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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 d! _8+~  
E/>kvs%  
V?jot<|$  
Beginning |W|RX3D  
1. In this paper, we focus on the need for [R/'hH5  
2. This paper proceeds as follow. !q^2| %  
3. The structure of the paper is as follows. /@LUD=  
4. In this paper, we shall first briefly introduce fuzzy sets and related X@:@1+U  
concepts *1U"uJno  
5. To begin with we will provide a brief background on the K|rG&#1J  
Introduction -Vjrh/@  
1. This will be followed by a description of the fuzzy nature of the y,$zSPJCi  
problem and a detailed presentation of how the required A_|X54}w&  
membership functions are defined. \U HI%1^  
2. Details on xx and xx are discussed in later sections. -JXCO <~k  
3. In the next section, after a statement of the basic problem, various 7JLjA\k  
situations involving possibility knowledge are investigated: first, an b./MV z  
entirely possibility model is proposed; then the cases of a fuzzy KU87WpjX  
service time with stochastic arrivals and non-fuzzy service rule is 7)l+h Z  
studied; lastly, fuzzy service rule are considered. =XZd _v  
Review A04E <nr  
1. This review is followed by an introduction. 5_Oxl6#  
2. A brief summary of some of the relevant concepts in xxx and xxx is >8w=Vlp  
presented in Section 2. 9S<at MB  
3. In the next section, a brief review of the .... is given. VNxhv!w  
4. In the next section, a short review of ... is given with special regard 4+B OS ~  
to ... @-aMj  
5. Section 2 reviews relevant research related to xx. HD8*>p.  
6. Section 1.1 briefly surveys the motivation for a methodology of ~x g#6%<=  
action, while 1.2 looks at the difficulties posed by the complexity of <P pW.1w  
systems and outlines the need for development of possibility aQL$?,  
methods. M1e79p<  
Body -zH` 9>J5|  
1. Section 1 defines the notion of robustness, and argues for its  sf'+;  
oNIt<T  
importance. i-`J+8|d  
2. Section 1 devoted to the basic aspects of the FLC decision-making V})b.\"F  
logic. +y9WJ   
3. Section 2 gives the background of the problem which includes xxx 9wpV} .(  
4. Section 2 discusses some problems with and approaches to, 5HW'nhE  
natural language understanding. U6LENY+Ja  
5. Section 2 explains how flexibility which often ... can be expressed "D7wtpJ  
in terms of fuzzy time-window #A9rI;"XI  
6. Section 3 discusses the aspects of fuzzy set theory that are used in L IRdWGQ 4  
the ... iJ!p9E*(  
7. Section 3 describes the system itself in a general way, including 9<-7AN}Z  
the ….. and also discusses how to evaluate system performance. +`'>   
8. Section 3 describes a new measure of xx. oS#PBql4  
9. Section 3 demonstrates the use of fuzzy possibility theory in the !6l}s$1i|  
analysis of xx. V D.T=(  
10. Section 3 is a fine description of fuzzy formulation of human &W$s-qf".  
decision. GVUZn/ /  
11. Section 3 is developed to the modeling and processing of fuzzy J6RzN'j  
decision rules 3D2i32Y@!  
12. The main idea of the FLC is described in Section 3 while Section 4 YzeNr*  
describes the xx strategies. tu5T^"B qO  
13. Section 3 and 4 show experimental studies for verifying the Ula h!s  
proposed model. ISi^BFU  
14. Section 4 discusses a previous fuzzy set-based approach to cost 0artR ~*}  
variance investigation. .1A/hAdU  
15. Section 4 gives a specific example of xxx. sz+%4T  
16. Section 4 is the experimental study to make a fuzzy model of GtpBd40"  
memory process. BL1d= %2 R  
17. Section 4 contains a discussion of the implication of the results of Fb\ E39  
Section 2 and 3. Vi'zSR28Z  
18. Section 4 applies this fuzzy measure to the analysis of xx and %ZM"c  
illustrate its use on experimental data. _o'a|=Osx>  
19. Section 5 presents the primary results of the paper: a fuzzy set .njk^,N  
model .. NY"+Qw@$  
xzz0uk5  
20. Section 5 contains some conclusions plus some ideas for further eNu]K,rT  
work. ^"] ]rZ)  
21. Section 6 illustrates the model with an example. Ox9M![fC  
22. Various ways of justification and the reasons for their choice are 8'#L+$O &N  
discussed very briefly in Section 2.  EHk$,bM  
23. In Section 2 are presented the block diagram expression of a n.OsmCRN;  
whole model dQ=L<{(  
of human DM system o^v]d7I8b  
24. In Section 2 we shall list a collection of basic assumptions which @K1'Q!S *  
a ... scheme must satisfy. 6 l7iX]  
25. In Section 2 of this paper, we present representation and _0"s6D$  
uniqueness theorems for the fundamental measurement of fuzziness =d#(n M*  
when the domain of discourse is order-dense. ^X ~S}MX  
26. In Section 3, we describe the preliminary results of an empirical cy0j>-z  
study jx14/E+^  
currently in progress to verify the measurement model and to {'sp8:$a  
construct membership functions. <FfmDR  
27. In Section 5 is analyzed the inference process through the two ) 3.=)?XW  
kinds of inference experiments... _o? I=UN2:  
This Section Pye/o  
1. In this section, the characteristics and environment under which QXEz  
MRP is designed are described. HT7I ~]W  
2. We will provide in this section basic terminologies and notations uc aa;zj  
which are necessary for the understanding of subsequent results. X3'd~!a)  
