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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 $LBgBH &z  
HH3Z?g  
3?k<e  
Beginning '0Q/oU  
1. In this paper, we focus on the need for =q[+ e(,3  
2. This paper proceeds as follow. 75h]# k9\  
3. The structure of the paper is as follows. PE_JO(e;Xm  
4. In this paper, we shall first briefly introduce fuzzy sets and related B0g?!.#23  
concepts {iQ4jJ`n  
5. To begin with we will provide a brief background on the DLq'V.M:  
Introduction -Zg.o$  
1. This will be followed by a description of the fuzzy nature of the @]]\r.DG  
problem and a detailed presentation of how the required sVlQ5M oo(  
membership functions are defined. V\ c`O  
2. Details on xx and xx are discussed in later sections. -LFk7a  
3. In the next section, after a statement of the basic problem, various 9+Wf*:*EW  
situations involving possibility knowledge are investigated: first, an ;wHyX)&X $  
entirely possibility model is proposed; then the cases of a fuzzy zq$0 ?vGd  
service time with stochastic arrivals and non-fuzzy service rule is n "I{aJ]K  
studied; lastly, fuzzy service rule are considered. +wGvY r  
Review -|:mRAe  
1. This review is followed by an introduction. gd0a,_`M  
2. A brief summary of some of the relevant concepts in xxx and xxx is FZ FPzH  
presented in Section 2. @6y)wA9Yx  
3. In the next section, a brief review of the .... is given. |lIgvHgg  
4. In the next section, a short review of ... is given with special regard IR8qFWDZ  
to ... RRpCWc Iv"  
5. Section 2 reviews relevant research related to xx. /W{^hVkvC  
6. Section 1.1 briefly surveys the motivation for a methodology of !W b Q9o  
action, while 1.2 looks at the difficulties posed by the complexity of OP``+z>  
systems and outlines the need for development of possibility ) '/xNR  
methods. !H zJ*  
Body ] $F%  
1. Section 1 defines the notion of robustness, and argues for its BWkT Qd<t  
'qoaMJxN`  
importance. 1#XZVp;M  
2. Section 1 devoted to the basic aspects of the FLC decision-making .sZ"|j9m  
logic. ZQsVSz( 1  
3. Section 2 gives the background of the problem which includes xxx @f#6Nu  
4. Section 2 discusses some problems with and approaches to, c`UizZ  
natural language understanding. dp }z G+  
5. Section 2 explains how flexibility which often ... can be expressed k P=~L=cK  
in terms of fuzzy time-window {afIr1j/m  
6. Section 3 discusses the aspects of fuzzy set theory that are used in =pb ru=/  
the ... R E9 `T  
7. Section 3 describes the system itself in a general way, including CeUC[cUQU  
the ….. and also discusses how to evaluate system performance. C:vVFU|4  
8. Section 3 describes a new measure of xx. lG`%4}1  
9. Section 3 demonstrates the use of fuzzy possibility theory in the dSE"G>l8  
analysis of xx. /kqa|=-`q  
10. Section 3 is a fine description of fuzzy formulation of human S3y(' PeF  
decision. q]Af I(  
11. Section 3 is developed to the modeling and processing of fuzzy rotu#?B  
decision rules _rW75n=3b7  
12. The main idea of the FLC is described in Section 3 while Section 4 ~Vf A  
describes the xx strategies. ~6#O5plKc  
13. Section 3 and 4 show experimental studies for verifying the zCmx1Djz  
proposed model. |}o3EX  
14. Section 4 discusses a previous fuzzy set-based approach to cost 8-x)8B  
variance investigation. Cq}E5M  
15. Section 4 gives a specific example of xxx. ;e W\41w  
16. Section 4 is the experimental study to make a fuzzy model of m-<m[49  
memory process. yVyh\u\  
17. Section 4 contains a discussion of the implication of the results of yKC1h`2  
Section 2 and 3. 1/J6<FVq  
18. Section 4 applies this fuzzy measure to the analysis of xx and ~P'i /*:  
illustrate its use on experimental data. !iW> xo  
19. Section 5 presents the primary results of the paper: a fuzzy set )D&xyC}  
model .. # GzowI'  
dQy K4T  
20. Section 5 contains some conclusions plus some ideas for further H4<Q}([w  
work. cVDcda|PE  
21. Section 6 illustrates the model with an example. tN z(s)  
22. Various ways of justification and the reasons for their choice are TrBW0Bn>p  
discussed very briefly in Section 2. E[<*Al +N  
23. In Section 2 are presented the block diagram expression of a "NTiQ}i  
whole model KC nm_4  
of human DM system .sD=k3d  
24. In Section 2 we shall list a collection of basic assumptions which od^ylg>K  
a ... scheme must satisfy. zpZfsn!  
25. In Section 2 of this paper, we present representation and eg24.W9c  
uniqueness theorems for the fundamental measurement of fuzziness Z{1B:aW  
when the domain of discourse is order-dense. aa{+,(  
26. In Section 3, we describe the preliminary results of an empirical my#\(E+  
study < pZwM  
currently in progress to verify the measurement model and to _tE55X&  
construct membership functions. fElFyOo+  
27. In Section 5 is analyzed the inference process through the two UqNUX?(  
kinds of inference experiments... |#'n VN.;  
This Section nu(7Y YCM$  
1. In this section, the characteristics and environment under which zjOOEvi  
MRP is designed are described. BvUiH<-D  
2. We will provide in this section basic terminologies and notations Hz)i.AA 4  
which are necessary for the understanding of subsequent results. lc3Gu78 A/  
Next Section 6[S IDOp*^  
2. The next section describes the mathematics that goes into the 6&il>  
computer implementation of such fuzzy logic statements. c94=>p6  
3. However, it is cumbersome for this purpose and in practical Ov ^##E  
applications the formulae were rearranged and simplified as -& =dl_m  
discussed in the next section. _ j`tR:  
4. The three components will be described in the next two section, ESYF4-d+  
and an example of xx analysis of a computer information system will n 4 y]h  
h9/fD5  
then illustrate their use. D~#%^a+Aq_  
5. We can interpret the results of Experiments I and II as in the ~clX2U8u`  
following sections. } `5k^J$x  
6. The next section summarizes the method in a from that is useful |0Xf":  
for arguments based on xx 1GqSY|FSGp  
Summary Fk^N7EJ:$  
1. This paper concludes with a discussion of future research v?Utz~lQ  
consideration in section 5. aU^6FI  
2. Section 5 summarizes the results of this investigation. q=Vh"]0g  
3. Section 5 gives the conclusions and future directions of research. CS~_>bn  
4. Section 7 provides a summary and a discussion of some extensions p4*L}Q  
of the paper. wjD<"p;P  
5. Finally, conclusions and future work are summarized F"UI=7:o  
6. The basic questions posed above are then discussed and n\3 #69VY  
conclusions are drawn. N9-7YQ`D  
7. Section 7 is the conclusion of the paper. W\NC3]  
Chapter 0. Abstract 1^^8,.'  
