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  $j (  $M $ # wgֳgֳ??6Slide Number Placeholder 5`P  j*   L $  ~rgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!drs/downrev.xmlDAK1FBCieۦE ZQ[{6&M$ 8}7 ;f YTmd,D gI@֫K:>j$6(-9"aZ75W$7 βmZMEkmq~l٫Yq*U=rw[j!SnW?PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!drs/downrev.xmlPKH$ '   dChapter 9 Contents (2)   $  ~`qgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!'jdrs/downrev.xmlDAK@Fa؍Sv[TEC4Y6.8}j8ƱIvp`z"DdcRpKNc$JTؗR%az[OIn;yeh8-KK0= f{|ns4il]U_ջN-i?ؿw5H^A L \PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!'jdrs/downrev.xmlPKH$'  XThe Rete Algorithm Knowledge Engineering CLIPS Backward Chaining in Expert Systems CYC YH<YY   ZX̙3___PPT10`+-gD' = @B D' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*$%(D' =-m6Bbox(in)*<3<*$D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*$%(D' =-6B'blinds(horizontal)*<3<*$D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*$)%(D' =-6B'blinds(horizontal)*<3<*$)D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*$)/%(D' =-6B'blinds(horizontal)*<3<*$)/D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*$/S%(D' =-6B'blinds(horizontal)*<3<*$/SD' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*$SW%(D' =-6B'blinds(horizontal)*<3<*$SW+p+0+$ ++0+$ +"# nf,N(  ,M , # pgֳgֳ??6Slide Number Placeholder 5`P  j*   Q ,  xPgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!c#Adrs/downrev.xmlDJ1EFl.j)BcN$C7^̗ɴ'g%Gʩ_*l% X.noX(w;X @ :ƮNojV~pAK/"?ޟI_FI'1vzQ; ,u*PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!c#Adrs/downrev.xmlPK@H$'   p"Rules for Knowledge Representation#"$#   ,  xmgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!Gdrs/downrev.xmlDQK0߅pd2Q QD_Tmz5uMR{4J0S%/wk`!U:KF Nn6)ۜ.EYؐcq*MudSwr`L\yܴ^%7'Mչ1/:>X" :^pq$$J^7*KHI7PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!Gdrs/downrev.xmlPK H$ '  IF& THEN Rules can be used to represent knowledge: IF it rains, then you will get wet IF A THEN B Can be expressed as: A B Here, A is called antecedent, and B is called consequent. Rules can also be recommendations: IF it rains, then you should wear a coat 3ZZ#Z)ZZZ3^  #)   B ,  t1??Line 4 P  ZX̙3___PPT10+i) Dd' = @B D' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*,%(D' =-6B'blinds(horizontal)*<3<*,D ' = @B%(Du ' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*,3%(D' =-m6Bbox(in)*<3<*,3D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*,3V%(D' =-m6Bbox(in)*<3<*,3VD>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*,V%(D' =-m6Bbox(in)*<3<*,VD>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*,%(D' =-m6Bbox(in)*<3<*,DN' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*,%(D' =-m6Bbox(in)*<3<*,D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*,%(D' =-m6Bbox(in)*<3<*,+p+0+, ++0+, +"%"   0m (  0M 0 # Њgֳgֳ??6Slide Number Placeholder 5`P  j*   Q 0  ~`gֳgֳ?Rectangle 1026"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!=tdrs/downrev.xmlDQK0C/[]6dXU~ܵeMRإ&Ɥ|gl&L#|^0nWs K І0%~f2;[1^\<b5v&=8жRj !+.O.?Xnc^.VvJBc:Nr`MPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!=tdrs/downrev.xmlPK @H$'   kRule Based Production Systems$   0  ~gֳgֳ?Rectangle 1027"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!Ddrs/downrev.xmlDQK0C\1ˆ(CTh7msvk5p[oٕ`k#;8w+`ΣM&rެ1f]K߰.GCι[Rf  }$ɸNLJziJ@qjy+B#style.visibility<*0%(D' =-6B'blinds(horizontal)*<3<*0D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0%(D' =-m6Bbox(in)*<3<*0D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0%(D' =-m6Bbox(in)*<3<*0D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0%(D' =-m6Bbox(in)*<3<*0D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0%(D' =-m6Bbox(in)*<3<*0D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0(%(D' =-m6Bbox(in)*<3<*0(+p+0+0 ++0+0 +" r j 4R (  4M 4 #  igֳgֳ??6Slide Number Placeholder 5`P  j*   U 4  xrgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!drs/downrev.xmlDQK0C/AltX >^IJ|9|oIg#9+a>+ml+mw"Z$a K@c[!6(A8F0s7s-Wnz.l~8VSs!ӫ.}QM蹔WXjϿU) X.v||"y Y0fUPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!drs/downrev.xmlPK@H$ '   s%Forward Chaining (Data Driven System)&%$&  h 4  xgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!