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主题 : 英语论文写作常用经典句型
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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 PHQ{-b?4t  
2}^+ ]5  
i Td-n9  
Beginning ;EK(b  
1. In this paper, we focus on the need for mWNR(()v  
2. This paper proceeds as follow. )r ULT$;i@  
3. The structure of the paper is as follows.  qovQ9O  
4. In this paper, we shall first briefly introduce fuzzy sets and related ,+~2&>wj  
concepts e&d3SQ%  
5. To begin with we will provide a brief background on the 0r1g$ mKb  
Introduction g<f P:/  
1. This will be followed by a description of the fuzzy nature of the ppEJs  
problem and a detailed presentation of how the required CNut{4  
membership functions are defined. e{5,'(1]  
2. Details on xx and xx are discussed in later sections. }xqXd%uz  
3. In the next section, after a statement of the basic problem, various LaDY`u0G%  
situations involving possibility knowledge are investigated: first, an |H:<:*=6c  
entirely possibility model is proposed; then the cases of a fuzzy 8zAg;b [  
service time with stochastic arrivals and non-fuzzy service rule is P Q,+hq  
studied; lastly, fuzzy service rule are considered. TaOOq}8c#  
Review D%A@lMru  
1. This review is followed by an introduction. tR<L`?4  
2. A brief summary of some of the relevant concepts in xxx and xxx is 2\5cjdy  
presented in Section 2. 4Hk6b09  
3. In the next section, a brief review of the .... is given. va^0JfQ  
4. In the next section, a short review of ... is given with special regard wk@yTTnb  
to ... l]$40 j  
5. Section 2 reviews relevant research related to xx. LP,9<&"<  
6. Section 1.1 briefly surveys the motivation for a methodology of Q&gPa]z]}  
action, while 1.2 looks at the difficulties posed by the complexity of {|XQO'Wg  
systems and outlines the need for development of possibility ]% Y\ZIS  
methods. iD<6t_8),  
Body HVGr-/  
1. Section 1 defines the notion of robustness, and argues for its ,%Z&*n  
H*rx{F?  
importance. Pcdf$a"`  
2. Section 1 devoted to the basic aspects of the FLC decision-making Px#$uU  
logic. -;>#3 O-  
3. Section 2 gives the background of the problem which includes xxx (Xo SG  
4. Section 2 discusses some problems with and approaches to, f>z`i\1oO  
natural language understanding. f;wc{qy  
5. Section 2 explains how flexibility which often ... can be expressed + T2HE\  
in terms of fuzzy time-window o%`npi1y  
6. Section 3 discusses the aspects of fuzzy set theory that are used in q{E"pyt36R  
the ... ?/'}JS(Sm  
7. Section 3 describes the system itself in a general way, including P"F{=\V1`<  
the ….. and also discusses how to evaluate system performance. *b"CPg/\  
8. Section 3 describes a new measure of xx. h!e2 +4{4{  
9. Section 3 demonstrates the use of fuzzy possibility theory in the <uD qYT$6  
analysis of xx. O R #7"  
10. Section 3 is a fine description of fuzzy formulation of human %hINpZMr  
decision. DMd ,8W7a  
11. Section 3 is developed to the modeling and processing of fuzzy P+Z\3re  
decision rules hD q2-X}  
12. The main idea of the FLC is described in Section 3 while Section 4 V"#Jk!k9k  
describes the xx strategies. b/<mRQ{  
13. Section 3 and 4 show experimental studies for verifying the DZs^ 2Zc  
proposed model. mW4%2fD[  
14. Section 4 discusses a previous fuzzy set-based approach to cost `FJ|W6%  
variance investigation. .Xd0 Q=1h  
15. Section 4 gives a specific example of xxx. B4yh3cf  
16. Section 4 is the experimental study to make a fuzzy model of S&?7K-F>_o  
memory process. A#DR9Eq  
17. Section 4 contains a discussion of the implication of the results of ?`AGF%zp  
Section 2 and 3. kus}W  J  
18. Section 4 applies this fuzzy measure to the analysis of xx and BU6Jyuwn  
illustrate its use on experimental data. r{[OJc!  