1. A basic problem in the design of xx is presented by the choice of a "~^0  
xx rate for the measurement of experimental variables. V~ORb1  
2. This paper examines a new measure of xx in xx based on fuzzy yCvtglAJ4  
mathematics which overcomes the difficulties found in other xx bWAa: r  
measures. 5l 3PAG  
3. This paper describes a system for the analysis of the xx. 849,1n^  
4. The method involves the construction of xx from fuzzy relations. j~G(7t  
5. The procedure is useful in analyzing how groups reach a decision. RYjK4xT?Y/  
6. The technique used is to employ a newly developed and versatile c|;n)as9(%  
xx algorithm. #Uu,yHMv:;  
7. The usefulness of xx is also considered. f|FS%]fCxk  
8. A brief methodology used in xx is discussed. tVEe)QX  
9. The analysis is useful in xx and xx problem. lz~^*\ F  
10. A model is developed for a xx analysis using fuzzy matrices. C| ~ A]wc=  
11. Algorithms to combine these estimates and produce a xx are gTXpaB<  
1o%#kf  
presented and justified. ld@+p  
12. The use of the method is discussed and an example is given. H3<tsK=:  
13. Results of an experimental applications of this xx analysis CTRUr"  
procedure are given to illustrate the proposed technique. Sb/?<$>  
14. This paper analyses problems in )>:~XA|?  
15. This paper outlines the functions carried out by ... :LY.C<8  
16. This paper includes an illustration of the ... d X cbS<  
17. This paper provides an overview and information useful for J W@6m  
approaching E 6TeZ%g  
18. Emphasis is placed on the construction of a criterion function by PJC(:R(j  
which the xx in achieving a hierarchical system of objectives are e"%TU  
evaluated. ]EX6Y  
19. The main emphasis is placed on the problem of xx Vb`Vp(>AU  
20. Our proposed model is verified through experimental study. P\7*ql`  
21. The experimental results reveal interesting examples of fuzzy )bOfs*S  
phases of: xx, xx UrizZ 5a  
22. The compatibility of a project in terms of cost, and xx are likewise v"o" W[  
represented by linguistic variables. >0{}tRm-P&  
23. A didactic example is included to illustrate the computational "kyCY9) %  
procedure KUUA >'=  
Chapter 1. Introduction hT X[W%K  
Time '6dVe 2V  
1. Over the course of the past 30 years, .. has emerged form intuitive _Hv+2E[4Z  
2. Technological revolutions have recently hit the industrial world wc;n= %  
3. The advent of ... systems for has had a significant impact on the fZo#:"{/K  
4. The development of ... is explored E{|B&6$[}  
5. During the past decade, the theory of fuzzy sets has developed in a qgrJi +WZ  
variety of directions nnv|GnQST  
6.The concept of xx was investigated quite intensively in recent years o6[.$C  
7. There has been a turning point in ... methodology in accordance ukSv70Ev  
with the advent of ... Lb/GL\J)  
8. A major concern in ... today is to continue to improve... .H S6DOQ  
9. A xx is a latecomer in the part representation arena. 1|MR XK  
8F}drK9>F  
10. At the time of this writing, there is still no standard way of xx q Q\j  
11. Although a lot of effort is being spent on improving these Q1,sjLO-a  
weaknesses, the efficient and effective method has yet to be I%3[aBz4  
developed. ljKIxSvCFp  
12. The pioneer work can be traced to xx [1965]. Tlw'05\{J  
13. To date, none of the methods developed is perfect and all are far Al-`}g+^  
from ready to be used in commercial systems. ==dKC;  
Objective / Goal / Purpose n3a.)tcC  
1. The purpose of the inference engine can be outlined as follows: 1F@ j?)(  
2. The ultimate goal of the xx system is to allow the non-experts to }UhYwJf89  
utilize the existing knowledge in the area of manual handling of loads, vF27+/2+R  
and to provide intelligent, computer-aided instruction for xxx. =>$)F 4LW  
3. The paper concerns the development of a xx za_b jE  
4. The scope of this research lies in xa~]t<2  
5. The main theme of the paper is the application of rule-based J usU5 e|  
decision making. 6cH8Jr _  
6. These objectives are to be met with such thoroughness and %O"8|ZG9{  
confidence as to permit ... j6m;03<|  
7. The objectives of the ... operations study are as follows: p#@#$u-  
8. The primary purpose/consideration/objective of 40t xZFQ0  
9. The ultimate goal of this concept is to provide QZzamT)"  
10. The main objective of such a ... system is to zPby+BP  
11. The aim of this paper is to provide methods to construct such 4zoQe>v~  
probability distribution. U$OZkHA[  
12. In order to achieve these objectives, an xx must meet the }%|ewy9|CW  
following requirements: M8/a laoT  
13. In order to take advantage of their similarity GK@OdurAR  
14. more research is still required before final goal of ... can be WK{`_c U^  
completed ~>u .d  
15. In this trial, the objective is to generate... &hOz(825r  
16. for the sake of concentrating on ... research issues MGg(d  
17. A major goal of this report is to extend the utilization of a recently +?_!8N8  
developed procedure for the xx. `w@:h4f  
2\xw2VQ@P  
18. For an illustrative purpose, four well-known OR problems are qN!oN*  
studied in presence of fuzzy data: xx. 7N$2N!I(  
19. A major thrust of the paper is to discuss approaches and B~Sj#(WEa  
strategies for structuring ..methods f"MI D6  
20. This illustration points out the need to specify CFtQPTw  
21. The ultimate goal is both descriptive and prescriptive. ZEqW*piI  
22. Chapter 2. Literature Review *;<fh,wOk  
23. A wealth of information is to be found in the statistics literature, _#8hgwf>  
for example, regarding xx }`tSRB7  
24. A considerable amount of research has been done .. during the ) c@gRb~  