|drs/downrev.xmlDQK0Co.]ucˆ(0 |mMR>;|ݨ;v!kg 02w+`>YC&^_m0v09]P1>C*>W4dt8Dx$K1AaOϊ/jWǒ>r*jRBތO,y_Ի&uz69@N@QPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!|drs/downrev.xmlPKH$'  +Forward chaining is a reasoning model that works from a set of facts and rules towards a set of conclusions, diagnoses or recommendations. When a fact matches the antecedent of a rule, the rule is triggered, then the rule is fired, and the conclusion of the rule is added to the database of facts. *++,   ZX̙3  ___PPT10 +a#oDF ' = @B D ' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4%(D' =-m6Bbox(in)*<3<*4D' = @B%(D' = @B%(DF' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4%(D' =-u6Bdiamond(in)*<3<*4D' = @B%(D' = @B%(DF' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4*%(D' =-u6Bdiamond(in)*<3<*4*+p+0+4 ++0+4 +";   8 (  8M 8 # psgֳgֳ??6Slide Number Placeholder 5`P  j*   . 8  x tgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!Qdrs/downrev.xmlDQK0C/Җ!k]6d86~m&)IoA:Ɥ|g|#XٙV~4{kHD֫%V^̑:,AP a8"~f2;Y1Z.^\Ȳ3A@E͹^ofQt?ʅO?~)w,PEY΁vӗ} ' &ݤ |PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!Qdrs/downrev.xmlPKpH$'   MExample$  ; 8  xigֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!cZdrs/downrev.xmlDN0DHuQ'TmZ!VM|vd&{,z;ꎝ,F5f4;kHDˋ5s!(@ZF?=bt ϒd5&>(QQ}*N۷}E_|*w*}F!@c?dW) Ke\+ 􁜀(u*PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!cZdrs/downrev.xmlPKPH$ '  XConsider the rules that is used to control an elevator in a 3-story building: Rule 1: IF on the first floor and button is pressed on first floor THEN open door Rule 2: IF on first floor AND button is pressed on second floor THEN goto second floor   ZX̙3g._.___PPT10?..'@X+D-' = @B D^-' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DF' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8%(D' =-u6Bdiamond(in)*<3<*8D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8N%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8ND' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8ND' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8NV%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8NVD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8NVD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8V%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8VD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8VD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*8%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*8D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*8+p+0+8 ++0+8 +".>   < (  <M < # tgֳgֳ??6Slide Number Placeholder 5`P  j*   . <  xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!?drs/downrev.xmlDQK0C/⒖!.2 ª_IJ|˹||u2=ɇY L#8Vv,D {gID֫ˋ%Vʝ:,ClPq8&a9;:o0ӷ\yI)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!/Cdrs/downrev.xmlDQK0C\1PD_tz5ݚ$qm}YC&ެ1v0]а1>G*>׊4dkt8D"I25AaOϊK_tY-?}l**}F!f X11_ԻHI6U@N@QPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!/Cdrs/downrev.xmlPKpPH$ '  Rule 3: IF on first floor AND button is pressed on third floor THEN go to third floor Rule 4: IF on second floor AND button is pressed on first floor AND already going to third floor THEN remember to go to first floor later & , & Z   ZX̙3//___PPT10/.(~#+ wD(/' = @B D.' = @BA?%,( < +O%,( < +D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<B%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<BD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<BD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<BY%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<BYD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<BYD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<Ya%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<YaD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<YaD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<at%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<atD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<atD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<t%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<tD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<tD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*<D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*<+p+0+< ++0+< +"n TL@4(  @M @ # ugֳgֳ??6Slide Number Placeholder 5`P  j*    @  x0vgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!6,drs/downrev.xmlDQK0Co.eeC2_ }m&I\o؃>;|ͨ;v&[k4%0H!yجVK;ehXBskEdbwNc5\:"\w|$ؚgEO:-o޿l**V7#@co+/W)`>${`TV9Q0FU_PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!6,drs/downrev.xmlPKH$ '  The example only listed a subset of the rules (partial rules), we can keep doing the list of the rules to finish the control. How do you finish the list?   