Next Section Q7-'5s   
2. The next section describes the mathematics that goes into the l~mj>$  
computer implementation of such fuzzy logic statements. `6<Qb=  
3. However, it is cumbersome for this purpose and in practical <l5s[  
applications the formulae were rearranged and simplified as o_a'<7\#i  
discussed in the next section. RQU-]qQ8BM  
4. The three components will be described in the next two section, C5Mpm)-%  
and an example of xx analysis of a computer information system will l ;S_J^S  
.EZ8yJj1Q  
then illustrate their use. Z-3("%_$/  
5. We can interpret the results of Experiments I and II as in the a]!u go}  
following sections. 08/Tk+  
6. The next section summarizes the method in a from that is useful poy_?7G  
for arguments based on xx pnUL+UYeM  
Summary .Hg{$SAC(w  
1. This paper concludes with a discussion of future research @(IA:6GN  
consideration in section 5. GJ:oUi  
2. Section 5 summarizes the results of this investigation. MAQ-'s@  
3. Section 5 gives the conclusions and future directions of research. KQ0f2?  
4. Section 7 provides a summary and a discussion of some extensions pm2]  
of the paper. B<ZCuVWH:  
5. Finally, conclusions and future work are summarized qp{~OW3  
6. The basic questions posed above are then discussed and \H 5t-w=  
conclusions are drawn. JsEnhE}]  
7. Section 7 is the conclusion of the paper. 4#W*f3d[@:  
Chapter 0. Abstract <pM6fI6BD  
1. A basic problem in the design of xx is presented by the choice of a (:R5"|]@<x  
xx rate for the measurement of experimental variables. u Yc}eMb  
2. This paper examines a new measure of xx in xx based on fuzzy ^!$=(jh.  
mathematics which overcomes the difficulties found in other xx G?!8T91;  
measures. z\YLO%Mm  
3. This paper describes a system for the analysis of the xx. op3a*KG  
4. The method involves the construction of xx from fuzzy relations. Kd\d>&b  
5. The procedure is useful in analyzing how groups reach a decision. }GHC u  
6. The technique used is to employ a newly developed and versatile b5? kgY  
xx algorithm. _|{Z850AS  
7. The usefulness of xx is also considered. zjSHa'9*  
8. A brief methodology used in xx is discussed. v^ v \6uEP  
9. The analysis is useful in xx and xx problem. `aA)n;{/2u  
10. A model is developed for a xx analysis using fuzzy matrices. |io)?`pj  
11. Algorithms to combine these estimates and produce a xx are S+* >""=  
yqR]9 "a  
presented and justified. uo(LZUjPbN  
12. The use of the method is discussed and an example is given. ]@~%i=. 7  
13. Results of an experimental applications of this xx analysis "p+JME(  
procedure are given to illustrate the proposed technique. )`6OSB  
14. This paper analyses problems in dp4vybJ  
15. This paper outlines the functions carried out by ... 8L]Cc!~  
16. This paper includes an illustration of the ... Sggl*V/q  
17. This paper provides an overview and information useful for r]]:/pw?t  
approaching Mb45UG#2  
18. Emphasis is placed on the construction of a criterion function by B>sQcZ:  
which the xx in achieving a hierarchical system of objectives are KTwP.!<v  
evaluated. DyA1zwp}  
19. The main emphasis is placed on the problem of xx \tY7Ga%c  
20. Our proposed model is verified through experimental study. ?b93! Q1  
21. The experimental results reveal interesting examples of fuzzy b *3h}n;  
phases of: xx, xx `$FB[Z} &  
22. The compatibility of a project in terms of cost, and xx are likewise =NSunW!  
represented by linguistic variables. :_`Yrx5  
23. A didactic example is included to illustrate the computational +q+JOS]L  
procedure ooP{Q r  
Chapter 1. Introduction P% 8U  
Time |;^$IZSsz  
1. Over the course of the past 30 years, .. has emerged form intuitive lHHx D  
2. Technological revolutions have recently hit the industrial world Kaaz,C.$^  
3. The advent of ... systems for has had a significant impact on the M 9NT%7Il  
4. The development of ... is explored y,@yaM}-/K  
5. During the past decade, the theory of fuzzy sets has developed in a h cu\c+ A  
variety of directions 73_-7'^mQ  
6.The concept of xx was investigated quite intensively in recent years ed`7GZB  
7. There has been a turning point in ... methodology in accordance )@!T_#  
with the advent of ... *)oBE{6D  
8. A major concern in ... today is to continue to improve... 3Jq GLR`z3  
9. A xx is a latecomer in the part representation arena. zAev@+.ld  
= C/F26=|  
10. At the time of this writing, there is still no standard way of xx |cC&,8O:{  
11. Although a lot of effort is being spent on improving these K@:Ab'(P^|  
weaknesses, the efficient and effective method has yet to be @\>7 wt_'  
developed. 3df5 e0  
12. The pioneer work can be traced to xx [1965]. |`fuu2W!  
13. To date, none of the methods developed is perfect and all are far ;Cjj_9e,:  
from ready to be used in commercial systems. y(E<MRd8V  
Objective / Goal / Purpose q-,`\ TS  
1. The purpose of the inference engine can be outlined as follows: H ]!P[?  
2. The ultimate goal of the xx system is to allow the non-experts to -.L )\  
utilize the existing knowledge in the area of manual handling of loads, a4Z e!l(  
and to provide intelligent, computer-aided instruction for xxx. @hrIu" '!  