last decade ;4F6 $T'I  
25. A great number of studies report on the treatment of QS#@xhH  
uncertainties associated with xx. u?^V4 +V  
26. There is considerable amount of literature on planning iN;Pg _Kq  
27. However, these studies do not provide much attention to S=@+qcI  
uncertainty in xx. h@,ja  
28. Since then, the subject has been extensively explored and it is (v]%kXy/G  
still under investigation as well in methodological aspects as in v:O{"s  
concrete applications. h]4xS?6O  
29. Many research studies have been carried out on this topic. G~9m,l+  
30. Problem of xx draws recently more and more attention of system I Xc `Ec  
analysis. ;_}pIO  
31. Attempts to resolve this dilemma have resulted in the ;UdM8+^/V]  
development of ^C>kmo 3J  
32. Many complex processes unfortunately, do not yield to this yV^Yp=f_  
design procedure and have, therefore, not yet been automated. DE(XS zX  
33. Most of the methods developed so far are deterministic and /or z/7q#~J,  
probabilistic in nature. <A3%1 82  
34. The central issue in all these studies is to c`O~I<(Pm  
35. The problem of xx has been studied by other investigators, =G-OIu+H!U  
however, these studies have been based upon classical statistical l}nVWuD  
approaches. -#\T  
36. Applied ... techniques to j<A OC?  
37. Characterized the ... system as %YG?7PBB  
C5~#lNC  
38. Developed an algorithm to Fis!MMh.$  
39. Developed a system called ... which V U3RFl  
40. Uses an iterative algorithm to deduce *>m[ZJd%=  
41. Emphasized the need to y0%@^^-Ru  
42. Identifies six key issues surrounding high technology !BQt+4G7  
43. A comprehensive study of the... has been undertaken VG5+ u,U6>  
44. Much work has been reported recently in these filed i"J y>'  
45. Proposed/Presented/State that/Described/Illustrated/ \/Y(m4<P  
Indicated/Has shown / showed/Address/Highlights Tm %5:/<8  
46. Point out that the problem of i?T-6{3I  
47. A study on ...was done / developed by [] \Ec<ch[)c  
48. Previous work, such as [] and [], deal only with N&8$tJ(hhx  
49. The approach taken by [] is Y9.3`VX  
50. The system developed by [] consists [@i:qB>B  
51. A paper relevant to this research was published by [] J/]%zwDwS  
52. []'s model requires consideration of... b(K"CL\p  
53. []' model draws attention to evolution in human development f2g tz{r  
54. []'s model focuses on... =, XCjiBeC  
55. Little research has been conducted in applying ... to #`Su3~T=S  
56. The published information that is relevant to this research... ' m<Lx _i  
57. This study further shows that XYU5.  
58. Their work is based on the principle of ,_V V;P  
59. More history of ... can be found in xx et al. [1979]. y##h (y  
60. Studies have been completed to established X,Ql6uO  
61. The ...studies indicated that s&7 3g0$$  
62. Though application of xx in the filed of xx has proliferated in J|W E&5'  
recent years, effort in analyzing xx, especially xx, is lacking. '| H+5#  
Problem / Issue / Question S,5ok0R  
63. Unfortunately, real-world engineering problems such as _H$Lu4b)N  
manufacturing planning do not fit well with this narrowly defined qT#e -.G  
model. They tend to span broad activities and require consideration gWj-@o\  
of multiple aspects. z:Am1B  
64. Remedy / solve / alleviate these problems J[ }H^FR  
67. ... is a difficult problem, yet to be adequately resolved M+ [ho]  
JBY.er`6C  
68. Two major problems have yet to be addressed UytMnJ88  
69. An unanswered question \HGf!zZ  
70. This problem in essence involves using x to obtain a solution. TpU\IQ  
71. An additional research issue to be tackled is .... ZvRa"j  
72. Some important issues in developing a ... system are discussed aUw-P{zp%  
73. The three prime issues can be summarized: +bumWOQ'  
74. The situation leads to the problem of how to determine the ... _xKn2?d8g  
75. There have been many attempts to UA<Fxt  
76. It is expected to be serious barrier to --$* q"  
77. It offers a simple solution in a limited domain for a complex `Gio 2gl9  
problem. +a5F:3$  
1. There are several ways to get around this problem. N{%7OG  
2. As difficult as it seems to be, xx is by no means new. j [U#J  
3. The problem is to recognize xx from a design representation. $a_y-lY  
4. A xx problem can trace its roots to xx. vPDw22L;'  
5. xx [1987] used a heuristic approach to simplify the complexity of }n^Rcz6HeO  
the problem. C]!2   
6. Several problems are associated with them. SwOW%o  
7. Although some progress has been made in this area, at least two }$_@yt<{W@  
major obstacles must be overcome before a fully automated system C hF~  
can be realized. &jJu=6 U B  
8. Most problems in practice are complicated v0DDim?cc  
9. More problem surface here. 8^>qor.]M  
10. Hamper effort toward a xx system #8Bh5L!SJ1  
11. In order to overcome the limitations due to incomplete and c_>Gl8J  
imprecise xx knowledge, a xx program has been developed, which i(4<MB1 a  
bases its knowledge upon the statistical analysis of a sample :+\0.\K0!  
population of xx 03~ ADj  
12. The above difficulties are real challenges faced by researchers 9,?~dx  
attempting to develop B%tF|KKj  
13. This type of mapping raises no controversy to the issue of gH//@`6  
membership function determination. D7hTn@I  
14. However, attempts to quantify the xx have met both theoretical flCT]ZR  
and empirical problems. t'U=K>7  
+[G9PP6  
15. It has become apparent that in order to apply this new sT?{  
methodological framework to real-world problems and data, we have QP\9#D~  
to pay attention to the problems of xx and xx. gKh*q.  