ZX̙3___PPT10.(.w+Ewy^D&' = @B D' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*@%(D' =-m6Bbox(in)*<3<*@D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*@%(D' =-m6Bbox(in)*<3<*@+8+0+@ +"}  D (  DM D # vgֳgֳ??6Slide Number Placeholder 5`P  j*   H D  ~xgֳgֳ?Rectangle 1026"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!Xydrs/downrev.xmlDQK0C/UZ )k.r.9j&wVr!mm'㽾.V,I)f}~JĎe J1d0,H6g |+ 7/{4o#yLuz|+e"vqWz)Ez)ᦫS Qwyic%dUPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!Xydrs/downrev.xmlPK@H$'   aConflict Resolution$   D  ~@gֳgֳ?Rectangle 1027"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!~.drs/downrev.xmlDj0D9!ǍBK-'d$5t9pٍcWrF|#SYٚF0nZE P!RlO&vuC$Yq {zQT]- ?%]~K>8k9 04V>E5c*]+s􁜀(u*/PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!~.drs/downrev.xmlPKH$ '  rSometimes more than one rule will fire at once, and a conflict resolution strategy must be used to decide which conclusions to use. One strategy is to give rules priorities and to use the conclusion that has the highest priority. Other strategies include applying the rule with the longest antecedent, or applying the rule that was most recently added to the database. |rZZn&s   ZX̙3___PPT10 +D\ ' = @B D ' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*D%(D' =-6B'blinds(horizontal)*<3<*DD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*D%(D' =-m6Bbox(in)*<3<*DD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*D%(D' =-m6Bbox(in)*<3<*DD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Dq%(D' =-m6Bbox(in)*<3<*Dq+p+0+D ++0+D +"G. _ W 0H? (  HM H # pgֳgֳ??6Slide Number Placeholder 5`P  j*   . H  xygֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!t9Ydrs/downrev.xmlDQK0C/).2U}6wmY$v70*Ɥ|gl&L#cs?5$a"Ke@c Ɨ( a(9uKdRwNcH5\9<'y.D5v&=8кTh !n{Wob7/~fR'`b>nDg( `:u@IHI7_PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!t9Ydrs/downrev.xmlPK p@H$'   MExample$  | H  x{gֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!MZEdrs/downrev.xmlDQK0߅p\!ueC&2_&z5MRlm}[Cf.6K;nehXskEdbwNc5\:#\|$ؚp+Z@Ex{ҷj~z}h cV+QR*͒0W@N@QPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!MZEdrs/downrev.xmlPK PH$ '  TConsider the following rules: IF it is cold THEN wear a coat IF it is cold THEN stay at home IF it is cold THEN turn on the heat Obviously, one antecedent can trigger three rules here. We might need to give the rules priorities to decide which one to pick first. Or, we can add more conditions to make some antecedents longer than others.UPUU   ZX̙3 x ___PPT10X .)+D' = @B Dw' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*H%(D' =-6B'blinds(horizontal)*<3<*HD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*H%(D' =-m6Bbox(in)*<3<*HD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*H,%(D' =-m6Bbox(in)*<3<*H,D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*H,=%(D' =-m6Bbox(in)*<3<*H,=D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*H=L%(D' =-m6Bbox(in)*<3<*H=LD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*HL^%(D' =-m6Bbox(in)*<3<*HL^D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*H^l%(D' =-m6Bbox(in)*<3<*H^lD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Hl%(D' =-m6Bbox(in)*<3<*HlD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*H %(D' =-m6Bbox(in)*<3<*H D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*H U%(D' =-m6Bbox(in)*<3<*H U+p+0+H ++0+H +"/. ? 7 @L (  LM L # }gֳgֳ??6Slide Number Placeholder 5`P  j*   / L  xcgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!?adrs/downrev.xmlDQK0C/ѭ.2uܵeMRإ>{./@ηH&ʪhv֐<,Ws,= eY_&W iۓI:!EWs\ckB=巖:~i.ywM&M|y(AUI̒i3~Vr%&UPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!?adrs/downrev.xmlPKP@H$ '   MExample$  [ L  x gֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!"drs/downrev.xmlDQK0C\!seC6wM&)I\oAv4Fvv,D ;gID5 K 6(A眇Z0w=7S W7_[4>FBEǡӰʽ^Qʛ,}&+QJ"TV"y I0&UPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!"drs/downrev.xmlPK H$ '  z4By applying priorities: IF patient has pain THEN prescribe painkillers priority 10 & IF patient has chest pain THEN treat for heart disease priority 100    ZX̙3  ___PPT10` .