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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 mL+ps x+  
-fn~y1  
A;PV,2|X  
Beginning Y?x3JU0 _  
1. In this paper, we focus on the need for ~C+T|  
2. This paper proceeds as follow. dksnW!  
3. The structure of the paper is as follows. 8a1{x(\z.  
4. In this paper, we shall first briefly introduce fuzzy sets and related d4tVK0 ~  
concepts wDzS<mm  
5. To begin with we will provide a brief background on the I.x>mN -0  
Introduction \!Pm^FD .  
1. This will be followed by a description of the fuzzy nature of the |ESe=G  
problem and a detailed presentation of how the required #4?3OU#  
membership functions are defined. H6QQ<~_&  
2. Details on xx and xx are discussed in later sections. eP8wTStC  
3. In the next section, after a statement of the basic problem, various -#h \8X l  
situations involving possibility knowledge are investigated: first, an 0jq#,p=l;  
entirely possibility model is proposed; then the cases of a fuzzy i[swOY z]X  
service time with stochastic arrivals and non-fuzzy service rule is UlR7_   
studied; lastly, fuzzy service rule are considered. Q&7Qht:ea:  
Review 5sRNqTIr  
1. This review is followed by an introduction. /V~(! S>  
2. A brief summary of some of the relevant concepts in xxx and xxx is [ q}WS5Cp  
presented in Section 2. dx#N)?  
3. In the next section, a brief review of the .... is given. TzjZGs W[V  
4. In the next section, a short review of ... is given with special regard ?Z"}RMM)8  
to ... W\/0&H\i  
5. Section 2 reviews relevant research related to xx. 7e4\BzCC  
6. Section 1.1 briefly surveys the motivation for a methodology of YN^8s  
action, while 1.2 looks at the difficulties posed by the complexity of GZo^0U,;  
systems and outlines the need for development of possibility Al?XJ C B@  
methods. ; 1WclQ!(  
Body G.;<?W  
1. Section 1 defines the notion of robustness, and argues for its TD@'0MaQ#  
NGxuwHIQ8  
importance. 94+#6jd e  
2. Section 1 devoted to the basic aspects of the FLC decision-making 'W)x<Iey1  
logic. 15B$Sp!/`e  
3. Section 2 gives the background of the problem which includes xxx B}p/ ,4x6  
4. Section 2 discusses some problems with and approaches to, q?6Zu:':  
natural language understanding. D:f#  
5. Section 2 explains how flexibility which often ... can be expressed ]l4\/E W6  
in terms of fuzzy time-window Ofn:<d  
6. Section 3 discusses the aspects of fuzzy set theory that are used in X6PfOep  
the ... z-,'W`  
7. Section 3 describes the system itself in a general way, including 3' ^ON  
the ….. and also discusses how to evaluate system performance. D/U o?,>8  
8. Section 3 describes a new measure of xx. m<j ^cU#J  
9. Section 3 demonstrates the use of fuzzy possibility theory in the lB,MVsn18  
analysis of xx. 7+ c?eH  
10. Section 3 is a fine description of fuzzy formulation of human q,2 @X~T  
decision. PRs[:we~~  
11. Section 3 is developed to the modeling and processing of fuzzy UZV)A}  
decision rules CnO$xE|{  
12. The main idea of the FLC is described in Section 3 while Section 4 i cZQv]  
describes the xx strategies. r /PsFv{8  
13. Section 3 and 4 show experimental studies for verifying the j,Mp["X&  
proposed model. Drg'RR><  
14. Section 4 discusses a previous fuzzy set-based approach to cost -WEi Y  
variance investigation. }L@YLnc%  
15. Section 4 gives a specific example of xxx. D0uf=BbS  
16. Section 4 is the experimental study to make a fuzzy model of ]SK(cfA`  
memory process. YTY0N5["  
17. Section 4 contains a discussion of the implication of the results of i2y?CI  
Section 2 and 3. B^eea[  
18. Section 4 applies this fuzzy measure to the analysis of xx and ~]N% {;F}  
illustrate its use on experimental data. =\`9\Gd  
19. Section 5 presents the primary results of the paper: a fuzzy set c sYICLj  
model .. Yzd-1Jvk  
qD 2<-E&M/  
20. Section 5 contains some conclusions plus some ideas for further #LF_*a0v  
work. GJ!usv u  
21. Section 6 illustrates the model with an example. !m78/[LW  
22. Various ways of justification and the reasons for their choice are WMrK8e'  
discussed very briefly in Section 2. 8 #0?  
23. In Section 2 are presented the block diagram expression of a i;yz%Ug  
whole model !iIT X,'8  
of human DM system vVE^Y  
24. In Section 2 we shall list a collection of basic assumptions which NH4EsV]  
a ... scheme must satisfy. S&@~F|  
25. In Section 2 of this paper, we present representation and =w,%W^"E  
uniqueness theorems for the fundamental measurement of fuzziness AlGD . K  
when the domain of discourse is order-dense. 'M YqCfIK  
26. In Section 3, we describe the preliminary results of an empirical erqg|TsFj  
study s|d L.@0,L  
currently in progress to verify the measurement model and to ^k~{6S,  
construct membership functions. -K+grsb g  
27. In Section 5 is analyzed the inference process through the two :Ruj;j  
kinds of inference experiments... >KC* xa"  
