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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 mD^qx0o<  
cAKoPU>U  
['}^;Y?*o  
Beginning guUr1Ij  
1. In this paper, we focus on the need for @F3-Ugm  
2. This paper proceeds as follow. SILvqm  
3. The structure of the paper is as follows. O{i_?V_  
4. In this paper, we shall first briefly introduce fuzzy sets and related g~^{-6Vg  
concepts [oU+b(  
5. To begin with we will provide a brief background on the OnPy8mC  
Introduction _/sf@R  
1. This will be followed by a description of the fuzzy nature of the [K)1!KK,L  
problem and a detailed presentation of how the required $*v20  
membership functions are defined. ![P(B0Ct/  
2. Details on xx and xx are discussed in later sections. |3<ehvKy  
3. In the next section, after a statement of the basic problem, various $R$c1C'oX  
situations involving possibility knowledge are investigated: first, an X%9xuc  
entirely possibility model is proposed; then the cases of a fuzzy lPFdQ8M  
service time with stochastic arrivals and non-fuzzy service rule is R !%m5Q?5  
studied; lastly, fuzzy service rule are considered. &zh+:TRm  
Review i!d7,>l+Q~  
1. This review is followed by an introduction. 1=q?#PQ  
2. A brief summary of some of the relevant concepts in xxx and xxx is iq^L~RW5e  
presented in Section 2. 7f\^VG  
3. In the next section, a brief review of the .... is given. SJ [@fUxO)  
4. In the next section, a short review of ... is given with special regard u<y\iZ[   
to ... ;&^"q{m  
5. Section 2 reviews relevant research related to xx. :D+ SY  
6. Section 1.1 briefly surveys the motivation for a methodology of i{FC1tVeL_  
action, while 1.2 looks at the difficulties posed by the complexity of hv:Z%D |S  
systems and outlines the need for development of possibility dYqDL<se/I  
methods. q'V{vFfY%  
Body =ci5&B?  
1. Section 1 defines the notion of robustness, and argues for its TnU$L3k  
5B.??;xtaV  
importance. $9_.Q/9>  
2. Section 1 devoted to the basic aspects of the FLC decision-making &N7:k+E  
logic. ^57fHlw  
3. Section 2 gives the background of the problem which includes xxx ]ifHA# z`~  
4. Section 2 discusses some problems with and approaches to, y yR8VO{  
natural language understanding. :kx#];2i  
5. Section 2 explains how flexibility which often ... can be expressed iCSM1W3  
in terms of fuzzy time-window &CmkNm_B  
6. Section 3 discusses the aspects of fuzzy set theory that are used in 6dy4{i  
the ... boOw K?  
7. Section 3 describes the system itself in a general way, including O/^w! :z'  
the ….. and also discusses how to evaluate system performance. ^oB1 &G  
8. Section 3 describes a new measure of xx. |ShRxE3@'  
9. Section 3 demonstrates the use of fuzzy possibility theory in the ^- ;Z8M  
analysis of xx. ftqW3VW  
10. Section 3 is a fine description of fuzzy formulation of human -*q2Y^A^l  
decision. WblV`"~e  
11. Section 3 is developed to the modeling and processing of fuzzy U?ic$J]N  
decision rules \fR:+rbQ&|  
12. The main idea of the FLC is described in Section 3 while Section 4 +;iesULXn  
describes the xx strategies. F}.TT =((8  
13. Section 3 and 4 show experimental studies for verifying the :::f,aCAu  
proposed model. jTgh+j]AP  
14. Section 4 discusses a previous fuzzy set-based approach to cost bNU^tL3QZ  
variance investigation. 7%!KAtc  
15. Section 4 gives a specific example of xxx. GO3YXO33  
16. Section 4 is the experimental study to make a fuzzy model of : 8<^rP  
memory process. 7CMgvH)O  
17. Section 4 contains a discussion of the implication of the results of y]Tn#4 ,/  
Section 2 and 3. RcM0VbR"EU  
18. Section 4 applies this fuzzy measure to the analysis of xx and iC+H;s5<  
illustrate its use on experimental data. P1>X5:  
19. Section 5 presents the primary results of the paper: a fuzzy set {-` O E  
model .. )t ch>.EQ_  
gj;G:;1m  
20. Section 5 contains some conclusions plus some ideas for further 6i9I 4*'  
work. jt r=8OiL  
21. Section 6 illustrates the model with an example. '|?r&-5 h  
22. Various ways of justification and the reasons for their choice are &Q+V I/p  
discussed very briefly in Section 2. 7uNI  
23. In Section 2 are presented the block diagram expression of a EoCwS  
whole model 9cj-v}5j  
of human DM system ]qHO{b4k  
24. In Section 2 we shall list a collection of basic assumptions which 2A ,36,  
a ... scheme must satisfy. PW4Wn`u  
25. In Section 2 of this paper, we present representation and }PL  
uniqueness theorems for the fundamental measurement of fuzziness CWYJ<27v{  
when the domain of discourse is order-dense. HbDB?s<  
26. In Section 3, we describe the preliminary results of an empirical (UXB#I~  
study W)hby `k  
currently in progress to verify the measurement model and to }TL"v|ny6;  
construct membership functions. #8OqX*/  
27. In Section 5 is analyzed the inference process through the two e,UgTxZ  
kinds of inference experiments... rWqA)j*!  