*%+dD' = @B D' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*L%(D' =-m6Bbox(in)*<3<*LD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*L%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*LD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*LD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*L-%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*L-D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*L-D' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*L-T%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*L-TD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*L-TD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*LTV%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*LTVD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*LTVD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*LVp%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*LVpD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*LVpD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Lp%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*LpD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*Lp+p+0+L ++0+L +"9( q i PPQ (  PM P # 0gֳgֳ??6Slide Number Placeholder 5`P  j*   _ P  xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!;*drs/downrev.xmlDQK0C/å-.2ª{kʚ$K}I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!ДYdrs/downrev.xmlDj0D١5ƍBn,'d$Տ]3lvHwHW 02iw90H! ym6XH;*,B/P a(8"~e2;Y1Z.N{NkL|P8ГR}k]cM)[JYۛy,$ǗEK4O`v,r`ԍ?PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!ДYdrs/downrev.xmlPKPH$ '  |RIF patient has pain THEN prescribe painkiller & IF patient has chest pain AND patient is over 60 AND patient has history of heart conditions THEN take to emergency room    ZX̙3`X___PPT108.*+D' = @B DW' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*P%(D' =-6B'blinds(horizontal)*<3<*PD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*P%(D' =-m6Bbox(in)*<3<*PD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*P.%(D' =-m6Bbox(in)*<3<*P.D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*P.0%(D' =-m6Bbox(in)*<3<*P.0D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*P0J%(D' =-m6Bbox(in)*<3<*P0JD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*PJa%(D' =-m6Bbox(in)*<3<*PJaD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Pa%(D' =-m6Bbox(in)*<3<*PaD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*P%(D' =-m6Bbox(in)*<3<*P+p+0+P ++0+P +"% `T (  TM T # @gֳgֳ??6Slide Number Placeholder 5`P  j*   @ T  ~gֳgֳ?Rectangle 1026"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!@drs/downrev.xmlDQK0C/q.R>f]S$%] >÷\Gݓ01 h+;rls >#Eo rzu}ñ-I A0F~f4;YEHѵT:qIpӌGEg҃ s9 q_Y﬚ީ97 Hꫬ_T%9dl/^NCLIPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!@drs/downrev.xmlPK@H$ '   X Meta Rules $   ! T  ~gֳgֳ?Rectangle 1027"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!9drs/downrev.xmlDQK0C\kˆ(Sh7k5II{p[oGݱ 9Z#`1OlM#πFbg vs{\t)C"s_+'uC$Yq {zQT-sy4r(l|~h cKk)`Y>U@N@QPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!9drs/downrev.xmlPKH$ '  :The rules that determine the conflict resolution strategy are called meta rules. Meta rules define knowledge about how the system will work. For example, meta rules might define that knowledge from Expert A is to be trusted more than knowledge from Expert B. This kind of knowledge is called meta knowledge. It is knowledge about knowledge. Meta rules are treated by the system like normal rules, but are given higher priority. ZZZ@_   ZX̙3*"___PPT10+1+%Dv' = @B D1' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*T%(D' =-m6Bbox(in)*<3<*TD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*TQ%(D' =-m6Bbox(in)*<3<*TQD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*TQ%(D' =-m6Bbox(in)*<3<*TQD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*T%(D' =-m6Bbox(in)*<3<*TD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*T4%(D' =-m6Bbox(in)*<3<*T4D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*T4V%(D' =-m6Bbox(in)*<3<*T4VD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*TV%(D' =-m6Bbox(in)*<3<*TV+p+0+T ++0+T +"o  f ^ pXF (  XM X # gֳgֳ??6Slide Number Placeholder 5`P  j*   H X  ~@gֳgֳ?Rectangle 1026"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!