3. The paper concerns the development of a xx D G&aFmC  
4. The scope of this research lies in ,p!IFS`  
5. The main theme of the paper is the application of rule-based L:Mjd47L  
decision making. &5[+p{2  
6. These objectives are to be met with such thoroughness and pRUQMPn (  
confidence as to permit ... SwaPRAF  
7. The objectives of the ... operations study are as follows: yL -}E  
8. The primary purpose/consideration/objective of V ZtFgN$J  
9. The ultimate goal of this concept is to provide ;>F1?5P{  
10. The main objective of such a ... system is to yJ6g{#X4K<  
11. The aim of this paper is to provide methods to construct such LB9W.cA   
probability distribution. `0MQL@B  
12. In order to achieve these objectives, an xx must meet the _A0X[}^K  
following requirements: %%)y4>I  
13. In order to take advantage of their similarity j *;.>akY7  
14. more research is still required before final goal of ... can be TmM~uc7mj  
completed Z%=A[` 5]  
15. In this trial, the objective is to generate... 4gUx#_AaG  
16. for the sake of concentrating on ... research issues !4 lN[  
17. A major goal of this report is to extend the utilization of a recently &] xtx>qg<  
developed procedure for the xx. !,]c}Y{i  
wb h=v;  
18. For an illustrative purpose, four well-known OR problems are 9\=SG"e(  
studied in presence of fuzzy data: xx. G%= gCR  
19. A major thrust of the paper is to discuss approaches and 9wO2`e )  
strategies for structuring ..methods  C ?'s  
20. This illustration points out the need to specify F~bDg tN3  
21. The ultimate goal is both descriptive and prescriptive. 3 f~znO  
22. Chapter 2. Literature Review <U\8&Uv>  
23. A wealth of information is to be found in the statistics literature, 7VWy1  
for example, regarding xx !@ y/{~Gu  
24. A considerable amount of research has been done .. during the F2EX7Crj  
last decade >J)4e~9EJ2  
25. A great number of studies report on the treatment of jpTk@  
uncertainties associated with xx. !- 5z 1b)  
26. There is considerable amount of literature on planning G|"m-.9F  
27. However, these studies do not provide much attention to 5@I/+D  
uncertainty in xx. a0Fq$  
28. Since then, the subject has been extensively explored and it is ,q{~lf -  
still under investigation as well in methodological aspects as in -dfs8[i  
concrete applications. FP*kA_z$  
29. Many research studies have been carried out on this topic. LB}J7yEQvj  
30. Problem of xx draws recently more and more attention of system !T8sWMY  
analysis. crSqbL  
31. Attempts to resolve this dilemma have resulted in the yx;K &>  
development of _Vt(Eg_\  
32. Many complex processes unfortunately, do not yield to this /g!Xe]S s  
design procedure and have, therefore, not yet been automated. NVB#=!S  
33. Most of the methods developed so far are deterministic and /or ;W FiMM\  
probabilistic in nature. k72NXagh  
34. The central issue in all these studies is to y|3("&)"S  
35. The problem of xx has been studied by other investigators, pEX Q  
however, these studies have been based upon classical statistical v#:?:<  
approaches. 6BEDk!  