This Section e'&{KD,-T  
1. In this section, the characteristics and environment under which h!~yYNQ"  
MRP is designed are described. 9Wrcl ai  
2. We will provide in this section basic terminologies and notations e90z(EF?0  
which are necessary for the understanding of subsequent results. qJj5J;k  
Next Section a<.@+sj{  
2. The next section describes the mathematics that goes into the 0eP~F2<bC  
computer implementation of such fuzzy logic statements. e)"cm;BJ^P  
3. However, it is cumbersome for this purpose and in practical Bx >@HU  
applications the formulae were rearranged and simplified as ,-kZ5&r  
discussed in the next section. 1Tr=*b %f  
4. The three components will be described in the next two section, \_bX2Lg  
and an example of xx analysis of a computer information system will .R5 z>:A  
g\'84:*J\  
then illustrate their use. =x>k:l~s  
5. We can interpret the results of Experiments I and II as in the 5GkM7Zu!{j  
following sections. d*HAKXd&:j  
6. The next section summarizes the method in a from that is useful cTp +M L  
for arguments based on xx iSlVe~ef  
Summary b\Ub<pE  
1. This paper concludes with a discussion of future research K%Bi8d  
consideration in section 5. th,qq  
2. Section 5 summarizes the results of this investigation. _Hk`e}}  
3. Section 5 gives the conclusions and future directions of research. r1]^#&V;MC  
4. Section 7 provides a summary and a discussion of some extensions H l@rS  
of the paper. Y~!@  
5. Finally, conclusions and future work are summarized vcHDFi  
6. The basic questions posed above are then discussed and jtwO\6 t&  
conclusions are drawn. )j'b7)W\  
7. Section 7 is the conclusion of the paper. 9h8G2J o  
Chapter 0. Abstract \ PqV|  
1. A basic problem in the design of xx is presented by the choice of a f9$q.a*  
xx rate for the measurement of experimental variables. N}= - +E|  
2. This paper examines a new measure of xx in xx based on fuzzy v5o%y:~  
mathematics which overcomes the difficulties found in other xx OH w6#N$\  
measures. G'Y|MCKz>  
3. This paper describes a system for the analysis of the xx. X1"nq]chGy  
4. The method involves the construction of xx from fuzzy relations. XQA2uR4h  
5. The procedure is useful in analyzing how groups reach a decision. 14R))Dz"  
6. The technique used is to employ a newly developed and versatile .B*)A.   
xx algorithm. 0% /M& N  
7. The usefulness of xx is also considered. KVCS(oN  
8. A brief methodology used in xx is discussed. 5cU8GgN`  
9. The analysis is useful in xx and xx problem. ;Mz]uk  
10. A model is developed for a xx analysis using fuzzy matrices. *QX$Mo^E  
11. Algorithms to combine these estimates and produce a xx are LFC k6 R  
c LJCLKJ  
presented and justified. R)=<q]Ms  
12. The use of the method is discussed and an example is given. K5$ y  
13. Results of an experimental applications of this xx analysis q3:tZoeXV  
procedure are given to illustrate the proposed technique. a/ZfPl0Ns[  
14. This paper analyses problems in 0/Csc\Xl  
15. This paper outlines the functions carried out by ... fOJyY[  
16. This paper includes an illustration of the ... !v-(O"a  
17. This paper provides an overview and information useful for 19S,>  
approaching @;0Ep 0[  
18. Emphasis is placed on the construction of a criterion function by {f)p|)  
which the xx in achieving a hierarchical system of objectives are epnDvz\   
evaluated. 7"NUof?i  
19. The main emphasis is placed on the problem of xx l},%g%}iMU  
20. Our proposed model is verified through experimental study. }7V/(K  
21. The experimental results reveal interesting examples of fuzzy ,oC r6 ]  
phases of: xx, xx Wq4?`{  
22. The compatibility of a project in terms of cost, and xx are likewise wcO+P7g  
represented by linguistic variables. w3*JVIQC  
23. A didactic example is included to illustrate the computational x~W&a*WNT  
procedure V;m3=k0U  
Chapter 1. Introduction O@[ q./VV,  
Time ukw'$Yt2  
1. Over the course of the past 30 years, .. has emerged form intuitive +RbCa c  
2. Technological revolutions have recently hit the industrial world /<})+=>6f  
3. The advent of ... systems for has had a significant impact on the 7 MfpZgC  
4. The development of ... is explored a}wB7B;,g  
5. During the past decade, the theory of fuzzy sets has developed in a k: {$M yK  
variety of directions fROhn}<**[  
6.The concept of xx was investigated quite intensively in recent years Rzb] mM  
7. There has been a turning point in ... methodology in accordance kxKBI{L  
with the advent of ... }, ]W/  
8. A major concern in ... today is to continue to improve... Gm*i='f!?  
9. A xx is a latecomer in the part representation arena. 4b4nFRnH  
d=xweU<  
10. At the time of this writing, there is still no standard way of xx 'j}%ec1  
11. Although a lot of effort is being spent on improving these -8-Aqh8|  
weaknesses, the efficient and effective method has yet to be md<%Z4+  
developed. ;X\!*Loe  
12. The pioneer work can be traced to xx [1965]. -tDmzuD6  
13. To date, none of the methods developed is perfect and all are far eX}u ZR  
from ready to be used in commercial systems. cP(/+ /9  
Objective / Goal / Purpose ')go/y`YK  
1. The purpose of the inference engine can be outlined as follows: [*,`a]z-Q  
2. The ultimate goal of the xx system is to allow the non-experts to 1(C%/g#"  
utilize the existing knowledge in the area of manual handling of loads, 1MOQ/N2BR  
and to provide intelligent, computer-aided instruction for xxx. 3C.bzw^  
3. The paper concerns the development of a xx Y,?rykRj  
4. The scope of this research lies in c,e 0+  
5. The main theme of the paper is the application of rule-based #S QFI;zj  
decision making. W<kJ%42^j  
6. These objectives are to be met with such thoroughness and zX(p\NU  
confidence as to permit ... m\ j'7mZ1  
7. The objectives of the ... operations study are as follows: 7Sr7a {  
8. The primary purpose/consideration/objective of y\Zx {A[  
9. The ultimate goal of this concept is to provide 3<?#*z4]_  
10. The main objective of such a ... system is to y&B~UeB:q  
11. The aim of this paper is to provide methods to construct such 3 %'$AM}+s  
probability distribution. iYBs )  
12. In order to achieve these objectives, an xx must meet the Pr/K5aJeg  
following requirements: )mJl-u[0+  
13. In order to take advantage of their similarity 7+=fD|Cl  
14. more research is still required before final goal of ... can be e<>(c7bF  
completed .\qZkk}2l  
15. In this trial, the objective is to generate... 7zT]\AnO  
16. for the sake of concentrating on ... research issues r6QNs1f~.  