19. Section 5 presents the primary results of the paper: a fuzzy set , 2`~ N Pb  
model .. %8FN0  
;7rv  
20. Section 5 contains some conclusions plus some ideas for further >I<PO.c!  
work. <1@ (ioPH  
21. Section 6 illustrates the model with an example. v0@)t&O  
22. Various ways of justification and the reasons for their choice are ;>ozEh#8w  
discussed very briefly in Section 2. JNo8>aFOb  
23. In Section 2 are presented the block diagram expression of a _x %1F  
whole model =u|~ <zQw  
of human DM system pbn\9C/  
24. In Section 2 we shall list a collection of basic assumptions which sN/+   
a ... scheme must satisfy. Zdn!qyR`  
25. In Section 2 of this paper, we present representation and 8MZ$T3IM  
uniqueness theorems for the fundamental measurement of fuzziness A3+6 #?:;  
when the domain of discourse is order-dense. /Ox)|) l  
26. In Section 3, we describe the preliminary results of an empirical `|Fp^gM  
study  CL3xg)x6  
currently in progress to verify the measurement model and to urZ8j?}c  
construct membership functions. lG"H4Aa>  
27. In Section 5 is analyzed the inference process through the two u$\a3yi  
kinds of inference experiments... EW(J5/mn  
This Section 'uC59X4l  
1. In this section, the characteristics and environment under which PRr*]$\&Mj  
MRP is designed are described. Ijedo/  
2. We will provide in this section basic terminologies and notations `ROG~0lN(  
which are necessary for the understanding of subsequent results. LWmB, Zf/  
Next Section 3 ^}A %-bS  
2. The next section describes the mathematics that goes into the $>w/Cy  
computer implementation of such fuzzy logic statements. {o|k.zy  
3. However, it is cumbersome for this purpose and in practical ijW 7c+yd  
applications the formulae were rearranged and simplified as [1( FgyE  
discussed in the next section. r"]'`qP,  
4. The three components will be described in the next two section, AsxD}Nw[Z*  
and an example of xx analysis of a computer information system will 7%d8D>uw8  
.C!vr@@]  
then illustrate their use. )K0i@hM(n  
5. We can interpret the results of Experiments I and II as in the .-]R9KjR1J  
following sections. @x{`\AM|%  
6. The next section summarizes the method in a from that is useful `_qK&&s  
for arguments based on xx pn%#w*'  
Summary a.kbov(  
1. This paper concludes with a discussion of future research jRj=Awy  
consideration in section 5. I.V:q!4*  
2. Section 5 summarizes the results of this investigation. >k(MUmhX  
3. Section 5 gives the conclusions and future directions of research. K1q+~4>\|  
4. Section 7 provides a summary and a discussion of some extensions j^SZnMQf  
of the paper. (03pJV&K  
5. Finally, conclusions and future work are summarized y8 E}2/  
6. The basic questions posed above are then discussed and w*!wQ,o  
conclusions are drawn. 46x.i;b7  
7. Section 7 is the conclusion of the paper. [r-}bp'Gp  
Chapter 0. Abstract r o\1]`6  
1. A basic problem in the design of xx is presented by the choice of a Z" v <0]rN  
xx rate for the measurement of experimental variables. 8l+H"M&|  
2. This paper examines a new measure of xx in xx based on fuzzy 8OFj0S1r`  
mathematics which overcomes the difficulties found in other xx 9lzQ\}  
measures. IOl+t,0x&  
3. This paper describes a system for the analysis of the xx. |+f-h,  
4. The method involves the construction of xx from fuzzy relations. 9;=dxWf   
5. The procedure is useful in analyzing how groups reach a decision. LR&_2e^[  
6. The technique used is to employ a newly developed and versatile m#5_%3T  
xx algorithm. ]\c,BWC@e  
7. The usefulness of xx is also considered. c:4P%({  
8. A brief methodology used in xx is discussed. K~6e5D7.  
9. The analysis is useful in xx and xx problem. [c&B|h=>  
10. A model is developed for a xx analysis using fuzzy matrices. cDk V;$  
11. Algorithms to combine these estimates and produce a xx are i!H!;z#  
S\x=&Rz  
presented and justified. L36Yx7gT<  
12. The use of the method is discussed and an example is given. \OwpD,'  
13. Results of an experimental applications of this xx analysis pmc=NTr&<  
procedure are given to illustrate the proposed technique. 5 t{ja  
14. This paper analyses problems in kuMKX`_  
15. This paper outlines the functions carried out by ... p .K*UP  
16. This paper includes an illustration of the ... _^S]gmE  
17. This paper provides an overview and information useful for |(R5e  
approaching l|`^*%W@u6  
18. Emphasis is placed on the construction of a criterion function by =?Fkn4t  
which the xx in achieving a hierarchical system of objectives are [AzO:A  
evaluated. Pcd *">v  
19. The main emphasis is placed on the problem of xx :QQlI  
20. Our proposed model is verified through experimental study. Ub$n |xn  
21. The experimental results reveal interesting examples of fuzzy # J\rv'  
phases of: xx, xx /Ft:ffR|R  
22. The compatibility of a project in terms of cost, and xx are likewise B;#J"6w  
represented by linguistic variables. W[''Cc.  