36. Applied ... techniques to k5+ Fxf  
37. Characterized the ... system as 2:e7'}\D.  
U9awN&1([  
38. Developed an algorithm to Dqd2e&a\  
39. Developed a system called ... which "s(|pQh;  
40. Uses an iterative algorithm to deduce 6KD-nr{S  
41. Emphasized the need to ZW@cw}  
42. Identifies six key issues surrounding high technology CLJn+Y2  
43. A comprehensive study of the... has been undertaken @uG/2'B(  
44. Much work has been reported recently in these filed IH5^M74b  
45. Proposed/Presented/State that/Described/Illustrated/ roe_H>  
Indicated/Has shown / showed/Address/Highlights &h=f  
46. Point out that the problem of W2M[w_~QE  
47. A study on ...was done / developed by [] j_0l'Saj  
48. Previous work, such as [] and [], deal only with N$.ls48a4-  
49. The approach taken by [] is M8y|Lm}o  
50. The system developed by [] consists G9K& }_,  
51. A paper relevant to this research was published by [] ")nKFs5  
52. []'s model requires consideration of... -_]Ceq/  
53. []' model draws attention to evolution in human development QXEZ?gx  
54. []'s model focuses on... yC4%z) t&R  
55. Little research has been conducted in applying ... to ~*Y/#kPY  
56. The published information that is relevant to this research... \{ C ~B;=  
57. This study further shows that :R$v7{1  
58. Their work is based on the principle of (#>Q#Izr  
59. More history of ... can be found in xx et al. [1979]. .f!:@fX>=  
60. Studies have been completed to established #]^M/y h  
61. The ...studies indicated that [[]NnWJ  
62. Though application of xx in the filed of xx has proliferated in I7t}$ S6  
recent years, effort in analyzing xx, especially xx, is lacking. o_ [I#PT  
Problem / Issue / Question NL!xk cXO  
63. Unfortunately, real-world engineering problems such as vB5mOXGNq  
manufacturing planning do not fit well with this narrowly defined JxM32?Rm*w  
model. They tend to span broad activities and require consideration )5o6*(Y  
of multiple aspects. 'kg~#cf/+  
64. Remedy / solve / alleviate these problems oDG BC  
67. ... is a difficult problem, yet to be adequately resolved !9j6l 0  
]2|KG3t  
68. Two major problems have yet to be addressed -; i:bE  
69. An unanswered question {`Mb),G  
70. This problem in essence involves using x to obtain a solution. vH E:TQo4  
71. An additional research issue to be tackled is .... eq9qE^[Z&  
72. Some important issues in developing a ... system are discussed 6QPT  
73. The three prime issues can be summarized: jDj=a->e^  
74. The situation leads to the problem of how to determine the ... \ Z~ <jv  
75. There have been many attempts to X6?Gxf,  
76. It is expected to be serious barrier to 9R&.$5[W(s  
77. It offers a simple solution in a limited domain for a complex PX?^v8wlqL  
problem. A!$sO p  
1. There are several ways to get around this problem. = H}}dC<)  
2. As difficult as it seems to be, xx is by no means new. Jr>Nc}!U  
3. The problem is to recognize xx from a design representation. f uH3C~u7<  
4. A xx problem can trace its roots to xx. ye| 2gH  
5. xx [1987] used a heuristic approach to simplify the complexity of ZMK1V)ohn  
the problem.  PK_2  
6. Several problems are associated with them. Z_T~2t  
7. Although some progress has been made in this area, at least two a3He-76  
major obstacles must be overcome before a fully automated system :/}=s5aQl/  
can be realized. V:gXP1P  
8. Most problems in practice are complicated F-Ku0z]){?  
9. More problem surface here. Imo?)dYK  
10. Hamper effort toward a xx system pT; xoe   
11. In order to overcome the limitations due to incomplete and Ti#x62X{  
imprecise xx knowledge, a xx program has been developed, which .e5rKkkT  
bases its knowledge upon the statistical analysis of a sample MLmv+  
population of xx of`WP  
12. The above difficulties are real challenges faced by researchers fs#9*<]m  
attempting to develop "m}N hoD4  
13. This type of mapping raises no controversy to the issue of 7TZ,bD_  
membership function determination. +# @2,  
14. However, attempts to quantify the xx have met both theoretical xp"F)6  
and empirical problems. (~ :ip)v  
t0 T#Xb  
15. It has become apparent that in order to apply this new `O?j -zR  
methodological framework to real-world problems and data, we have asbFNJG{  
to pay attention to the problems of xx and xx. qqu ]r  
Chapter 3. Proposed methodology &tlU.Whk+  
Assumption <!?ZH"F0  
1. In the case when the assumption of a xx seems to be too _^F%$K6  
restrictive or inadequate, the formulation with Fuzzy termination nA+gqY6 6|  
time, i.e. given by a fuzzy set in the space of control stages, may be _P=L| U#C  
applied. 7t6TB*H  
2. We assume here the fuzzy constraints to be state-dependent, and s09&A]G  
the fuzzy goal to be the same for all the control states, xx, which x0q `Uc  
stems from the problem's nature. ^O3p:X4u  
3. An approach to the solution of this problem is presented under the HU-#xK  
assumption that the sampling rate Decision can be made prior to the c+UZ UgP  
execution of the experiment, as opposed to being made while the RM!VAFH   
experiment is in progress. F\+!\b*lP  
4. Another assumption made above is that there are precise odds at +`.,6TNVlY  
which the expert is indifferent. d-#yN:}0  
5. Main simplifying assumptions are: ],f%: ?%50  
6. This, in our view, is a questionable assumption. 3O?[Yhk`.  
Outline / Structure / Module <+ckE 2j  
1. An outline of the research )`<7qT_BM  
2. Information is incorporated within the scheme bm(.(0MI  
3. Is built into ... structure >]?!9@#IH  
4. A nice modular structure. oBWa\N  
5. The principles of ... are applied as modularized criteria JE[J}-2  
Classification Y9nyKL  
1. A xx system comprises three main components: >F;yfv;  
2. Must decompose the original .. into a set of .. ~P+;_  
3. Consists of the following steps: /m+.5Qz9)@  
4. This is summarized in the following steps: E <h9o>h  
.&n;S' ;"  
5. Can be broadly classified into the following areas: r-c1_ [Q#  
6. Can be characterized by its function of effectively processing the Zex`n:Wl?j  
7. Can allow further breadth of application of ...into more >2LlBLQ  
8. The following steps should be followed 3 >G"&T{  
9. xx can be classified by a different ways. e&F=w`F\  
10. Based on the xx, one may classify xx into the following: lA ZBlO  
11. This catalog may change due to wear, breakage, and purchasing. )|L#i2?:  
System 604^~6   
1. Unlike many conventional program, expert systems do not vN`JP`IBx  
usually deal with problem for which there is clearly a right or wrong cmbl"Pqy1  
answer. #:} mi;{  
2. The system consists of both ... and ... WlnS.P\+E  
3. The system has a hierarchical modular architecture organized on D? FWSv  
three levels. EL1*@  
4. expert system domains are area of expertise f5hf<R),A  
5. To develop a xx system for xx, the following factors must be 8jU6N*p/  
considered: +cx(Q(HD\  
6. The system has been developed / designed to determine 8jfEvwY  
7. The system has proven to be able to H.[t&VO  
8. The domain in which an expert system operates is a particular 3+ WostOx  
domain $h8,QP y  
9. The system comprises a ... with *aS[^iX?s  
10. The system is [feature-oriented ] / based on the ... technique K.::P84m;  
11. The system environment must be relatively stable %2EHYBQjN  
12. The system is utilized to generate, load, store, update and !vH={40]  
retrieve ... BZAF;j  
13. The development of a xx system has two stages: xx stage and xx n3 JSEu;J  
stage. 7xjihl3  
14. The most essential part of .. system is the ... TWT h!  
15. The successful developments in ESs have made them an Th J`-Ro  
important tool in the development of k|[86<&[  
16. An automated system was developed for 8Xk,Nbcqt  
17. In this case, the system can be considered to be generative. jK-usn  
<%EjrjdvL+  
18. An interactive automatic ... system L<H6AzR+  
19. A …. is commonly thought of as a truly integrated .. system p )w{}@%r  
20. Should be capable of being generated from a ... system c-bTf$6}  
21. xx is an important part of the integrated system. :`20i*  
22. The model consists of four rule bases, each of which addresses a XZ[3v9?&n  
separate problem in the hierarchy of scheduling decision. 9Ts r g  
23. The rule bases are linked to each other in a chin-like manner in K:8. Dvn  
the sense that the consequent of one rule base constitutes a part of uT 2w2A;  
the antecedent of the next rule base. OIdoe0JR:O  
24. The rule base consists of all possible combinations of the NJ$c0CNy  
linguistic terms associated with the linguistic variable of the tboc7Hor4  
antecedent of a rule. f`"@7-N  
Computer System  $qyST  
1. The system has been implemented using Prolog language in an +a}>cAj*  
MS-DOS environment. Prolog was chosen because it offers a well k#pNk7;MZ  
known and flexible environment in which fuzzy reasoning may be xr).ZswQ  
easily implemented. h$rk]UM/Q  
2. The current version of the xx program when compiled with mZ}C)&,m2  
WATFOR77 results in an executable code of about 270K bytes. +DA ,|~k_  
Typical run time, when run on a XX computer (an IBM compatible muKCCWy#  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min Xwt}WSdF`k  
to 2h, depending on the size (or complexity) of the problem. Q2nqA1sRk  
3. Time consuming procedures have been implemented in 2r>I,TNHl  
C-language and directly linked to the Prolog environment. 31=v US  
4. The xx process, once the xx's data has been entered, requires BhCOT+i;c  
approximately 180 seconds. 2L|)uCb  
5. It should be noted that the computation was done with a 20 Hhz, 5;Q9Z1 `  
80386..209;based microcomputer equipped with a 80387 math %:/?eZ  
co-processor. (H-}z`sy/@  
6. The computer programs used for the analyses, one based on the xx w-?|6I}T  
method and the other based on the new method, were written in iK3gw<g  
FORTRAN with a compiler that supports the math co-processor. Yi+$g  
7. Lisp, Prolog give maximum flexibility but also maximizes 7o4B1YD  
bA8RoC  
development time. q_[V9  
l Internal representation is the way a model is represented in the +[Zcz4\9  
computer. &JHqUVs^  
l An interactive menu-driven procedure is used in this study /j:fc?yv  
l Shell can be develop very fast at the cost of time fairly severe E (bx/f  
limitations. DfV'1s4y  
l While there is no measurable saving of time for the case involving XVWVY}  
five criteria, the saving is dramatic for the case involving 10 criteria Gn} ^BJN  
-- the computation time reduces from 10 hr 40 min to about 1 min. h&j9'  
l This combination is being implemented in an objected-oriented CGY,I UG  
programming environment (Smalltalk-80 system) to solve problems SvN2}]Kh  
encountered in construction xxx. 3}25=%;[  
Method / Approach / Study / Process Model / Equation /Algorithm / cL yed3uU  
Rule / Formula / Technique AAPfU_: ^  
l A discussion is presented of a problem-solving system BFH=cs  
l To improve the efficiency of the method, the following approach _l||69|.  
