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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 $/nU0W  
XJDp%B  
>}GtmnF  
Beginning QRhR.:M\  
1. In this paper, we focus on the need for > y"V%  
2. This paper proceeds as follow. 0Jz'9  
3. The structure of the paper is as follows. 6<.Ma7)lA  
4. In this paper, we shall first briefly introduce fuzzy sets and related `omZ'n)  
concepts 9a"[-B:  
5. To begin with we will provide a brief background on the ?SRG;G1  
Introduction Wd?(B4{  
1. This will be followed by a description of the fuzzy nature of the 1om:SHw  
problem and a detailed presentation of how the required R8Nr3M9 )  
membership functions are defined. BV" 7Wp;  
2. Details on xx and xx are discussed in later sections. z{Z'2, #  
3. In the next section, after a statement of the basic problem, various u.x>::i&  
situations involving possibility knowledge are investigated: first, an qd(C%Wk  
entirely possibility model is proposed; then the cases of a fuzzy Zsc710_  
service time with stochastic arrivals and non-fuzzy service rule is lX/s  Q  
studied; lastly, fuzzy service rule are considered. d4t %/Uh  
Review n.n;'p9t@  
1. This review is followed by an introduction. Z0s}65BR  
2. A brief summary of some of the relevant concepts in xxx and xxx is <43O,Kx'Su  
presented in Section 2. v\PqhIy"  
3. In the next section, a brief review of the .... is given. 4*< x0  
4. In the next section, a short review of ... is given with special regard C;];4[XR  
to ... k#NIY4%.  
5. Section 2 reviews relevant research related to xx. .w/w] Eq  
6. Section 1.1 briefly surveys the motivation for a methodology of 109dB$+$  
action, while 1.2 looks at the difficulties posed by the complexity of o8;>E>;  
systems and outlines the need for development of possibility GM=r{F &  
methods. F9p'| -   
Body s.`:9nj  
1. Section 1 defines the notion of robustness, and argues for its T1 >xw4uo  
k#X~+}N^  
importance. Fv$5Zcf  
2. Section 1 devoted to the basic aspects of the FLC decision-making |fqYMhA U  
logic. lHQ:LI  
3. Section 2 gives the background of the problem which includes xxx OV/H&fe  
4. Section 2 discusses some problems with and approaches to, mrWPTCD{  
natural language understanding. k8IhQ{@  
5. Section 2 explains how flexibility which often ... can be expressed  ~A^E_  
in terms of fuzzy time-window @i2"+_}*  
6. Section 3 discusses the aspects of fuzzy set theory that are used in kT)[<`p  
the ... S"hA@j  
7. Section 3 describes the system itself in a general way, including eA q/[(  
the ….. and also discusses how to evaluate system performance. d1CQ;,Df<  
8. Section 3 describes a new measure of xx. QL/I/EgqC  
9. Section 3 demonstrates the use of fuzzy possibility theory in the kq|(t{@Rp  
analysis of xx. 'kU5  
10. Section 3 is a fine description of fuzzy formulation of human d8D028d  
decision. tSibz l~  
11. Section 3 is developed to the modeling and processing of fuzzy NzS(, F  
decision rules M;2@<,rM  
12. The main idea of the FLC is described in Section 3 while Section 4 kIl!n  
describes the xx strategies. F(h jP  
13. Section 3 and 4 show experimental studies for verifying the :Kq]b@ X  
proposed model. yuP1*QJ%  
14. Section 4 discusses a previous fuzzy set-based approach to cost Cp"a,%b6u  
variance investigation. hK]mnA[Y  
15. Section 4 gives a specific example of xxx. ,X`w/ 2O  
16. Section 4 is the experimental study to make a fuzzy model of |WP}y- Au  
memory process. Lf 0X(tC  
17. Section 4 contains a discussion of the implication of the results of U80h0t%  
Section 2 and 3. a gk w)#  
18. Section 4 applies this fuzzy measure to the analysis of xx and L2\<iJA}c  
illustrate its use on experimental data. LX'z7fh  
19. Section 5 presents the primary results of the paper: a fuzzy set jouA ]E  
model .. njxfBA:  
) kMF~S|H  
20. Section 5 contains some conclusions plus some ideas for further B,S~Idr}  
work. _DouVv>  
21. Section 6 illustrates the model with an example. { )g $  
22. Various ways of justification and the reasons for their choice are 0Sj B&J  
discussed very briefly in Section 2. %_@T'!]  
23. In Section 2 are presented the block diagram expression of a jK-b#h.gL  
whole model xmNs%  
of human DM system c/DK31K  
24. In Section 2 we shall list a collection of basic assumptions which *^oL$_Y  
a ... scheme must satisfy. i 558&:  
25. In Section 2 of this paper, we present representation and q6PG=9d0B  
uniqueness theorems for the fundamental measurement of fuzziness ?}e^-//*i  
when the domain of discourse is order-dense. 6H1;Hl f  
26. In Section 3, we describe the preliminary results of an empirical uv=a}U;  
study Xf#+^cQ  
currently in progress to verify the measurement model and to uH&B=w  
construct membership functions. W{%X1::q$  
27. In Section 5 is analyzed the inference process through the two c)3.AgT  
kinds of inference experiments... n:[@#xs-  
This Section {/j gB"9  
1. In this section, the characteristics and environment under which esiU._:u  
MRP is designed are described. 9}wI@  
2. We will provide in this section basic terminologies and notations Aydpr_lp  
which are necessary for the understanding of subsequent results. %VGW]!QR  
Next Section M1]}yTCd  
2. The next section describes the mathematics that goes into the _NB*+HVo  
computer implementation of such fuzzy logic statements. +T&YYO8>5  
3. However, it is cumbersome for this purpose and in practical h'HI92; [  
applications the formulae were rearranged and simplified as kY?tUpM!TB  
discussed in the next section. HSWki';G  
4. The three components will be described in the next two section, jEE!H /  
and an example of xx analysis of a computer information system will IG{ lr  
DZ @B9<Zz{  
then illustrate their use. soLW'8  
5. We can interpret the results of Experiments I and II as in the Xt:$H6 y  
following sections. -wrVEH8  
6. The next section summarizes the method in a from that is useful q 'd]  
for arguments based on xx MhR`  
Summary < =~=IZ)  