23. A didactic example is included to illustrate the computational y0bq;(~X~  
procedure 'xK.U I  
Chapter 1. Introduction 8G^<[`.@j  
Time j6:7AH|!)2  
1. Over the course of the past 30 years, .. has emerged form intuitive \}*k)$r  
2. Technological revolutions have recently hit the industrial world wEft4 o  
3. The advent of ... systems for has had a significant impact on the Jl<ns,Zg  
4. The development of ... is explored f>9s!Hpu_  
5. During the past decade, the theory of fuzzy sets has developed in a ,I.WX,OR  
variety of directions VU.@R,  
6.The concept of xx was investigated quite intensively in recent years a|j%n  
7. There has been a turning point in ... methodology in accordance . )XP\ m\  
with the advent of ... *#U+qgA;`  
8. A major concern in ... today is to continue to improve... PA;6$vqX  
9. A xx is a latecomer in the part representation arena. _wDS#t;!M  
kyw/LE3$-  
10. At the time of this writing, there is still no standard way of xx T )~9Wac  
11. Although a lot of effort is being spent on improving these G5.nPsuM   
weaknesses, the efficient and effective method has yet to be F'm(8/A$  
developed. v} JD2.O+  
12. The pioneer work can be traced to xx [1965]. gN6rp(?y  
13. To date, none of the methods developed is perfect and all are far 2{,n_w?Wy  
from ready to be used in commercial systems. '_P\#7$!MV  
Objective / Goal / Purpose _banp0ywS  
1. The purpose of the inference engine can be outlined as follows: cu!W4Ub<  
2. The ultimate goal of the xx system is to allow the non-experts to  Y k7-`  
utilize the existing knowledge in the area of manual handling of loads, tiPa6tQ  
and to provide intelligent, computer-aided instruction for xxx. vdDludEv  
3. The paper concerns the development of a xx m} ?rJ  
4. The scope of this research lies in vxQ8t!-u  
5. The main theme of the paper is the application of rule-based t(!r8!c u}  
decision making. revF;l6->C  
6. These objectives are to be met with such thoroughness and Q^Ql\  
confidence as to permit ... !5@_j,lW(  
7. The objectives of the ... operations study are as follows: bizTd  
8. The primary purpose/consideration/objective of TJ8E"t*)  
9. The ultimate goal of this concept is to provide 2S3lsp5!  
10. The main objective of such a ... system is to Z#l%r0(o  
11. The aim of this paper is to provide methods to construct such D#A~Nbc  
probability distribution. 2aA`f7  
12. In order to achieve these objectives, an xx must meet the g?v\!/~(u  
following requirements: g.J N_ t5  
13. In order to take advantage of their similarity "<+ih0Ma  
14. more research is still required before final goal of ... can be `IpA.| Y  
completed E`H$YS3o  
15. In this trial, the objective is to generate... 2f`nMW  
16. for the sake of concentrating on ... research issues 3l<S}k@M)  
17. A major goal of this report is to extend the utilization of a recently jDM w2#<  
developed procedure for the xx. dBV7Te4L  
q*![AzFh  
18. For an illustrative purpose, four well-known OR problems are Si 9Z>MR  
studied in presence of fuzzy data: xx. ^04Q%,  
19. A major thrust of the paper is to discuss approaches and >N\0"F7.  
strategies for structuring ..methods $eV$2p3H  
20. This illustration points out the need to specify RC|!+ TD  
21. The ultimate goal is both descriptive and prescriptive. 8n BL\{'B[  
22. Chapter 2. Literature Review |wEN`#.;b  
23. A wealth of information is to be found in the statistics literature, ik|-L8  
for example, regarding xx (KZHX5T=  
24. A considerable amount of research has been done .. during the lDC$F N  
last decade aq+Y7IR_  
25. A great number of studies report on the treatment of !|q<E0@w\  
uncertainties associated with xx. Q(d9n8  
26. There is considerable amount of literature on planning cH-@V<  
27. However, these studies do not provide much attention to G'zF)0oD  
uncertainty in xx. M}_ i52  
28. Since then, the subject has been extensively explored and it is w:Jrmx  
still under investigation as well in methodological aspects as in @\oz4^  
concrete applications. G iq=*D+  
29. Many research studies have been carried out on this topic. cr?7O;,  
30. Problem of xx draws recently more and more attention of system 1CPjil*eb  
analysis. dt[k\ !-v  
31. Attempts to resolve this dilemma have resulted in the KV|}#<dD  
development of Zn,>]X  
32. Many complex processes unfortunately, do not yield to this S.B<pj gt  
design procedure and have, therefore, not yet been automated. 7f<EoSK  
33. Most of the methods developed so far are deterministic and /or zL5d0_E9  
probabilistic in nature. 2 nb:)  
34. The central issue in all these studies is to (3[z%@I  
35. The problem of xx has been studied by other investigators, S1_6C:^k  
however, these studies have been based upon classical statistical .yT8NTu~0j  
approaches. %8aC1x  
36. Applied ... techniques to  4RK W  
37. Characterized the ... system as N3t0-6$_  
dX8hpQ  
38. Developed an algorithm to iFSJL,QZ3  
39. Developed a system called ... which B:"THN^  
40. Uses an iterative algorithm to deduce .%'(9E  
41. Emphasized the need to p3ISWJa!  
42. Identifies six key issues surrounding high technology Ub0/r$]DK  
43. A comprehensive study of the... has been undertaken VZ>On$hp  
44. Much work has been reported recently in these filed 3QI?[R.  
45. Proposed/Presented/State that/Described/Illustrated/ kE.x+2  
Indicated/Has shown / showed/Address/Highlights #8{F9w<Rf  
46. Point out that the problem of )f+U~4G&  
47. A study on ...was done / developed by [] {^{p,9  
48. Previous work, such as [] and [], deal only with y#Ht{)C  
49. The approach taken by [] is 0U66y6  
50. The system developed by [] consists -3Avs9`5  
51. A paper relevant to this research was published by [] S gMrce<;  
52. []'s model requires consideration of...  O#nR>1h  
53. []' model draws attention to evolution in human development E< 4l#Z<  
54. []'s model focuses on... zWw2V}U!  
55. Little research has been conducted in applying ... to n<Svw a}  
56. The published information that is relevant to this research... `&M{cfp_  
57. This study further shows that u{&B^s)k.  
58. Their work is based on the principle of z!= P@b  
59. More history of ... can be found in xx et al. [1979]. QH4wUU3X  
60. Studies have been completed to established Ap&)6g   
61. The ...studies indicated that (VvKGh  
62. Though application of xx in the filed of xx has proliferated in fkfZ>D^1  
recent years, effort in analyzing xx, especially xx, is lacking. ||2Q~*:  
Problem / Issue / Question qv 3^5 d  
63. Unfortunately, real-world engineering problems such as 5yh/0i5|  
manufacturing planning do not fit well with this narrowly defined |6biq8|$3V  
model. They tend to span broad activities and require consideration y;" n9  
of multiple aspects. 9D@$i<D:  