Chapter 3. Proposed methodology :-RB< Lj  
Assumption LhL |ETrJ  
1. In the case when the assumption of a xx seems to be too W1REF9i){  
restrictive or inadequate, the formulation with Fuzzy termination TsFhrtnx&X  
time, i.e. given by a fuzzy set in the space of control stages, may be ?F05BS#)X  
applied. .`IhxE~mN  
2. We assume here the fuzzy constraints to be state-dependent, and ':n`0+Eh  
the fuzzy goal to be the same for all the control states, xx, which z"4 q%DC  
stems from the problem's nature. 72;'8  
3. An approach to the solution of this problem is presented under the ek&~A0k_o  
assumption that the sampling rate Decision can be made prior to the /"e@rnn  
execution of the experiment, as opposed to being made while the _}5vO$kdO  
experiment is in progress. Pxl,"  
4. Another assumption made above is that there are precise odds at iYr)Ao5X  
which the expert is indifferent. h~#iGs  
5. Main simplifying assumptions are: K+~?yOQj  
6. This, in our view, is a questionable assumption. "lt<$.  
Outline / Structure / Module t~L4wr{B  
1. An outline of the research Q^ W,)%  
2. Information is incorporated within the scheme :of([e|u6  
3. Is built into ... structure 6_%Cd`4Z  
4. A nice modular structure. {YiMd oMhg  
5. The principles of ... are applied as modularized criteria i "V.$|,  
Classification wXUR9H|0(  
1. A xx system comprises three main components: d dgDq0N1j  
2. Must decompose the original .. into a set of .. i`+w.zJOH8  
3. Consists of the following steps: byI" ?  
4. This is summarized in the following steps: 6'r;6T *  
ug,AvHEnB  
5. Can be broadly classified into the following areas: [0Xuo  
6. Can be characterized by its function of effectively processing the WHx #;  
7. Can allow further breadth of application of ...into more bkdXBCBx?  
8. The following steps should be followed ?pIELezfK  
9. xx can be classified by a different ways. }aOqoi7w  
10. Based on the xx, one may classify xx into the following: Sqi9'-%m  
11. This catalog may change due to wear, breakage, and purchasing. s={>{,E  
System J299 mgB  
1. Unlike many conventional program, expert systems do not Un8' P8C  
usually deal with problem for which there is clearly a right or wrong NlF*/Rs  
answer. -n 7 @r  
2. The system consists of both ... and ... hwM<0Jf   
3. The system has a hierarchical modular architecture organized on mo<*h&;&  
three levels. `]65&hWZL  
4. expert system domains are area of expertise qcO~}MJr}^  
5. To develop a xx system for xx, the following factors must be T"P}`mT  
considered: R'Ue>k  
6. The system has been developed / designed to determine KGDN)@D  
7. The system has proven to be able to S$SCW<LuN  
8. The domain in which an expert system operates is a particular K^o$uUBe  
domain 3~fi#{  
9. The system comprises a ... with DSHv BFQ  
10. The system is [feature-oriented ] / based on the ... technique dm/3{\ 4  
11. The system environment must be relatively stable 9wCgJ$te  
12. The system is utilized to generate, load, store, update and {$EX :ID  
retrieve ... wxB HlgK4z  
13. The development of a xx system has two stages: xx stage and xx _f 2rz+  
stage. &M5v EPR  
14. The most essential part of .. system is the ... 9Avj\G  
15. The successful developments in ESs have made them an N^B7<~ bD  
important tool in the development of "3jTU  
16. An automated system was developed for }s?3   
17. In this case, the system can be considered to be generative. o,j_eheAM  
Mh3.GpS  
18. An interactive automatic ... system [&~x5l 8\C  
19. A …. is commonly thought of as a truly integrated .. system pGU .+[|(  
20. Should be capable of being generated from a ... system #<Y3*^~5d  
21. xx is an important part of the integrated system. CV HKP[-  
22. The model consists of four rule bases, each of which addresses a zdem}kBIe  
separate problem in the hierarchy of scheduling decision. i'CK/l.H  
23. The rule bases are linked to each other in a chin-like manner in ]UIN4E  
the sense that the consequent of one rule base constitutes a part of 0X99D2c  
the antecedent of the next rule base. ~c&sr5E  
24. The rule base consists of all possible combinations of the gjD|f2*x  
linguistic terms associated with the linguistic variable of the \$Ky AWrZi  
antecedent of a rule. %npLgCF  
Computer System ~9rNP{ +  
1. The system has been implemented using Prolog language in an vD2(M1Q  
MS-DOS environment. Prolog was chosen because it offers a well 1 39T*0C  
known and flexible environment in which fuzzy reasoning may be nGTGX  
easily implemented. 1r4NP  
2. The current version of the xx program when compiled with = ZoNkj/^,  
WATFOR77 results in an executable code of about 270K bytes. q%bFR[p<*  
Typical run time, when run on a XX computer (an IBM compatible l %zbx"%x  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min gCYe ^KJ  