17. A major goal of this report is to extend the utilization of a recently  !3}vl Y1  
developed procedure for the xx. wSnY;Z9W_  
(+(YO\ng6  
18. For an illustrative purpose, four well-known OR problems are \A Y7%>  
studied in presence of fuzzy data: xx. 6 O!&!  
19. A major thrust of the paper is to discuss approaches and m^%[  
strategies for structuring ..methods P$4G2>D8dg  
20. This illustration points out the need to specify *EvnN:  
21. The ultimate goal is both descriptive and prescriptive. %5NfF65'  
22. Chapter 2. Literature Review :dLfM)8}  
23. A wealth of information is to be found in the statistics literature, O3PE w4yA  
for example, regarding xx FhHcS >]:.  
24. A considerable amount of research has been done .. during the c4k3|=f  
last decade D<]z.33  
25. A great number of studies report on the treatment of n PD5/xW  
uncertainties associated with xx. g,@0 ;uVq  
26. There is considerable amount of literature on planning 2r^|  
27. However, these studies do not provide much attention to V \,Z (  
uncertainty in xx. ^ duNEu0*  
28. Since then, the subject has been extensively explored and it is "}Of  f  
still under investigation as well in methodological aspects as in 2xN1=ug  
concrete applications. _p" nR  
29. Many research studies have been carried out on this topic. a2 e-Q({  
30. Problem of xx draws recently more and more attention of system |<t"O  
analysis. za `  
31. Attempts to resolve this dilemma have resulted in the lU`]yL  
development of _=Ed>2M)no  
32. Many complex processes unfortunately, do not yield to this llXyM */  
design procedure and have, therefore, not yet been automated. ,|,DXw  
33. Most of the methods developed so far are deterministic and /or :UGc6  
probabilistic in nature. ( 6|S42  
34. The central issue in all these studies is to jO)UK.H#  
35. The problem of xx has been studied by other investigators, M^JRHpTn  
however, these studies have been based upon classical statistical q{gt2OWqX  
approaches. %]S~PKx  
36. Applied ... techniques to 03Pa; n  
37. Characterized the ... system as +YVnA?r?  
ua# sW  
38. Developed an algorithm to 5-3`@ (/  
39. Developed a system called ... which .]}kOw:(#  
40. Uses an iterative algorithm to deduce o _>id^$>B  
41. Emphasized the need to |d\ rCq >  
42. Identifies six key issues surrounding high technology STmn%&  
43. A comprehensive study of the... has been undertaken *$mDu,'8  
44. Much work has been reported recently in these filed GInU7y904  
45. Proposed/Presented/State that/Described/Illustrated/ 1sKKmtgH  
Indicated/Has shown / showed/Address/Highlights p_T>"v  
46. Point out that the problem of \lwYDPY:  
47. A study on ...was done / developed by [] 4X,fb`  
48. Previous work, such as [] and [], deal only with "X4L+]"$g  
49. The approach taken by [] is <20rxOEnf  
50. The system developed by [] consists ~"F83+RDe  
51. A paper relevant to this research was published by [] ma@3BiM  
52. []'s model requires consideration of... {Wp+Y9c[  
53. []' model draws attention to evolution in human development Gu} `X23  
54. []'s model focuses on... z'N_9=  
55. Little research has been conducted in applying ... to ]4f;%pE  
56. The published information that is relevant to this research... *c'nPa$+|S  
57. This study further shows that Z'sAu#C  
58. Their work is based on the principle of \7M+0Ul1  
59. More history of ... can be found in xx et al. [1979]. *{/ ww9fT  
60. Studies have been completed to established y+D 3(Bsn  
61. The ...studies indicated that V?"X0>]0  
62. Though application of xx in the filed of xx has proliferated in ,'[&" Eg  
recent years, effort in analyzing xx, especially xx, is lacking. u%n6!Zx  
Problem / Issue / Question =*EIe z*.x  
63. Unfortunately, real-world engineering problems such as 7d&_5Tj:  
manufacturing planning do not fit well with this narrowly defined V/w:^@5+p  
model. They tend to span broad activities and require consideration )X*?M?~\  
of multiple aspects. WmU5YZ(mAq  
64. Remedy / solve / alleviate these problems n#@/A  
67. ... is a difficult problem, yet to be adequately resolved m# #( uSh  
I,4t;4;Zk  
68. Two major problems have yet to be addressed VrL==aTYXs  
69. An unanswered question jwsl"zL  
70. This problem in essence involves using x to obtain a solution. \~V Z Y  
71. An additional research issue to be tackled is .... a^yBtb~,P  
72. Some important issues in developing a ... system are discussed [e1kfw  
73. The three prime issues can be summarized: zh5'oE&[yC  
74. The situation leads to the problem of how to determine the ... (_&W@:"z  
75. There have been many attempts to /18Z4TA  
76. It is expected to be serious barrier to f:$LVpXS-  
77. It offers a simple solution in a limited domain for a complex u`E24~  
problem. q^{Z"ifL  
1. There are several ways to get around this problem. !eb} jL  
2. As difficult as it seems to be, xx is by no means new. 5#jna9Xc  
3. The problem is to recognize xx from a design representation. 4%l @   
4. A xx problem can trace its roots to xx. uP,{yna(  
5. xx [1987] used a heuristic approach to simplify the complexity of ml7nt 0{  
the problem. :,.g_@wvG  
6. Several problems are associated with them. EJqzh i5  
7. Although some progress has been made in this area, at least two npcB+6  
major obstacles must be overcome before a fully automated system _n9+(X3  
can be realized. **\BP,]}  
8. Most problems in practice are complicated }z/;^``  
9. More problem surface here. H^jFvAI,8  
10. Hamper effort toward a xx system cv fh:~L  
11. In order to overcome the limitations due to incomplete and wk { 9  
