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p>Minecraft diamond challenge leaves AI creators stumped By Sam Shead Technology reporter

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p>12 December 2019

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p>Most Minecraft players can locate the most important diamonds in a matter of minutes. However, it is much more difficult to create artificial intelligence that can do this task.

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p>Microsoft is a Minecraft publisher and other companies challenged coders to design AI agents that could find the sought-after treasures.

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p>The majority of people can complete it in their first attempt.

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p>Of the 660 entries, not one of them was up to the task.

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p>The official announcement of the results of the MineRL competition, which is pronounced "mineral" is expected to be made at the NeurIPSAI conference in Vancouver, Canada on Saturday.

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p>The objective was to determine if the issue could be solved using minimal computing power.

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p>Despite the absence of an award however, one of the organizers said that she was "hugely amazed" by a few participants.

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p>"The task we posed is very hard," said Katja Hofmann who is a principal researcher at Microsoft Research. "Finding diamonds in Minecraft involves a number of steps - from cutting down trees, making tools, to exploring caves and actually finding a diamond.

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p>"While the submitted agents aren't capable of solving the problem fully, they have made significant progress and learned how to use various tools that are needed."

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p>Mining diamonds

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p>Minecraft has become wildly popular since its release in 2011. https://www.click4r.com/posts/g/5997535/render-dragon-to-5-best-realistic-shaders-for-1-19-mcpe-1-19 </p>

p>More than 180 million copies of the game that is open-world have been sold, and the title has more than 112 million monthly active players.

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p>Diamond is a very important resource in Minecraft. It can be used to make powerful weapons and armor.

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p>To acquire the precious gem However, the player must go through a few other steps.

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p>Jules Portelly, a Minecraft player, said it shouldn't take more than 20 minutes to collect your first diamonds, if you're comfortable with the game.

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p>Entrants were only allowed to utilize a single graphics processor unit (GPU) and four days of time to train. To put it in perspective, AI systems usually need months or years of game play to master games such as StarCraft II.

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p>A comparatively small Minecraft dataset, with 60 million frames of human player data, was also provided to players to train their systems.

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p>"At the start of every episode they spawned in a procedurally-generated Minecraft world," explained Dr Hofmann.

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p>"So they really needed to learn the concept of finding resources, making tools and finding a diamond."

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p>Minecraft for artificial intelligence research

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p>DeepMind AI reaches Grandmaster status at Starcraft 2

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p>Minecraft players will be assisted by an AI assistant

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p>The developers were asked to create programs that were learned by imitation, which is a technique known as "imitation learning".

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p>This is about trying to convince AI agents to adopt the most efficient method by making them mimic what humans or other software perform to solve a problem.

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p>It is in contrast to relying entirely on "reinforcement learning", in which an agent is trained to determine the most effective solution via a process of trial and error, without using the knowledge of previous experiences.

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p>AI for all

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p>Researchers have discovered that using reinforcement learning alone can sometimes deliver superior results.

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p>For instance, DeepMind's AlphaGo Zero program trumped one of the research hub's previous efforts, which used both reinforcement learning and the study of data labelled from human play to learn the board game Go.

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p>This "pure" approach requires more computing power and is therefore too expensive for researchers not working in large companies or governments.

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p>William Guss, the main competition organiser and a PhD student at Carnegie Mellon University, told the BBC that the point of the competition had been to show that "throwing massive computation at problems isn't necessarily the best way to push the limits of the art as a field".

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p>He added: "It works directly against the democratization of access to these systems for reinforcement learning and leaves the capacity to train agents in difficult environments to companies with vast amounts of compute."

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p>However, the outcome may be a way to highlight the advantages these well-funded entities have.

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p>Minecraft graphics to be more realistic'

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p>19 August 2019

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p>Minecraft player loses five years of game

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p>29 April 2019

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