1 Mar
2021

Harvard men’s basketball moves past Cincinnati, 61-57

first_imgSPOKANE, Wash. — Siyani Chambers scored five of his 11 points in the final 1:58 to lift the 12th-seeded Harvard men’s basketball team to a 61-57 win over fifth-seeded Cincinnati in the second round of the NCAA tournament on Thursday.With Thursday’s win, Harvard improves to 27-4 overall, setting a new program record for wins in a season. The Crimson also becomes the first Ivy League team to win an NCAA tournament game in consecutive seasons since Princeton did so in 1983 and 1984. For full coverage of the game, including a video recap.Harvard will now face No. 4 Michigan State on Saturday at 8:40 p.m. EST live on TNT. For coverage of Saturday’s game, visit the Crimson’s Tournament Central website.last_img

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1 Mar
2021

Visual forensics that can detect fake text

first_imgIn a time of deepfakes and AI equipped with far-too-human natural-language, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and IBM Research asked: How can we help people detect AI-generated text?That question led Sebastian Gehrmann, a Ph.D. candidate at the Graduate School of Arts and Sciences, and Hendrik Strobelt, a researcher at IBM, to develop a statistical method, along with an open-access interactive tool, to differentiate language generated by code from human speech.Natural-language generators are trained on tens of millions of online texts and mimic human language by predicting the words that most often follow one another. For example, the words “have,” “am,” and “was” are statically most likely to come after the word “I”.Using that idea, Gehrmann and Strobelt developed a method that, instead of flagging errors in text, identifies text that is too predictable.“The idea we had is that as models get better and better, they go from definitely worse than humans, which is detectable, to as good as or better than humans, which may be hard to detect with conventional approaches,” said Gehrmann.“Before, you could tell by all the mistakes that text was machine-generated,” said Strobelt. “Now, it’s no longer the mistakes but rather the use of highly probable (and somewhat boring) words that call out machine-generated text. With this tool, humans and AI can work together to detect fake text.” “This research is targeted at giving humans more information so that they can make an informed decision about what’s real and what’s fake.” — Sebastian Gehrmann Gehrmann and Strobelt will present their research, which was co-authored by Alexander Rush, an associate in computer science at SEAS, at the Association for Computational Linguistics conference Sunday through Thursday.Gehrmann and Strobelt’s method, known as GLTR, is based on a model trained on 45 million texts from websites — the public version of the OpenAI model, GPT-2. Because it uses GPT-2 to detect generated text, GLTR works best against GPT-2, but it does well against other models, too.Here’s how it works:Users enter a passage of text into the tool, which highlights each word in green, yellow, red, or purple, each color signifying the predictability of the word in the context of what it follows. Green means the word was very predictable; yellow, moderately predicable; red not very predictable; and purple means the model wouldn’t have predicted the word at all.So, a paragraph of text generated by GPT-2 will look like this:To compare, this is a real New York Times article:And this is an excerpt from arguably the most unpredictable text ever written by a human, James Joyce’s “Finnegans Wake”:The method isn’t meant to replace humans in identifying fake texts, but to support human intuition and understanding. The researchers tested the model with a group of undergraduates in an SEAS computer science class. Without the model, the students could identify about 50 percent of AI-generated text. With the color overlay, they identified 72 percent.Gehrmann and Strobelt say that with a little training and experience with the program, the percentage could get even better.“Our goal is to create human and AI collaboration systems,” said Gehrmann. “This research is targeted at giving humans more information so that they can make an informed decision about what’s real and what’s fake.” Related The ruse of ‘fake news’ Researchers propose a new field of study to explore how intelligent machines behave as independent agents Researchers want to use science to combat techniques that can make the true seem false, and the reverse The science of the artificiallast_img read more

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6 Oct
2020

Warning as stamp duty escalates

first_imgStamp duty is rising three times faster than house prices says the HIA.STAMP duty is rising three times faster than house prices, and unless checked will significantly drain the pockets of future homebuyers, industry analysts have warned.The latest Housing Industry Association Stamp Duty Watch report warned that state governments were becoming increasingly reliant on housing taxes to fill coffers.“Stamp duty bills have increased almost three times faster than house prices since the 1980s and this trend will continue unless stamp duty is reformed,” said HIA senior economist Shane Garrett.Victoria’s typical stamp duty bill jumped from 1.9 per cent to 5.2 per cent of the median dwelling price between 1982 and 2017 — equivalent to a 4,000 per cent surge in the cash value of stamp duty.More from newsParks and wildlife the new lust-haves post coronavirus22 hours agoNoosa’s best beachfront penthouse is about to hit the market22 hours agoNSW homebuyers saw stamp duty rise from 1.6 per cent to 3.8 per cent during that time, while Queenslanders were somewhat less encumbered having gone from 1 per cent to 1.6 per cent. Stamp Duty as a Proportion of Median Dwelling Price, 1982 to 2017: Source: HIA“Increases in home prices cause stamp duty bills to accelerate because stamp duty rate brackets are rarely updated. This is the problem of stamp duty creep.”State government revenue from stamp duty had almost doubled in the past four year, Mr Garrett said, going from $11.7b in 2011/12 to $20.6b in 2015/16 — most of which was off residential building. “State governments are increasingly reliant on rising stamp duty revenues. This situation is not sustainable. The stamp duty burden is increasing under every metric: nominal dollars, real dollars, as a proportion of dwelling prices and as a share of total state revenue. Without reform, this trend will continue.“By draining the pockets of homebuyers to the tune of over $20 billion each year, stamp duty is a central pillar of the affordability crisis. A long plan to do away with the scourge of stamp duty would be a huge victory for housing affordability in this country.” FOLLOW SOPHIE FOSTER ON FACEBOOKlast_img read more

