Atchai blog

The Times covers our AI work with Cabinet Office

Posted 25 Nov 2020 (1 minute read)

Atchai has been working with Cabinet Office to explore how machine learning and natural language processing technology can be applied to address the need for better exploitation of knowledge across government. Our work received positive coverage in The Times with a quote from our CTO: It has been a privilege to work with Cabinet Office on such an important problem. So much so that we’re starting an entirely new brand to focus on delivering ethical AI and data science for government, with a mission to ensure that the benefits of AI accrue to everyone in society: Colour AI.

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Reasons for unrest: Using deep learning to understand the reasons behind global protests

Posted 18 Nov 2020 (150 minute read)

We have developed a technique to understand the dominant reasons for protests and demonstrations happening around the world. Our work builds on the ACLED dataset, a source that’s regularly quoted in the media and described by the Guardian as being “the most comprehensive database of conflict incidents around the world”. ACLED helpfully collects all political violence and protest events but only provides a text description of the event which makes it hard to cluster together events that have a common theme and ask questions such as “how many BLM protests are happening per week?” or “what are the main issues that people are protesting about in Nigeria?” In this article we’ll take the latter question —”what are the main issues that people are protesting about in Nigeria” — and we’ll provide a worked example, showing how we use state-of-the-art NLP techniques such as transformers and large language models to help us cluster similar events.

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AI will be the judge of that - predictive algorithms in the public sector

Posted 9 Sep 2020 (5 minute read)

Algorithms have been choosing our fate for years. From automated mortgage decisions to dating apps assessing our compatibility with a potential mate, machines are running the show. In spite of this, the controversy over UK exam grades being predicted by an algorithm has led many to question our reliance on computers over human judgement. Many feel troubled by the concept of algorithms assessing whether a criminal is likely to reoffend. However, by helping tackle the deep-seated problem of unconscious bias in the judicial system, could they be working towards the greater good?

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What can data scientists contribute to the COVID-19 effort?

Posted 23 Mar 2020 (4 minute read)

Health care professionals are the real heroes of the moment but there is an important role for data scientists to play in the fight against the pandemic that’s shaking the globe right now. Your first port of call should be the COVID-19 Open Research Dataset — released on 20th March by the White House and a coalition of leading research groups. I recommend heading over to the associated Kaggle competition where you can collaborate and build upon the work of other data scientists who have already made progress on cleaning and understanding the potential of this dataset containing over 29,000 academic papers related to COVID-19, SARS-CoV-2, and other coronaviruses.

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Atchai appointed to Crown Commercial Service’s Spark DPS Framework

Posted 23 Oct 2019 (1 minute read)

We’re pleased to announce that Atchai has been appointed as a supplier on the new government procurement framework for innovative technology - Spark DPS. CompleteFlow is our product for intelligent automation and conversational AI. It is now available with both cloud and on-premises hosting on Spark. If you’re looking to leverage conversational AI, machine learning or NLP technology in government or the public sector then please contact us in the first instance and we can advise on solutions and procurement options.

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How we simulated and subsequently abandoned the MythX token

Posted 31 Dec 2018 (15 minute read)

MythX (previously Mythril) recently made the decision to drop their custom token and move to a stablecoin-based subscription payment system. Bernhard already posted a good overview of the reasoning behind this decision but I’d like to add some background on how we used simulations to help us understand the dynamics of and issues with the token model. By way of disclaimer, I’m an advisor to MythX and co-creator of the Economy.os tool.

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Can we save the utility token?

Posted 30 Aug 2018 (8 minute read)

Introducing a dynamic bonding curve token model Utility tokens have received a lot of bad press recently, and for good reason. Many ICOs that sold utility tokens seem to have massively over-estimated the supply of tokens required for normal usage of their networks. The price of these tokens has been supported by speculative investors who presumably didn’t give much thought to the fact that they were not designed to function as a store of value and will likely be sold in return for usage as soon as they’re purchased by legitimate users, resulting in what is now commonly referred to as the velocity problem.

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Software licences as non-fungible tokens

Posted 11 Apr 2018 (6 minute read)

What if all our software licenses were compatible and we could go to a single integrated app store and sell say three days of Adobe Creative Cloud and buy two days of Microsoft Office? This flexibility would be a clear win for consumers but would surely lead to a loss of revenue for software vendors. Hmm, but what if this easy transferability of licenses also reduced piracy? In this post we present a simple proof of concept, representing software licenses as ERC721 tokens on the Ethereum blockchain, and using Metamask to passwordlessly log in to a web app by proving that you own the address that owns the tokens.

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OpenSign - Decentralized Agreements on the Blockchain

Posted 15 Mar 2018 (4 minute read)

OpenSign is a free, decentralized alternative to products like DocuSign and EchoSign. It allows you to make agreements without requiring any trusted third party to keep track of your documents and signatures. td;dr The OpenSign dapp is currently an MVP, you can try it yourself now if you have some Ethereum and your browser has MetaMask installed. How does it work We’ve tried to make the process of creating multi-party agreements as simple as possible, but you will need some experience of using Ethereum and Metamask for any of this to make sense.

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Eyewitness Platform sprint 2 update

Posted 17 Jan 2018 (5 minute read)

The Eyewitness platform is an open source messaging bot and management interface designed to let news organisations distribute stories and collects User Generated Content (UGC). The project is funded by Code for Africa and Bill and Melinda Gates Foundation. Feedback on our first release As detailed in the update for release 1, our first version of the Eyewitness chatbot focussed on providing a reason for people to connect with the bot.

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