64. Remedy / solve / alleviate these problems +5<k-0v  
67. ... is a difficult problem, yet to be adequately resolved ydl jw  
,zcQS-e2  
68. Two major problems have yet to be addressed  hRaf#  
69. An unanswered question qOCJTOg7  
70. This problem in essence involves using x to obtain a solution. 5G}6;UY  
71. An additional research issue to be tackled is .... tury<*  
72. Some important issues in developing a ... system are discussed : 2V^K&2L  
73. The three prime issues can be summarized: B,$l4m4  
74. The situation leads to the problem of how to determine the ... KcGsMPJ  
75. There have been many attempts to O[~x_xeW  
76. It is expected to be serious barrier to KHiFJ_3  
77. It offers a simple solution in a limited domain for a complex R5Yl1   
problem. T~4mQuYi  
1. There are several ways to get around this problem. r2*<\ax  
2. As difficult as it seems to be, xx is by no means new. `ue[q!Qq  
3. The problem is to recognize xx from a design representation. 6y+b5-{'  
4. A xx problem can trace its roots to xx. XaI;2fMGI  
5. xx [1987] used a heuristic approach to simplify the complexity of 7 l8[xV  
the problem. 8Vl!|\x5  
6. Several problems are associated with them. f*((;*n ;  
7. Although some progress has been made in this area, at least two Os),;W0w4  
major obstacles must be overcome before a fully automated system X'sEE  
can be realized. 4z4v\IpB  
8. Most problems in practice are complicated PB'0?b}fab  
9. More problem surface here. ,krS-.  
10. Hamper effort toward a xx system [5ethM  
11. In order to overcome the limitations due to incomplete and I@7/jUO  
imprecise xx knowledge, a xx program has been developed, which Y)HbxFF`/  
bases its knowledge upon the statistical analysis of a sample <HoAj"xf  
population of xx t\y-T$\\  
12. The above difficulties are real challenges faced by researchers W^g'}}]T  
attempting to develop Eek9|i"p  
13. This type of mapping raises no controversy to the issue of 3P=w =~e  
membership function determination. >Wi s.e%b  
14. However, attempts to quantify the xx have met both theoretical ;b~~s.+  
and empirical problems. aO1IVESr$  
," R>}kPli  
15. It has become apparent that in order to apply this new ?C;JJ#Ho  
methodological framework to real-world problems and data, we have pG yRX_;  
to pay attention to the problems of xx and xx. >9( i)e  
Chapter 3. Proposed methodology L7q |^`  
Assumption V/y=6wUiSl  
1. In the case when the assumption of a xx seems to be too ,seFkG@1  
restrictive or inadequate, the formulation with Fuzzy termination J?jeYW   
time, i.e. given by a fuzzy set in the space of control stages, may be Es;;t83p  
applied. 1%eLs=u?  
2. We assume here the fuzzy constraints to be state-dependent, and 8~5|KO >F  
the fuzzy goal to be the same for all the control states, xx, which Z=9dMND  
stems from the problem's nature. 79tJV  
3. An approach to the solution of this problem is presented under the `pYE[y+  
assumption that the sampling rate Decision can be made prior to the lIq~~cv)  
execution of the experiment, as opposed to being made while the ^Kw(& v  
experiment is in progress. ;D&wh  
4. Another assumption made above is that there are precise odds at ZjD2u 8e  
which the expert is indifferent. >B~?dTm  
5. Main simplifying assumptions are: +{ab1))/  
6. This, in our view, is a questionable assumption. r}@< K  
Outline / Structure / Module 4~WlP,,M  
1. An outline of the research yS"0/Rm}  
2. Information is incorporated within the scheme }rxFS <j  
3. Is built into ... structure m?vAyi  
4. A nice modular structure. Ap,q ` S  
5. The principles of ... are applied as modularized criteria MZi8Fo'  
Classification <w11nB)  
1. A xx system comprises three main components: \]GGVI ;u  
2. Must decompose the original .. into a set of .. A'v[SUW'm  
3. Consists of the following steps: %>NRna  
4. This is summarized in the following steps: h=mv9=x  
:O#gJob-%s  
5. Can be broadly classified into the following areas: -CZ-l;5  
6. Can be characterized by its function of effectively processing the x k#*=  
7. Can allow further breadth of application of ...into more >hesxC!  
8. The following steps should be followed ,dq`EsHg`M  
9. xx can be classified by a different ways. W.sD2f  
10. Based on the xx, one may classify xx into the following: Jz2 q\42q  
11. This catalog may change due to wear, breakage, and purchasing. 33S`aJ  
System n7'<3t  
1. Unlike many conventional program, expert systems do not  pe|\'<>i  
usually deal with problem for which there is clearly a right or wrong :4b- sg#  
answer. _c,&\ wl$  
2. The system consists of both ... and ... lHRK'? Q  
3. The system has a hierarchical modular architecture organized on 4v i B=>  
three levels. uFa-QG^Y{  
4. expert system domains are area of expertise (jt*u (C&Y  
5. To develop a xx system for xx, the following factors must be Zr~"\llk  
considered:  &s_}u%iC  
6. The system has been developed / designed to determine ~9]Vy (L  
7. The system has proven to be able to ">0 /8]l  
8. The domain in which an expert system operates is a particular $::51#^Wg  
domain k0R, !F  
9. The system comprises a ... with 7Co3P@@  
10. The system is [feature-oriented ] / based on the ... technique 8VKb*  
11. The system environment must be relatively stable !$4Q]@ }  
12. The system is utilized to generate, load, store, update and d;IJ0xB+by  
retrieve ...   U5T^S  
13. The development of a xx system has two stages: xx stage and xx :a#|  
stage. GXGN;,7EV  
14. The most essential part of .. system is the ... nau~i1  
15. The successful developments in ESs have made them an P DNt4=C  
important tool in the development of Sf# \6X<B  
16. An automated system was developed for jLpgWt`8)E  
17. In this case, the system can be considered to be generative. ;w>Q{z  
lU >)n  
18. An interactive automatic ... system b*9m2=6  
19. A …. is commonly thought of as a truly integrated .. system zSX'  
20. Should be capable of being generated from a ... system $u(M 4(}  
21. xx is an important part of the integrated system. 0YgFjd 5  
22. The model consists of four rule bases, each of which addresses a F=' jmiVJ  
separate problem in the hierarchy of scheduling decision. IX > j8z[  
23. The rule bases are linked to each other in a chin-like manner in T= iZ9w  
the sense that the consequent of one rule base constitutes a part of @Wlwt+;fT  
the antecedent of the next rule base. l[ZQ7$kL  
24. The rule base consists of all possible combinations of the T/X?ZK(T  
linguistic terms associated with the linguistic variable of the ; +#za?w  
antecedent of a rule. k1@  A'n  
Computer System Q*oA{eZY  
1. The system has been implemented using Prolog language in an j.G.Mx"  
MS-DOS environment. Prolog was chosen because it offers a well .T N`p*  
known and flexible environment in which fuzzy reasoning may be -X6\[I:+A  
easily implemented. 3e!a>Gl*  
2. The current version of the xx program when compiled with 8/kx3  
WATFOR77 results in an executable code of about 270K bytes. 6>P  
Typical run time, when run on a XX computer (an IBM compatible 4N0W& Dy  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min hIg,  0B  
to 2h, depending on the size (or complexity) of the problem. !D|pbzQc8  
3. Time consuming procedures have been implemented in DftGy:Ah3  
C-language and directly linked to the Prolog environment. !<UEq`2  
4. The xx process, once the xx's data has been entered, requires SBYMDKZ  
approximately 180 seconds. ]R3pBC"Jv  
5. It should be noted that the computation was done with a 20 Hhz, &xMJ^Nv  
80386..209;based microcomputer equipped with a 80387 math 4q 2=:"z4  
co-processor. ^|hRu{Q W  
6. The computer programs used for the analyses, one based on the xx :6Pc m3  
method and the other based on the new method, were written in `__?7"p )\  
FORTRAN with a compiler that supports the math co-processor. $'mB8 S  
7. Lisp, Prolog give maximum flexibility but also maximizes :\w[xqH  
P.H/H04+  
development time. ba)YbP[  
l Internal representation is the way a model is represented in the p9] 7g%  
computer. "!_ 4%z-  
l An interactive menu-driven procedure is used in this study K1wN9D{t'  
l Shell can be develop very fast at the cost of time fairly severe _)Z7Le:f!  