řCdrs/downrev.xmlDQK0C/.2e>^IJ|s;|e]654mh$v֐<,s,=- Uh1D*d׊4ɤhƐktxNpݱؚT}k/}\ǧ|UT|3QS!dbۿr>+yrܢKM?PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!řCdrs/downrev.xmlPK@H$ '   _Backward Chaining$  i X  ~gֳgֳ?Rectangle 1027"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!C drs/downrev.xmlDQK0Co.R!苃v_o[$_Af=;5ELcegZ]4{kHL6ҎsZ!(@0FFbt-=_&I5v&>(EQs~N羦qjzfz~h c(_I?s:YDU/PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!C drs/downrev.xmlPKH$ '  &In cases where a particular conclusion is to be proved, backward chaining can be more appropriate. Works back from a conclusion towards the original facts. When a conclusion matches the conclusion of a rule in the database, the antecedents of the rule are compared with facts in the database. *&&'   ZX̙3___PPT10y+dD' = @B D' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*X%(D' =-m6Bbox(in)*<3<*XD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Xc%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*XcD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*XcD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Xc%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*XcD' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*XcD' = @B%(D0' = @B%(D' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*X%%(D' =+4 8?\CB#ppt_xBCB#ppt_xB*Y3>B ppt_x<*X%D' =+4 8?dCB1+#ppt_h/2BCB#ppt_yB*Y3>B ppt_y<*X%+p+0+X ++0+X +" \(  \M \ # gֳgֳ??6Slide Number Placeholder 5`P  j*   9 \  xgֳgֳ?Rectangle 2   m'Comparing Forward and Backward Chaining(($(   \  xgֳgֳ?Rectangle 3  Choose forward or backward chaining will depend on the specific problems. Sometimes backward chaining is much faster and sometimes forward chaining is much faster. Sometimes, they are about the same.    ZX̙3___PPT10i.a+D=' = @B +"2  `(  `M ` # 0gֳgֳ??6Slide Number Placeholder 5`P  j*   . `  xPgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!!;drs/downrev.xmlDQK0C/.2 ª_IJ|9|oNg#9+ `d:Jx.Va,I(zuyJ=Xǖe J1d0@6wG }˕sB̹m45Hx6=E*i7*=>~w'_+ e)y 츛|"y Y0fUPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!!;drs/downrev.xmlPK@H$'   MExample$   `  x0gֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK! drs/downrev.xmlDQK0Co.m'eeCq/ *4wm]$7sv?]*F7r5$`! e'Sҥ - Ѕ0#~eG2;Y1ZN%I5&>t8SG͹O:ojI_ST.}7@sᣖ/dYk`E^9Q0FUPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-! drs/downrev.xmlPK H$ '  4<Rules: 1. A  B C 2. A B 3. C  D E 4. B  E  F G 5. A  E H 6. D  E  H I Facts: 1. A 2. B 3. F Goal: to prove H.                                 B `  t1??Line 4 B `  t1??Line 5```B `  t1??Line 6 B `  t1??Line 8`  ` B  `  v1??Line 10 @ B  `  v1??Line 110  0  ZX̙3 x ___PPT10X .`d1+D' = @B Dw' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*`%(D' =-6B'blinds(horizontal)*<3<*`D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`%(D' =-m6Bbox(in)*<3<*`D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`%(D' =-m6Bbox(in)*<3<*`D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`$%(D' =-m6Bbox(in)*<3<*`$D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`$4%(D' =-m6Bbox(in)*<3<*`$4D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`4H%(D' =-m6Bbox(in)*<3<*`4HD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`HY%(D' =-m6Bbox(in)*<3<*`HYD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`Ym%(D' =-m6Bbox(in)*<3<*`YmD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`m%(D' =-m6Bbox(in)*<3<*`mD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*`%(D' =-m6Bbox(in)*<3<*`+p+0+` ++0+` +"(   d (  dM d # `gֳgֳ??6Slide Number Placeholder 5`P  j*   @ d  xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!MZdrs/downrev.xmlDQK0C/.2U}6wMY$v_A*Ɥ|g|#XٙV5$`"+i@cZ W(@0TFF?Rt- {^dٜkLzP8ZQs!n˾X.Nߩ\ۛ,P b_V (I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!w̦Qdrs/downrev.xmlDQK0Co.mY!e6wM]$70f=;5ELcegZ.5$`& iGSҹ - B }H_؁Li 1KcgI;9U?Z@EPJ_Iۛ X)]]?