may be applied. =VOl  *  
l In order to an investigation was made to find the causes of the `6QQS3fk!  
l Although large collections of rules and equations have been 6Z7J<0  
complied, none are generally accepted =]<JkWSk  
l This approach will be explained and discussed thoroughly in the (X(c.Jj  
body of the report. +U= !svE  
l This can be accomplished by Zg~6  
l This algorithm to compute the total cost can be described step by B#Z-kFn@  
step as follows: 9_I#{ ?  
l The above preliminary analysis has provided important d0CFMy6  
information tFKR~?Gc  
l Various methods have been proposed for selecting an optimum... }}MZgm~U)  
l These concepts have been applied to os~}5QJ  
l On the basis of the concept mentioned above, )'Yoii{dSU  
l This can be achieved by TVEFZ\p<A  
l This fact suggests that a new concept !-B r?  
l This was accomplished by taking ... KuohUH+  
gg}^@h&?  
l The preparatory stage is very time consuming process. r(uf yC&  
l Test are performed for validity, completeness, and compatibility aB+B1YdY"  
l There is little hope of achieving successful ... v'W`\MKY)  
l There has been an increasing awareness of the potential of using ^tY$pPA  
most ..so far made have not taken this approach, with the exception 5*31nMP\  
of >( :b\*C  
l Only a few studies can be found. {%Ujp9 i  
l It is a very tedious process to go through LJII7<k  
l It is only when .. has been completed that .. may be effected %V&I${z  
l The entire interpretation process is conducted in one's head. jtF et{  
l These approaches are sometimes very tedious. $bi@,&t;  
l Several techniques can be used }R]^%q@&  
l A polynomial parametric model can be written as [the b/ dyH  
following]/[follows]: *)H&n>"e  
l A xx model is constructed/formulated using xx. v'zj<|2  
l A xx model represents an xx by its xx. u]%>=N(^2  
l A process decision model captures the logic essential to {f }4l  
l From the equation above, xx is equal to the summation of xx  L4,Ke  
times the ... F9&ae*>,  
l The validity of a xx model can be checked using Euler's formula. OK" B`*  
l Given a model, one can mathematically determine whether ... or ... \d)~.2$G*  
l Equations for xx need to be derived and implemented in the sXaIQhZ  
system. ;uazQyo6  
l A number of heuristic rules have been developed for wWNHZ v&  
l Optimum .. techniques can be made more reliable by ... so that z nc'  
l An algorithm based on the characteristic ... is used to determine -n`igC  
l Euler's formula states the following: $SmmrM  
l The completed model should agree with the formula. T]fu[yRVvg  
l For manufacturing purposes, a detailed and precise model of the VY9|8g/  
object is necessary  `=h`:`  
l Engineering design models are very well defined; therefore, $"/xi `  
l To keep the domain narrow enough to be implementable, yet wide oT\u^WU  
enough to ' `*{ig  
be useful. kr C4O2Fkj  
UA|A>c  
Point of View z$>_c "D  
l from an implementation standpoint, (IXe5 55  
l From the point of view of this application, TFWx(}1  
l From this point of view, Zadeh suggested an inference rule named =nYd|Ok  
xxx (CRI for short). -H3tBEvoI  
l Information is the meaningful interpretation and correlation of +hIStA  
some aggregation of data in order to allow one to make decisions. w< hw>e^.  