to 2h, depending on the size (or complexity) of the problem. "Cvr("'O  
3. Time consuming procedures have been implemented in /xSJljexz  
C-language and directly linked to the Prolog environment. @) MG&X  
4. The xx process, once the xx's data has been entered, requires M-;Mw Lx  
approximately 180 seconds. {c I~Nf?i  
5. It should be noted that the computation was done with a 20 Hhz, (-1{W^(  
80386..209;based microcomputer equipped with a 80387 math w?3ww7yf`  
co-processor. O)R}|  
6. The computer programs used for the analyses, one based on the xx 3y$6}Kp4?  
method and the other based on the new method, were written in FW2x  
FORTRAN with a compiler that supports the math co-processor. 7C Sn79E  
7. Lisp, Prolog give maximum flexibility but also maximizes {]|<|vc;GI  
"I pbR  
development time. g"!cO^GkT  
l Internal representation is the way a model is represented in the 9;n*u9<  
computer. .`u8(S+  
l An interactive menu-driven procedure is used in this study Q|VBH5}1O  
l Shell can be develop very fast at the cost of time fairly severe zZY1E@~  
limitations. 6]GHCyo  
l While there is no measurable saving of time for the case involving r.u\qPT&  
five criteria, the saving is dramatic for the case involving 10 criteria q$H@W. f  
-- the computation time reduces from 10 hr 40 min to about 1 min. 1f"}]MbLR  
l This combination is being implemented in an objected-oriented xz} CqPJ#  
programming environment (Smalltalk-80 system) to solve problems 7On.y*  
encountered in construction xxx. fMHw=wJQ  
Method / Approach / Study / Process Model / Equation /Algorithm / ^K8XY@{&  
Rule / Formula / Technique UH7?JF-D  
l A discussion is presented of a problem-solving system 03iy[~Y2  
l To improve the efficiency of the method, the following approach 2A*,9S|Y  
may be applied. DqI"B  
l In order to an investigation was made to find the causes of the I"8Z'<|/\q  
l Although large collections of rules and equations have been p_zVrlV b  
complied, none are generally accepted Mx# P >.  
l This approach will be explained and discussed thoroughly in the { /8s`m  
body of the report. Mu.oqT  
l This can be accomplished by 'U GgY3  
l This algorithm to compute the total cost can be described step by )-iUUak  
step as follows: ZOppec1D  
l The above preliminary analysis has provided important )Fqtb;W =  
information c>r~pY~$  
l Various methods have been proposed for selecting an optimum... X fEp_.~JM  
l These concepts have been applied to 4Pf"R ~&[  
l On the basis of the concept mentioned above, vZ6R>f  
l This can be achieved by l Ny<E!0  
l This fact suggests that a new concept bx7hQzoX=b  
l This was accomplished by taking ... iH dX  
nkN2Bqt$  
l The preparatory stage is very time consuming process. fkk9&QB%(  
l Test are performed for validity, completeness, and compatibility Y{t}sO%A  
l There is little hope of achieving successful ... AXo)(\  
l There has been an increasing awareness of the potential of using |\C.il7  
most ..so far made have not taken this approach, with the exception O!F"w !5@  
of qr*e9Uk^  
l Only a few studies can be found. r $LU$F  
l It is a very tedious process to go through >;s2V_d  
l It is only when .. has been completed that .. may be effected 2@&"*1(Xu  
l The entire interpretation process is conducted in one's head. UU#$Kt*frR  
l These approaches are sometimes very tedious. # ?u bvSdU  
l Several techniques can be used <rU+{&FKNL  
l A polynomial parametric model can be written as [the %2?"x*A  
following]/[follows]:  |>Pv2  
l A xx model is constructed/formulated using xx. 0 zjGL7  
l A xx model represents an xx by its xx. UyMlk  
l A process decision model captures the logic essential to a^&RV5o  
l From the equation above, xx is equal to the summation of xx /sSif0I24  
times the ... S! .N3ezn  
l The validity of a xx model can be checked using Euler's formula. I( 9+F  
l Given a model, one can mathematically determine whether ... or ... %VrMlG4hx  
l Equations for xx need to be derived and implemented in the S2=x,c$  
system. X(>aW*q  
l A number of heuristic rules have been developed for <.@w%rvG  
l Optimum .. techniques can be made more reliable by ... so that woU3WS0  
l An algorithm based on the characteristic ... is used to determine ^$8WV&5q>  
l Euler's formula states the following: A&Q!W)=  
l The completed model should agree with the formula. I=8MLv  
l For manufacturing purposes, a detailed and precise model of the t\ 9Y)d  
object is necessary O(T6Y80pU  
l Engineering design models are very well defined; therefore, ve*6WDK,H  
l To keep the domain narrow enough to be implementable, yet wide >>>MTV f  
enough to ?zK>[L  
be useful. V## TG0  
qh wl  
Point of View .zdmUS :  
l from an implementation standpoint, &$pA,Gjin\  
l From the point of view of this application, CWE^:kr6  
l From this point of view, Zadeh suggested an inference rule named PW-sF  
xxx (CRI for short). l37l| xp~  
l Information is the meaningful interpretation and correlation of  w"h'rw  
some aggregation of data in order to allow one to make decisions. TfA;4 ^  
l From a practical point of view, the computational aspects of an zS}!87r)  
FLC require a simplification of the fuzzy control algorithm. V}t8H  
l The use of a hammer to insert screws, although partly effective, Ns[.g uWu-  
tends to distort, destroy, and generally defeat the purpose of using a S!~p/bB[+I  
screw [Kusiak AI Implications for CIM p.129] 8t& 'Yk  
Justification ^|%7}=e  
l We choose the so called xx in our experiment because it has G4,BcCPQ  
received wide acceptance and can 8"x\kSMb  
l Prolog was chosen because it offers a well known and flexible 9h^TOZK)  
environment in which fuzzy reasoning may be easily implemented. a~`,zQ -@  
l The rationale behind this is that it can be much easier for an 5ZHO+@HiFH  
estimator to rate a cost as high than to attempt to place a dollar x/#.%Ga#T  
value on the estimate. 2v1dSdX,W  
l This strategy has been widely used in fuzzy control applications lKy4Nry9  
since it is natural and easy to implement. 3_c4+u"6  
l A function definition expresses the membership function of a HlX2:\\  
fuzzy set in a functional form, typically a bell-shaped function, etc. 3- 4jSN\  
Such functions are used in FLC because they lead themselves to ^p #bxN")  
manipulation through the use of fuzzy arithmetic. aW$))J)0  
l It should be noted that in our daily life most of the information on C~VyM1inD  
which our decisions are based is linguistic rather than numerical in ~2?U Ev6  
nature. Seen in this perspective, fuzzy control rules provide a natural %Z#[{yuFs  
framework for the characterization of human behavior and decisions w'!J   
analysis. ; WsV.n  
l Many experts have found that fuzzy control rules provide a Zq"wq[GCN  
{]:B80I;2  
convenient way to express their domain knowledge. This explains kZvh<NFh_  
why most FLCs are based on the knowledge and experience which Ix|^c268o<  
are expressed in the language of fuzzy "if-the" rule. N!=Q]\ZD  
Chapter 4. Examples ogKd}qTov  
Example/ Data 7)v`l1  
l The data used in the following example was taken from an kn7Qv k[+  
experiment in which xx was measured between x and x using a xx m3iB`  
technique. Pr^p ^s  
l The data consists of over xx measurements. +\`t@Ht#  
l An example of xx is discussed and the control rules of xx are rlVo}kc7:  
compared with a xx 'QEQyJ0EB  
l Examples of complex processes to which this technique may be @V# wYt  
applied are xx, xx, etc. Z8_Q Kw>  
l The following example is constructed only for the purpose of .TWX,#  
illustrating the computational procedure discussed. )VCRbz"[g  
l This example clearly demonstrates that the profile of an individual ; +E@h=?  