imprecise xx knowledge, a xx program has been developed, which <:#O*Y{  
bases its knowledge upon the statistical analysis of a sample )tQG5.to  
population of xx p%304oP6  
12. The above difficulties are real challenges faced by researchers ,#^<0u+zrF  
attempting to develop ^+Ez[S{8  
13. This type of mapping raises no controversy to the issue of g*UI~rp  
membership function determination. Q(lj &!?1k  
14. However, attempts to quantify the xx have met both theoretical \ iL&Aq}BO  
and empirical problems. T!6H5>zA  
oOk.Fq  
15. It has become apparent that in order to apply this new .8is! TT  
methodological framework to real-world problems and data, we have V43pZ]YZ>  
to pay attention to the problems of xx and xx. Wpom{-  
Chapter 3. Proposed methodology b6D}GuW  
Assumption RVN"lDGA  
1. In the case when the assumption of a xx seems to be too U*8;ZXi  
restrictive or inadequate, the formulation with Fuzzy termination 3j.Ft* SV  
time, i.e. given by a fuzzy set in the space of control stages, may be %h U8ycI*h  
applied. /'1UfjW>  
2. We assume here the fuzzy constraints to be state-dependent, and fys@%PZq  
the fuzzy goal to be the same for all the control states, xx, which $Aww5G5e  
stems from the problem's nature. s-r$%9o5  
3. An approach to the solution of this problem is presented under the /U<-N'|  
assumption that the sampling rate Decision can be made prior to the HzB&+c? Z  
execution of the experiment, as opposed to being made while the >HnD'y*  
experiment is in progress. x]%e_  
4. Another assumption made above is that there are precise odds at 87EI<\mP  
which the expert is indifferent. oaI7j=Gp  
5. Main simplifying assumptions are: y]=v+Q*+  
6. This, in our view, is a questionable assumption. f+0dwlIlC$  
Outline / Structure / Module IoNZ'g?d  
1. An outline of the research 3y>.1  
2. Information is incorporated within the scheme yhEU *\:  
3. Is built into ... structure oUZwZ_yKW  
4. A nice modular structure. 4UoUuKzt  
5. The principles of ... are applied as modularized criteria '#t"^E2$  
Classification C 0*k@kGy  
1. A xx system comprises three main components: 5L|yF"TI#  
2. Must decompose the original .. into a set of .. .CI]8O"3y  
3. Consists of the following steps: 8x'rNb  
4. This is summarized in the following steps: @Th.=  
U*/  
5. Can be broadly classified into the following areas: Q" VFcp:  
6. Can be characterized by its function of effectively processing the i>T{s-3v  
7. Can allow further breadth of application of ...into more $$ {ebt  
8. The following steps should be followed .)})8csl.d  
9. xx can be classified by a different ways. M O* m@  
10. Based on the xx, one may classify xx into the following: 2DTH|Yv  
11. This catalog may change due to wear, breakage, and purchasing. \ ;Hj,z\  
System i1vBg}WHN  
1. Unlike many conventional program, expert systems do not (W3R3>;  
usually deal with problem for which there is clearly a right or wrong 8c+i+gp!  
answer. VjYfnvE  
2. The system consists of both ... and ... &Z=}H0y q  
3. The system has a hierarchical modular architecture organized on %Iv+Y$'3B  
three levels. !i_5Xc H  
4. expert system domains are area of expertise lqqY5l6j  
5. To develop a xx system for xx, the following factors must be zfi{SO l  
considered: ~ ;)@a  
6. The system has been developed / designed to determine ?xK9   
7. The system has proven to be able to )^%,\l-!  
8. The domain in which an expert system operates is a particular u9mMkzgSkP  
domain d^]wqnpf  
9. The system comprises a ... with }}grJh>tGg  
10. The system is [feature-oriented ] / based on the ... technique , X$S4>  
11. The system environment must be relatively stable ixiRFBUcF~  
12. The system is utilized to generate, load, store, update and 3h 0w8(k;  
retrieve ... Vl^jTX5N  
13. The development of a xx system has two stages: xx stage and xx L=Dx$#|  
stage. .vQ2w  
14. The most essential part of .. system is the ... (jY.S|%  
15. The successful developments in ESs have made them an =5dv38  
important tool in the development of y*Ex5N~JC  
16. An automated system was developed for oH6(Lq'q  
17. In this case, the system can be considered to be generative. )}G HG#D{  
:Oq!.uO  
18. An interactive automatic ... system ~&B_ Bswf  
19. A …. is commonly thought of as a truly integrated .. system .^JID~<?#  
20. Should be capable of being generated from a ... system -iH/~a  
21. xx is an important part of the integrated system. M lRgdVX  
22. The model consists of four rule bases, each of which addresses a f_raICO{R  
separate problem in the hierarchy of scheduling decision. ^o?.Rph|i]  
23. The rule bases are linked to each other in a chin-like manner in ,8$;|#d  
the sense that the consequent of one rule base constitutes a part of ZP%^.wxC  
the antecedent of the next rule base. X*S|aNaLWW  
24. The rule base consists of all possible combinations of the !\|&E>Gy  
linguistic terms associated with the linguistic variable of the Q~-gtEv+&  
antecedent of a rule. OkzfQ hC}  
Computer System zI7-xqZ  
1. The system has been implemented using Prolog language in an a |z{B b  
MS-DOS environment. Prolog was chosen because it offers a well {'d?vm!r  
known and flexible environment in which fuzzy reasoning may be Y;#P"-y H  
easily implemented. II~D66 bF  
2. The current version of the xx program when compiled with ;Rwr5  
WATFOR77 results in an executable code of about 270K bytes. )QI]b4[  
Typical run time, when run on a XX computer (an IBM compatible Y=}b/[s6;  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min /5yW vra  
to 2h, depending on the size (or complexity) of the problem. BT#'<!7!  