l From a practical point of view, the computational aspects of an lKd+,<  
FLC require a simplification of the fuzzy control algorithm. G' ~Z'  
l The use of a hammer to insert screws, although partly effective, =Kv*M@  
tends to distort, destroy, and generally defeat the purpose of using a . _5g<aw;  
screw [Kusiak AI Implications for CIM p.129] VV*Z5U@b  
Justification N;9m&)@JR'  
l We choose the so called xx in our experiment because it has swBgV,;   
received wide acceptance and can cViEvS r  
l Prolog was chosen because it offers a well known and flexible w~NQAHAvo  
environment in which fuzzy reasoning may be easily implemented. w(QU'4~  
l The rationale behind this is that it can be much easier for an Awo H d7M  
estimator to rate a cost as high than to attempt to place a dollar UJXRL   
value on the estimate.  fWx %?J  
l This strategy has been widely used in fuzzy control applications $r`^8/Mq3  
since it is natural and easy to implement. kCXQHX  
l A function definition expresses the membership function of a OSk+l  
fuzzy set in a functional form, typically a bell-shaped function, etc. J6eF7 fa  
Such functions are used in FLC because they lead themselves to `.dX@<  
manipulation through the use of fuzzy arithmetic. U{vt9t  
l It should be noted that in our daily life most of the information on '~HCYE:5  
which our decisions are based is linguistic rather than numerical in "K3"s Ec%  
nature. Seen in this perspective, fuzzy control rules provide a natural $TON`+lB  
framework for the characterization of human behavior and decisions ,m| :U  
analysis. |H`}w2U[j  
l Many experts have found that fuzzy control rules provide a DQ '=$z  
>h^CC*&'pw  
convenient way to express their domain knowledge. This explains 4K_rL{s0U  
why most FLCs are based on the knowledge and experience which  F?UI8  
are expressed in the language of fuzzy "if-the" rule. d"K~+<V}  
Chapter 4. Examples s}8(__|  
Example/ Data EwvW: t1  
l The data used in the following example was taken from an J9!}8uD  
experiment in which xx was measured between x and x using a xx Y$3 &?LA  
technique. (twwDI  
l The data consists of over xx measurements. KxyD{W1  
l An example of xx is discussed and the control rules of xx are T5* t~`bfU  
compared with a xx bC_qoI<  
l Examples of complex processes to which this technique may be Akar@wh  
applied are xx, xx, etc. z_Em% X  
l The following example is constructed only for the purpose of v2OK/W,0  
illustrating the computational procedure discussed. +m|S7yr'  
l This example clearly demonstrates that the profile of an individual =<,>dBs}\  
xx, or a very small group of xx, with no enough data to be studied Y nD_:ZK  
statistically, can be meaningfully analyzed by fuzzy possibilistic *P\$<4l  
methods. \"L ;Ct 8  
l There is no space here to go into detail on all these methods, but _ELuQ>zM]+  
deserve a mention and the bibliography will point to detailed %2H0JXKa,  
references for those wishing this level of detail. 5k%Gj T  
l Note that the golf ball spotting example is used throughout the .[%^~q7  
paper. S511}KPbm/  
Comparisons MHl ffj  
l As well, the pros and cons of these representations from a process Pu|PIdu!08  
planning point of view will be discussed. ;iol 2  
l The method of using xx to implement xx described by Zadeh %pikt7,Z~  
(1973) appeared more suitable $w,O[PIi  
l As discussed [in the previous section]/[preciously], F0 .Rv):  
Q9Tt3h2ga  
Relation wSy|h*a,  
l We can not invert F' directly because it defines a many-to-one y\a@'LFL  
mapping. B^7B-R Bi0  
l The relationships appear very complicate dBWi1vTF  
l Lifting tasks involve complex and imprecise relationship between wBuos}/  
the task variables and the human operator's characteristics. =,MX%-2  
l These methods are based on the relationship between ... and ... g!QX#_~Il  
l The fundamental concept of a fuzzy rating language is that we can Ihn#GzM?u  
establish a relationship among terms such as high, medium, and low, `@_j Do  
and then modify these relationships. 0uZL*4A+C  
l This article will thus mention the latter as well as the former. ??]b,f4CNa  
l The former two bear a close relation to a fuzzy Cartesian product. qsA`\%]H  
Importance ;bYpMcH  
l The emphasis is on an implementation of a general approach to a< E\9DL  
rule based decision making. {uCX F~v  
Consideration / Attention Kggc9^ 7  
l Careful evaluation is necessary to ensure ,J@A5/B,AA  
l Such a formulation does not change further considerations. PHxU6UPqy  
l Considerable attention has been paid to J4) ?hS  
l Attention should be paid to an important finding of this iB XS   
investigation. }J^+66{  
l Caution should be exercised in this process to avoid ... >)j`Q1Qc\  
l Primary consideration is given to ... components, though others nb30<h  
can be accommodated WV8vDv1jt  
l After ... has been defined by ..., a carefully analysis is carried V [#$Sz[G  
out/performed to determine ;irAq|  
l A number of factors such as ...need to be taken into consideration i)1013b  
before making the appropriate decision.  W#bOx0  
l It should be noted that PAy/"R9DT-  
l It is important to point out that ... 2:jWO_V@  
l These considerations have heightened interest in the possibility of %7v!aJ40  
providing ... J=?P`\h  
@Rw]boC  
l We should stress the fundamental importance of the xx \c\z 6;j  
Chapter 5. Results. Zsto8wuf#  
Advantages / Disadvantage "nA~/t=  
l One of the major advantages of this new measure of xx is that it &~&oB;uR  
can be applied to the experimental study of }8Yu"P${Y  
l One advantage of using a .. is the ease of preparing it. 2]V&]s8Wi=  
l The xx system is versatile ec&K}+p @  
l It has a very fast decision making process {%BPP{OFk  
l All the algorithms involve mostly logical operations. (&!x2M  
l It can be easily and without additional cost implemented in a 1~ZFkcV_C  
microprocessor-based environment. =`OnFdI  
l It can reduce the waste of designing from scratch. }G ^nK m  
l The advantages of using a xx to represent xx are the following: % pQi}x  
l However, xx is not without its shortcomings. Xk9 8%gv  
l In most cases, the xxx shows an improvement over the existing Oq[YbQ'GE  