1. This paper concludes with a discussion of future research ^r-d.1  
consideration in section 5. ,oUzaEX  
2. Section 5 summarizes the results of this investigation. O\ _ro.  
3. Section 5 gives the conclusions and future directions of research. :._Igjj$=  
4. Section 7 provides a summary and a discussion of some extensions eAo+w*D(  
of the paper. %.hJDX\j  
5. Finally, conclusions and future work are summarized {Ef.wlZ  
6. The basic questions posed above are then discussed and 2 F>Y{3&  
conclusions are drawn. 7)]boW~Q  
7. Section 7 is the conclusion of the paper. tewp-M KA  
Chapter 0. Abstract $cK}Tl q  
1. A basic problem in the design of xx is presented by the choice of a 'iF%mnJ  
xx rate for the measurement of experimental variables. S 't9F  
2. This paper examines a new measure of xx in xx based on fuzzy rH!sImz,  
mathematics which overcomes the difficulties found in other xx ~Ni  
measures. $1 "gFg  
3. This paper describes a system for the analysis of the xx. faDS!E' +  
4. The method involves the construction of xx from fuzzy relations. >G8I X^*sG  
5. The procedure is useful in analyzing how groups reach a decision. cz,QP'g  
6. The technique used is to employ a newly developed and versatile =]]1x_GB  
xx algorithm. Mib .,J~  
7. The usefulness of xx is also considered. CDM6o!ur3  
8. A brief methodology used in xx is discussed. @]%eL  
9. The analysis is useful in xx and xx problem. <zR{'7L/  
10. A model is developed for a xx analysis using fuzzy matrices. jQ;/=9  
11. Algorithms to combine these estimates and produce a xx are e)wi}\:q_  
ru@#s2  
presented and justified. Sc]K-]1(H  
12. The use of the method is discussed and an example is given. |dLr #+'az  
13. Results of an experimental applications of this xx analysis !Ztqh Xr  
procedure are given to illustrate the proposed technique. =4MTb_  
14. This paper analyses problems in &Gh0f"?  
15. This paper outlines the functions carried out by ... La )M  
16. This paper includes an illustration of the ... z^U+ oG  
17. This paper provides an overview and information useful for e?.j8 Q ~  
approaching `=H*4I-"  
18. Emphasis is placed on the construction of a criterion function by .p! DVQ"a  
which the xx in achieving a hierarchical system of objectives are (O{OQk;CF  
evaluated. ):'wxIVGI  
19. The main emphasis is placed on the problem of xx `s)4F~aVo  
20. Our proposed model is verified through experimental study. 6 X~><r  
21. The experimental results reveal interesting examples of fuzzy |-x-CSN  
phases of: xx, xx FL' }~il  
22. The compatibility of a project in terms of cost, and xx are likewise ;&&<zWq3h  
represented by linguistic variables. 3<&:av3  
23. A didactic example is included to illustrate the computational Cw+boB_tip  
procedure d}4NL:=&  
Chapter 1. Introduction OF7hp5  
Time vHf)gi}O|  
1. Over the course of the past 30 years, .. has emerged form intuitive ~{I.qv)>M~  
2. Technological revolutions have recently hit the industrial world ri{*\LV*@  
3. The advent of ... systems for has had a significant impact on the k`m7j[A]l  
4. The development of ... is explored  Y${'  
5. During the past decade, the theory of fuzzy sets has developed in a 9m M3Ve*  
variety of directions $Aw@xC^!  
6.The concept of xx was investigated quite intensively in recent years `f>!/Zm%9  
7. There has been a turning point in ... methodology in accordance XLn9NBT4K  
with the advent of ... PT2;%=f  
8. A major concern in ... today is to continue to improve... fs ufYIf  
9. A xx is a latecomer in the part representation arena. \EfX3ghPI  
1Z}5ykM3  
10. At the time of this writing, there is still no standard way of xx L~6%Fi&n4  
11. Although a lot of effort is being spent on improving these h9Far8}  
weaknesses, the efficient and effective method has yet to be Cq2Wpu-u  
developed. 6j(/uF4!#  
12. The pioneer work can be traced to xx [1965]. w ~*@TG  
13. To date, none of the methods developed is perfect and all are far M1kA-Xr  
from ready to be used in commercial systems. '|IcL1c=I  
Objective / Goal / Purpose cj[b^Wv:  