limitations. 1&dsQ, VDl  
l While there is no measurable saving of time for the case involving Hpo?|;3D5  
five criteria, the saving is dramatic for the case involving 10 criteria 'rq#q)1MT  
-- the computation time reduces from 10 hr 40 min to about 1 min. p31rhe   
l This combination is being implemented in an objected-oriented elHarey`f  
programming environment (Smalltalk-80 system) to solve problems q?]@' ^:;  
encountered in construction xxx. _>)"+z^r  
Method / Approach / Study / Process Model / Equation /Algorithm / u$@I/q,ou  
Rule / Formula / Technique |I^Jn@Mq:  
l A discussion is presented of a problem-solving system eYX_V6c  
l To improve the efficiency of the method, the following approach C.e|VzQa  
may be applied. F C - *?  
l In order to an investigation was made to find the causes of the mW(_FS2%,  
l Although large collections of rules and equations have been _x|8U'|Ce  
complied, none are generally accepted <GmrKdM  
l This approach will be explained and discussed thoroughly in the 96E7hp !:  
body of the report. wj5s5dH  
l This can be accomplished by BNoCE!  
l This algorithm to compute the total cost can be described step by Ac(irPrD  
step as follows: BG?2PO{  
l The above preliminary analysis has provided important GvtI-\h]  
information e%0#"6}  
l Various methods have been proposed for selecting an optimum... b|@op>UZ  
l These concepts have been applied to CZ%"Pqy&1L  
l On the basis of the concept mentioned above, ]B'  
l This can be achieved by *>*/|  
l This fact suggests that a new concept lGBdQc]IL  
l This was accomplished by taking ... Z q>.;>  
v%~ViO gL\  
l The preparatory stage is very time consuming process. _p2<7x i   
l Test are performed for validity, completeness, and compatibility [gr[0aGBc  
l There is little hope of achieving successful ... "8dnFrE  
l There has been an increasing awareness of the potential of using &r%^wfp  
most ..so far made have not taken this approach, with the exception @!NHeH=pR  
of aNU%OeQA  
l Only a few studies can be found. X.Y)'qSf  
l It is a very tedious process to go through rL/7wa  
l It is only when .. has been completed that .. may be effected \ iSBLU  
l The entire interpretation process is conducted in one's head. SLA~F?t  
l These approaches are sometimes very tedious. !)3Su=*R  
l Several techniques can be used {v/6|  
l A polynomial parametric model can be written as [the -^Va]Lk  
following]/[follows]: -7VV5W  
l A xx model is constructed/formulated using xx. 6T_c#G5  
l A xx model represents an xx by its xx. "jMnYEG  
l A process decision model captures the logic essential to /`@>v$oo  
l From the equation above, xx is equal to the summation of xx EPnB%'l\c  
times the ... iPYlTV  
l The validity of a xx model can be checked using Euler's formula. )`7h,w J[1  
l Given a model, one can mathematically determine whether ... or ... ,OAWGFKOp  
l Equations for xx need to be derived and implemented in the - $/{V&?t  
system. >G7U7R}R  
l A number of heuristic rules have been developed for HjR<4;2  
l Optimum .. techniques can be made more reliable by ... so that 5LH ]B  
l An algorithm based on the characteristic ... is used to determine 9DKB+K.1  
l Euler's formula states the following: xWV7#Z7  
l The completed model should agree with the formula. "!?Ya{  
l For manufacturing purposes, a detailed and precise model of the jK1! \j  
object is necessary Xxw.{2Ji!q  
l Engineering design models are very well defined; therefore, _ RT}Ee}Y  
l To keep the domain narrow enough to be implementable, yet wide .1}(Bywm5  
enough to s yvi/6  
be useful. -3 Hq1  
D~>P/b)v{j  
Point of View r6G)R+#  
l from an implementation standpoint, =v9;HPiO  
l From the point of view of this application, d a9 *>+[  
l From this point of view, Zadeh suggested an inference rule named hi uPvi}  
xxx (CRI for short). `#U6`[[  
l Information is the meaningful interpretation and correlation of f#mpd]e+6  
some aggregation of data in order to allow one to make decisions. N%y FL  
l From a practical point of view, the computational aspects of an krU2S-  
FLC require a simplification of the fuzzy control algorithm. "'(4l 2.  
l The use of a hammer to insert screws, although partly effective, E SI}+  
tends to distort, destroy, and generally defeat the purpose of using a =c'LG   
screw [Kusiak AI Implications for CIM p.129] d-aF-  
Justification H++rwVwj#h  
l We choose the so called xx in our experiment because it has MiRB*eA  
received wide acceptance and can -d]z_ SP@  
l Prolog was chosen because it offers a well known and flexible xB#E&}Ho  
environment in which fuzzy reasoning may be easily implemented. K(^x)w r-:  
l The rationale behind this is that it can be much easier for an I( e>ff  
estimator to rate a cost as high than to attempt to place a dollar ~S9nLb:O{  
value on the estimate. Oc>- jhx?  
