Google digs into deeper meanings of searches
Google digs into deeper
meanings of searches
BY RACHEL LERMAN October 25,
2019
MOUNTAIN VIEW, California
(AP) — Google is paying more attention to the small words in your searches.
Want to figure out how to park on a hill with no curb? Google now takes that
“no” into account, and shows top results that include parking instructions without
curbs.
The company is rolling out
the change to English language searches in the U.S. starting this week. Google
said it expects the shift will give better results for every one in 10
searches.
Tweaking its massive search
engine is nothing new for Google. The company makes regular changes to be more
accurate and show more useful results. But this one is the biggest the company
has released in at least five years, said Pandu Nayak, Google’s vice president
of Search.
“It looks at the whole
context of words to try to understand what’s going on,” he said.
The change is rooted in
Google’s natural language processing research, which studies how to teach
computers to understand the nuance of speech and communication. This newest
update is based on a training technique called Bidirectional Encoder
Representation from Transformers, or BERT.
The technique involves
teaching the systems to better understand the order and context in which a word
appears. Google trains the system by using a “fill-in-the-blank” practice,
having the machines guess which word is missing in a sentence until it gets
better at finding the right answer all the time.
Google has long focused on
the keywords in your search term, but this method helps it take into account
every word in the sentence in order to better understand meaning and,
hopefully, show more relevant results first.
BERT brings more, better
results, Nayak said the company has found through testing this year. But it’s
not perfect, and the change means some results will miss the mark more than
they do now.
“We’re really playing a
statistical game here,” Nayak said.
So will you notice that
Google understands your questions better? Well, maybe. Search has gotten much
more nuanced since it first launched more than 20 years ago. But changes by
themselves are subtle.
“I think most ranking
changes the average person does not notice other than hopefully feeling their
searches are better,” Nayak said.
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