1. The purpose of the inference engine can be outlined as follows: `*8}q!.  
2. The ultimate goal of the xx system is to allow the non-experts to 3NpB1lgh&:  
utilize the existing knowledge in the area of manual handling of loads, <K[y~9u  
and to provide intelligent, computer-aided instruction for xxx. L0g+RohW  
3. The paper concerns the development of a xx a#j,0FKv  
4. The scope of this research lies in \(Sly&gL  
5. The main theme of the paper is the application of rule-based {fXkbMO|  
decision making. jaoZ}}V_$  
6. These objectives are to be met with such thoroughness and /w?e(v<  
confidence as to permit ... EwPrh  
7. The objectives of the ... operations study are as follows: ;@ePu  
8. The primary purpose/consideration/objective of aN0[6+KP;  
9. The ultimate goal of this concept is to provide = 7y-o  
10. The main objective of such a ... system is to ;_cTrjMv\  
11. The aim of this paper is to provide methods to construct such :TQp,CEa  
probability distribution. ws0qwv#  
12. In order to achieve these objectives, an xx must meet the G)7U &B  
following requirements: X"{%,]sb G  
13. In order to take advantage of their similarity +dCDk* /m  
14. more research is still required before final goal of ... can be <Q|\mUS6  
completed k)b{ UFRW  
15. In this trial, the objective is to generate... Clum m@z;#  
16. for the sake of concentrating on ... research issues GeR#B;{  
17. A major goal of this report is to extend the utilization of a recently ;73S;IPR  
developed procedure for the xx. ahl|N`  
`yfZ{<  
18. For an illustrative purpose, four well-known OR problems are =0cTct6 \  
studied in presence of fuzzy data: xx. p'h'Cz  
19. A major thrust of the paper is to discuss approaches and `jE[Xt"@  
strategies for structuring ..methods e/D{^*~S  
20. This illustration points out the need to specify SP%X@~d  
21. The ultimate goal is both descriptive and prescriptive. -N' (2'  
22. Chapter 2. Literature Review ^OV; P[  
23. A wealth of information is to be found in the statistics literature, b bC@  
for example, regarding xx [5P-K{Ko  
24. A considerable amount of research has been done .. during the qR@ ES J_  
last decade )U\i7[k>  
25. A great number of studies report on the treatment of \g34YY^L3  
uncertainties associated with xx. t1Ts!Q2  
26. There is considerable amount of literature on planning $>/d)o  
27. However, these studies do not provide much attention to Q,NnB{R  
uncertainty in xx. }_lG2#Ll5  
28. Since then, the subject has been extensively explored and it is [Hx}#Kds  
still under investigation as well in methodological aspects as in Wet0qt]  
concrete applications. Q6(~VvC-  
29. Many research studies have been carried out on this topic. ?nc:bC  
30. Problem of xx draws recently more and more attention of system n{QyqI  
analysis. o CCtjr  
31. Attempts to resolve this dilemma have resulted in the C@qWour  
development of (U 'n1s/X  
32. Many complex processes unfortunately, do not yield to this +C`!4v\n  
design procedure and have, therefore, not yet been automated. m'2F#{  
33. Most of the methods developed so far are deterministic and /or v6)QLp  
probabilistic in nature. XoyxS:=>|[  
34. The central issue in all these studies is to IgbuMEfL  
35. The problem of xx has been studied by other investigators, @* hv|zjs  
however, these studies have been based upon classical statistical WoXAOj%iW  
approaches. @JSWqi>  
36. Applied ... techniques to | co#X8J  
37. Characterized the ... system as #. Dl1L/  
]:f.="  
38. Developed an algorithm to qBk[Afjgz  
39. Developed a system called ... which 0@_8JB ?E  
40. Uses an iterative algorithm to deduce 0/~p1SSun  
41. Emphasized the need to lZwjrU| _  
42. Identifies six key issues surrounding high technology \B')2phE  
43. A comprehensive study of the... has been undertaken Yh]a4l0  
44. Much work has been reported recently in these filed *c#DB{N  
45. Proposed/Presented/State that/Described/Illustrated/ n*GB`I*g  
Indicated/Has shown / showed/Address/Highlights moM'RO,M  
46. Point out that the problem of l4kqz.Z-g  
47. A study on ...was done / developed by [] 7NEOaX(J9  
48. Previous work, such as [] and [], deal only with ydD:6bBX  
49. The approach taken by [] is f.ua,,P.  
50. The system developed by [] consists N_D=j 6B  
51. A paper relevant to this research was published by [] d)48m}[:  
52. []'s model requires consideration of... eZ) |m  
53. []' model draws attention to evolution in human development Rq1 5AR  
54. []'s model focuses on... uEPm[o yX  
55. Little research has been conducted in applying ... to ~RLjL"  
56. The published information that is relevant to this research... ^/2O_C  
57. This study further shows that v2|zIZ  
58. Their work is based on the principle of KXTk.\c  
59. More history of ... can be found in xx et al. [1979]. r(]Gd`]  
60. Studies have been completed to established d > M0:  
61. The ...studies indicated that P,S!Z&!  
62. Though application of xx in the filed of xx has proliferated in 937<:zo:  
recent years, effort in analyzing xx, especially xx, is lacking. @ &c@  
Problem / Issue / Question ]mBlXE:Z  
63. Unfortunately, real-world engineering problems such as o)\EfPT  
manufacturing planning do not fit well with this narrowly defined {w>ofyqfp&  
model. They tend to span broad activities and require consideration M9V ,;*  
of multiple aspects. *[nS*D\:  
64. Remedy / solve / alleviate these problems L-W*h  
67. ... is a difficult problem, yet to be adequately resolved w#(E+s~}  
.Xta;Py|J  
68. Two major problems have yet to be addressed ^-# :T  
69. An unanswered question 1i Y?t  
70. This problem in essence involves using x to obtain a solution. +DT tKj  
71. An additional research issue to be tackled is .... eF 8um$t9  
72. Some important issues in developing a ... system are discussed qB3& F pgW  
73. The three prime issues can be summarized: tV.96P;)/9  
74. The situation leads to the problem of how to determine the ... Se/]J<]  
75. There have been many attempts to p'SY 2xq-,  
76. It is expected to be serious barrier to 9OF(UFgS  
77. It offers a simple solution in a limited domain for a complex #|xj*+)H  
problem. d cht8nX7~  
1. There are several ways to get around this problem. =WOYZ7  
2. As difficult as it seems to be, xx is by no means new. ~o ;*{ Q  
3. The problem is to recognize xx from a design representation. d~d~Cd`V  
4. A xx problem can trace its roots to xx. Jxb+NPUB  
5. xx [1987] used a heuristic approach to simplify the complexity of QEL3b4Vm  
the problem. nG5: H.)  