l This strategy has been widely used in fuzzy control applications F )G#\r  
since it is natural and easy to implement. 2_Qzc&"[ 4  
l A function definition expresses the membership function of a Z:Wix|,ONS  
fuzzy set in a functional form, typically a bell-shaped function, etc. F 7=-k/k  
Such functions are used in FLC because they lead themselves to ~+F: QrXcI  
manipulation through the use of fuzzy arithmetic. =|V 3cM4'  
l It should be noted that in our daily life most of the information on 6yU~^))bx  
which our decisions are based is linguistic rather than numerical in zV]0S o  
nature. Seen in this perspective, fuzzy control rules provide a natural !Zrvko  
framework for the characterization of human behavior and decisions |w5#a_adM  
analysis. E$T#o{pai  
l Many experts have found that fuzzy control rules provide a *=8)]_=f  
4}CRM# W2  
convenient way to express their domain knowledge. This explains _F,OS<>  
why most FLCs are based on the knowledge and experience which ^$(|(N[;   
are expressed in the language of fuzzy "if-the" rule. ;u%hwlo  
Chapter 4. Examples I'gnw~  
Example/ Data D7 @10;F}[  
l The data used in the following example was taken from an Z#Fw 1  
experiment in which xx was measured between x and x using a xx /X?Nv^Hy  
technique. X}ZOjX!  
l The data consists of over xx measurements. g^idS:GtX5  
l An example of xx is discussed and the control rules of xx are %bsdC0xM  
compared with a xx 5*CwQJC<  
l Examples of complex processes to which this technique may be yDKX,  
applied are xx, xx, etc. m} V,+E  
l The following example is constructed only for the purpose of bhI8b/  
illustrating the computational procedure discussed. )-9/5Z0v  
l This example clearly demonstrates that the profile of an individual kO4C^pl"v  
xx, or a very small group of xx, with no enough data to be studied 5u&jNU5m_  
statistically, can be meaningfully analyzed by fuzzy possibilistic )*uI/E  
methods. suVS!} C  
l There is no space here to go into detail on all these methods, but pp:+SoyN  
deserve a mention and the bibliography will point to detailed "[%NXan  
references for those wishing this level of detail. P)H%dJ ^l  
l Note that the golf ball spotting example is used throughout the A kF1Hj  
paper. D H/1 :H  
Comparisons ed{9UJWh  
l As well, the pros and cons of these representations from a process LP87X-qkjW  
planning point of view will be discussed. >?kt3.IQ!X  
l The method of using xx to implement xx described by Zadeh O-7 \qz  
(1973) appeared more suitable xS.0u"[  
l As discussed [in the previous section]/[preciously], -,rl[1ZYZ  
ZpZ~[BtQ  
Relation iU3co|q7  
l We can not invert F' directly because it defines a many-to-one )&w\9}B:  
mapping. cO <x:{`  
l The relationships appear very complicate ,^'Y7"  
l Lifting tasks involve complex and imprecise relationship between Mn=_lhW K  
the task variables and the human operator's characteristics. IXH;QwR:  
l These methods are based on the relationship between ... and ... 3~ qgvAr  
l The fundamental concept of a fuzzy rating language is that we can xNx!2MrR;  
establish a relationship among terms such as high, medium, and low, 3(C UC  
and then modify these relationships. Ar\`OhR  
l This article will thus mention the latter as well as the former. h\yYg'CC  
l The former two bear a close relation to a fuzzy Cartesian product. ZJx:?*0a  
Importance $k!t&G  
l The emphasis is on an implementation of a general approach to Pukq{/27  
rule based decision making. v"s}7trWV  
Consideration / Attention F6fm{  
l Careful evaluation is necessary to ensure DO0["O74  
l Such a formulation does not change further considerations. d+/d)cu  
l Considerable attention has been paid to q'W`t>2 T  
l Attention should be paid to an important finding of this 7qs[t7-h?  
investigation. b]J_R"}  
l Caution should be exercised in this process to avoid ... te:@F]A  
l Primary consideration is given to ... components, though others WJ mj|$D  
can be accommodated D,J's(wd  
l After ... has been defined by ..., a carefully analysis is carried `B^?Za,xN  
out/performed to determine $ biCm$a  
l A number of factors such as ...need to be taken into consideration |vGz 1jLV  
before making the appropriate decision. H1q>UU:  
l It should be noted that \n/_ Px  
l It is important to point out that ... BB~Qs  
l These considerations have heightened interest in the possibility of G66vzwO   
providing ... R|Ykez!D  
TG'A'wXxy  
l We should stress the fundamental importance of the xx 2p@S-Lp  
Chapter 5. Results. +]B^*99  
Advantages / Disadvantage WM9QC59  
l One of the major advantages of this new measure of xx is that it <~f/T]E,  
can be applied to the experimental study of YsLEbue   
l One advantage of using a .. is the ease of preparing it. "bRck88V  
l The xx system is versatile F%L^k.y$  
l It has a very fast decision making process Y]ZOvA5W  
l All the algorithms involve mostly logical operations. cl^tX%  
l It can be easily and without additional cost implemented in a ZSHc@r*>  
microprocessor-based environment. +|\dVe.  
l It can reduce the waste of designing from scratch. qksN {t  
l The advantages of using a xx to represent xx are the following: e>Is$+[`7  
l However, xx is not without its shortcomings. YQ2ie>C8  
l In most cases, the xxx shows an improvement over the existing :MpIx&  
xxx. L1M]ya!l  
l Compared to the existing xx, the impacts of the xx are generally Xv6z>z.  