xx, or a very small group of xx, with no enough data to be studied |MXv  w6P  
statistically, can be meaningfully analyzed by fuzzy possibilistic wC[Bh^]  
methods. -,# LTW<.  
l There is no space here to go into detail on all these methods, but ,\ RxKSU  
deserve a mention and the bibliography will point to detailed 0^{?kg2o_  
references for those wishing this level of detail. &OSyU4r  
l Note that the golf ball spotting example is used throughout the zE NlL  
paper. vVi))%&S(  
Comparisons :-kXZe  
l As well, the pros and cons of these representations from a process S4Vv _k-&  
planning point of view will be discussed. Qvd$fY**  
l The method of using xx to implement xx described by Zadeh 'qg q8  
(1973) appeared more suitable gZr/Dfy  
l As discussed [in the previous section]/[preciously], B:\TvWbu  
MrA&xM  
Relation _(8HK  
l We can not invert F' directly because it defines a many-to-one wB;'+d&  
mapping. b]h]h1~hHH  
l The relationships appear very complicate Ng} AEAFp  
l Lifting tasks involve complex and imprecise relationship between '.wyfSH@  
the task variables and the human operator's characteristics. K>`7f]?H*e  
l These methods are based on the relationship between ... and ... k+S 6)BQ7U  
l The fundamental concept of a fuzzy rating language is that we can t*)-p:29h  
establish a relationship among terms such as high, medium, and low, 7^~pOFdH  
and then modify these relationships. tU%-t lU9?  
l This article will thus mention the latter as well as the former. .#;;pu7W  
l The former two bear a close relation to a fuzzy Cartesian product. 9J?G"JV?  
Importance F=hf bCF5x  
l The emphasis is on an implementation of a general approach to 3a4 ]{  
rule based decision making. imtW[y+4  
Consideration / Attention T@]vjXd![  
l Careful evaluation is necessary to ensure t p.qh]2c  
l Such a formulation does not change further considerations. y\Z-x  
l Considerable attention has been paid to r^?%N3  
l Attention should be paid to an important finding of this |400N +MK  
investigation. gtHk1 9  
l Caution should be exercised in this process to avoid ... )^^r\  
l Primary consideration is given to ... components, though others [j5 ^Zb&0  
can be accommodated (o\:rLZu  
l After ... has been defined by ..., a carefully analysis is carried mLO{~ruu  
out/performed to determine Ox&g#,@h  
l A number of factors such as ...need to be taken into consideration %&^F.JTt\  
before making the appropriate decision. q5[%B K  
l It should be noted that Lvc*L6  
l It is important to point out that ... / vge@bsE  
l These considerations have heightened interest in the possibility of R$*{@U  
providing ... B{|P}fN5}  
nrA}36E  
l We should stress the fundamental importance of the xx }_M .-Xm  
Chapter 5. Results. ;=Bf&hY&  
Advantages / Disadvantage ha'oLm#  
l One of the major advantages of this new measure of xx is that it Gz!72H  
can be applied to the experimental study of 8\y%J!b  
l One advantage of using a .. is the ease of preparing it. C>@~W(IE  
l The xx system is versatile E+"INX7  
l It has a very fast decision making process bsPwTp^  
l All the algorithms involve mostly logical operations. KL0u:I(lWU  
l It can be easily and without additional cost implemented in a s iv KXd  
microprocessor-based environment. k KL^U  
l It can reduce the waste of designing from scratch. dp2".  
