recently, |Z94@uB  
soon, shortly, since, thereupon, temporarily, therefore, until, when, >5#}/G&  
while  $8rnf  
To Indicate Special Features or Examples: nAWb9Yk  
for example, for instance, incidentally, indeed, in fact, in other words, ^h$*7u"^y  
in particular, in practice, specifically, that is, to illustrate, in this l= p_  
respect, theoretically, as mentioned before / above P%lD9<jED  
To Indicate Summary: d\nXK#)Q  
in brief, in conclusion, in short, in summary, on the whole, to  ?bVIH?  
conclude ,AweHUEn  
, in general, to summarize, to sum up, as a result, ultimately, uR :EH.K  
VERB PHASE V%s7*`U  
l build a .. model ioD8-  
l build up the key link XDJE]2^52?  
l began a new era in ... U %s@np  
l can be regarded as / achieved / used to/for / found / obtained +4_,, I  
through zP%s]>hH  
l can result in G|f9l?p  
l carries out ... tasks &&9 |;0 <  
l production information in order to simultaneously ,{HQKHg  
l contains all information necessary to describe b(GV4%  
l do not make use of production information zp;!HP;/=  
l deals with r[i^tIv6As  
l end with failure $ ubU"  
l fetch the information from the model directly v#qdq!64  
l has great potential / yet to be resolved / spurred the qx5`lm~L  
development of / |T""v_q  
been recognized as g= $U&Hgs  
l BE aimed at / built up / carried out by / essentially concerned GLtd<M"  
n8<?<-2  
with / considered to be the key technology / associated with each d j\Z}[  
feature of a compo T<pG$4_  
site component / cable of / currently implemented for / Ah w i  
demonstrated by an example / finally reached / made equal to / tJ6@Ot  
equivalent to / more suitable to / oriented to / interpreted as / s;9Du|0f^  
pointed out / potentially of great benefit in the complex task of / 4tZ*%!I'  
shown in / used to effectively guide the search B>L7UQ6_[  
l makes use of 88osWo6rG  
l make up ,XO@ZBOM  
l meets the needs of real life production,/ the current demands xc#t8`  
placed upon it p3U)J&]c6  
l must be justified SUUNC06V  
l point out c9-$^yno  
l play an important role =8T!ldVxES  
l relates to 1 jidBzu<  
l rely on 58s-RO6  
l satisfy the needs 4]U=Y>\Sr  
l determine the total requirements for the ... _U^[h!  
l uses ... as a key to search for... d^}p#7mB\  
l without relying on (kLaXayn  
l will be available/ performed/ overlooked #-'`Yb w  
NOUN PHASE [;z\bV<S  
l a basic technical function of !l $d^y345  
l a critical need Czjb.c:a.Y  
l a key / principle feature of d%8n   
l a substantial impact on $t;:"i>  
l an intensive review was conducted 'v]0;~\mp>  
l an increasing need for expanding the application of .... ;l *%IMB  
l an important component / function / aspect / issue PeIx41. +s  
l each rule is numbered in sequence h=A  
l each of these involves .2E/(VM  
l for this calculation, it is necessary to define <_xG)vwh.  
l in the physical environment / integration of >N|?>M*  
qf x*a88  
l in the reality of situations where … M1/d7d  
l many aspects of m%[e_eS  
l most past efforts have been spent on ... (.:*GUg  
l common sense to a well studied and documented technical field. lJdBUoO  
l sources of additional information on ... are listed X9Ch (nWX  
l systematic and rationally structured format =>;&M)+q  
l the basis on which a range of ...operations can be established is r%=-maPL[  
shown 2GptK"MrD  
l THE basic philosophy / principles of / key element / general  cHvm  
hypothesis / candidate list of / concept of ... has attracted wide b{<?E };%  
interest / function is concerned with / heart / impact / nature / role -hXKCb4YU  
/ task of / kernel functions E]mm^i`|  
l the number of parts needed to \ \k=N(n  
l the above statement means that Lk !)G'42  
l the output data is passed to V?M (exN  
l the proposed method / underlying principle A08kwYxiW  
l the recommendations made in this report, if implemented, should M(a%Qk?]/  
l this information resides in 9G/!18 X?f  
l this process is composed of ... different ... operation $2a"Ec!7  
l along with the use of ]6e(-v!U  
l concerning general aspects of r? /Uu &  
l due to u!K1K3T6k  
l for later use in generating..., ^VXhv9\>B  
l in turn, zFjz%:0  
l IT IS believed / noted / assumed / suggested / shown / quite p^8a<e?f~f  
evident / appears / implies that / intended for / of no important to  >:-e  
l it can be claimed/concluded that vaB ql(?'2  
l it demonstrates the decisions required of S~3|1Hw*tN  
l it also provides information to .. 7 FE36Ub9  
l it becomes essential to (\F9_y,6*\  
l let ... be the probability that tczJk1g}  
l once... is written, it is compiled into... ]Kt@F0U<o  
l suppose it is observed that q}t]lD %C  
l this is because (p5q MP] L  
gML8lu0)  
l this results in a 1b~21n  
l upon completion of the ... analysis, p-i Fe\+  
l when the knowledge is of mathematics or quantum physics, it will Z^>4qf,k  
also be $eFMn$o  
recorded in books and papers j,.M!q]  
l selection of rules for using the tools, for generating operation G?}?> O  
plans, Dz0D ^(;V  
is another matter of preference, since practice varies greatly. v":q_w<k  
l for the sake of convenience RHFRN&RU$  
l correct decision to be reach {d.z/Buu  
l keeping the number of rules to a minimum. ,1{qZ(l1  
l a good process plan will result exhibiting several characteristics: ui>jJ(  
l practical solutions W/,bz",v3  
l because of rather small job lot sizes Odo)h  
l Backward reasoning can be used to answer the question "should +E</A:|}S  
milling tool be select" different level of knowledge in the realm of @/:4beh  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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