xxx. {lbNYjknS  
l Compared to the existing xx, the impacts of the xx are generally 1xDh[:6   
reduced by 5% to 9%. +GL[uxe "  
l The "best case" results shows a savings of 6% to 9%. VJSkQ\KD  
l Most of the existing works based on xx approach can only ftaa~h*  
recognize a xx . BV )) #D9  
l Most of the above methods are computational expansive and 5I&Dk4v  
limited to xx. &W{< Yf9  
l Some other advantages of xx are the following: sf Zb$T J  
l The problem is the limitation of this method to a limited domain of )S^[b2P]y_  
parts. u+m9DNPF  
l It proved limited in application because it demanded precision in 5"&=BD~D  
system modeling that was impossible in practice. ke19(r Ch  
l There are advantages to be gained in the structuring of costs and X }Fqif4A  
benefits, the use of xx, hg-M>|s7  
l The disadvantages of this method are also disadvantages of 9.wZhcqqU  
conventional xx approaches. `B/74Wa3q  
b!T-{ Ns6  
l This combines the best features of both techniques g4Nl"s *~  
l Hopefully, this tool can be as the reference framework of for %+oV-o\ #A  
developing a xx platform, and helping the administration, marketing, &F.L* M  
and knowledge management activities in virtual communities. a,eEP43dn  
Results >"[Nmx0;w  
l An improvement on the result shown above can be made by based 5Un)d<!7&u  
on the data provided _xGC0f (  
l Discussion of these theories is beyond the scope of this review ,[[Xo;q  
l Based on the information contained in this 1IN^,A]r2h  
l The result can be categorized into nine classes )v %tyU  
l The results are illustrated by an example Pv\-D<&@m  
l The experimental results for each xx time are reported in Table 2. gp-rTdN  
l From the results obtained so far, it seem that 87rHW@\](  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn ,|?rt`8)Q  
as 7Mb-v}  
l Although much effort has been made to., this reality is far from .xe+c K  
completion. %$F_oO7"  
l The results indicate that the total benefits are higher than the PoZx T-U  
total costs. O )INM  
l Their results may then serve as guidelines for lower level models, vvP]tRZ  
less fuzzy and more detailed. kyL]4:@W`  
Chapter 6. Conclusion 8@]vvZ2/gj  
l From the discussion, one may conclude that ... -*;JUSGh  
l Form the above discussion, the conclusion can be reached that :z2G a  
l The conclusions drawn are also valid tJpK/"R'  
l In conclusion to this, it becomes obvious that the problem of xx ldr~=<hsZ  
lies not only in... W_[ tdqey  
l We have attempted to introduce some concepts associated with a *rmM2{6  
theory of ft?c&h;At  
xx based on fuzzy sets. R T/)<RT9  
l Considerable more work, hopefully, will be done in this area 3ZhuC".c  
l A fuzzy set procedure is proposed to solve xx selection problems .}n\c%&  
Ie/dMB=t  
interwoven with imprecise data U4h5K}j4  
l Employing the compositional rule of inference, the assessment of vvF]g.,  
the xx compatibility in achieving prescribed xx projectiles in any U<wM#l P|Z  
level of the hierarchy is made possible. &e99P{\D  
l This paper has presented a theoretical and experimental study of G.>Ul)O:a  
the xx process and xx concept. "f>`ZFp^  
l The experimental research results will hopefully serve as useful !mK}Rim~  
feedback information for improvements for xx work. jAf qC@e  
l The scope of this contribution was to introduce a xx method. 3+H[S#e:Z  
l In general, fuzzy sets theory provides an alternative foundation mj&$+zM>  
for xx analysis in a fuzzy environment. PBgU/z Vn  
Future Research Y/y`c-VO  
l Thus, first extension of the approach could be, j {Sbf04  
l Present some cues for a further approach from Fuzzy Sets Theory ["15~9  
application to !wH'dsriD  
l Some improvements to the scheduling aspect of the model may Uac.8wQh  
be brought through additional levels in the hierarchy for more apWv+A  
detailed representation of the scheduling activity. W('V2Z-q  
Tables and Figures ~$m:j ];  
l Figure 7-1 sketches these relationships. VCa`|S?2  
l The graphical representation of these functions is shown in Figure +$# ytvDy  
1. EKNmXt1 lE  
l The xx may be depicted as in Figure 1. <J-.,:  
l Figure x shows the schematic diagram of the ebhV;Q.  
l Figure 1 though 2 provide a ... that Pp`[E/ qj4  
l the architecture of this expert system for .... is illustrated in Figure @P<aTRy,f  
2. co{i~['u  
l Figure 2 gives the outline of an ... system {}"a_L&[;  
l Table shows the /g$8JL  
l as shown in Table 1 and 2 iVA=D&eZ  
l This concept is illustrated in Figure 2 U+:Mu]97  
l At the top of Table xx are shown two blocks of data. t(xe*xS  
UVgDm&FF  
l Each table or matrix has constructs xx through xx as B]:?4Ov  
row-headings, lfqsoIn;  
xx through xx as column-headings. p%IVWeZnx  
l A table of .. is developed and significant recommendations are !&pk^VFl+  
made. JsDT  
CONJUGATION zin'&G>l  
To Indicate Addition fhmBKeFdV  
l additionally, again, also, and then, as can be easily understood, eOJ_L]y-  
besides, equally important, especially, finally, for the same reason, p+16*f9,^  
first, further, furthermore, in addition, last, likewise, moreover, next, @*iT%p_L  
second, third, too, evidently, obviously, roughly speaking, broadly 'W/AYF^5  
speaking jm,:jkr  
To Indicate Cause and Effect C^*}*hYk$  
l accordingly, as a result, consequently, for this reason, hence, in C@ "l"  
short, otherwise, then, therefore, thus, truly B*n_ VBd  
To indicate Comparison f!J?n]  
l in a like manner, likewise, similarly , alternatively L6J.^tpO  
To Indicate Concession ET\rd5Po  
l after all, although this may be true, at the same time, even though, @m9dB P  
even so , I admit, naturally, of course 51`*VR]`K  
To Indicate Contrast p?sFX$S  
l and yet, at the same time, but, for all that, however, yet, in fact, in -P28pVX`  
contrast, in the real life, in spite of, nevertheless, notwithstanding, DlQ*'PX7  
normally, on the contrary, on the other hand, still, traditionally, T*](oA @  
rather, unfortunately, #ib?6=sPC  
To Indicate Time Relationships: *yN#q>1  
after a short time, afterwards, as indicated earlier, as long as, as soon }a!c  
{r:5\  
as, at last, at length, at the moment, at that time, at the same time, Z%QU5.  