This Section n0nkv[  
1. In this section, the characteristics and environment under which & 9IMZAo  
MRP is designed are described. M`A bH19  
2. We will provide in this section basic terminologies and notations <Eq^r h  
which are necessary for the understanding of subsequent results. ptYQP^6S[  
Next Section $O7>E!uVD  
2. The next section describes the mathematics that goes into the %5jxq9:K  
computer implementation of such fuzzy logic statements. dEns|r  
3. However, it is cumbersome for this purpose and in practical X=_N7!  
applications the formulae were rearranged and simplified as SbrBlP: G  
discussed in the next section. O3B\K <l  
4. The three components will be described in the next two section, { H"xC~.  
and an example of xx analysis of a computer information system will T3Qa[>+\  
%q(n'^#Z.y  
then illustrate their use. zLC\Rc4  
5. We can interpret the results of Experiments I and II as in the Uo5l =\  
following sections. L@9"6&  
6. The next section summarizes the method in a from that is useful ZN',=&;n'  
for arguments based on xx h5.u W8  
Summary pOpie5)7X  
1. This paper concludes with a discussion of future research $v$~.  
consideration in section 5. tb^3-ZUb  
2. Section 5 summarizes the results of this investigation. Yc+ /="&z  
3. Section 5 gives the conclusions and future directions of research. i{!i % `"  
4. Section 7 provides a summary and a discussion of some extensions sR ~1J4  
of the paper. @va)j   
5. Finally, conclusions and future work are summarized }=az6cLE2  
6. The basic questions posed above are then discussed and Of SYOL7o  
conclusions are drawn. pX*Oc6.0mu  
7. Section 7 is the conclusion of the paper. >Ix)jSNLgo  
Chapter 0. Abstract 7-Fh!=\f/  
1. A basic problem in the design of xx is presented by the choice of a /DJyNf*  
xx rate for the measurement of experimental variables. V<?t( _Y  
2. This paper examines a new measure of xx in xx based on fuzzy gNo.&G [  
mathematics which overcomes the difficulties found in other xx aB#qzrr['8  
measures. X+ h|sy  
3. This paper describes a system for the analysis of the xx. $@7S+'Q3  
4. The method involves the construction of xx from fuzzy relations. hd8:|_  
5. The procedure is useful in analyzing how groups reach a decision. |*e >hk  
6. The technique used is to employ a newly developed and versatile =VH, i/@  
xx algorithm. m+s^K{k}  
7. The usefulness of xx is also considered. )CSb\  
8. A brief methodology used in xx is discussed. ZH~T'Bg  
9. The analysis is useful in xx and xx problem. qR--lvO  
10. A model is developed for a xx analysis using fuzzy matrices. + 79?}|  
11. Algorithms to combine these estimates and produce a xx are F]q pDv  
x$cs_q]J  
presented and justified. "'~'xaU!=a  
12. The use of the method is discussed and an example is given. CZS{^6Ye  
13. Results of an experimental applications of this xx analysis w<| ^i*  
procedure are given to illustrate the proposed technique. `sAz1/N  
14. This paper analyses problems in 1t WKH  
15. This paper outlines the functions carried out by ... p%jl-CC1  
16. This paper includes an illustration of the ... Mp:tcy,*  
17. This paper provides an overview and information useful for O\,n;oj  
approaching Vp  .($  
18. Emphasis is placed on the construction of a criterion function by 6HW<E~G'6  
which the xx in achieving a hierarchical system of objectives are loZJV M  
evaluated. }:5AB93(  
19. The main emphasis is placed on the problem of xx ek1Y aE  
20. Our proposed model is verified through experimental study. z)='MKrEt-  
21. The experimental results reveal interesting examples of fuzzy H-K,Q%;C@  
phases of: xx, xx CLg;  
22. The compatibility of a project in terms of cost, and xx are likewise RXP0 4  
represented by linguistic variables. \Azl6`Em  
23. A didactic example is included to illustrate the computational c{Nk"gEfRA  
procedure K, ae-#wgb  
Chapter 1. Introduction "2o,XF  
Time 12M&qqV  
1. Over the course of the past 30 years, .. has emerged form intuitive 1a;Le8  
2. Technological revolutions have recently hit the industrial world m64 6|G5  
3. The advent of ... systems for has had a significant impact on the -9Wx;u4]o  
4. The development of ... is explored QKDY:1]  
5. During the past decade, the theory of fuzzy sets has developed in a kz\ D-b  
variety of directions zM%ILv4  
6.The concept of xx was investigated quite intensively in recent years ,R5NKWo  
7. There has been a turning point in ... methodology in accordance lG;RfDI-  
with the advent of ... D *RF._  
8. A major concern in ... today is to continue to improve... ,'?%z>RZm  
9. A xx is a latecomer in the part representation arena. zA=gDuy3@  
PdcF  
10. At the time of this writing, there is still no standard way of xx +/y 3]}  
11. Although a lot of effort is being spent on improving these }\k"azQ`  
weaknesses, the efficient and effective method has yet to be Pf5RlpL:p  
developed. qMD6LWJ  
12. The pioneer work can be traced to xx [1965]. Wu(6FQ`H  
13. To date, none of the methods developed is perfect and all are far w-*$gk]   
from ready to be used in commercial systems. +e+hIMur  
Objective / Goal / Purpose XP~bmh,T,  
1. The purpose of the inference engine can be outlined as follows: 4 :RL[;  
2. The ultimate goal of the xx system is to allow the non-experts to fz#e4+oH  
utilize the existing knowledge in the area of manual handling of loads, "vQ$RW -  
and to provide intelligent, computer-aided instruction for xxx. N>!RKf:ir  
3. The paper concerns the development of a xx 0 Po",\^  
4. The scope of this research lies in R`q*a_  
5. The main theme of the paper is the application of rule-based iD+Q\l;%  
decision making. ]`)50\pdw  
6. These objectives are to be met with such thoroughness and pt.0%3  
confidence as to permit ... ikf!7-,  
7. The objectives of the ... operations study are as follows: N+%E=D>  
8. The primary purpose/consideration/objective of y33+^  
9. The ultimate goal of this concept is to provide ZnSDq_Uk  
10. The main objective of such a ... system is to . #`lW7  
11. The aim of this paper is to provide methods to construct such j H#Tt;  
probability distribution. a]XQM$T$  
12. In order to achieve these objectives, an xx must meet the m|!R/,>S4  
following requirements: f(~xdR))eh  
13. In order to take advantage of their similarity %>B?WR\yE  
14. more research is still required before final goal of ... can be D{g6M>,\  
completed 3;( ;' 5|Z  
15. In this trial, the objective is to generate... l6Wa~ E  
16. for the sake of concentrating on ... research issues ,tJ%t#  
17. A major goal of this report is to extend the utilization of a recently AB<|iJC  
developed procedure for the xx. spter35b[  
7ukJ\P5[&1  
18. For an illustrative purpose, four well-known OR problems are rUvjc4O}  
studied in presence of fuzzy data: xx. D# |+PG7  
19. A major thrust of the paper is to discuss approaches and ~ ?i;~S  
strategies for structuring ..methods R{Q*"sf  
20. This illustration points out the need to specify 9a}rE  
21. The ultimate goal is both descriptive and prescriptive. 1%~yb Q  
22. Chapter 2. Literature Review 1vKc>+9  
23. A wealth of information is to be found in the statistics literature, 5ZeE& vG2  
for example, regarding xx c ;_ T  
24. A considerable amount of research has been done .. during the 1| $V  
last decade Pf&\2_H3s9  
25. A great number of studies report on the treatment of OI0#@_L&  
uncertainties associated with xx. Y+5nn  
26. There is considerable amount of literature on planning I^erMQn[ z  
27. However, these studies do not provide much attention to lnuf_;0  
uncertainty in xx. rMRM*`Q2  
28. Since then, the subject has been extensively explored and it is a+A^njk  
still under investigation as well in methodological aspects as in ,#&\1Vxf  
concrete applications. (IdXJvKU!  