6. Several problems are associated with them. X15e~;&  
7. Although some progress has been made in this area, at least two zQ eXN7$  
major obstacles must be overcome before a fully automated system gJn_8\,C>Q  
can be realized. x:Tm4V{  
8. Most problems in practice are complicated == i?lbj  
9. More problem surface here. _EZrZB  
10. Hamper effort toward a xx system a _(vpD^  
11. In order to overcome the limitations due to incomplete and Q,f5r%A.  
imprecise xx knowledge, a xx program has been developed, which HQ8;d9cGir  
bases its knowledge upon the statistical analysis of a sample  #`2*V  
population of xx n|iO)L\9aB  
12. The above difficulties are real challenges faced by researchers g*#.yC1/  
attempting to develop {@[z-)N7\,  
13. This type of mapping raises no controversy to the issue of U ,u\o@3A  
membership function determination. E>SLR8!C v  
14. However, attempts to quantify the xx have met both theoretical *9Nq^ +  
and empirical problems. 3+jqf@fO  
X8b = z9  
15. It has become apparent that in order to apply this new gg%OOvaj5  
methodological framework to real-world problems and data, we have @ (A[H^E  
to pay attention to the problems of xx and xx. "o[j'  
Chapter 3. Proposed methodology c`&<"Us  
Assumption H6XlSj  
1. In the case when the assumption of a xx seems to be too +O @0gl  
restrictive or inadequate, the formulation with Fuzzy termination ZtfPB  
time, i.e. given by a fuzzy set in the space of control stages, may be T/&4lJ^2l^  
applied. 9IC|2w66  
2. We assume here the fuzzy constraints to be state-dependent, and G? "6[w/p  
the fuzzy goal to be the same for all the control states, xx, which J_A5,K*r|  
stems from the problem's nature. .5zqpm  
3. An approach to the solution of this problem is presented under the bgjo_!J+Pp  
assumption that the sampling rate Decision can be made prior to the &pD6Qq {  
execution of the experiment, as opposed to being made while the ]I#yS=;  
experiment is in progress. f6ad@2  
4. Another assumption made above is that there are precise odds at g3(fhfR'RN  
which the expert is indifferent. ^MGgFS]G  
5. Main simplifying assumptions are: !$x9s'D  
6. This, in our view, is a questionable assumption. (JHL0Z/  
Outline / Structure / Module Bp`?inKBOd  
1. An outline of the research h$FpH\-  
2. Information is incorporated within the scheme VSCOuNSc  
3. Is built into ... structure lmZ Ssx  
4. A nice modular structure. uFIr.U$V  
5. The principles of ... are applied as modularized criteria DDT)l+:XP  
Classification !52]'yub  
1. A xx system comprises three main components: 0S0 ?\r  
2. Must decompose the original .. into a set of .. u|.L7 3<j%  
3. Consists of the following steps: (8u.Xbdh  
4. This is summarized in the following steps: c@%:aiEl  
e`fN+  
5. Can be broadly classified into the following areas: N246RV1W  
6. Can be characterized by its function of effectively processing the cWSiJr):r  
7. Can allow further breadth of application of ...into more A=/|f$s+  
8. The following steps should be followed %:2<'s2Si  
9. xx can be classified by a different ways. PK@hf[YHe  
10. Based on the xx, one may classify xx into the following: ]?p&sI4  
11. This catalog may change due to wear, breakage, and purchasing.  g-MaP  
System gN|[n.W4  
1. Unlike many conventional program, expert systems do not L\--h`~YU  
usually deal with problem for which there is clearly a right or wrong TOp|Qt n  
answer. u;m[,  
2. The system consists of both ... and ... \Jr ta  
3. The system has a hierarchical modular architecture organized on sHx>UvN6  
three levels. M/XxiF  
4. expert system domains are area of expertise >L F y:a  
5. To develop a xx system for xx, the following factors must be &o>ctf.x  
considered: 8jW"8~Y#0  
6. The system has been developed / designed to determine #I jG[a-  
7. The system has proven to be able to |[/[*hDZ9  
8. The domain in which an expert system operates is a particular u6{= Z:  
domain X(nbfh?n  
9. The system comprises a ... with F3$@6J8<[z  
10. The system is [feature-oriented ] / based on the ... technique u/3[6 MIp  
11. The system environment must be relatively stable Zi5d"V[}T  
12. The system is utilized to generate, load, store, update and jdsNZV  
retrieve ... e"9 u}-Q@  
13. The development of a xx system has two stages: xx stage and xx dGf:0xE"  
stage. iq_y80g`8h  
14. The most essential part of .. system is the ... >h+[#3vD  
15. The successful developments in ESs have made them an Ff xf!zS  
important tool in the development of I^>m-M.  