reduced by 5% to 9%. X8F _Mb*  
l The "best case" results shows a savings of 6% to 9%. v?5Xx{ym  
l Most of the existing works based on xx approach can only J*qepq`_  
recognize a xx . c.,eIiL  
l Most of the above methods are computational expansive and A'p"FYlCW  
limited to xx. hAKyT~[n0  
l Some other advantages of xx are the following: 7DXT1+t  
l The problem is the limitation of this method to a limited domain of (\>_{"*=  
parts. 0g~WM  
l It proved limited in application because it demanded precision in vD^^0-Pk6  
system modeling that was impossible in practice. f!eC|:D  
l There are advantages to be gained in the structuring of costs and rN8 ZQiJC  
benefits, the use of xx, t&eY+3y,T  
l The disadvantages of this method are also disadvantages of }mk9-7  
conventional xx approaches. B$_F)2%m;  
Ilsh Jo  
l This combines the best features of both techniques <j-Bj$3  
l Hopefully, this tool can be as the reference framework of for coiTVDwA  
developing a xx platform, and helping the administration, marketing, t-3wjS1v  
and knowledge management activities in virtual communities. R1\cAP^ 0  
Results WQ|d;[E  
l An improvement on the result shown above can be made by based *.~hn5Y|?  
on the data provided !s9<%bp3  
l Discussion of these theories is beyond the scope of this review fZ 17  
l Based on the information contained in this 6WzE'0Nyr  
l The result can be categorized into nine classes WB"$NYB  
l The results are illustrated by an example 9L*gxI>  
l The experimental results for each xx time are reported in Table 2. )U`H7\*)  
l From the results obtained so far, it seem that \Llrs-0 M  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn 4qrPAt  
as 8n,i5>!d  
l Although much effort has been made to., this reality is far from L/c$p`-  
completion.   rPZ<  
l The results indicate that the total benefits are higher than the <u&uwD~A  
total costs. 6jO*rseC  
l Their results may then serve as guidelines for lower level models, .KIAeCvl\  
less fuzzy and more detailed. m Wsegq4  
Chapter 6. Conclusion jcYI"f"~  
l From the discussion, one may conclude that ... t'Nu^_#  
l Form the above discussion, the conclusion can be reached that Y L;ZZ2A  
l The conclusions drawn are also valid T= ox;r  
l In conclusion to this, it becomes obvious that the problem of xx q(\$-Dk.Vv  
lies not only in... >hRYsWbmg  
l We have attempted to introduce some concepts associated with a &bRmr/D  
theory of /ZvNgaH5M  
xx based on fuzzy sets. 6aX m9 J  
l Considerable more work, hopefully, will be done in this area Vj:)w<] ,  
l A fuzzy set procedure is proposed to solve xx selection problems t8U)za  
0d9rJv}~  
interwoven with imprecise data 23U9+  
l Employing the compositional rule of inference, the assessment of %_@8f|# ,M  
the xx compatibility in achieving prescribed xx projectiles in any Ipb 4{A&"\  
level of the hierarchy is made possible. YzhZ%:8  
l This paper has presented a theoretical and experimental study of WLDt5R  
the xx process and xx concept. u8~.6]Ae  
l The experimental research results will hopefully serve as useful q ^n6"&;*  
feedback information for improvements for xx work. "3Ag+>tuRW  
l The scope of this contribution was to introduce a xx method. r&o%n5B  
l In general, fuzzy sets theory provides an alternative foundation [ }jSx]  
for xx analysis in a fuzzy environment. IE|x+RBD  
Future Research [77]0V7  
l Thus, first extension of the approach could be, j8hb  
l Present some cues for a further approach from Fuzzy Sets Theory TJ?}5h5  
application to Kcsje_I-M  
l Some improvements to the scheduling aspect of the model may (x&#>5  
be brought through additional levels in the hierarchy for more L((z;y>q|  
detailed representation of the scheduling activity. j<"0ym)A  
Tables and Figures 8{4I6;e-  
l Figure 7-1 sketches these relationships. 6Ck?O /^  
l The graphical representation of these functions is shown in Figure >|.jG_s  
1. : b $ M  
l The xx may be depicted as in Figure 1. $Z.c9rY1  
l Figure x shows the schematic diagram of the 0b?9LFd  
l Figure 1 though 2 provide a ... that dQ/Xs.8  
l the architecture of this expert system for .... is illustrated in Figure qf4|!UR{  
2. LL9I:^  
l Figure 2 gives the outline of an ... system s^L\hr  
l Table shows the h*_r=' E  
l as shown in Table 1 and 2 rH8?GR0<  
l This concept is illustrated in Figure 2 14s+ &  
l At the top of Table xx are shown two blocks of data. ;#~rd8Z52  
*v8Cj(69  
l Each table or matrix has constructs xx through xx as hYb!RRGn  
row-headings, } ..}]J;To  
xx through xx as column-headings. 5C#&vYnq  
l A table of .. is developed and significant recommendations are T{?!sB3  
made. _.?$~;7  
CONJUGATION hCW8(Z t  
To Indicate Addition sAnStS=>  
l additionally, again, also, and then, as can be easily understood, #<yR:3  
besides, equally important, especially, finally, for the same reason, wQPjo!FEX  
first, further, furthermore, in addition, last, likewise, moreover, next, DFE?H  
second, third, too, evidently, obviously, roughly speaking, broadly "=P@x|I  
speaking M={k4r_t  
To Indicate Cause and Effect Yw?%>L   
l accordingly, as a result, consequently, for this reason, hence, in s49 AF  
short, otherwise, then, therefore, thus, truly qI8{ JcFx:  
To indicate Comparison !Aj_r^[X`  
l in a like manner, likewise, similarly , alternatively 5x=tOR/h  
To Indicate Concession al#yc  
l after all, although this may be true, at the same time, even though, 89'nbg  
even so , I admit, naturally, of course }{j[  
To Indicate Contrast L.+5`&  
l and yet, at the same time, but, for all that, however, yet, in fact, in hb`b Q  
contrast, in the real life, in spite of, nevertheless, notwithstanding, "z@q G]#5  
normally, on the contrary, on the other hand, still, traditionally, _W]3_1Lu  
rather, unfortunately, U{i9h6b"18  
To Indicate Time Relationships: ;}^Pfm8  
after a short time, afterwards, as indicated earlier, as long as, as soon e:NzpzI"v  
-!wm]kx f  
as, at last, at length, at the moment, at that time, at the same time, H'Z[3e  
before, earlier, currently, immediately, in the meantime, in recent zx;x@";p  
years, lately, later, meanwhile, often, of late, presently, recently, s&8QRI.  