29. Many research studies have been carried out on this topic. tPu0r],`o  
30. Problem of xx draws recently more and more attention of system ?+#|h;M8  
analysis. DM {r<?V  
31. Attempts to resolve this dilemma have resulted in the {A2EGUmF2  
development of U9k;)fK  
32. Many complex processes unfortunately, do not yield to this Q72}V9I9  
design procedure and have, therefore, not yet been automated. ~uqpF-.  
33. Most of the methods developed so far are deterministic and /or Z*&y8;vUQ  
probabilistic in nature. b=nQi. /f  
34. The central issue in all these studies is to GIXxOea1  
35. The problem of xx has been studied by other investigators, ?,G CR1|4  
however, these studies have been based upon classical statistical QTZf e<m0  
approaches. %`*`HU#X  
36. Applied ... techniques to P<<?7_ ??  
37. Characterized the ... system as Gk~QgD/Pix  
b(^gv  
38. Developed an algorithm to }dnO7K  
39. Developed a system called ... which B~S"1EE[  
40. Uses an iterative algorithm to deduce IQn|0$':Z  
41. Emphasized the need to Ns?qLSN  
42. Identifies six key issues surrounding high technology 9A|deETa-  
43. A comprehensive study of the... has been undertaken h#_KO-#.[  
44. Much work has been reported recently in these filed 7G,{BBB  
45. Proposed/Presented/State that/Described/Illustrated/ !~X[qT  
Indicated/Has shown / showed/Address/Highlights %V r vu5  
46. Point out that the problem of 6T3uv,2  
47. A study on ...was done / developed by [] -1\*}m%1e  
48. Previous work, such as [] and [], deal only with )=,%iL -  
49. The approach taken by [] is Kob i!  
50. The system developed by [] consists \}CQo0v  
51. A paper relevant to this research was published by [] ?&qa3y)wX:  
52. []'s model requires consideration of... um/2.Sn>  
53. []' model draws attention to evolution in human development BGk>:Z`  
54. []'s model focuses on... =m<; Jx5  
55. Little research has been conducted in applying ... to 9VqE:c /  
56. The published information that is relevant to this research... XwI~ 0  
57. This study further shows that 6??o(ziK$  
58. Their work is based on the principle of m8Wv46%  
59. More history of ... can be found in xx et al. [1979]. /g|H?F0  
60. Studies have been completed to established _e2=BE`W)  
61. The ...studies indicated that :0G_n\  
62. Though application of xx in the filed of xx has proliferated in $-HP5Kj(k-  
recent years, effort in analyzing xx, especially xx, is lacking. g43j-[j)  
Problem / Issue / Question 87QK&S\  
63. Unfortunately, real-world engineering problems such as HIK" Ce  
manufacturing planning do not fit well with this narrowly defined j`fQN  
model. They tend to span broad activities and require consideration s& INcjC  
of multiple aspects. MCPVql`+`q  
64. Remedy / solve / alleviate these problems ny(`An  
67. ... is a difficult problem, yet to be adequately resolved  [#+yL  
2 kP 0//  
68. Two major problems have yet to be addressed kTC'`xv  
69. An unanswered question *=sMJY9#jE  
70. This problem in essence involves using x to obtain a solution. 0 _!')+  
71. An additional research issue to be tackled is .... Ry$zF~[   
72. Some important issues in developing a ... system are discussed e(e_p#  
73. The three prime issues can be summarized: 2)iwAu   
74. The situation leads to the problem of how to determine the ... pKxsK^O5[  
75. There have been many attempts to n\-nBrVSf  
76. It is expected to be serious barrier to k-:wM`C  
77. It offers a simple solution in a limited domain for a complex u[{j;l(  
problem. q=EHB5!q  
1. There are several ways to get around this problem. $#ve^.VHv  
2. As difficult as it seems to be, xx is by no means new. |S0w>VH>  
3. The problem is to recognize xx from a design representation. O c[F  
4. A xx problem can trace its roots to xx. Z[ N O`!<  
5. xx [1987] used a heuristic approach to simplify the complexity of ~pZ<VH;h  
the problem. 6`c5\G+  
6. Several problems are associated with them. D]?eRO9'  
7. Although some progress has been made in this area, at least two +jEtu[ ;  
major obstacles must be overcome before a fully automated system {h}0"5  
can be realized.  46^9O 5J  
8. Most problems in practice are complicated `{Jo>L .  
9. More problem surface here. { R`"Nk  
10. Hamper effort toward a xx system @#j?Z7E|  
11. In order to overcome the limitations due to incomplete and ~6Xr^An/Z  
imprecise xx knowledge, a xx program has been developed, which (u{?aG~  
bases its knowledge upon the statistical analysis of a sample wHR# -g'  
population of xx rA\6y6dFs  
12. The above difficulties are real challenges faced by researchers {^T_m)|n  
attempting to develop FwjmC%iY  
13. This type of mapping raises no controversy to the issue of ; u@& [  
membership function determination. HM]mOmL90N  
14. However, attempts to quantify the xx have met both theoretical LmZ"_  
and empirical problems. W"v"mjYud  
sQXj?5!  
