Page 24 - ARUBA TODAY
P. 24

A24    TECHNOLOGY
                  Friday 26 January 2018
            AI can read! Tech firms race to smarten up thinking machines



            By MATT O’BRIEN                                                                                                     LIMITS OF UNDERSTANDING
            AP Technology Writer                                                                                                The  tech  industry’s  col-
            PROVIDENCE,  R.I.  (AP)  —                                                                                          lection   and   digitization
            Seven  years  ago,  a  com-                                                                                         of  huge  troves  of  data,
            puter  beat  two  human                                                                                             combined  with  new  sets
            quizmasters  on  a  “Jeopar-                                                                                        of  algorithms  and  more
            dy”  challenge.  Ever  since,                                                                                       powerful  computing,  has
            the tech industry has been                                                                                          helped  inject  new  energy
            training  its  machines  even                                                                                       into  a  machine-learning
            harder to make them bet-                                                                                            field that’s been around for
            ter at amassing knowledge                                                                                           more  than  half  a  century.
            and answering questions.                                                                                            But computers are still “far
            And it’s worked, at least up                                                                                        off”  from  truly  understand-
            to  a  point.  Just  don’t  ex-                                                                                     ing  what  they’re  reading,
            pect  artificial  intelligence                                                                                      said  Michael  Littman,  a
            to spit out a literary analysis                                                                                     Brown  University  computer
            of  Leo  Tolstoy’s  “War  and                                                                                       science  professor  who  has
            Peace” any time soon.                                                                                               tasked  computers  to  solve
            Research  teams  at  Micro-                                                                                         crossword puzzles.
            soft and Chinese tech com-                                                                                          Computers are getting bet-
            pany  Alibaba  reached                                                                                              ter at the statistical intuition
            what  they  described  as  a                                                                                        that  allows  them  to  scan
            milestone earlier this month   Stanford doctoral student Pranav Rajpurkar, who helped develop the Stanford Question Answering   text  and  find  what  seems
            when  their  AI  systems  out-  Dataset, poses for photos in an office of The Gates Computer Science Building in Stanford, Calif.,   relevant, but they still strug-
            performed  the  estimated    Tuesday, Jan. 23, 2018.                                                                gle with the logical reason-
            human score on a reading                                                                           Associated Press  ing that comes naturally to
            comprehension test. It was  quickly “reading” hundreds    HUMAN VS. MACHINE            just find factoids, but better  people.  (And  they  are  of-
            the latest demonstration of  of  Wikipedia  entries  and   It’s  not  uncommon  for  comprehend  the  mean-         ten hopeless when it comes
            rapid advances that have  coming  up  with  accurate      machine-learning     com-    ing  of  multi-sentence  pas-  to  deciphering  the  subtle
            improved  search  engines  answers to questions about     petitions  to  pit  the  cogni-  sages.                   wink-and-nod  trickery  of  a
            and  voice  assistants  and  Genghis Khan’s reign or the   tive  abilities  of  computers  Like  the  other  tests,  the  clever puzzle.) Many of the
            that  are  finding  broader  Apollo space program.        against humans. Machines  Stanford  Question  Answer-     common  ways  of  measur-
            applications in health care  The  computers,  however,    first  bested  people  in  an  ing  Dataset,  nicknamed  ing artificial intelligence are
            and other fields.            also  made  mistakes  that   image-recognition compe-     Squad,  attracted  a  rivalry  in  some  ways  teaching  to
            The answers they got wrong  many     people    wouldn’t   tition in 2015 and a speech  among  research  institu-    the test, Littman said.