3. Time consuming procedures have been implemented in !*pK#  
C-language and directly linked to the Prolog environment. vaK$j!%FE  
4. The xx process, once the xx's data has been entered, requires AeUwih. 4  
approximately 180 seconds. dAAE2}e  
5. It should be noted that the computation was done with a 20 Hhz, \W1?Qc1]  
80386..209;based microcomputer equipped with a 80387 math ^$x^JM ]/  
co-processor. IS'=%qhC`  
6. The computer programs used for the analyses, one based on the xx 8Cm^#S,+  
method and the other based on the new method, were written in <cepRjDn  
FORTRAN with a compiler that supports the math co-processor. tb@/E  
7. Lisp, Prolog give maximum flexibility but also maximizes )cOm\^ ,  
=VY[m-q5  
development time. -?e~S\JH  
l Internal representation is the way a model is represented in the ?}lCS7&  
computer. zo ]7#  
l An interactive menu-driven procedure is used in this study 6o,, w^  
l Shell can be develop very fast at the cost of time fairly severe U'lrdc"Q  
limitations. KWN&nP +  
l While there is no measurable saving of time for the case involving 0]NsT0M  
five criteria, the saving is dramatic for the case involving 10 criteria `9 $?g| rB  
-- the computation time reduces from 10 hr 40 min to about 1 min. *M KVm)Iv  
l This combination is being implemented in an objected-oriented Vw) \#6FL  
programming environment (Smalltalk-80 system) to solve problems Ye(0'*-jyc  
encountered in construction xxx. \8F$85g  
Method / Approach / Study / Process Model / Equation /Algorithm / !})+WSs'"s  
Rule / Formula / Technique 1 k  H  
l A discussion is presented of a problem-solving system ~8|$KD4I  
l To improve the efficiency of the method, the following approach L@[bgN`=v  
may be applied. kv5D =0r  
l In order to an investigation was made to find the causes of the oA42?I ^  
l Although large collections of rules and equations have been S liF$}J  
complied, none are generally accepted St&XG>nWS  
l This approach will be explained and discussed thoroughly in the ^{Mx?]z  
body of the report. 2gFQHV  
l This can be accomplished by $]%k <|X  
l This algorithm to compute the total cost can be described step by _ k>j?j-  
step as follows: DpTQPu9  
l The above preliminary analysis has provided important (T`x-wTl  
information %`g qV9a  
l Various methods have been proposed for selecting an optimum... OGae]O<  
l These concepts have been applied to g[Yok` e[  
l On the basis of the concept mentioned above, tc# rL   
l This can be achieved by  r5F#q  
l This fact suggests that a new concept =8<SKY&\X  
l This was accomplished by taking ... {qh`8  
}*+ca>K  
l The preparatory stage is very time consuming process. >Axe7<l  
l Test are performed for validity, completeness, and compatibility 7AtJ6  
l There is little hope of achieving successful ... J)o~FC]b*  
l There has been an increasing awareness of the potential of using sy]1Ba%  
most ..so far made have not taken this approach, with the exception ..n-&(c32  
of 6idYz"P %  
l Only a few studies can be found. WxIP~  
l It is a very tedious process to go through ~Ilgc CF  
l It is only when .. has been completed that .. may be effected d)q{s(<;  
l The entire interpretation process is conducted in one's head. Aja'`Mu  
l These approaches are sometimes very tedious. -<CBxyZa&  
l Several techniques can be used ukhI'alS,  
l A polynomial parametric model can be written as [the )%UO@4  
following]/[follows]: _D z4 }:9  
l A xx model is constructed/formulated using xx. oBIKt S*L  
l A xx model represents an xx by its xx. "9R3S[  
l A process decision model captures the logic essential to |%TH|?kB  
l From the equation above, xx is equal to the summation of xx -LQ%)'J ZN  
times the ... N )&3(A@  
l The validity of a xx model can be checked using Euler's formula. , gz:2UY#  
l Given a model, one can mathematically determine whether ... or ... j >P>MdZtk  
l Equations for xx need to be derived and implemented in the 5qUyOkI  
system. wYS 4#7  
l A number of heuristic rules have been developed for l$.C40v  
l Optimum .. techniques can be made more reliable by ... so that Ue~M .LZb  
l An algorithm based on the characteristic ... is used to determine &e2") 4oh  
l Euler's formula states the following: MheP@ [w|@  
l The completed model should agree with the formula. kjjO<x?&*  
l For manufacturing purposes, a detailed and precise model of the WM*7p;t@)  
object is necessary u9}=g%T V  
l Engineering design models are very well defined; therefore, $40tA es9  
l To keep the domain narrow enough to be implementable, yet wide q[**i[+%  
enough to }6ec2I%`o  
be useful. J`V7FlM  
LXfDXXF  
Point of View >a@-OJ.yOk  
l from an implementation standpoint, 6uR :/PTG  
l From the point of view of this application, zjB8~ku#  
l From this point of view, Zadeh suggested an inference rule named v(]\o;/O  
xxx (CRI for short). ZSh RE"`  
l Information is the meaningful interpretation and correlation of OG/R6k.  