15. It has become apparent that in order to apply this new 3J_B uMV  
methodological framework to real-world problems and data, we have u)4eu,MBT  
to pay attention to the problems of xx and xx. Yo*.? Mq'  
Chapter 3. Proposed methodology =v{Vl5&>?  
Assumption (Zoopkxw  
1. In the case when the assumption of a xx seems to be too iF*L-   
restrictive or inadequate, the formulation with Fuzzy termination vACJE  
time, i.e. given by a fuzzy set in the space of control stages, may be "j/jhe6  
applied. c0v6*O)  
2. We assume here the fuzzy constraints to be state-dependent, and ZZ324UuATX  
the fuzzy goal to be the same for all the control states, xx, which H(gETRh  
stems from the problem's nature. IBz)3gj J  
3. An approach to the solution of this problem is presented under the ]S 3l' "  
assumption that the sampling rate Decision can be made prior to the z'9U.v'M)  
execution of the experiment, as opposed to being made while the <lgX=wx L  
experiment is in progress. (b8ZADI*  
4. Another assumption made above is that there are precise odds at )wNcz~ Y  
which the expert is indifferent. a7}O.NDf  
5. Main simplifying assumptions are: ~0Z.,p_  
6. This, in our view, is a questionable assumption. WRp0.  
Outline / Structure / Module WXQ+`OH7  
1. An outline of the research T h!;zu^t  
2. Information is incorporated within the scheme V~sfR^FQ'  
3. Is built into ... structure L./{^)  
4. A nice modular structure. r1BL?&X-  
5. The principles of ... are applied as modularized criteria "i,ZG$S#E  
Classification d*_rJE}B  
1. A xx system comprises three main components: V-9\@'g c  
2. Must decompose the original .. into a set of .. UaB2vuL*=  
3. Consists of the following steps: L:\>)6]Ls  
4. This is summarized in the following steps: E?FUr?-[  
FEdFGT  
5. Can be broadly classified into the following areas: [P`<y#J3F  
6. Can be characterized by its function of effectively processing the <+Gf!0i  
7. Can allow further breadth of application of ...into more E:y^= Y  
8. The following steps should be followed 89j*uT  
9. xx can be classified by a different ways. `<-/e%8  
10. Based on the xx, one may classify xx into the following: Gkm {b[  
11. This catalog may change due to wear, breakage, and purchasing. yN/g;bQ  
System XEBj=5sG  
1. Unlike many conventional program, expert systems do not TZhYgV  
usually deal with problem for which there is clearly a right or wrong (9{qT>eJg=  
answer. LIll@2[  
2. The system consists of both ... and ... nrR2U`  
3. The system has a hierarchical modular architecture organized on QjKh#sU&  
three levels. *M.,Yoj  
4. expert system domains are area of expertise "m`}J*s"  