            — and the test itself — also  have.                       recognition    competition  tions and tech firms — with  “It strikes me for the kind of
            highlight  the  limitations  of  Microsoft,   for   instance,   last  year,  although  they’re  Google,  Facebook,  Ten-  problem  that  they’re  solv-
            computer intelligence and  fumbled  an  easy  foot-       still easily tricked. Comput-  cent,  Samsung  and  Sales-  ing that it’s not possible to
            the difficulty of comparing  ball  question  about  which   ers  have  also  vanquished  force also giving it a try.  do better than people, be-
            it  directly  to  human  intelli-  member of the NFL’s Caro-  humans at chess, Pac-Man  “Academics love competi-    cause people are defining
            gence.                       lina Panthers got the most   and the strategy game Go  tions,”  said  Pranav  Rajpur-  what’s  correct,”  Littman
            ERROR! ERROR!                interceptions  in  the  2015   .                          kar,  the  Stanford  doctoral  said of the Stanford bench-
            “We  are  still  a  long  way  season (the correct answer   And  since  IBM’s  “Jeop-  student  who  helped  de-    mark.
            from computers being able  was Kurt Coleman, not Josh     ardy!”  victory  in  2011,  the  velop  the  test.  “All  these  “The  impressive  thing  here
            to  read  and  comprehend  Norman). A person’s care-      tech  industry  has  shifted  companies  and  institutions  is  they  met  human  perfor-
            general  text  in  the  same  ful reading of the Wikipedia   its  efforts  to  data-intensive  are trying to establish them-  mance,  not  that  they’ve
            way  that  humans  can,”  passage  would  have  dis-      methods  that  seek  to  not  selves as the leader in AI.”  exceeded it.”q
            said Kevin Scott, Microsoft’s  covered  the  right  answer,
            chief technology officer, in  but  the  computer  tripped
            a  LinkedIn  post  that  also  up on the word “most” and   Apple poised to expand into
            commended the achieve-       didn’t understand that sev-
            ment  by  the  company’s  en is bigger than four.         speaker market with HomePod
            Beijing-based researchers.   “You need some very sim-
            The  test  developed  at  ple reasoning here, but the     SAN  FRANCISCO  (AP)  —  product.
            Stanford  University  dem-   machine  cannot  get  it,”   Apple  is  finally  ready  to  Both  Amazon’s  Echo  and
            onstrated  that,  in  at  least  said  Jianfeng  Gao,  of  Mi-  launch its attempt to com-  Google’s  Home  speakers
            some circumstances, com-     crosoft’s  AI  research  divi-  pete with the internet-con-  have been expanding their
            puters can beat humans at  sion.                                                                                    In this Monday, June 5, 2017,
                                                                      nected  speakers  made  reach into people’s homes         file  photo,  the  HomePod
                                                                      by  Amazon  and  Google  since  Apple  announced          speaker  appears  on  display
                                                                      with the release of its long-  the  HomePod  last  June.   during  an  announcement  of
                                                                      awaited HomePod.             Amazon  and  Google  also    new  products  at  the  Apple
                                                                                                                                Worldwide
                                                                                                                                                Developers
                                                                      Pre-orders  for  the  Home-  are  selling  their  speakers   Conference in San Jose, Calif.
                                                                      Pod will begin Friday in the  for  substantially  less,  with        Associated Press
                                                                      U.S, U.K. and Australia, two  streamlined versions of their   commands  while  Amazon
                                                                      weeks  before  the  speaker  devices  available  for  be-  leans on Alexa and Google
                                                                      goes  on  sale  in  stores  for  low $50.                 features  the  eponymous
                                                                      $349.                        Like its rivals, the HomePod   Assistant.
                                                                      Apple had intended to re-    includes a voice-activated   All  three  companies  are
                                                                      lease  the  HomePod  last  assistant  to  help  people    trying to build digital com-
                                                                      month  during  the  holiday  manage  their  homes  and    mand centers within homes
                                                                      shopping  season,  but  de-  the  rest  of  their  lives.  Ap-  in an attempt to sell some
                                                                      layed its debut to refine the  ple relies on Siri to process   of their other products. ”q
   19   20   21   22   23   24   25   26   27   28   29