l The advantages of using a xx to represent xx are the following: 6yTL7@V|B  
l However, xx is not without its shortcomings. w])bQ7)  
l In most cases, the xxx shows an improvement over the existing 8{ JTR|yB  
xxx. h.4;-&  
l Compared to the existing xx, the impacts of the xx are generally ; ZL<7tLDb  
reduced by 5% to 9%. Roy`HU ;0a  
l The "best case" results shows a savings of 6% to 9%. ui70|  
l Most of the existing works based on xx approach can only YT, 1E>rd  
recognize a xx . 0tn5>Dsk  
l Most of the above methods are computational expansive and b3EW"^Ar  
limited to xx. F^T7u?^)  
l Some other advantages of xx are the following: HC4ad0Gs+{  
l The problem is the limitation of this method to a limited domain of vo uQ.utl  
parts. 'iMI&?8u  
l It proved limited in application because it demanded precision in 4VaUa8 D  
system modeling that was impossible in practice. ;csAhkf:S  
l There are advantages to be gained in the structuring of costs and ?8! 4!P%n  
benefits, the use of xx, *-_` xe  
l The disadvantages of this method are also disadvantages of 1uMnlimr  
conventional xx approaches. lUCdnp;w'  
}%$9nq3  
l This combines the best features of both techniques ;N]ElwP  
l Hopefully, this tool can be as the reference framework of for z~o%U&DO}  
developing a xx platform, and helping the administration, marketing, }#EiL !Pv  
and knowledge management activities in virtual communities. u33+ikYv  
Results 9N=Dls  
l An improvement on the result shown above can be made by based i0p"q p  
on the data provided b4ORDU  
l Discussion of these theories is beyond the scope of this review R\0]\JEc  
l Based on the information contained in this q* Ns]f'a  
l The result can be categorized into nine classes <diI*H<G  
l The results are illustrated by an example i7e{REBXb  
l The experimental results for each xx time are reported in Table 2. GsqrKrbJ  
l From the results obtained so far, it seem that Zn #ri 8S  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn ?$-OdABXHK  
as Z9=Cw0( w?  
l Although much effort has been made to., this reality is far from S 5m1~fz  
completion. ,W{Qv<oo  
l The results indicate that the total benefits are higher than the 'cH),~ z  
total costs. ET=q 1t8  
l Their results may then serve as guidelines for lower level models, fcJ#\-+E  
less fuzzy and more detailed. v8 6ls[lzu  
Chapter 6. Conclusion uO7Ti]H  
l From the discussion, one may conclude that ... UvQxtT]  
l Form the above discussion, the conclusion can be reached that m]7yc>uDy  
l The conclusions drawn are also valid n2(~r 'r)  
l In conclusion to this, it becomes obvious that the problem of xx ^Y #?@  
lies not only in... Pb]s+1  
l We have attempted to introduce some concepts associated with a r(cS{oni  
theory of VEb}KFyP  
xx based on fuzzy sets. Q*mPU=<  
l Considerable more work, hopefully, will be done in this area O%0G37h  
l A fuzzy set procedure is proposed to solve xx selection problems qMI%=@=  
x:sTE u@  
interwoven with imprecise data  De4+4&  
l Employing the compositional rule of inference, the assessment of ;"joebZ/  
the xx compatibility in achieving prescribed xx projectiles in any O^U{I?gQ  
level of the hierarchy is made possible. k*z)AR  
l This paper has presented a theoretical and experimental study of #<v3G)|aS  
the xx process and xx concept. Z[0xqGYLB  
l The experimental research results will hopefully serve as useful i/)Uj-*G)  
feedback information for improvements for xx work. U&`M G1uHe  
l The scope of this contribution was to introduce a xx method. xQaN\):^8  
l In general, fuzzy sets theory provides an alternative foundation )W*S6}A  
for xx analysis in a fuzzy environment. !\?? [1_e  
Future Research s)ZL`S?</  
l Thus, first extension of the approach could be, G.T}^ xHmL  
l Present some cues for a further approach from Fuzzy Sets Theory $+7M Y-9T  
application to 70|Cn(p_  
l Some improvements to the scheduling aspect of the model may 6I_W4`<VeZ  
be brought through additional levels in the hierarchy for more j>?c]h{-  
detailed representation of the scheduling activity. 8LR_K]\  
Tables and Figures M@s2T|bQw  
l Figure 7-1 sketches these relationships. L6 hTz'  
l The graphical representation of these functions is shown in Figure  b.C!4^  
1. Bv!j.$0d{  
l The xx may be depicted as in Figure 1. 9{xP~ 0g  
l Figure x shows the schematic diagram of the ` [@ F3x  
l Figure 1 though 2 provide a ... that 1(rH5z'F  
l the architecture of this expert system for .... is illustrated in Figure kQ{pFFO  
2. gt'0B-;W  
l Figure 2 gives the outline of an ... system In^$+l%O[  
l Table shows the &m +s5  
l as shown in Table 1 and 2 *Swb40L^  
l This concept is illustrated in Figure 2 [T~O%ly7x&  
l At the top of Table xx are shown two blocks of data. [^~Fu9+"  
*4]I#N  
l Each table or matrix has constructs xx through xx as g3Kc? wTC  
row-headings, -4;{QB?  
xx through xx as column-headings. _YO` x  
l A table of .. is developed and significant recommendations are S-'iOJ 1]  
made. 3 D;\V&([  
CONJUGATION F~{yqY5]n  
To Indicate Addition C!RxMccTh  
l additionally, again, also, and then, as can be easily understood, (#LV*&K%IC  
besides, equally important, especially, finally, for the same reason, 9(ANhG  
first, further, furthermore, in addition, last, likewise, moreover, next, fLct!H3  
second, third, too, evidently, obviously, roughly speaking, broadly QZt/Rm>W0  
speaking p24sWDf  
To Indicate Cause and Effect >Y)jt*vQ  
l accordingly, as a result, consequently, for this reason, hence, in "%-HZw%X  
short, otherwise, then, therefore, thus, truly IWuR=I$t  
To indicate Comparison m:II<tv  
l in a like manner, likewise, similarly , alternatively G5bi,^G7  
To Indicate Concession 'hf-)\Ylf  
l after all, although this may be true, at the same time, even though, r3_@ L>;  
even so , I admit, naturally, of course Wi hQ j  
To Indicate Contrast 9V[|_  
l and yet, at the same time, but, for all that, however, yet, in fact, in uTBls8  
contrast, in the real life, in spite of, nevertheless, notwithstanding, [[oX$0Fp\!  