some aggregation of data in order to allow one to make decisions. VbJGyjx  
l From a practical point of view, the computational aspects of an U")bvUIL  
FLC require a simplification of the fuzzy control algorithm. #.#T+B+9  
l The use of a hammer to insert screws, although partly effective, 1kvBQ1+  
tends to distort, destroy, and generally defeat the purpose of using a ~S#Le  
screw [Kusiak AI Implications for CIM p.129] @My-O@C>  
Justification R\ <HR9 r  
l We choose the so called xx in our experiment because it has .@.O*n#K  
received wide acceptance and can K'Bq@6@C g  
l Prolog was chosen because it offers a well known and flexible Ryr2  
environment in which fuzzy reasoning may be easily implemented. wHAoO#`wn5  
l The rationale behind this is that it can be much easier for an $5s?m\!jZz  
estimator to rate a cost as high than to attempt to place a dollar DF P0WXbOE  
value on the estimate. GUJx?V/[  
l This strategy has been widely used in fuzzy control applications M')f,5i&$  
since it is natural and easy to implement. }p]8'($  
l A function definition expresses the membership function of a MXq+aS{  
fuzzy set in a functional form, typically a bell-shaped function, etc. G;>b}\N g  
Such functions are used in FLC because they lead themselves to >01&3-r  
manipulation through the use of fuzzy arithmetic. :l'61$=  
l It should be noted that in our daily life most of the information on DUF fk6#X}  
which our decisions are based is linguistic rather than numerical in S[n ;u-U  
nature. Seen in this perspective, fuzzy control rules provide a natural PB(mUD2"r  
framework for the characterization of human behavior and decisions xf_NHKZ)  
analysis. [daUtK z  
l Many experts have found that fuzzy control rules provide a ,73J#  
[ ]}E- V  
convenient way to express their domain knowledge. This explains DZ<q)EpC  
why most FLCs are based on the knowledge and experience which F\^9=}b_i  
are expressed in the language of fuzzy "if-the" rule. "eA4JL\%)  
Chapter 4. Examples f!|7j}3  
Example/ Data ]+u`E  
l The data used in the following example was taken from an w@ALl#z;}  
experiment in which xx was measured between x and x using a xx Bv k 8b  
technique. [K1RP.  
l The data consists of over xx measurements. ]|KOc& y:I  
l An example of xx is discussed and the control rules of xx are "j#;MOK  
compared with a xx KzZ|{ !C  
l Examples of complex processes to which this technique may be <$7HX/P  
applied are xx, xx, etc. b*i_'k}*<g  
l The following example is constructed only for the purpose of D"UCe7  
illustrating the computational procedure discussed. SM;UNIRVE  
l This example clearly demonstrates that the profile of an individual <]1Z  
xx, or a very small group of xx, with no enough data to be studied X` r~cc  
statistically, can be meaningfully analyzed by fuzzy possibilistic $2I^ ;5r[  
methods. V9  Z  
l There is no space here to go into detail on all these methods, but  HG kL6o=  
deserve a mention and the bibliography will point to detailed Y<0}z>^  
references for those wishing this level of detail. *f<+yF{=A  
l Note that the golf ball spotting example is used throughout the sa6/$  
paper. Lmh4e zrdH  
Comparisons G)5R iRcs  
l As well, the pros and cons of these representations from a process >(T)9fKF  
planning point of view will be discussed. Lh`B5  
l The method of using xx to implement xx described by Zadeh 1j4tR#L  
(1973) appeared more suitable AIN Fv;  
l As discussed [in the previous section]/[preciously], l5; SY  
:]]#X ~J  
Relation f)'m pp^  
l We can not invert F' directly because it defines a many-to-one $>if@}u  
mapping. f%ThS42  
l The relationships appear very complicate ^W8kt  
l Lifting tasks involve complex and imprecise relationship between vU(uu:U9  
the task variables and the human operator's characteristics. ) oypl+y  
l These methods are based on the relationship between ... and ... z.d1>w  
l The fundamental concept of a fuzzy rating language is that we can ' v)@K0P  
establish a relationship among terms such as high, medium, and low, H<N$z 3k  
and then modify these relationships. HgY [Q}7s  
l This article will thus mention the latter as well as the former. tRC*@>I$  
l The former two bear a close relation to a fuzzy Cartesian product. vIzREu|5  
Importance }.DE521u  
l The emphasis is on an implementation of a general approach to IJ[r!&PY  
rule based decision making. Xg4i H5!E  
Consideration / Attention "O (N=|b  
l Careful evaluation is necessary to ensure !vfb gK  
l Such a formulation does not change further considerations. lq'MLg  
l Considerable attention has been paid to ?:woUTyCv  
l Attention should be paid to an important finding of this j-$F@p_2F  
investigation. > a?K ![R  
l Caution should be exercised in this process to avoid ... dilom#2l  
l Primary consideration is given to ... components, though others n Y)H-u^  
can be accommodated #lDW?  
l After ... has been defined by ..., a carefully analysis is carried [aS<u`/g|  
out/performed to determine j0wpaIp  
l A number of factors such as ...need to be taken into consideration 9\ulS2d  
before making the appropriate decision. gJFx#s0?6.  
l It should be noted that =:"wU  
l It is important to point out that ... `m")v0n3  
l These considerations have heightened interest in the possibility of %iq8dAW%  
providing ... qG)M8xk  
MW|*Z{6*  
l We should stress the fundamental importance of the xx b/soU2?^  
Chapter 5. Results. *}h#'+  
Advantages / Disadvantage $*')Sma  
l One of the major advantages of this new measure of xx is that it k[Ue}L|  
can be applied to the experimental study of ` EdZ  
l One advantage of using a .. is the ease of preparing it. )45#lE3TH  
l The xx system is versatile ;@<Rh^g]  
l It has a very fast decision making process AW <"3 !@  
l All the algorithms involve mostly logical operations. 5Y4#aq  
l It can be easily and without additional cost implemented in a UbDpSfub  
microprocessor-based environment. p>=i'~lQ6  
l It can reduce the waste of designing from scratch. M/a40uK  
l The advantages of using a xx to represent xx are the following: IQ\5!e  
l However, xx is not without its shortcomings. Y/<`C  
l In most cases, the xxx shows an improvement over the existing K6EG"Vv !  