Իei?;͵d>nTPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!w̦Qdrs/downrev.xmlPK H$ '  Facts Rules Triggered Rule Fired A, B, F 1, 2 1 A, B, C, F 2 2 A, B, C, D, F 3 3 A, B, C, D, E, F 4, 5 4 A, B, C, D, E, F, G 5 5 A, B, C, D, E, F, G, H 6 Stop    ZX̙3`X___PPT108.+D' = @B DW' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*d%(D' =-6B'blinds(horizontal)*<3<*dD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*d;%(D' =-m6Bbox(in)*<3<*d;D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*d;|%(D' =-m6Bbox(in)*<3<*d;|D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*d|%(D' =-m6Bbox(in)*<3<*d|D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*d%(D' =-m6Bbox(in)*<3<*dD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*d8%(D' =-m6Bbox(in)*<3<*d8D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*d8s%(D' =-m6Bbox(in)*<3<*d8sD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*ds%(D' =-m6Bbox(in)*<3<*ds+p+0+d ++0+d +"z(   h (  hM h # gֳgֳ??6Slide Number Placeholder 5`P  j*   : h  xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!drs/downrev.xmlDAK1!ElAl)صz7M$qz-Vtl Zg%L'0Sm$?63`!U9KF Z^^,Tlw4TabCt}y5 דy19MEQ

I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!+drs/downrev.xmlDn0D֭]q()!T6TJu{_؎l$Er=]ILeecja4[kHH֫ۛ%f&Kj!g(@eJF?؝bt5-Od56&>(MQu.~΋Pw?w3@C6WR@'`tr`ԍWWPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!+drs/downrev.xmlPK0 H$ '  Facts Goal Matching Rules A, B, F H 5 A, B, F E 3 A, B, F C, D 1 A, B, C, F D 2 A, B, C, D, F Stop This specific example has made us use 1 rule less than forward chaining.     ZX̙3`X___PPT108.0+D' = @B DW' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*h%(D' =-6B'blinds(horizontal)*<3<*hD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*h8%(D' =-m6Bbox(in)*<3<*h8D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*h8o%(D' =-m6Bbox(in)*<3<*h8oD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*ho%(D' =-m6Bbox(in)*<3<*hoD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*h%(D' =-m6Bbox(in)*<3<*hD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*h%(D' =-m6Bbox(in)*<3<*hD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*hE%(D' =-m6Bbox(in)*<3<*hED' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*hE%(D' =-m6Bbox(in)*<3<*hE+p+0+h ++0+h +"` wolW(  lM l # pgֳgֳ??6Slide Number Placeholder 5`P  j*   F l  ~gֳgֳ?Rectangle 1026@   t&The Architecture of Expert Systems (1)'&$'   l  ~`gֳgֳ?Rectangle 1027`   An expert system uses expert knowledge derived from human experts to diagnose illnesses, provide recommendations and solve other problems. *   l  ~A ?1?Object 10280 Bi  ZX̙3y___PPT10Y+D=' = @B +" n f pN (  pM p #  gֳgֳ??6Slide Number Placeholder 5`P  j*   [ p  ~gֳgֳ?Rectangle 1026"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!drs/downrev.xmlDQK0C/Anِp(=k$Kx|og#:Y2`HU%0$)[BzXnoRB{в!_I:73; d!Er%Mϋ,{Fvp9?FؔG?\03a^P9ަ^N@$ݤ | PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!drs/downrev.xmlPK@H$ '   t&The Architecture of Expert Systems (2)'&$'  ^ p  ~gֳgֳ?Rectangle 1027"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!%7drs/downrev.xmlDQK0Co.9!З mk5II{p[mFݱ 9Z# %V/K`>YC&Yެ0v09]а1>C*>׊4hkt8D}T*}F!`?ޕZ>y>?SZDUPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!%7drs/downrev.xmlPK`H$ '  vKnowledge base: database of rules (domain knowledge). Explanation system: explains the decisions the system makes. User Interface: the means by which the user interacts with the expert system. Knowledge base editor: allows the user to edit the information in the knowledge base. (   ZX̙3 ___PPT10+1+%DV' = @B D' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*p%(D' =-m6Bbox(in)*<3<*pD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*p6%(D' =-m6Bbox(in)*<3<*p6D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*p6s%(D' =-m6Bbox(in)*<3<*p6sD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*ps%(D' =-m6Bbox(in)*<3<*psD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*p%(D' =-m6Bbox(in)*<3<*p+p+0+p ++0+p +" : 2 t (  tM t # gֳgֳ??6Slide Number Placeholder 5`P  j*   B t  xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!KVdrs/downrev.xmlDQK0C/R N)k6|9|oIg#9+a6Nu.Va,I)f}~Jhc2Ć %h2n c`gƁSe$<i^mY|?