16. An automated system was developed for ^s z4-+>  
17. In this case, the system can be considered to be generative. `NqX{26GV+  
W<<{}'Db/#  
18. An interactive automatic ... system YY~BNQn6d  
19. A …. is commonly thought of as a truly integrated .. system #-b0U[,.  
20. Should be capable of being generated from a ... system  AnK-\4  
21. xx is an important part of the integrated system. "J|_1!9  
22. The model consists of four rule bases, each of which addresses a d1YE$   
separate problem in the hierarchy of scheduling decision. NV 6kj=r  
23. The rule bases are linked to each other in a chin-like manner in ~^#F5w"  
the sense that the consequent of one rule base constitutes a part of u~MD?!LV  
the antecedent of the next rule base. ;Ml??B]C  
24. The rule base consists of all possible combinations of the QJ{to%  
linguistic terms associated with the linguistic variable of the WVaIC$Y  
antecedent of a rule. .I%p0ds1r  
Computer System )Ih '0>=  
1. The system has been implemented using Prolog language in an N<bNJD}  
MS-DOS environment. Prolog was chosen because it offers a well ,0ZkE}<=w  
known and flexible environment in which fuzzy reasoning may be ~9#nC`%2j  
easily implemented. 0@;kD]Z  
2. The current version of the xx program when compiled with JN;92|x  
WATFOR77 results in an executable code of about 270K bytes. ~I^}'^Dbb  
Typical run time, when run on a XX computer (an IBM compatible CS[[TzC=5  
machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min X ?p_O2#k  
to 2h, depending on the size (or complexity) of the problem. 5X^bvW26  
3. Time consuming procedures have been implemented in yl63VX8w}  
C-language and directly linked to the Prolog environment. Efo,5  
4. The xx process, once the xx's data has been entered, requires FQNw89g  
approximately 180 seconds. C4V#qhj  
5. It should be noted that the computation was done with a 20 Hhz, CV <@Rg oa  
80386..209;based microcomputer equipped with a 80387 math I{Pny/d`  
co-processor. A/ kRw'6  
6. The computer programs used for the analyses, one based on the xx [kc%+j<g  
method and the other based on the new method, were written in }Ip"j]h  
FORTRAN with a compiler that supports the math co-processor. ,,+ ~./)  
7. Lisp, Prolog give maximum flexibility but also maximizes qK ,mG {  
.;gK*`G2W)  
development time. Iq&S6l <0  
l Internal representation is the way a model is represented in the C9oF*{  
computer. p_hljgOV  
l An interactive menu-driven procedure is used in this study F+e J9  
l Shell can be develop very fast at the cost of time fairly severe )3i}(h0  
limitations. 3HsjF5?W  
l While there is no measurable saving of time for the case involving +cAN4  
five criteria, the saving is dramatic for the case involving 10 criteria B7Um G)C  
-- the computation time reduces from 10 hr 40 min to about 1 min. 13s0uyYU<m  
l This combination is being implemented in an objected-oriented ^'8T9N@U  
programming environment (Smalltalk-80 system) to solve problems zdA:K25"  
encountered in construction xxx. yVPkJ  
Method / Approach / Study / Process Model / Equation /Algorithm / [0GM!3YJ7  
Rule / Formula / Technique [kqxC  
l A discussion is presented of a problem-solving system CL(,Q8yG  
l To improve the efficiency of the method, the following approach 5G8 `zy  
may be applied. X-di^%<  
l In order to an investigation was made to find the causes of the g0.D36  
l Although large collections of rules and equations have been ]rM{\En  
complied, none are generally accepted ?U0iHg{  
l This approach will be explained and discussed thoroughly in the 6l#1E#]|  
body of the report. l79jd%/m  
l This can be accomplished by EmNB}\IYU  
l This algorithm to compute the total cost can be described step by R<mLG $  
step as follows: >Uvtsj#  
l The above preliminary analysis has provided important %+$P<Rw7  
information XKp%7;  
l Various methods have been proposed for selecting an optimum... ovCk :Vz  
l These concepts have been applied to CGg:e:4  
l On the basis of the concept mentioned above, UQ>GAzh  
l This can be achieved by .Gl&K|/{j  
l This fact suggests that a new concept 0c1}?$f[?%  
l This was accomplished by taking ... G;Y,C<)0k  
[p@NzS/  
l The preparatory stage is very time consuming process. f7X#cs)a  
l Test are performed for validity, completeness, and compatibility 6f=/vRAh$  
l There is little hope of achieving successful ... 1 7{]QuqNF  
l There has been an increasing awareness of the potential of using XrC{ {K  
most ..so far made have not taken this approach, with the exception <E@ 7CG.=  
of /+RNPQO O  
l Only a few studies can be found. wRPBJ-C)  
l It is a very tedious process to go through >^:g[6Sj  
l It is only when .. has been completed that .. may be effected Bx&` $lW  
l The entire interpretation process is conducted in one's head. fY=iQ?{/[  
l These approaches are sometimes very tedious. TFxb\  
l Several techniques can be used bS/`G0!  
l A polynomial parametric model can be written as [the }(E6:h;}~  
following]/[follows]: 5F2+o#*h  
l A xx model is constructed/formulated using xx. CX':nai  
l A xx model represents an xx by its xx. ,_rarU)[J  
l A process decision model captures the logic essential to Q77qrx3  
l From the equation above, xx is equal to the summation of xx &;)~bS(   
times the ... Ynz^M{9)K  
l The validity of a xx model can be checked using Euler's formula. (dMFYL>YP  
l Given a model, one can mathematically determine whether ... or ... phXVuQ  
l Equations for xx need to be derived and implemented in the +8^9:w0}  
system. ]Vb#(2<2  
l A number of heuristic rules have been developed for -&)^|Atm  
l Optimum .. techniques can be made more reliable by ... so that e!4akKw4wD  
l An algorithm based on the characteristic ... is used to determine WP]<\_r2  
l Euler's formula states the following: c+a f=ac  
l The completed model should agree with the formula. CPVKz   
l For manufacturing purposes, a detailed and precise model of the @0 -B&w  
object is necessary CCEx>*E6c  
l Engineering design models are very well defined; therefore, ,o9)ohw  
l To keep the domain narrow enough to be implementable, yet wide J.<eX=<  
enough to 3~cOQ%#]4  
be useful. Y~vTFOI  
_23sIUN c3  
Point of View Mxd fuFss  
l from an implementation standpoint, |ni cvg@  
l From the point of view of this application, COHJJONR  
l From this point of view, Zadeh suggested an inference rule named pRU6jV 6e)  
xxx (CRI for short). !r LHPg  
l Information is the meaningful interpretation and correlation of O"#`i{^?2  
some aggregation of data in order to allow one to make decisions. u^]yz&9V  
l From a practical point of view, the computational aspects of an /vPb  
FLC require a simplification of the fuzzy control algorithm. %ly;2H Ik  
l The use of a hammer to insert screws, although partly effective, z=K5~nU  
tends to distort, destroy, and generally defeat the purpose of using a D{loX6  
screw [Kusiak AI Implications for CIM p.129] D46| )-  
Justification H]-W$V   
l We choose the so called xx in our experiment because it has L3GJq{t  
received wide acceptance and can (D l"s`UH~  
l Prolog was chosen because it offers a well known and flexible w-#0k.T  
environment in which fuzzy reasoning may be easily implemented. 7S1!|*/ I  
l The rationale behind this is that it can be much easier for an e{} o:r  
estimator to rate a cost as high than to attempt to place a dollar -$0S#/)Z  
value on the estimate. &.z/dFmG  
l This strategy has been widely used in fuzzy control applications >WDpBn :  
since it is natural and easy to implement. IRU2/Ycg  
l A function definition expresses the membership function of a s{,e^T  
fuzzy set in a functional form, typically a bell-shaped function, etc. qnS7z%H8   
Such functions are used in FLC because they lead themselves to x$Oz0[  
manipulation through the use of fuzzy arithmetic. @i68%6H`?  