xxx. 5HC5   
l Compared to the existing xx, the impacts of the xx are generally y2M]z:Y U  
reduced by 5% to 9%. K0fuN)C  
l The "best case" results shows a savings of 6% to 9%. *!r"+?0gN  
l Most of the existing works based on xx approach can only  7CwQmVe+  
recognize a xx . !nDiAjj  
l Most of the above methods are computational expansive and b*)F7{/Z  
limited to xx. 2|A?9aE%0  
l Some other advantages of xx are the following: g#%Egb1  
l The problem is the limitation of this method to a limited domain of ;DgQ8"f  
parts. EC/=JlL`5  
l It proved limited in application because it demanded precision in -, uT8'  
system modeling that was impossible in practice. u?rs6A[h#  
l There are advantages to be gained in the structuring of costs and eb>jT:  
benefits, the use of xx, <nU8.?\?~  
l The disadvantages of this method are also disadvantages of Wud-(19  
conventional xx approaches. P%aNbMg  
%v4*$E!f  
l This combines the best features of both techniques l:+$Ks  
l Hopefully, this tool can be as the reference framework of for @TJ2 |_s6]  
developing a xx platform, and helping the administration, marketing, }R!t/ 8K  
and knowledge management activities in virtual communities. $It3}?>C'  
Results 4rLc] >  
l An improvement on the result shown above can be made by based SUDvKP  
on the data provided E[Q2ZqhgbP  
l Discussion of these theories is beyond the scope of this review <+UJgB A-  
l Based on the information contained in this 3 MCV?"0  
l The result can be categorized into nine classes !0_/=mA^  
l The results are illustrated by an example yqC158 P  
l The experimental results for each xx time are reported in Table 2. y@(EGfI  
l From the results obtained so far, it seem that udS&$/&GH  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn <v!jS=T  
as 3hVuC1;"  
l Although much effort has been made to., this reality is far from [A'e 7Do%'  
completion. V 4&a+MJ@  
l The results indicate that the total benefits are higher than the yeam-8  
total costs. #O{cplh,  
l Their results may then serve as guidelines for lower level models, FX!Qd&kl1  
less fuzzy and more detailed. X%5 `B2Wu  
Chapter 6. Conclusion NHcA6y$Cz  
l From the discussion, one may conclude that ... b2H -D!YO^  
l Form the above discussion, the conclusion can be reached that wq|7sk{  
l The conclusions drawn are also valid N8DouD q  
l In conclusion to this, it becomes obvious that the problem of xx +6x}yc:yd  
lies not only in... \E'z+0  
l We have attempted to introduce some concepts associated with a $rJgBN   
theory of %f?Zg44  
xx based on fuzzy sets. T oT('  
l Considerable more work, hopefully, will be done in this area 9e4`N"#,lI  
l A fuzzy set procedure is proposed to solve xx selection problems \;iOQqv0&  
)%<,JD  
interwoven with imprecise data "<Yxt "Z4  
l Employing the compositional rule of inference, the assessment of WM%w_,Z  
the xx compatibility in achieving prescribed xx projectiles in any ~~O4!|t  
level of the hierarchy is made possible. A]1dR\p  
l This paper has presented a theoretical and experimental study of E@6gTx*  
the xx process and xx concept. xL ms|jS  
l The experimental research results will hopefully serve as useful RN}joKV  
feedback information for improvements for xx work. omznSL  
l The scope of this contribution was to introduce a xx method. `sA xk  
l In general, fuzzy sets theory provides an alternative foundation {?q`9[Z  
for xx analysis in a fuzzy environment. s8 u`v1  
Future Research | O9b  
l Thus, first extension of the approach could be, WYP\J1sy  
l Present some cues for a further approach from Fuzzy Sets Theory x iz+ R9p  
application to RCi8{~rIvS  
l Some improvements to the scheduling aspect of the model may 5s;@;V  
be brought through additional levels in the hierarchy for more Vk2%yw>  
detailed representation of the scheduling activity. 0d+b<J,  
Tables and Figures /sn }Q-Zy2  
l Figure 7-1 sketches these relationships. 66sgs16k  
l The graphical representation of these functions is shown in Figure yE .st9m  
1. l>L?T#v!_  
l The xx may be depicted as in Figure 1. 2Nx:Y+[  
l Figure x shows the schematic diagram of the wkx#WC  
l Figure 1 though 2 provide a ... that h~qv_)F_  
l the architecture of this expert system for .... is illustrated in Figure {<a)+S.6U  
2. Dx=RLiU9  
l Figure 2 gives the outline of an ... system \){_\{&  
l Table shows the ic3Szd^4  
l as shown in Table 1 and 2 L@jpid95  
l This concept is illustrated in Figure 2 3sIdwY)ZS_  
l At the top of Table xx are shown two blocks of data. IwS<p -  
he@Y1CY  
l Each table or matrix has constructs xx through xx as lxbC 7?O  
row-headings, L_|iQwU%  
xx through xx as column-headings. B*E"yB\NV  
l A table of .. is developed and significant recommendations are 8kr$w$=q  
made. 68w~I7 D>  
CONJUGATION HRQfT>"/  
To Indicate Addition ;8 *"c  
l additionally, again, also, and then, as can be easily understood, Jt0/*^'  
besides, equally important, especially, finally, for the same reason, W5e >Z&&  
first, further, furthermore, in addition, last, likewise, moreover, next, h,-i\8gq  
second, third, too, evidently, obviously, roughly speaking, broadly :cIPX%S  
speaking k^cnNx  
To Indicate Cause and Effect Os]. IL$  
l accordingly, as a result, consequently, for this reason, hence, in U#sv.r/L}3  
short, otherwise, then, therefore, thus, truly 7l09  
To indicate Comparison ~(NFjCUY?  
l in a like manner, likewise, similarly , alternatively ~BgYD)ov  
To Indicate Concession 0,):;O I  
l after all, although this may be true, at the same time, even though, jeO`45O  
even so , I admit, naturally, of course h/y0Q~|/d  
To Indicate Contrast F9(jx#J~t  
l and yet, at the same time, but, for all that, however, yet, in fact, in O-pH~E  
contrast, in the real life, in spite of, nevertheless, notwithstanding, /qq*"R  
normally, on the contrary, on the other hand, still, traditionally, /xr75|-8  
rather, unfortunately, teLZplC=f  
To Indicate Time Relationships: J-G)mvkv  
after a short time, afterwards, as indicated earlier, as long as, as soon _{}^]ZB  
sYSq>M  
as, at last, at length, at the moment, at that time, at the same time, u@+^lRGFh  
before, earlier, currently, immediately, in the meantime, in recent f'7/Wj  
years, lately, later, meanwhile, often, of late, presently, recently, ADP3Nic  
soon, shortly, since, thereupon, temporarily, therefore, until, when, Z^J)]UL/  
while nJ 1<8 p  
To Indicate Special Features or Examples: yFDt%&*n^  
for example, for instance, incidentally, indeed, in fact, in other words, mZ3Z8q}%P  
in particular, in practice, specifically, that is, to illustrate, in this }XRfHQk  
respect, theoretically, as mentioned before / above x #|t#N%  
To Indicate Summary: ]C|xo.=?]  