5. To develop a xx system for xx, the following factors must be UrO& K]Z  
considered: NA$% Up  
6. The system has been developed / designed to determine ~])Q[/=p  
7. The system has proven to be able to M+I9k;N6&  
8. The domain in which an expert system operates is a particular JNo[<SZ b  
domain Z3U%Afl2{  
9. The system comprises a ... with 5uV_Pkb?8  
10. The system is [feature-oriented ] / based on the ... technique 0\Tp/Ph  
11. The system environment must be relatively stable  % s@  
12. The system is utilized to generate, load, store, update and 1je/l9L  
retrieve ... {|'NpV  
13. The development of a xx system has two stages: xx stage and xx ?*.:*A  
stage. @?RaU4e  
14. The most essential part of .. system is the ... +F.@n_}p-I  
15. The successful developments in ESs have made them an Sk-Q 4D^  
important tool in the development of U'u_'5 {  
16. An automated system was developed for m Dk6@Gd@U  
17. In this case, the system can be considered to be generative. >f4[OBc  
6&QOC9JW+7  
18. An interactive automatic ... system L c )i  
19. A …. is commonly thought of as a truly integrated .. system RI+Y+z  
20. Should be capable of being generated from a ... system *U}-Y*  
21. xx is an important part of the integrated system. 7rYBFSp  
22. The model consists of four rule bases, each of which addresses a ^nK7&]rK  
separate problem in the hierarchy of scheduling decision. ~0[(-4MA  
23. The rule bases are linked to each other in a chin-like manner in |!/+ T^u  
the sense that the consequent of one rule base constitutes a part of E;9J7Q 4  
the antecedent of the next rule base. X|&H2y|*7  
24. The rule base consists of all possible combinations of the `,]_r 4~ ~  
linguistic terms associated with the linguistic variable of the ^I yYck'y+  
antecedent of a rule. io(!z-$  
Computer System  ?!<Q8=  
1. The system has been implemented using Prolog language in an VFMn"bYOB  
MS-DOS environment. Prolog was chosen because it offers a well )Gk?x$pY@  
known and flexible environment in which fuzzy reasoning may be IuA4eDr^Y%  
easily implemented. ]*gf$D  
2. The current version of the xx program when compiled with ^Bo'87!.  
WATFOR77 results in an executable code of about 270K bytes. NFP h}D  
Typical run time, when run on a XX computer (an IBM compatible gK(G1  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min c##tP*(  
to 2h, depending on the size (or complexity) of the problem. gz~ug35  
3. Time consuming procedures have been implemented in +0j{$MPZ  
C-language and directly linked to the Prolog environment. 8aC=k@YE  
4. The xx process, once the xx's data has been entered, requires q`.=/O'  
approximately 180 seconds. )q.ZzijG/  
5. It should be noted that the computation was done with a 20 Hhz, Nr+~3:3  
80386..209;based microcomputer equipped with a 80387 math Q`NdsS2  
co-processor. O*bzp-6\  
6. The computer programs used for the analyses, one based on the xx XA(.O|V Z  
method and the other based on the new method, were written in )MLbE-@  
FORTRAN with a compiler that supports the math co-processor. z@o6[g/*Q  
7. Lisp, Prolog give maximum flexibility but also maximizes IW>~Y l?  
l'M/et{:  
development time. =tY%`e  
l Internal representation is the way a model is represented in the Nd_A8H,&B  
computer. n%G[Y^^ ,  
l An interactive menu-driven procedure is used in this study )db:jPkwd  
l Shell can be develop very fast at the cost of time fairly severe Q[aF"5h%  
limitations. _L` uC jA  
l While there is no measurable saving of time for the case involving Y0-?"R8  
five criteria, the saving is dramatic for the case involving 10 criteria ?'|GGtvm  
-- the computation time reduces from 10 hr 40 min to about 1 min. MK@rx6<9  
l This combination is being implemented in an objected-oriented L+T'TC:  
programming environment (Smalltalk-80 system) to solve problems jcvq:i{  
encountered in construction xxx. #Ef!X  
Method / Approach / Study / Process Model / Equation /Algorithm / isy[RAP<  
Rule / Formula / Technique .w _BA)  
l A discussion is presented of a problem-solving system .Ln98#ZR  
l To improve the efficiency of the method, the following approach c`hENPhW  
may be applied. PhV/WjCZ  
l In order to an investigation was made to find the causes of the L[<Y6u>m!1  
l Although large collections of rules and equations have been iPY)Ew`Im  
complied, none are generally accepted "PWGtM:L8Y  
l This approach will be explained and discussed thoroughly in the |,S]EHIy  
body of the report. J%B/(v`  
l This can be accomplished by ,)!%^ ~v  
l This algorithm to compute the total cost can be described step by ~`^kP.()  
step as follows: nT2b"wkTT  
l The above preliminary analysis has provided important ~Ym*QSD  
information kka{u[ruA  
l Various methods have been proposed for selecting an optimum... 0-aaLC~Z>  
l These concepts have been applied to fF>hca>  
l On the basis of the concept mentioned above, ]B8iQr-!  
l This can be achieved by X(17ESQ/Y  
l This fact suggests that a new concept 7J`v#  
l This was accomplished by taking ... ?/5<}W#7}  
#Tag"b`  
l The preparatory stage is very time consuming process. ZAeJTCCk  
l Test are performed for validity, completeness, and compatibility N+5f.c+S-  
l There is little hope of achieving successful ... N%q{CYF6  
l There has been an increasing awareness of the potential of using U HTxNK@}  
most ..so far made have not taken this approach, with the exception O'^AbO=,  
of /NR*<,c%  
l Only a few studies can be found. oa5L5Zr,A  
l It is a very tedious process to go through <;>k[P'  
l It is only when .. has been completed that .. may be effected  r3OtQ  
l The entire interpretation process is conducted in one's head. `WxGU  
l These approaches are sometimes very tedious. U UtS me  
l Several techniques can be used TV_a(#S   
l A polynomial parametric model can be written as [the Sx Bo%  
following]/[follows]: *Sbc 8Y  
l A xx model is constructed/formulated using xx. l ObY  
l A xx model represents an xx by its xx. CI \O)iB  
l A process decision model captures the logic essential to 'Cz]p~oF  
l From the equation above, xx is equal to the summation of xx tpeMq -  
times the ... )[&j&AI  
l The validity of a xx model can be checked using Euler's formula. j E5=e</  
l Given a model, one can mathematically determine whether ... or ... B%))HLo'  
l Equations for xx need to be derived and implemented in the ov\%*z2=  
system. Zw/??Tq b  
l A number of heuristic rules have been developed for &#~U1: 0  
l Optimum .. techniques can be made more reliable by ... so that %)^0NQv  
l An algorithm based on the characteristic ... is used to determine -W})<{End  
l Euler's formula states the following: 1.~^QH\p?3  
l The completed model should agree with the formula. 7-9HCP  
l For manufacturing purposes, a detailed and precise model of the mryT%zSlM  
object is necessary :N xksL ^  
l Engineering design models are very well defined; therefore, ,S, R6#3G  
l To keep the domain narrow enough to be implementable, yet wide )^E6VD&6  
enough to pf=CP%L  
be useful. w %6 L"  
IZ.b  
Point of View t +CU  
l from an implementation standpoint, x_4{MD^%  
l From the point of view of this application, +]VW[ $ W  
l From this point of view, Zadeh suggested an inference rule named ^c sOXP=Yp  
xxx (CRI for short). AIA4c"w.EO  
l Information is the meaningful interpretation and correlation of b3- +*5L  
some aggregation of data in order to allow one to make decisions. )f%Q7  
l From a practical point of view, the computational aspects of an xT+@0?|F  
FLC require a simplification of the fuzzy control algorithm. &v+Hl ^  
l The use of a hammer to insert screws, although partly effective, P$`k* v  
tends to distort, destroy, and generally defeat the purpose of using a .Na'yS `J  
screw [Kusiak AI Implications for CIM p.129] L7.LFWq$ S  
Justification o-]8)G>~M  
l We choose the so called xx in our experiment because it has >9Y0t^Fl  
received wide acceptance and can r9^~I  
l Prolog was chosen because it offers a well known and flexible HR?a93  
environment in which fuzzy reasoning may be easily implemented. CH=k=)() ]  
l The rationale behind this is that it can be much easier for an ery{>|k  
estimator to rate a cost as high than to attempt to place a dollar kmsgaB7?  