^JyyEJ==+Q{%7(OߩH^B̺YPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!KVdrs/downrev.xmlPK @H$'   bExpert System Shells$  C t  xgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!1*#drs/downrev.xmlDQK0Co.eCv_oIJ_oAn2=; lTg[ M,D {gILvˋ ʍs[ 6(A8Fp7S-W7=_ qMzԜ/#S~;9fs˧zjzipE* +-\N"y I0&UPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!1*#drs/downrev.xmlPKH$ '  bThe part of an expert system that does not contain any domain specific or case specific knowledge is the expert system shell. A single expert system shell can be used to build a number of different expert systems. An example of an expert system shell is CLIPS. *   ZX̙3___PPT10 +D\ ' = @B D ' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*t%(D' =-6B'blinds(horizontal)*<3<*tD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*t~%(D' =-m6Bbox(in)*<3<*t~D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*t~%(D' =-m6Bbox(in)*<3<*t~D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*t%(D' =-m6Bbox(in)*<3<*t+p+0+t ++0+t +"!"   x (  xM x #  gֳgֳ??6Slide Number Placeholder 5`P  j*   B x  xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!5drs/downrev.xmlDQK0C/U0.2:=6wMY$oA/͗td@ZgL' ک6_Us`RPņd cKJC0q=ڜ727Tyypтgjdks=4bi>լ`<郞 q^_DLy/|_V (yi3~VedU.~PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!5drs/downrev.xmlPK@H$ '   `The Rete Algorithm$   x  xЫgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!drs/downrev.xmlDN0D"kԖPB' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x%(D' =-m6Bbox(in)*<3<*xD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x6%(D' =-m6Bbox(in)*<3<*x6D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x6%(D' =-m6Bbox(in)*<3<*x6D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x%(D' =-m6Bbox(in)*<3<*xD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x%(D' =-m6Bbox(in)*<3<*xD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*xe%(D' =-m6Bbox(in)*<3<*xe+p+0+x ++0+x +"   | (  |M | # gֳgֳ??6Slide Number Placeholder 5`P  j*   E |  xpgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK! drs/downrev.xmlDQK0C/U.R+U}6wmY$v7sjuFrF|&L#}{5$a" se@c ( a9uKdRwNcH5\9<'y&ؙ@EKCƗXVN'iR^_'`bqQRIDvM_S􁜄$t*PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-! drs/downrev.xmlPK@H$ '   cKnowledge Engineering$  % |  xжgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!k+drs/downrev.xmlDQK0Co.]qseCvC}m&)I\o؃>;|{v";kg02iw7+`>[C"yn./XH;NUhY_PpEdRwNcHѵ\:\<ϲ%ؙpGEͱO:n5X8~|gԫgbk} ' &ݤ | PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!k+drs/downrev.xmlPKH$ '  DA knowledge engineer takes knowledge from experts and inputs it into the expert system. A knowledge engineer will usually choose which expert system shell to use. The knowledge engineer is also responsible for entering meta-rules. *ZZ   ZX̙3  ___PPT10 +1+%DF ' = @B D ' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|%(D' =-m6Bbox(in)*<3<*|D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|X%(D' =-m6Bbox(in)*<3<*|XD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|X%(D' =-m6Bbox(in)*<3<*|XD' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|%(D' =-m6Bbox(in)*<3<*|+p+0+| ++0+| +"s j(  M  # gֳgֳ??6Slide Number Placeholder 5`P  j*      x`gֳgֳ?Rectangle 2@   /CLIPS     xPgֳgֳ?Rectangle 3   RCLIPS is C Language Integrated Production System  an expert system shell. CLIPS uses a LISP-like notation to enter rules. &}}~     xA ?1?Object 4`  ZX̙3y___PPT10Y+D=' = @B +"   (  M  # gֳgֳ??6Slide Number Placeholder 5`P  j*      xgֳgֳ?Rectangle 2   M#Backward Chaining in Expert Systems$  "   xpgֳgֳ?Rectangle 3  VBackward chaining is often used in expert systems that are designed for medical diagnosis: For each hypothesis, H: If H is in the facts database, it is proved. Otherwise, if H can be determined by asking a question, then enter the user s answer in the facts database. Hence, it can be determined whether H is true or false, according to the user s answer. Otherwise, find a rule whose conclusion is H. Now apply this algorithm to try to prove this rule s antecedents. If none of the above applies, we have failed to prove H. Usually backward chaining is used in conjunction with forward chaining. vsZZIZZ[cH  X   ZX̙3y___PPT10Y+D=' = @B +"   0 (  M  # gֳgֳ??6Slide Number Placeholder 5`P  j*      xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!3drs/downrev.xmlDQk0F2fbV 7l X&)IVr.,Qwl [k$L'ʪNs4 ;kHH֫%́2,I/PBB_p4$vNcHrxKrLؚ`Ok%|q&/?n_J_U;ZYgת@NB L _PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!3drs/downrev.xmlPK@H$'   -CYC  E   xpgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!l"]idrs/downrev.xmlDQK0Fp߶t*ˆ(/ڍz5uMRlm}8;v%[k, 02io h$v֐+B#style.visibility<*%(D' =-6B'blinds(horizontal)*<3<*D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*!