in brief, in conclusion, in short, in summary, on the whole, to @00&J~D  
conclude CHL5@gg@>y  
, in general, to summarize, to sum up, as a result, ultimately, (9] =;)  
VERB PHASE V.yDZ "  
l build a .. model !NKPy+v  
l build up the key link *Ct ^jU7  
l began a new era in ... q%1B4 mF'  
l can be regarded as / achieved / used to/for / found / obtained )sK _k U{\  
through &s\/Uq  
l can result in (8~Hr?1B  
l carries out ... tasks 3 XUsw1,[  
l production information in order to simultaneously S6_dmTV*  
l contains all information necessary to describe hsI9{j]f  
l do not make use of production information C6D Eq>v  
l deals with `{}DLaD9  
l end with failure ! ;Ctz'wz  
l fetch the information from the model directly .[6T7fdi  
l has great potential / yet to be resolved / spurred the Ik=bgEF  
development of / <bywi2]z  
been recognized as qx?0]!x  
l BE aimed at / built up / carried out by / essentially concerned d#I; e  
8`WaUB%  
with / considered to be the key technology / associated with each th{Ib@o  
feature of a compo LcHe5Bv%  
site component / cable of / currently implemented for / wPJA+  
demonstrated by an example / finally reached / made equal to / &Z7NF|  
equivalent to / more suitable to / oriented to / interpreted as / |W|RX3D  
pointed out / potentially of great benefit in the complex task of / V%FWZn^  
shown in / used to effectively guide the search TF@k{_f  
l makes use of R^JtWjJR  
l make up MQo/R,F }  
l meets the needs of real life production,/ the current demands fZxEE~Q1  
placed upon it qu/b:P  
l must be justified [-3x*?Ju  
l point out s { 0c .M  
l play an important role 'L veCi_  
l relates to 7qhX `$  
l rely on )'$'?Fn  
l satisfy the needs wf,w%n  
l determine the total requirements for the ... a]?o"{{+  
l uses ... as a key to search for... T<u QhPMw  
l without relying on j\uPOn8k  
l will be available/ performed/ overlooked ;PWx#v+vwF  
NOUN PHASE JS(%:  
l a basic technical function of &MP +  
l a critical need `it  
l a key / principle feature of ,V ) |A=ml  
l a substantial impact on SG-Xgr@  
l an intensive review was conducted i0{sE  
l an increasing need for expanding the application of .... $ I|K<slV  
l an important component / function / aspect / issue 3t:/Guyom8  
l each rule is numbered in sequence !mu1e=bY>  
l each of these involves ^eCMATE  
l for this calculation, it is necessary to define ,<]~/5-f  
l in the physical environment / integration of $5J~4B"%3  
O|Y~^:ny  
l in the reality of situations where … DM3 %+ xY  
l many aspects of oNIt<T  
l most past efforts have been spent on ... i-`J+8|d  
l common sense to a well studied and documented technical field. p!H'JNG  
l sources of additional information on ... are listed +y9WJ   
l systematic and rationally structured format DkeFDzQ5  
l the basis on which a range of ...operations can be established is t}f,j^`e  
shown ;hJz'&UWQ  
l THE basic philosophy / principles of / key element / general V-w{~  
hypothesis / candidate list of / concept of ... has attracted wide &4jc3_UKV  
interest / function is concerned with / heart / impact / nature / role Ks\\2$Cm7  
/ task of / kernel functions E}8wnrxf  
l the number of parts needed to \jHIjFwQ  
l the above statement means that V8" m_  
l the output data is passed to l1ViUY&Z  
l the proposed method / underlying principle th`pf   
l the recommendations made in this report, if implemented, should M|}V6F_y  
l this information resides in KU*XRZu)  
l this process is composed of ... different ... operation $Lt'xW`8  
l along with the use of %SN"<O!  
l concerning general aspects of aP/Ff%5T  
l due to %>!$ eCX  
l for later use in generating..., ){$*<#&H  
l in turn, `xF^9;5mi  
l IT IS believed / noted / assumed / suggested / shown / quite agp7zw=N  
evident / appears / implies that / intended for / of no important to tM3Q;8gB!  
l it can be claimed/concluded that F6gU9=F1<  
l it demonstrates the decisions required of 87yZd8+)  
l it also provides information to .. nr- 32u  
l it becomes essential to ,qT+Vqpr{  
l let ... be the probability that ^!*nhs%  
l once... is written, it is compiled into... x|GkXD3  
l suppose it is observed that |wGmu&fY  
l this is because ~UQX t r  
0N`N  
l this results in a !v<` ^`x9I  
l upon completion of the ... analysis, UM:]Qba In  
l when the knowledge is of mathematics or quantum physics, it will m"GgaH3,  
also be fxknfgbg  
recorded in books and papers -1}&\=8M  
l selection of rules for using the tools, for generating operation 7\[)5j  
plans, q0 L\{  
is another matter of preference, since practice varies greatly. !nL>Ly  
l for the sake of convenience dF$&fo%  
l correct decision to be reach X"g`hT"i  
l keeping the number of rules to a minimum. Q$b4\n?44  
l a good process plan will result exhibiting several characteristics: W#kd[Wi  
l practical solutions SA%uGkm:e  
l because of rather small job lot sizes 3L:SJskYR  
l Backward reasoning can be used to answer the question "should [xo-ZDIoG  
milling tool be select" different level of knowledge in the realm of Q[)3r ,D  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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