value on the estimate. sH)40QmO{  
l This strategy has been widely used in fuzzy control applications 4({Wipd  
since it is natural and easy to implement. _We4%  
l A function definition expresses the membership function of a |DoD.?v  
fuzzy set in a functional form, typically a bell-shaped function, etc. _,|N`BBqd  
Such functions are used in FLC because they lead themselves to YR68' Sft[  
manipulation through the use of fuzzy arithmetic. =xHzhh  
l It should be noted that in our daily life most of the information on 6b=7{nLF  
which our decisions are based is linguistic rather than numerical in K>`*JJ,  
nature. Seen in this perspective, fuzzy control rules provide a natural 0Y ld!L  
framework for the characterization of human behavior and decisions !X/O1PM|  
analysis. VaylbYUCT/  
l Many experts have found that fuzzy control rules provide a P;l D ri  
4ew#@  
convenient way to express their domain knowledge. This explains :.NCS`z_  
why most FLCs are based on the knowledge and experience which ?N!.:~~k  
are expressed in the language of fuzzy "if-the" rule. @RVj~J.A  
Chapter 4. Examples ,[ M^rv  
Example/ Data /hbdQm  
l The data used in the following example was taken from an ao)8ie  
experiment in which xx was measured between x and x using a xx 4>I;^LHn  
technique. G_n~1?  
l The data consists of over xx measurements. 6I$:mHEhd  
l An example of xx is discussed and the control rules of xx are Y^J/jA0\B  
compared with a xx E,:E u<  
l Examples of complex processes to which this technique may be @ Yzj  
applied are xx, xx, etc. )qV&sru.$  
l The following example is constructed only for the purpose of I=Xj;\b  
illustrating the computational procedure discussed. O_ /|Wx  
l This example clearly demonstrates that the profile of an individual w `r)B`!g  
xx, or a very small group of xx, with no enough data to be studied n!t][d/g+  
statistically, can be meaningfully analyzed by fuzzy possibilistic ,Taq~  
methods. ?513A>U  
l There is no space here to go into detail on all these methods, but G .k\N(l  
deserve a mention and the bibliography will point to detailed :\8&Th}Se  
references for those wishing this level of detail. W8{zV_TBm  
l Note that the golf ball spotting example is used throughout the 2w? 5vSv  
paper. 0] $5jW6]  
Comparisons :*{\oqFn~$  
l As well, the pros and cons of these representations from a process BY^5z<^.  
planning point of view will be discussed. i7(\i2_P  
l The method of using xx to implement xx described by Zadeh f'3sT(1&  
(1973) appeared more suitable v"a.%" oN8  
l As discussed [in the previous section]/[preciously], t.E3Fh!o  
Fq9>t/Zj  
Relation =3Hv  
l We can not invert F' directly because it defines a many-to-one GcYT<pwN6  
mapping. 6$^ dOJ_"  
l The relationships appear very complicate }8cX0mZ1j  
l Lifting tasks involve complex and imprecise relationship between SQd`xbIuL  
the task variables and the human operator's characteristics. HfgK0wIi  
l These methods are based on the relationship between ... and ... +B0G[k7  
l The fundamental concept of a fuzzy rating language is that we can {l-V  
establish a relationship among terms such as high, medium, and low, vz_ZXy9Z  
and then modify these relationships. ib%x&?||  
l This article will thus mention the latter as well as the former. Z*rA~`@K6  
l The former two bear a close relation to a fuzzy Cartesian product. -'OO6mU  
Importance )4P5i b  
l The emphasis is on an implementation of a general approach to axW4 cS ?  
rule based decision making. f{DcR"  
Consideration / Attention 8?7gyp!k_f  
l Careful evaluation is necessary to ensure sC .R.  
l Such a formulation does not change further considerations. hsUP5_  
l Considerable attention has been paid to > WW5A py[  
l Attention should be paid to an important finding of this <C'S#5,2  
investigation. rpNe8"sh  
l Caution should be exercised in this process to avoid ... G Riu]   
l Primary consideration is given to ... components, though others !r8Jo{(pb  
can be accommodated A<& :-Zz  
l After ... has been defined by ..., a carefully analysis is carried ?Ze3t5Ll  
out/performed to determine Nv iPrp>c  
l A number of factors such as ...need to be taken into consideration fV;&)7d&  
before making the appropriate decision. E5%ae (M^  
l It should be noted that Vo%UiVHy  
l It is important to point out that ... cg,_nG]i  
l These considerations have heightened interest in the possibility of S %"7`xl  
providing ... iK"j@1|  
a`w)awb  
l We should stress the fundamental importance of the xx 3\,TI`^C  
Chapter 5. Results. JHf}LZu  
Advantages / Disadvantage  5m+:GiI  
l One of the major advantages of this new measure of xx is that it Lh &L5p7  
can be applied to the experimental study of z^4\?R50yO  
l One advantage of using a .. is the ease of preparing it. Oh:SH|=]#  
l The xx system is versatile 'FBvAk6  
l It has a very fast decision making process LwUvM  
l All the algorithms involve mostly logical operations. zYOPE 6E  
l It can be easily and without additional cost implemented in a IBVP4&}x$  
microprocessor-based environment. e?G*q)l  
l It can reduce the waste of designing from scratch. T^GdN_qF  
l The advantages of using a xx to represent xx are the following: t:M({|m Y  
l However, xx is not without its shortcomings. #k=!>%+E  
l In most cases, the xxx shows an improvement over the existing "`:# sF9S  
xxx. ,XP9NHE  
l Compared to the existing xx, the impacts of the xx are generally $zCUQthL@  
reduced by 5% to 9%. Dz)bP{iq"  
l The "best case" results shows a savings of 6% to 9%. j7-#">Y L  
l Most of the existing works based on xx approach can only .: 7h=neEW  
recognize a xx . d(a6vEL4  
l Most of the above methods are computational expansive and .^kTb2$X  
limited to xx. GW $iK@  
l Some other advantages of xx are the following: dy`~%lX?  