l It should be noted that in our daily life most of the information on YHA[PF   
which our decisions are based is linguistic rather than numerical in @TprS d  
nature. Seen in this perspective, fuzzy control rules provide a natural 5`uS<[vA  
framework for the characterization of human behavior and decisions >'jM8=o*Ax  
analysis. i\ Vpp8<B  
l Many experts have found that fuzzy control rules provide a kb:C>Y8!sC  
|pgkl`  
convenient way to express their domain knowledge. This explains mTPj@F>   
why most FLCs are based on the knowledge and experience which KwHOV$lD;  
are expressed in the language of fuzzy "if-the" rule. O9_YVE/-]  
Chapter 4. Examples 5ZcnZlOOQ  
Example/ Data ]]Z,Qu#<-  
l The data used in the following example was taken from an ul?BKV+3E  
experiment in which xx was measured between x and x using a xx _tk5?9Ykn  
technique. @ 7?_Yw  
l The data consists of over xx measurements. #'8PFw\zw  
l An example of xx is discussed and the control rules of xx are 9CNHjs+-}s  
compared with a xx IebS~N E  
l Examples of complex processes to which this technique may be i njmP9ed  
applied are xx, xx, etc. zK 2wLX  
l The following example is constructed only for the purpose of ?lK!OyCkc  
illustrating the computational procedure discussed. wuzz%9;@B  
l This example clearly demonstrates that the profile of an individual nnG2z @$-  
xx, or a very small group of xx, with no enough data to be studied 'oz = {;  
statistically, can be meaningfully analyzed by fuzzy possibilistic #CPPdU$  
methods. vb- .^l  
l There is no space here to go into detail on all these methods, but gDub+^ye>/  
deserve a mention and the bibliography will point to detailed L:M9|/  
references for those wishing this level of detail. hU 7fZl%yl  
l Note that the golf ball spotting example is used throughout the SR& mHI-f0  
paper. DANSexW  
Comparisons (U_Q7hja?  
l As well, the pros and cons of these representations from a process #mhD; .Wg  
planning point of view will be discussed. QYgN39gp  
l The method of using xx to implement xx described by Zadeh 4Aew )   
(1973) appeared more suitable ,)$KS*f"*z  
l As discussed [in the previous section]/[preciously], HF: T]n,  
Wi?%)hur  
Relation cN7z(I0[  
l We can not invert F' directly because it defines a many-to-one B)]{]z0+`  
mapping. 51 0XDl~b  
l The relationships appear very complicate <aaDW  
l Lifting tasks involve complex and imprecise relationship between aNC,ccm  
the task variables and the human operator's characteristics. V;-.38py  
l These methods are based on the relationship between ... and ... '$XHRS/q]  
l The fundamental concept of a fuzzy rating language is that we can b8Rh|"J)d  
establish a relationship among terms such as high, medium, and low, \TB%N1^  
and then modify these relationships. +M##mRD  
l This article will thus mention the latter as well as the former. ZQ9oZHUm  
l The former two bear a close relation to a fuzzy Cartesian product. O^Vy"8Ji}y  
Importance W)!{U(X  
l The emphasis is on an implementation of a general approach to P5}[*k%DQw  
rule based decision making. O*03PF^  
Consideration / Attention pLQSG}N  
l Careful evaluation is necessary to ensure 0r-lb[n8i  
l Such a formulation does not change further considerations. GHJ=-9{YL  
l Considerable attention has been paid to ' ?G[T28  
l Attention should be paid to an important finding of this 3{4/7D cX  
investigation. gZ"{{#:}  
l Caution should be exercised in this process to avoid ... to!W={S<ol  
l Primary consideration is given to ... components, though others Pkx(M E  
can be accommodated 6eUiI@J  
l After ... has been defined by ..., a carefully analysis is carried Sd\IGy{a  
out/performed to determine jqGo-C~  
l A number of factors such as ...need to be taken into consideration D d# SUQ  
before making the appropriate decision. " 26B4*  
l It should be noted that wEfz2Eq  
l It is important to point out that ... Iwt2}E(e  
l These considerations have heightened interest in the possibility of "dK|]w8  
providing ... k~jKJb-_  
'!fFI1s  
l We should stress the fundamental importance of the xx loC5o|Wh  
Chapter 5. Results. 4ljvoJ}xjr  
Advantages / Disadvantage YoF\ MT]W  
l One of the major advantages of this new measure of xx is that it lNaez3  
can be applied to the experimental study of V"7<[u]K|  
l One advantage of using a .. is the ease of preparing it. 8XYD L] I'  
l The xx system is versatile \ L9?69B~  
l It has a very fast decision making process wI@zPVY_i  
l All the algorithms involve mostly logical operations. uq|vNLW26  
l It can be easily and without additional cost implemented in a KO-Zz&2f  
microprocessor-based environment. Q+N7:o!;<b  
l It can reduce the waste of designing from scratch. TRk ?8  
l The advantages of using a xx to represent xx are the following: -Ap2NpZ"t  
l However, xx is not without its shortcomings. h{W$ fZc<  
l In most cases, the xxx shows an improvement over the existing dThn?  
xxx. + 9\:$wMN  
l Compared to the existing xx, the impacts of the xx are generally +Mk*{ A t  
reduced by 5% to 9%. ;/?Z<[B  
l The "best case" results shows a savings of 6% to 9%. ]^*_F  
l Most of the existing works based on xx approach can only -YzQ2#K  
recognize a xx . LsJs Q h  
l Most of the above methods are computational expansive and `P^u:  
limited to xx. Vq3]7l  
l Some other advantages of xx are the following: _[}G(<  
l The problem is the limitation of this method to a limited domain of Tn4W\?R  
parts. 9?u9wuH  
l It proved limited in application because it demanded precision in }g>dn  
system modeling that was impossible in practice. }b_R5U$@@  
l There are advantages to be gained in the structuring of costs and Bmx(qE  
benefits, the use of xx, Y|%anTP  
l The disadvantages of this method are also disadvantages of !dfS|BA]  
conventional xx approaches. qhV, u;\.  