%(D' =-m6Bbox(in)*<3<*!D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*!%(D' =-m6Bbox(in)*<3<*!D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-m6Bbox(in)*<3<*+p+0+ ++0+ +" @(  M  # gֳgֳ??6Slide Number Placeholder 5`P  j*      x gֳgֳ?Rectangle 2PP   R What is CYC? $      xgֳgֳ?Rectangle 3  CYC is the name of a very large, multi-contextual knowledge base and inference engine, the development of which started at the Microelectronics and Computer Technology Corporation (MCC) in Austin, Texas during the early 1980s.    ZX̙3___PPT10i.+D=' = @B +" P(  M  # @gֳgֳ??6Slide Number Placeholder 5`P  j*      xЕgֳgֳ?Rectangle 2@   ICYC$     x0gֳgֳ?Rectangle 3  Over the past eleven years the members of the CYC team have added to the knowledge base a huge amount of fundamental human knowledge: facts, rules of thumb, and heuristics for reasoning about the objects and events of modern everyday life.    ZX̙3___PPT10i.p+D=' = @B +"!# yq`Y(  M  # Pgֳgֳ??6Slide Number Placeholder 5`P  j*   ,   xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!bdrs/downrev.xmlDQK0߅p-]nec CA\U5eMRإ>{.[onYO72`d*+S x;LW|@# aݬjNԗf b|T]i3ۑI:!EWsyqI ;+.C|x9;O\q s׿u|X$yB HTo~PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!bdrs/downrev.xmlPKH$'   ICYC$     xgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!drs/downrev.xmlDQK0߅pQ(z5uMR>;|ݨ;v![k450H!ymgW̥LA24,BQ 9"~a{2;Y1.;%ɊklM|Pӣ\~k'׷oNJ޿TTTB\@c7+QR@/)TV9Q0FUPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!drs/downrev.xmlPKH$ '  nCYC is an attempt to do symbolic AI on a massive scale. It is not based on numerical methods such as statistical probabilities, nor is it based on neural networks or fuzzy logic. All of the knowledge in CYC is represented declaratively in the form of logical assertions. CYC presently contains approximately 400,000 significant assertions, which include simple statements of fact, rules about what conclusions to draw if certain statements of fact are satisfied (true), and rules about how to reason with certain types of facts and rules. New conclusions are derived by the inference engine using deductive reasoning. oPoo   ZX̙3@8___PPT10.i +D|' = @B D7' = @BA?%,( < +O%,( < +D' = @B%(D' = @B%(DT' =A@BBB B0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-6B'blinds(horizontal)*<3<*D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*9%(D' =-m6Bbox(in)*<3<*9D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*9%(D' =-m6Bbox(in)*<3<*9D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-m6Bbox(in)*<3<*D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-m6Bbox(in)*<3<*D' = @B%(D' = @B%(D>' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*o%(D' =-m6Bbox(in)*<3<*o+p+0+ ++0+ +"c"   p (  M  # gֳgֳ??6Slide Number Placeholder 5`P  j*   ,   xgֳgֳ?Rectangle 2"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!Bdrs/downrev.xmlD]K0CxoKW?(uPMyה5IIb{zy8̗Qwl [k̦02ih$v֐<,s,= UhX_B_rkEdRwNcH5\:<'xe\ck҃ž֊SquQf4| q}W?VvWR@wk} ' &ݤ |PK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!Bdrs/downrev.xmlPK@H$ '   ICYC$     xgֳgֳ?Rectangle 3"PK![Content_Types].xml|N0 HC+jS8 @:Q۸ ??\o<7p]V޷O(I'6E=, ){Ō4>I)q7UuDހǏ)}nL"Mᴸ&g0eSA)΄2';2 WYu7{ɯΒzŘqFrj9K*(]mOlPK!Z,[ _rels/.relslj0 ``t_Pƈ[>,dgzjǎ?I'f#®Pb-\/Ƿ0Z]nLnp__3.iJV KQBiDžrL,Vʌ/7р4`ANar+m;E/'3U Aںv83/PK!pf"drs/downrev.xmlDQK0Co.mFˆ(/ x5uMRް}nTPK-![Content_Types].xmlPK-!Z,[ _rels/.relsPK-!pf"drs/downrev.xmlPK  H$ '  Who is doing CYC? Much of the CYC work has been done at the Microelectronics and Computer Technology Corporation in Austin, Texas. As of the First of January in 1995, a new independent company named Cycorp has been created to further the work done on the CYC project. Cycorp continues to be based in Austin, Texas. The development of CYC has been supported by several organizations, including Apple, Bellcore, DEC, DoD, Interval, Kodak, and Microsoft. 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