l The problem is the limitation of this method to a limited domain of Q|G[9HBI  
parts. ?qK:P  
l It proved limited in application because it demanded precision in 0Xo zYyq  
system modeling that was impossible in practice. hV8A<VT  
l There are advantages to be gained in the structuring of costs and I3s}t$`y(  
benefits, the use of xx, K->p&6s  
l The disadvantages of this method are also disadvantages of 3 oWCQ  
conventional xx approaches. qbAoab53  
/|DQ_<*  
l This combines the best features of both techniques Ta[}k/zW  
l Hopefully, this tool can be as the reference framework of for rz.`$b  
developing a xx platform, and helping the administration, marketing, vOP[ND=T  
and knowledge management activities in virtual communities. :e9E#o  
Results xjX5PQu  
l An improvement on the result shown above can be made by based yWK[@;S]%  
on the data provided be@MQ}6>  
l Discussion of these theories is beyond the scope of this review {jq-dL  
l Based on the information contained in this ,,iQG' *  
l The result can be categorized into nine classes !9N%=6\  
l The results are illustrated by an example 1IsR}uLh  
l The experimental results for each xx time are reported in Table 2. 4v?S` w:6  
l From the results obtained so far, it seem that IWQ8e$N  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn Z3/zUtgs  
as R`<E3J\*  
l Although much effort has been made to., this reality is far from 7)]G"m{  
completion. bVrvb`0  
l The results indicate that the total benefits are higher than the  )Ob{]  
total costs. SVHtv 0Nx  
l Their results may then serve as guidelines for lower level models, #*`|}_6L  
less fuzzy and more detailed. r#j*vO '  
Chapter 6. Conclusion u J$"2<O  
l From the discussion, one may conclude that ... {%$=^XO  
l Form the above discussion, the conclusion can be reached that R3<+z  
l The conclusions drawn are also valid  5-J-Tn  
l In conclusion to this, it becomes obvious that the problem of xx ,s)H%  
lies not only in... cZ(XY}  
l We have attempted to introduce some concepts associated with a c2U>89LlZ  
theory of ubQ(O uM"  
xx based on fuzzy sets. %|I|Mc  
l Considerable more work, hopefully, will be done in this area 4>W`XH  
l A fuzzy set procedure is proposed to solve xx selection problems GB=q}@&8p  
Q&J,"Vxw  
interwoven with imprecise data g[$B9 0  
l Employing the compositional rule of inference, the assessment of gM*s/,;O"  
the xx compatibility in achieving prescribed xx projectiles in any ,y>Na{@Y  
level of the hierarchy is made possible. xI@~Ig  
l This paper has presented a theoretical and experimental study of r~TT c)2  
the xx process and xx concept. gr;M  
l The experimental research results will hopefully serve as useful >g[W@FhT'k  
feedback information for improvements for xx work. ^ WNJQg'  
l The scope of this contribution was to introduce a xx method. |}`5< a!6U  
l In general, fuzzy sets theory provides an alternative foundation I%p#E#[G  
for xx analysis in a fuzzy environment. T)uw2  
Future Research 1@WGbORc*  
l Thus, first extension of the approach could be, pR"qPSv'  
l Present some cues for a further approach from Fuzzy Sets Theory {OOt+U!  
application to  q0~_D8e,  
l Some improvements to the scheduling aspect of the model may kslN_\   
be brought through additional levels in the hierarchy for more a3;.{6el)H  
detailed representation of the scheduling activity. @>Keu\)  
Tables and Figures }]I?vyQ#V  
l Figure 7-1 sketches these relationships. K288&D|1WU  
l The graphical representation of these functions is shown in Figure K>[H@|k\k  
1. q}5A^QX  
l The xx may be depicted as in Figure 1. mw[4<vfB0a  
l Figure x shows the schematic diagram of the { Fi@|'  
l Figure 1 though 2 provide a ... that Nj0)/)<r+  
l the architecture of this expert system for .... is illustrated in Figure U3}R^W~eb  
2. %'e(3;YI  
l Figure 2 gives the outline of an ... system  qR qy  
l Table shows the `dP+5u!  
l as shown in Table 1 and 2 sh ;uKzQ  
l This concept is illustrated in Figure 2 W[Bu&?h$  
l At the top of Table xx are shown two blocks of data. iIE(zw)H  
k`TJ<Dv;  
l Each table or matrix has constructs xx through xx as KIo }Gd&  
row-headings, :eW~nI.Vc  
xx through xx as column-headings. QIK73^  
l A table of .. is developed and significant recommendations are sg{D ?zl  
made. AiZFvn[n8  
CONJUGATION Net)l@IB]  
To Indicate Addition s.`d<(X?  
l additionally, again, also, and then, as can be easily understood, Eap/7U1Q  
besides, equally important, especially, finally, for the same reason, fm%R NAPvc  
first, further, furthermore, in addition, last, likewise, moreover, next, abeSkWUL(  
second, third, too, evidently, obviously, roughly speaking, broadly d&uTiH?0  
speaking WuFwt\U  
To Indicate Cause and Effect PuCDsojclh  
l accordingly, as a result, consequently, for this reason, hence, in o^Ysp&#p  
short, otherwise, then, therefore, thus, truly hG7S]\N_  
To indicate Comparison HhmVV"g  
l in a like manner, likewise, similarly , alternatively `t0f L\T  
To Indicate Concession _i[)$EgFm  
l after all, although this may be true, at the same time, even though, iN_D8dI  
even so , I admit, naturally, of course _1<'"u#6w  
To Indicate Contrast {Y91vXTz7  
l and yet, at the same time, but, for all that, however, yet, in fact, in oL'1Gm@X?  
contrast, in the real life, in spite of, nevertheless, notwithstanding, l(,;wAH  
normally, on the contrary, on the other hand, still, traditionally, 12sD|j  
rather, unfortunately, VtO;UN  
To Indicate Time Relationships: X@qk>/  
after a short time, afterwards, as indicated earlier, as long as, as soon rEyz|k:  
\c~{o+UD-  
as, at last, at length, at the moment, at that time, at the same time, ouVjZF@kS  
before, earlier, currently, immediately, in the meantime, in recent F|?'9s*;6G  
years, lately, later, meanwhile, often, of late, presently, recently, $tCcjBK\  
soon, shortly, since, thereupon, temporarily, therefore, until, when, s` =/fvf.  
while x}&a{;  
To Indicate Special Features or Examples: 6f?BltFaN  
for example, for instance, incidentally, indeed, in fact, in other words, "f|(@a  
in particular, in practice, specifically, that is, to illustrate, in this P$18Xno{  
respect, theoretically, as mentioned before / above ^'&iYV  
To Indicate Summary: /*AJr  
in brief, in conclusion, in short, in summary, on the whole, to 5BHOHw D{  
conclude 3X$Q,  
, in general, to summarize, to sum up, as a result, ultimately, 8j ggc#.  