g(-;_j!=  
l This combines the best features of both techniques %^a]J"Ydi8  
l Hopefully, this tool can be as the reference framework of for +"k.E x0:  
developing a xx platform, and helping the administration, marketing, $Cz1C  
and knowledge management activities in virtual communities. Y brx %  
Results A#v|@sul  
l An improvement on the result shown above can be made by based - *:p.(c  
on the data provided Q=d.y&4%  
l Discussion of these theories is beyond the scope of this review zb"rMzCH  
l Based on the information contained in this ~ A^E  
l The result can be categorized into nine classes I*^ 5'N'  
l The results are illustrated by an example ;M}itM  
l The experimental results for each xx time are reported in Table 2. $T"h";M)s  
l From the results obtained so far, it seem that `+roQX.p  
l Because of the inaccuracy of the ..., a conclusion cannot be drawn yOX&cZ[  
as {I4%   
l Although much effort has been made to., this reality is far from 8{R&EijC  
completion. *,"jF!C&[  
l The results indicate that the total benefits are higher than the ki\B!<uv  
total costs. 25aNC;J  
l Their results may then serve as guidelines for lower level models, :~vxZ*a  
less fuzzy and more detailed. j3 6,w[Y:  
Chapter 6. Conclusion J5O.*&  
l From the discussion, one may conclude that ... Dt W*n1Bt  
l Form the above discussion, the conclusion can be reached that K'x4l,rq  
l The conclusions drawn are also valid z(+&wa  
l In conclusion to this, it becomes obvious that the problem of xx B9YsA?hg  
lies not only in... 34z_+  
l We have attempted to introduce some concepts associated with a 0Y7$d`  
theory of +fM&su=wl  
xx based on fuzzy sets. $ K})Q3FNi  
l Considerable more work, hopefully, will be done in this area Q8;#_HE  
l A fuzzy set procedure is proposed to solve xx selection problems t\zbEN  
>W r$Y{  
interwoven with imprecise data ~F;CE"3A  
l Employing the compositional rule of inference, the assessment of }g>kpa0c  
the xx compatibility in achieving prescribed xx projectiles in any YJd8l>mz  
level of the hierarchy is made possible. ^00{Hd6  
l This paper has presented a theoretical and experimental study of :/6()_>bO  
the xx process and xx concept. RAV^D.  
l The experimental research results will hopefully serve as useful cJ . 7Mt  
feedback information for improvements for xx work. f3G1r5 x  
l The scope of this contribution was to introduce a xx method. s O=4IBE  
l In general, fuzzy sets theory provides an alternative foundation sm   
for xx analysis in a fuzzy environment. }z wX  
Future Research 09d9S`cS\  
l Thus, first extension of the approach could be, B!}BM}r  
l Present some cues for a further approach from Fuzzy Sets Theory oSY7IIf%L  
application to +"8}R~`!  
l Some improvements to the scheduling aspect of the model may paWxanSt  
be brought through additional levels in the hierarchy for more Yl~$V(  
detailed representation of the scheduling activity. M\9F:.t=  
Tables and Figures hsz^rZ  
l Figure 7-1 sketches these relationships. s]Gd-j  
l The graphical representation of these functions is shown in Figure #Ao !>qCE  
1. {E51Kv&_  
l The xx may be depicted as in Figure 1. =u=Kw R  
l Figure x shows the schematic diagram of the 59 <hV?  
l Figure 1 though 2 provide a ... that vd (?$  
l the architecture of this expert system for .... is illustrated in Figure ^H3m\!h  
2. Xwq]f :@V  
l Figure 2 gives the outline of an ... system @?Zf -.  
l Table shows the ] 8Tzr  
l as shown in Table 1 and 2 8z}^jTM  
l This concept is illustrated in Figure 2 O~PChUU*Y  
l At the top of Table xx are shown two blocks of data. TQc@lR!  
_TUm$#@Y`  
l Each table or matrix has constructs xx through xx as yMxTfR  
row-headings, $UvPo0{  
xx through xx as column-headings. UpfZi9v?W  
l A table of .. is developed and significant recommendations are fu4!t31  
made. #jA)>z\Q^  
CONJUGATION }mk>!B}=  
To Indicate Addition q3h' l,  
l additionally, again, also, and then, as can be easily understood, U>F{?PReA?  
besides, equally important, especially, finally, for the same reason, H}ZQ?uK;  
first, further, furthermore, in addition, last, likewise, moreover, next, u9Y3?j,oC  
second, third, too, evidently, obviously, roughly speaking, broadly %8r/oS  
speaking pe.QiMW{8  
To Indicate Cause and Effect 80;n|nNB  
l accordingly, as a result, consequently, for this reason, hence, in 0* F}o)n/m  
short, otherwise, then, therefore, thus, truly $,27pkwHeW  
To indicate Comparison %j+xgX/&  
l in a like manner, likewise, similarly , alternatively Eu,`7iQ?(  
To Indicate Concession rHz||jjU  
l after all, although this may be true, at the same time, even though, t ls60h  
even so , I admit, naturally, of course )rm4cW_  
To Indicate Contrast c#cx>wq9  
l and yet, at the same time, but, for all that, however, yet, in fact, in #07!-)Gv  
contrast, in the real life, in spite of, nevertheless, notwithstanding, ~Z)/RT/  
normally, on the contrary, on the other hand, still, traditionally, Um.q RZ?  