before, earlier, currently, immediately, in the meantime, in recent oFp4* <\  
years, lately, later, meanwhile, often, of late, presently, recently, lD,;xu Q  
soon, shortly, since, thereupon, temporarily, therefore, until, when, 'v%v*Ujf[  
while <UbLds{+Uo  
To Indicate Special Features or Examples: -8z@FLUK-  
for example, for instance, incidentally, indeed, in fact, in other words, \8/$ZEom  
in particular, in practice, specifically, that is, to illustrate, in this `$ZBIe/u  
respect, theoretically, as mentioned before / above 3j/~XT  
To Indicate Summary: _ "lW  
in brief, in conclusion, in short, in summary, on the whole, to hf5+$^RZ  
conclude D()tP  
, in general, to summarize, to sum up, as a result, ultimately, =[YjIWr#o  
VERB PHASE ShJBOaE; -  
l build a .. model A<[BR*n  
l build up the key link Zn]!*}  
l began a new era in ... c<5(c%a  
l can be regarded as / achieved / used to/for / found / obtained ~D_Wqr  
through c:`CL<xzU  
l can result in $uYfy<  
l carries out ... tasks x k&# fW^r  
l production information in order to simultaneously ilkN3J  
l contains all information necessary to describe DUvF  
l do not make use of production information S H;:bLk_  
l deals with 7o$S6Y;c4  
l end with failure d5qGTT ~a  
l fetch the information from the model directly ""x>-j4  
l has great potential / yet to be resolved / spurred the ^2"3h$DJfS  
development of / .12H/F  
been recognized as @hOT< Uo  
l BE aimed at / built up / carried out by / essentially concerned 7>xfQ  
Ex4)R2c*  
with / considered to be the key technology / associated with each 2;`WI:nt  
feature of a compo }/}eZCaG  
site component / cable of / currently implemented for / K# BZ Jcb  
demonstrated by an example / finally reached / made equal to / !_+ok$"d  
equivalent to / more suitable to / oriented to / interpreted as / RBV*e9P%  
pointed out / potentially of great benefit in the complex task of / UiH5iZ<r;  
shown in / used to effectively guide the search V7$-4%NL  
l makes use of -Rj3cx  
l make up $im6v  
l meets the needs of real life production,/ the current demands _!^2A3c<  
placed upon it Mb(hdS90  
l must be justified mjJ/rx{kbw  
l point out -\V;Gw8mD  
l play an important role QUz_2rN^  
l relates to ![/ QW  
l rely on KBwY _  
l satisfy the needs RKwuvVI  
l determine the total requirements for the ... qWb8"  
l uses ... as a key to search for... YbP}d&L  
l without relying on hpz DQ6-Y  
l will be available/ performed/ overlooked (zIF2qY  
NOUN PHASE Pt?d+aBtV  
l a basic technical function of b0yNc:  
l a critical need )C%S`d<%,  
l a key / principle feature of L?r\J8Ch<  
l a substantial impact on d2tJ=.DI  
l an intensive review was conducted RbJbVFz8C  
l an increasing need for expanding the application of .... Cp^%;(@  
l an important component / function / aspect / issue y+P$}Nru  
l each rule is numbered in sequence 7hfa?Mcz  
l each of these involves yrV]I(Xe  
l for this calculation, it is necessary to define f}{Oj-:"CC  
l in the physical environment / integration of 95 oh}c  
y\}<N6  
l in the reality of situations where … 4Q^i"jT  
l many aspects of :1e'22[=.  
l most past efforts have been spent on ... |n\(I$  
l common sense to a well studied and documented technical field. tk'3Q1L  
l sources of additional information on ... are listed BH^8!7dkT  
l systematic and rationally structured format lZ5TDS  
l the basis on which a range of ...operations can be established is ^li(q]g1!  
shown &-4S A j  
l THE basic philosophy / principles of / key element / general 7G9o%!D5  
hypothesis / candidate list of / concept of ... has attracted wide I>45xVA  
interest / function is concerned with / heart / impact / nature / role i-31Cxb  
/ task of / kernel functions :qO)^~x  
l the number of parts needed to @BS7Gyw  
l the above statement means that Ol1P  
l the output data is passed to KfMaVU=4P  
l the proposed method / underlying principle r`!S*zK  
l the recommendations made in this report, if implemented, should AX2On}&bf  
l this information resides in -'Y@yIb  
l this process is composed of ... different ... operation ^%2S,3*0  
l along with the use of hYv;*]  
l concerning general aspects of S`Wau/7t  
l due to -MT.qhx  
l for later use in generating..., "xY]&  
l in turn, y/yg-\/XF  
l IT IS believed / noted / assumed / suggested / shown / quite ICB'?yZ,  
evident / appears / implies that / intended for / of no important to O5?3 nYHa  
l it can be claimed/concluded that PvB-Cqc  
l it demonstrates the decisions required of g;PZ$|%&s>  
l it also provides information to .. T1c.ER}17  
l it becomes essential to 6qp' _?  
l let ... be the probability that coFQu ; i  
l once... is written, it is compiled into... agMI$  
l suppose it is observed that g7nqe~ `{  
l this is because TWAt) Q"J  
p:q?8+W-r  
l this results in a @8xa"Dc  
l upon completion of the ... analysis, ,zU7UL^I  
l when the knowledge is of mathematics or quantum physics, it will !$| h[ct  
also be b^I(>l-  
recorded in books and papers RFq&#3f$  
l selection of rules for using the tools, for generating operation }iCcXZ&5^  
plans, #K _E/~  
is another matter of preference, since practice varies greatly. 0?d}Oj  
l for the sake of convenience i!9|R)c  
l correct decision to be reach mbh;oX+  
l keeping the number of rules to a minimum. <fm0B3i?  
l a good process plan will result exhibiting several characteristics: Kx@;LRY#  
l practical solutions jVhfpS[  
l because of rather small job lot sizes *)4 `"D  
l Backward reasoning can be used to answer the question "should E A8>{}Z*  
milling tool be select" different level of knowledge in the realm of k%S;N{Qh@  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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