VERB PHASE 1a&/Zlr  
l build a .. model K)/!&{7n}a  
l build up the key link kqD*TJA  
l began a new era in ... [O7w =  
l can be regarded as / achieved / used to/for / found / obtained 1xO!w+J#  
through ;h9-}F  
l can result in )C>}"#J>  
l carries out ... tasks mA(nyF  
l production information in order to simultaneously mPs%ZC  
l contains all information necessary to describe 4[TS4p  
l do not make use of production information 7`IUMYl#~  
l deals with ZT) !8  
l end with failure _BG8/"h32  
l fetch the information from the model directly g.I(WJX0  
l has great potential / yet to be resolved / spurred the =[]x\&@t  
development of / EI1W .V>@  
been recognized as e9CP802#2  
l BE aimed at / built up / carried out by / essentially concerned 0A#*4ap  
n1QEu"~Zj  
with / considered to be the key technology / associated with each @B,j;2eb  
feature of a compo t=n+3`g  
site component / cable of / currently implemented for / `"a? a5]k  
demonstrated by an example / finally reached / made equal to / Mv.Ciyc  
equivalent to / more suitable to / oriented to / interpreted as / P<%v +O  
pointed out / potentially of great benefit in the complex task of / \U/v;Ijf  
shown in / used to effectively guide the search ,~(|p`  
l makes use of +J|+es  
l make up pw@`}cM=  
l meets the needs of real life production,/ the current demands gU l1 CH&  
placed upon it gaQ[3g  
l must be justified 60"5 ?=D  
l point out hZcmP"wgC1  
l play an important role zhNQuK,L  
l relates to 4~!Eje!  
l rely on c$9sF@K?  
l satisfy the needs & =G)NeT_  
l determine the total requirements for the ... jDR')ascn  
l uses ... as a key to search for... Q4RpK(N  
l without relying on BU`ckK\(  
l will be available/ performed/ overlooked xcst<=  
NOUN PHASE * -0>3  
l a basic technical function of 4R x~s7l  
l a critical need Uo~T'mA"  
l a key / principle feature of u t$c)_  
l a substantial impact on tZbFvk2  
l an intensive review was conducted RT,:hH  
l an increasing need for expanding the application of .... ?=<~^Lk  
l an important component / function / aspect / issue (~JwLe@a  
l each rule is numbered in sequence O$^xkv5.  
l each of these involves 3A_G=WaED  
l for this calculation, it is necessary to define C0QM#"[  
l in the physical environment / integration of Hfh!l2P  
@o6R[5(  
l in the reality of situations where … 28a$NP\KW  
l many aspects of t8P PE  
l most past efforts have been spent on ... =>qTNh*'  
l common sense to a well studied and documented technical field. 7tRi"\[5  
l sources of additional information on ... are listed HJIC<U  
l systematic and rationally structured format nBkh:5E5%  
l the basis on which a range of ...operations can be established is \9`#]#1bx5  
shown Br!9x {q*  
l THE basic philosophy / principles of / key element / general lNz ]H iD  
hypothesis / candidate list of / concept of ... has attracted wide RbEKP(uw  
interest / function is concerned with / heart / impact / nature / role <.bRf  
/ task of / kernel functions &l m#  
l the number of parts needed to "u492^  
l the above statement means that V%*b@zv  
l the output data is passed to ]A^4}CK^<  
l the proposed method / underlying principle ?IF)+]  
l the recommendations made in this report, if implemented, should v7,$7@$:\  
l this information resides in aJzLrX  
l this process is composed of ... different ... operation .UQE{.?  
l along with the use of UE.4q Y_7  
l concerning general aspects of TB!(('  
l due to @1:0h9%  
l for later use in generating..., ok{!+VCB5  
l in turn, b?T  
l IT IS believed / noted / assumed / suggested / shown / quite >/=> B7  
evident / appears / implies that / intended for / of no important to =5x&8i  
l it can be claimed/concluded that %JyXbv3m,  
l it demonstrates the decisions required of 2oCkG~j  
l it also provides information to .. ypdT&5Mqb!  
l it becomes essential to JSr$-C fH  
l let ... be the probability that S1S;F9F  
l once... is written, it is compiled into... Vsnuy8~k  
l suppose it is observed that t0)<$At6J  
l this is because }4//@J?:  
i+{yMol1  
l this results in a aZ|=(]  
l upon completion of the ... analysis, = ieag7!  
l when the knowledge is of mathematics or quantum physics, it will =] C]=  
also be $O)3 q $|  
recorded in books and papers iyta;dw9  
l selection of rules for using the tools, for generating operation De&6 9  
plans, !\Xm!I8  
is another matter of preference, since practice varies greatly. 6CbxuzYer  
l for the sake of convenience 4m)OR  
l correct decision to be reach ~m^ #FJu  
l keeping the number of rules to a minimum. Uyx!E4pl(  
l a good process plan will result exhibiting several characteristics: XolZonJr  
l practical solutions *3/T;x.  
l because of rather small job lot sizes 6 GP p>X  
l Backward reasoning can be used to answer the question "should YH&bD16c3  
milling tool be select" different level of knowledge in the realm of 6(d}W2GP  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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