rather, unfortunately, j !H^-d}q  
To Indicate Time Relationships: 'LSz f/w  
after a short time, afterwards, as indicated earlier, as long as, as soon YY5!_k  
I)SG wt-  
as, at last, at length, at the moment, at that time, at the same time,  Mps5Vv  
before, earlier, currently, immediately, in the meantime, in recent mUoIJ3fv_,  
years, lately, later, meanwhile, often, of late, presently, recently, "Cz<d w]D  
soon, shortly, since, thereupon, temporarily, therefore, until, when, kg97S  
while ~d >W?A  
To Indicate Special Features or Examples: cr;`Tl~}s  
for example, for instance, incidentally, indeed, in fact, in other words,  aSutM   
in particular, in practice, specifically, that is, to illustrate, in this &[[K"aM1  
respect, theoretically, as mentioned before / above [g|Y7.j8  
To Indicate Summary: ,  X{>  
in brief, in conclusion, in short, in summary, on the whole, to X[yNFW}S2W  
conclude F7*wQ{~  
, in general, to summarize, to sum up, as a result, ultimately, \wvg,j=  
VERB PHASE U9hS<}<Ki  
l build a .. model p *w$:L  
l build up the key link 4,p;Km&  
l began a new era in ... 2}U!:bn(  
l can be regarded as / achieved / used to/for / found / obtained muON> ^MbC  
through 07v!Zj  
l can result in s#9Ui#[=h  
l carries out ... tasks *iA4:EIP  
l production information in order to simultaneously 8+Llx  
l contains all information necessary to describe  AnBJ(h  
l do not make use of production information Z~  
l deals with ZJW[?V\5=  
l end with failure 08bJCH  
l fetch the information from the model directly R\3VB NX.g  
l has great potential / yet to be resolved / spurred the "_UdBG  
development of / nuQ]8 -,  
been recognized as Cizvw'XDV  
l BE aimed at / built up / carried out by / essentially concerned t&q N:  J  
J5Z%ImiT^O  
with / considered to be the key technology / associated with each yM.IxpT#$  
feature of a compo y m,H@~  
site component / cable of / currently implemented for / X!hIwiA,t  
demonstrated by an example / finally reached / made equal to / 38ES($  
equivalent to / more suitable to / oriented to / interpreted as / B_`y|sn  
pointed out / potentially of great benefit in the complex task of / uE/T2BX*  
shown in / used to effectively guide the search N;oQ^B'  
l makes use of #hfuH=&oh  
l make up _Q%vK*n  
l meets the needs of real life production,/ the current demands h5_G4J{1  
placed upon it ^)!F9h+  
l must be justified @:0ddb71  
l point out OI1ud/>h  
l play an important role Qhi '') Q  
l relates to ]M>9ULQ  
l rely on B$3 ?K  
l satisfy the needs r~-.nb"P  
l determine the total requirements for the ... XKA&XpF  
l uses ... as a key to search for... G0 J4O!3  
l without relying on 3ya1'qUC  
l will be available/ performed/ overlooked hRI"y":zD  
NOUN PHASE _-!sBK+F  
l a basic technical function of +x? #DH-  
l a critical need *%w6 9#D  
l a key / principle feature of w~_;yQ  
l a substantial impact on .x`M<L#M(  
l an intensive review was conducted %<?0apO  
l an increasing need for expanding the application of .... fJ\sguZ  
l an important component / function / aspect / issue Xtz-\v#0o'  
l each rule is numbered in sequence s]T""-He  
l each of these involves Mypc3  
l for this calculation, it is necessary to define =1I#f  
l in the physical environment / integration of +X`V|E,no  
W"{v2xi  
l in the reality of situations where … ;!91^Tl  
l many aspects of e__@GBG  
l most past efforts have been spent on ... Q%/<ZC.Mz6  
l common sense to a well studied and documented technical field. mS#zraJn5  
l sources of additional information on ... are listed E^GHVt/.  
l systematic and rationally structured format _A<u#.yd  
l the basis on which a range of ...operations can be established is +,o0-L1D  
shown YY?a>j."a  
l THE basic philosophy / principles of / key element / general *5zrZ] ^  
hypothesis / candidate list of / concept of ... has attracted wide jENr>$$  
interest / function is concerned with / heart / impact / nature / role |/g W_;(  
/ task of / kernel functions ) \Y7&  
l the number of parts needed to  hjO*~  
l the above statement means that "#v=IJy&r  
l the output data is passed to wU#F_De)R:  
l the proposed method / underlying principle bX.ja;;   
l the recommendations made in this report, if implemented, should [Q\GxX.  
l this information resides in mzQ`N}]T:  
l this process is composed of ... different ... operation > 0{S  
l along with the use of 'Dvv?>=&  
l concerning general aspects of ZKg{0DY  
l due to AamV ms  
l for later use in generating..., ^Qu i H'  
l in turn, 7?B.0>$3>V  
l IT IS believed / noted / assumed / suggested / shown / quite >5R <;#8  
evident / appears / implies that / intended for / of no important to L< zD<M  
l it can be claimed/concluded that  5Z4- Z  
l it demonstrates the decisions required of ) BfT7{WN  
l it also provides information to .. Bl9jkq ]  
l it becomes essential to `mye}L2I  
l let ... be the probability that R3k1RE2c&g  
l once... is written, it is compiled into... B?$ "\;&  
l suppose it is observed that JQ :Ri  
l this is because IVr 2y8K  
bCZ g cN  
l this results in a IrMl:+t\  
l upon completion of the ... analysis, 3~e8bcb  
l when the knowledge is of mathematics or quantum physics, it will w&4~Q4  
also be 1<ro7A4hK  
recorded in books and papers GE|+fYVM-$  
l selection of rules for using the tools, for generating operation Y!6/[<r$~k  
plans, fQLt=Lrp  
is another matter of preference, since practice varies greatly. kY]W Qu  
l for the sake of convenience j@Qg0F  
l correct decision to be reach iJnU%  
l keeping the number of rules to a minimum. MxzLK%am  
l a good process plan will result exhibiting several characteristics:  Av0y?oGH  
l practical solutions E,n}HiAz7V  
l because of rather small job lot sizes KRJLxNr  
l Backward reasoning can be used to answer the question "should GRy-+#,b"  
milling tool be select" different level of knowledge in the realm of kP xa7  
process planning
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沙发  发表于: 2007-11-14   
Very useful, thank u!
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