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28 Aug
2020

It is not over for us: Chelsea Coach

first_imgBerekum Chelsea Head Coach Hans Vander Pluym says they still have a chance of making it to the semi finals of the CAF Champions league despite suffering a massive set-back in at the Accra stadium on SundayThe Berekum based side managed for a 1-1 draw against Egyptian side Al Ahly at the Accra Sports stadium after missing a lot of goal scoring opportunities.Ahly were the better side in the first half as they dominated play which resulted in their goal in the 42nd minute. Chelsea Midfielder Jordan Opoku pulled level in the 51st minute after controlling a cross from teammate Solomon Asante to blast home the equalizer from about 15 yards.“It is not over until it is over. I believe luck was simply not on our side and that why we couldn’t pick the maximum points. Coach Pluym told JOY Sports“We still have chance to progress and so we’re not perturbed at all. Like I said we were just unlucky and so we’ll see how it goes,”The Ghanaian side now has to win their last two matches involving another Egyptian side Zamalek and TP Mazembe of Congo before they can book a semi final berth.last_img read more

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17 Nov
2019

Xiaomi Mi A2, Mi A2 Lite prices leaked ahead of July 24 launch

first_imgTwo independent online sellers in Romania have listed the Xiaomi Mi A2 and the Mi A2 Lite on their respective platforms, revealing purported price specifics of the upcoming Android One phones. Xiaomi is all set to launch the Mi A2 and the Mi A2 Lite Android One phones at its global launch event in Madrid, Spain on July 24. The pricing of the Mi A2 Lite was also previously leaked via an AliExpress listing in China, also giving away design and hardware specifics of the phone in question.According to QuickMobile, the Xiaomi Mi A2 will cost RON 1,288 (roughly Rs 22,200) for the 4GB RAM and 32GB storage version while the 4GB RAM and 64GB storage version will be available for RON 1,424 (roughly Rs 24,600). The Mi A2 Lite on the other hand will cost RON 943 roughly Rs 16,200) for the 3GB RAM and 32GB storage version while the 4GB RAM and 64GB storage version of the phone will cost RON 1,143 (roughly Rs 19,700).According to PCGarage, the Xiaomi Mi A2 will cost RON 1,400 (roughly Rs 24,200) for the 4GB RAM and 32GB storage version while the 4GB RAM and 64GB storage version will be available for RON 1,600 (roughly Rs 27,600). The Mi A2 Lite on the other hand will cost RON 1,000 (roughly Rs 17,200) for the 3GB RAM and 32GB storage version while the 4GB RAM and 64GB storage version of the phone will cost RON 1,200 (roughly Rs 20,700).Note that this may not be the final pricing, and may be just placeholder text which also is indicated by the discrepancy in pricing on the two stores.advertisementPreviously, an AliExpress listing had claimed that the Mi A2 Lite will have two versions: 3GB RAM and 32GB storage for around $190 and 4GB RAM and 64GB storage for $210.The same listing came with renders of the Mi A2 Lite A2 Lite hinting that the phone could be a rebranded Redmi 6 Pro. The Mi A2 Lite, as per the listing, had the same design and the same hardware specs as the Redmi 6 Pro which was launched recently in China. Only, in the Mi A2 Lite, Xiaomi will (obviously) be using stock Android 8.1 Oreo (Android One) software.The phone will reportedly come with a 5.84-inch screen and dual rear cameras. It will reportedly have a notch up-top resulting in an aspect ratio of 19:9. The phone will reportedly be powered by a Qualcomm Snapdragon 625 processor and backed by a 4,000mAh battery.On the optics front, the Mi A2 Lite is said to sport a 12+5 MP setup on the rear and a 5MP camera on the front.The Mi A2 will quite possibly be a rebranded Mi 6X with more powerful hardware and similar stock Android software.ALSO READ: Xiaomi Mi A2 Lite could be a rebranded Redmi 6 Pro, launch likely on July 24last_img read more

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