Challenges in Building Large-Scale Information Retrieval Systems [pdf]

%PDF-1.3 %????????? 4 0 obj << /Length 5 0 R /Filter /FlateDecode >> stream x??Mo?0????19T1?e?64]?;????O?\?c?? ???'β?Y?(??Cj?'???F???f;????>/Ou??l۾n$?2!?-????????Je???W??Ʌ??B?7t?????m??OV??I??EY??=??/f%V?y????#??/u??*|̇??슼?x??~h?C?wX#{??,?d?VvF?S ?R\)????????????::??$iAҀ??t?i??Y?v #RƦ6?-?"?H?????]J?lN??L??VF??=???2??X=?r?aaU????ߐ=?P?r??`?H?v\7s]?}_1?{?4??8G:7??J?{??E3???-??R?S? )g:B?;?ٗ?j A}??_???Է??P?????P?ʥr?H?*a?䠴?z???zn?ɡP???v?u?wx?ҡ endstream endobj 5 0 obj 447 endobj 2 0 obj << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 720 540] /Annots 14 0 R >> endobj 6 0 obj << /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] /ColorSpace << /Cs2 8 0 R /Cs1 7 0 R >> /Font << /F1.0 9 0 R /F2.0 10 0 R >> /XObject << /Im1 11 0 R >> >> endobj 14 0 obj [ 15 0 R 16 0 R 17 0 R 18 0 R ] endobj 11 0 obj << /Length 12 0 R /Type /XObject /Subtype /Image /Width 305 /Height 115 /ColorSpace 19 0 R /Interpolate true /BitsPerComponent 8 /Filter /FlateDecode >> stream x?][ٲ?Z?1?h8H?1??"?N???L?s?L?q??}???k??ݼ5N??I??7Aq?]{???U???o8?"0D`???!C?"0D`???!Cn???? ?????}????????.?+??????W_??x17.?߿r???F?4#??m? ~=?U???z~?k???,?hk|????_w??0#??c????幹???ٹ?????Ń???/???HE?@?x??뛻w?A??r???????????Ĉ?ӳs my????Fo}͋?f?z??@,??>?c???????Hx?Z=?=l?W? nB0[????|͛?@*? X?Wq>?ň١?6y?7u??p?N??íâ???5?a`5[Z???? ܮ?p??4sV??? a?Q?0?3??????Zo?*?0԰[?3@?=?e?z?2X???M ??c??k$?h?m??bH??q??9Ks 7??P?>& ?4???߂X?K???fQ?JP*b?6F4M%?QN$???K??j?? N_`??ž??pb&?T*??Q? ^?h? ?&^??@?V????wS>3??Ak؏?a~???S?W&md???+_f?] k \?j(o-?vp؍R?o)_f?0>??-?t????`?`Yj 58@?7E??6c??????b?????wa? ??( ?2?D+???|?dE"?{??????ԣ?~?0 +?????M?6??x?~?p/•EB?1??F?O?!E[?+??? ?|?<?E (u?-xr????΍$qx)??1ӗԞ ???WBV?7?`?Mw 3?????7?a[4?D?ÈB?`?}I?μ?>???q1I`:H?????*,?,?9???y@?d???????o?(?2?r ق?8xyB????Q?z????D???$пQ?z?X<~" C?)?cdI9e?L??9?:??L+?:?D??"+?: ?g?~?уG????K5??????r?~?o=?t?? ??Dчw^?={W?P?G?}˽ȿ~??_???g?O>??y?,(=,R????>?s?"????ʃ{????{?qTy?5M?????o??A{??????A?o?2??ؑq?qv?/u!`Ke????e???/|??Nj?|???????u??*c?DA?2W.!C???lhݹ3:^*?E@???Az??5К??1I? ?_޼???r??,T??*???2??i??S>?????OQ,??????߫?x ??>????????b]E??A"?%S>Ʊ?CT?-mW?ZY?RW?7Ózx&???}$????`??????????????[^? ^?????˘???$X?J??w(?QܦPԴ?;u9?_~?> ?s??,???4=??H*?t?َ]1?????Z???u?PX??~x???]??n??*? ??????? ?H?`?vP??fyxU?????ߘ? L??T?X??Q?m???s8?>?????x񟿽??c)????Z]]FV?h0?;+ؠ?*??W9O??v[???P??5,????6?Z?<?V ???ɢ٭?? ???V@?m????9Tl #??v????????M?G?1Zh9?x??|???m??<??Y]$ ?h??_Rx|?}K?%`q?d????9D??@?Os??vL?dǦ?d l??X?7??U???$??U??v?ؑ% G??L???]?P???D??????`??=?ȶ??H?_??أ??+??h;???T??V􋌑;??6?"bSS??????J1?d???%Df?%&?,??>z4>:ZO?7??e?ht?t=??e0?΅x?x=?4????ڑ?P?cT???h?????̊h?b)9?k??????Gf?U?`?jռlZ?????03?S?,?BA????M6TpÇc?`cccu?s??`??8qX? `??E?!T?`e,Em8?8| ?2#`%8}????M?İ????l???(1i?t?z??? ^Y3`?e?QZ?3?e?t,?I? L?#??}??p?؝Q?5V???r?.-b)?b????Yk~???Q?Q짂?- (??.yL??W?d(??&?ff??2???t??)?ڈh??x"?B??IE???>?T??8 ? ?A??ƶ/He???1kiD?Z^)??Gz?C?A??8g??Z?t????????? ?????tau1̑凎i??)#W?Tڶ)??Z47"?Ҁ% ?- ??,???? Ѭ???V>toTV???O..??b? ۿ< ?E???F҃? ??c?$??o?7??b?&?b?N?#???YKc:)???L????6?>lr*&6?e?6?hr??KMd?????B?0rA????Br?? ?hW??V?&?/?}'??@?!?m?k??`?ce" = Z??i??-a?c%??D??#?? 1? P)?Q???δ??R???.*d??QP?۷QR?????ERZ.r? U?Vx? `??O?(H?얠ӿ&`l$,rlO2w,?eҐ?C?8&!$???9ynjqje Qr???JC?H*?b+?"je?6cA??l?xH??q<