normally, on the contrary, on the other hand, still, traditionally, lmQ!q>N   
rather, unfortunately, t 0nGZ%`  
To Indicate Time Relationships: X -w#E3  
after a short time, afterwards, as indicated earlier, as long as, as soon cC&R~h]|  
`c(,_o a{  
as, at last, at length, at the moment, at that time, at the same time, Pm#B'N#*N|  
before, earlier, currently, immediately, in the meantime, in recent )=[K$>0k  
years, lately, later, meanwhile, often, of late, presently, recently, vA;ml$  
soon, shortly, since, thereupon, temporarily, therefore, until, when, Xe:B*  
while VKS:d!}3E  
To Indicate Special Features or Examples: g@`14U/|  
for example, for instance, incidentally, indeed, in fact, in other words, XDz![s  
in particular, in practice, specifically, that is, to illustrate, in this <!-8g!  
respect, theoretically, as mentioned before / above ()}O|JL:K  
To Indicate Summary: el;^cMY  
in brief, in conclusion, in short, in summary, on the whole, to )p(5$AR7  
conclude K>,Kbs=D6  
, in general, to summarize, to sum up, as a result, ultimately, Czid"Ih-  
VERB PHASE rcOpOoU|  
l build a .. model f/eT4y  
l build up the key link D2[uex  
l began a new era in ... B#B$w_z  
l can be regarded as / achieved / used to/for / found / obtained 0A9x9l9Wd  
through N 2L/A  
l can result in Y^2`)':  
l carries out ... tasks B.'@~$  
l production information in order to simultaneously I&q:w\\z8|  
l contains all information necessary to describe wU2y<?$\8  
l do not make use of production information \G#Qe*"'K  
l deals with U@ALo  
l end with failure vD[@cm  
l fetch the information from the model directly (+>+@G~o  
l has great potential / yet to be resolved / spurred the  S`U Gk  
development of / ^h1VCyoR*  
been recognized as 0{BPT>'  
l BE aimed at / built up / carried out by / essentially concerned dt',)i8D  
w> IkC+.?  
with / considered to be the key technology / associated with each A AH-Dj|&l  
feature of a compo XG<^j}H{}  
site component / cable of / currently implemented for / GH7{_@pv8  
demonstrated by an example / finally reached / made equal to / l^u P?l"  
equivalent to / more suitable to / oriented to / interpreted as / +&4PGv53J  
pointed out / potentially of great benefit in the complex task of / 5y(irbk7  
shown in / used to effectively guide the search ::j'+_9  
l makes use of [YHvyfk~_  
l make up cEsBKaN  
l meets the needs of real life production,/ the current demands p0qQ(  
placed upon it H'q&1^w)  
l must be justified j72cS Rv  
l point out Te[[xhTyw  
l play an important role W#u}d2mP  
l relates to @Sq=#f/=  
l rely on hO;bnt%(  
l satisfy the needs )N)ziAy}  
l determine the total requirements for the ... R>/M>*C  
l uses ... as a key to search for... i#kRVua/  
l without relying on D'fP2?3FK  
l will be available/ performed/ overlooked @T;O^rE~N  
NOUN PHASE sx*1D9s_  
l a basic technical function of jph~ g*Z  
l a critical need K ANE"M   
l a key / principle feature of px//q4 U  
l a substantial impact on gW/H#T,  
l an intensive review was conducted Ct}"o  
l an increasing need for expanding the application of .... &Ei dc .  
l an important component / function / aspect / issue QAygr4\X^  
l each rule is numbered in sequence A'[A!NL%  
l each of these involves OiM{@  
l for this calculation, it is necessary to define |i|YlWQS  
l in the physical environment / integration of ]3d&S5zU  
*9PS2*n  
l in the reality of situations where … !PUhdW  
l many aspects of R)<Fqa7Tm  
l most past efforts have been spent on ... *zX<`E  
l common sense to a well studied and documented technical field. {H])Fob  
l sources of additional information on ... are listed D|e6$O5o  
l systematic and rationally structured format {E6W]Mno  
l the basis on which a range of ...operations can be established is `Z%XA>  
shown M\`6H8aLn  
l THE basic philosophy / principles of / key element / general >W-e0kkH  
hypothesis / candidate list of / concept of ... has attracted wide V{d"cs>9  
interest / function is concerned with / heart / impact / nature / role y:2o-SJn  
/ task of / kernel functions N"E\o,_  
l the number of parts needed to 3>L1}zyM]  
l the above statement means that ~gBqkZ# y?  
l the output data is passed to A=XM(2{aN  
l the proposed method / underlying principle Llk`  
l the recommendations made in this report, if implemented, should E+~~d6nB  
l this information resides in xPb`CY7  
l this process is composed of ... different ... operation brTB /(E  
l along with the use of OcSLRN?t  
l concerning general aspects of \H" (*["&  
l due to YDmFR,047  
l for later use in generating..., niA{L:4  
l in turn, {ld([  
l IT IS believed / noted / assumed / suggested / shown / quite Nm; ka&'  
evident / appears / implies that / intended for / of no important to 0;XnNz3&  
l it can be claimed/concluded that x`o_&09;CG  
l it demonstrates the decisions required of OKf/[hyu  
l it also provides information to .. [n:R]|^a  
l it becomes essential to lT(MywNsg  
l let ... be the probability that SQz>e  
l once... is written, it is compiled into... .d8~]@U!<  
l suppose it is observed that UhEnW8^bz1  
l this is because kwyvd`J8  
/\=g; o'  
l this results in a W5yqnjK $4  
l upon completion of the ... analysis, U#Z}a d?VX  
l when the knowledge is of mathematics or quantum physics, it will /Wj9Stj5  
also be 9^aMmN&6N2  
recorded in books and papers a]ftE\99  
l selection of rules for using the tools, for generating operation f|< *2Mk  
plans, a2g15;kM  
is another matter of preference, since practice varies greatly. i4uUvZ f  
l for the sake of convenience Y]Xal   
l correct decision to be reach Wm"W@LPx5  
l keeping the number of rules to a minimum. R_ Z H+@O  
l a good process plan will result exhibiting several characteristics: Gb MSO  
l practical solutions PVU(R J  
l because of rather small job lot sizes ci*Z9&eS+  
l Backward reasoning can be used to answer the question "should TYB^CVSZ  
milling tool be select" different level of knowledge in the realm of  o,X ?  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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