soon, shortly, since, thereupon, temporarily, therefore, until, when, qC`"<R=GX  
while )M'#l<9B  
To Indicate Special Features or Examples: Ao?H.=#y  
for example, for instance, incidentally, indeed, in fact, in other words, P%%Cd  
in particular, in practice, specifically, that is, to illustrate, in this nCXIWLw  
respect, theoretically, as mentioned before / above NoDq4>   
To Indicate Summary: "+saI@G  
in brief, in conclusion, in short, in summary, on the whole, to `~pB1sS{  
conclude Hdj0! bUx  
, in general, to summarize, to sum up, as a result, ultimately, Z*s/%4On  
VERB PHASE tEBf2|<  
l build a .. model .+{nfmc,c  
l build up the key link s+Ln>c'|o  
l began a new era in ... 1`B5pcuI  
l can be regarded as / achieved / used to/for / found / obtained /M B0%6m  
through kwZ C 3p\\  
l can result in >N+e c_D^  
l carries out ... tasks a,lH6lDk  
l production information in order to simultaneously  X-~Q  
l contains all information necessary to describe >n vreis  
l do not make use of production information 8m-jU 5u  
l deals with P,D >gxl  
l end with failure 83;1L:}`  
l fetch the information from the model directly _.Uz!2  
l has great potential / yet to be resolved / spurred the jwAO{.}T1r  
development of / +zz9u?2C`  
been recognized as @RbAC*Y]g  
l BE aimed at / built up / carried out by / essentially concerned ukq9Cjs  
][wS}~):  
with / considered to be the key technology / associated with each {vA;#6B|  
feature of a compo 3]xnKb|W  
site component / cable of / currently implemented for / 8*6J\FE<p  
demonstrated by an example / finally reached / made equal to / UkXc7D^jwm  
equivalent to / more suitable to / oriented to / interpreted as / '{6`n5:e  
pointed out / potentially of great benefit in the complex task of / n'4D;4  
shown in / used to effectively guide the search 8a. |CgI#h  
l makes use of Zb );08X  
l make up Yn1U@!  
l meets the needs of real life production,/ the current demands &sx/qS#,VL  
placed upon it +u25>pX  
l must be justified V FA1p)n  
l point out zS?i@e $  
l play an important role pklcRrx,a  
l relates to L[TL~@T   
l rely on NSb< 7_L  
l satisfy the needs q. BqOa:  
l determine the total requirements for the ... :*c@6;2@  
l uses ... as a key to search for... o~es> ;  
l without relying on / HaS.  
l will be available/ performed/ overlooked L=HL1Qe$G]  
NOUN PHASE nW|[poQK  
l a basic technical function of ;]n U->  
l a critical need i Cv &<C@  
l a key / principle feature of QW6k!ms$  
l a substantial impact on to:hMd1T  
l an intensive review was conducted %R&3v%$y*  
l an increasing need for expanding the application of .... rR C3^X`u  
l an important component / function / aspect / issue lD C74g  
l each rule is numbered in sequence a-%^!pN\M  
l each of these involves wQ [2yq  
l for this calculation, it is necessary to define 5-]%D(y  
l in the physical environment / integration of g3x192f  
K=06I  
l in the reality of situations where … DlIfr6F  
l many aspects of )(DV~1r=  
l most past efforts have been spent on ... |ZRl.C/e  
l common sense to a well studied and documented technical field. K h% x  
l sources of additional information on ... are listed xR1g  
l systematic and rationally structured format w_|WberU  
l the basis on which a range of ...operations can be established is \nxt\KD  
shown %o{vD&7\  
l THE basic philosophy / principles of / key element / general [N7[%iQ%  
hypothesis / candidate list of / concept of ... has attracted wide wlKL|N  
interest / function is concerned with / heart / impact / nature / role `yC R.3+  
/ task of / kernel functions AHZ6  
l the number of parts needed to KCCS7l/  
l the above statement means that ^i:%;oeG  
l the output data is passed to ]L_HnmD6  
l the proposed method / underlying principle possM'vC  
l the recommendations made in this report, if implemented, should w"l8M0$m  
l this information resides in ~:+g+Mf~[  
l this process is composed of ... different ... operation PfuYT_p4s  
l along with the use of n+!.0d}6  
l concerning general aspects of 9Z+@i:_}  
l due to =,0E3:X^  
l for later use in generating..., Ap97Zcw  
l in turn, gV`:eNo*  
l IT IS believed / noted / assumed / suggested / shown / quite {b#c0>.8-  
evident / appears / implies that / intended for / of no important to ec]ksw6T+  
l it can be claimed/concluded that ueWG/`ig  
l it demonstrates the decisions required of =6+BBD  
l it also provides information to .. g#70Sg*d  
l it becomes essential to Dt +"E  
l let ... be the probability that @Qx;J<{+g  
l once... is written, it is compiled into... ^|sQkufo  
l suppose it is observed that {) .=G  
l this is because 6DR8(j)=[%  
]1Q\wsB  
l this results in a s]2k@3|e  
l upon completion of the ... analysis, |"@E"Za^  
l when the knowledge is of mathematics or quantum physics, it will $*@mxwMQ}  
also be {+r?g J  
recorded in books and papers [M;P :@  
l selection of rules for using the tools, for generating operation UW>~C  
plans, Vy5Q+gw  
is another matter of preference, since practice varies greatly. G A7  
l for the sake of convenience ~ R*6w($  
l correct decision to be reach ?]7ITF  
l keeping the number of rules to a minimum. ? `w ~1  
l a good process plan will result exhibiting several characteristics: -iW[cj R`$  
l practical solutions = tog<7  
l because of rather small job lot sizes (Bmjz*%M  
l Backward reasoning can be used to answer the question "should {?j|]j  
milling tool be select" different level of knowledge in the realm of jn+0g:l  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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