Showing posts with label human. Show all posts
Showing posts with label human. Show all posts

Wednesday, October 19, 2016

Google’s ‘DeepMind’ AI platform can now learn without human input


DeepMind is now capable of teaching itself based on information it already possesses.
In a significant step forward for artificial intelligence, Alphabet’s hybrid system — called a Differential Neural Computer (DNC) — uses the existing data storage capacity of conventional computers while pairing it with smart AI and a neural net capable of quickly parsing it.
“These models can learn from examples like neural networks, but they can also store complex data like computers,” wrote DeepMind researchers Alexander Graves and Greg Wayne.
Much like the brain, the neural network uses an interconnected series of nodes to stimulate specific centers needed to complete a task. In this case, the AI is optimizing the nodes to find the quickest solution to deliver the desired outcome. Over time, it’ll use the acquired data to get more efficient at finding the correct answer.
The two examples given by the DeepMind team further clear up the process:
  1. After being told about relationships in a family tree, the DNC was able to figure out additional connections on its own all while optimizing its memory to find the information more quickly in future searches.
  2. The system was given the basics of the London Underground public transportation system and immediately went to work finding additional routes and the complicated relationship between routes on its own.
Instead of having to learn every possible outcome to find a solution, DeepMind can derive an answer from prior experience, unearthing the answer from its internal memory rather than from outside conditioning and programming. This process is exactly how DeepMind was able to beat a human champion at ‘Go’ — a game with millions of potential moves and an infinite number of combinations.
Depending on the point of view, this could be a serious turn of events for ever-smarter AI that might one day be capable of thinking and learning as humans do.
Or, it might be time to start making plans for survival post-Skynet.

Thursday, September 29, 2016

Google Translate now interprets Chinese-to-English with near human-level accuracy


The very software that thrice defeated world grandmaster Lee Sedol for the ancient game of Go is now beginning to power Google Translate. Google will now begin to translate Chinese to English using a system called Google Neural Machine Translation.

Google Translate had been using the phrase-based production system to translate Chinese to English, among other language pairs, but with little success. That was particularly so because Mandarin Chinese is notably hard to convert to English due in part to the different meanings a word could take when paired with certain characters. But that was mainly because of the differences between the Chinese and English cultures, which affect language.
The rollout of Google’s neural machine translation system in both the web and mobile versions of Google Translate could significantly change that. Native Mandarin Chinese speakers may no longer cringe at Google Translate results as the AI-based tool will now look at the whole sentence structure before decoding it.
Previously, Google Translate used to parse sentences into their component words as it interpreted them, resulting in sometimes nonsense translations.
Based on Google’s tests, the Google Neural Machine Translation system reduces translation errors by between 55 percent and 85 percent. Quoc V. Le and Mike Schuster, research scientists for Google Brain Team, lauded the GNMT approach as more advantageous than Phrase-Based translation systems.
"There is still a lot of work we can do to serve our users better. However, GNMT represents a significant milestone."
However, the researchers acknowledge that machine translation isn’t solved just yet. In a blog post, the researchers wrote:
"GNMT can still make significant errors that a human translator would never make, like dropping words and mistranslating proper names or rare terms, and translating sentences in isolation rather than considering the context of the paragraph or page. There is still a lot of work we can do to serve our users better. However, GNMT represents a significant milestone."
On top of the Chinese-to-English language pair, Google also plans to implement GNMT in 10,000 other language pairs supported by Google Translate. You might want to check out the updated version of the app now and tell us how well it works.