Collaborating Authors


Financial Time Series Forecasting with Deep Learning


In this episode of the Data Exchange I speak with Murat Özbayoğlu, Chair of Artificial Intelligence Engineering at TOBB University of Economics and Technology in Ankara, Turkey. I've long been fascinated with finance and trading. My first job after I left academia was as the lead quant in a hedge fund, and ever since, I've tried to stay abreast of what tools and techniques quants and data scientists in finance are using. Forecasting in this setting usually means price prediction or price movement (trend) prediction. Output of forecasting models are used to inform investment decisions.

Can artificial intelligence transform higher education?


Readers are recommended to start with Zawacki-Richter et al.'s'Systematic review of research on artificial intelligence applications in higher education.' The authors reduced an initial trawl of 2656 articles published between 2007 and 2018 in peer reviewed journals down to 146 articles that met their selection criteria. The Zawacki-Richter at al. paper gives readers a good overview of the various areas where AI is being applied in higher education, as well as an indication of which areas researchers have tended to focus on. One of the areas identified by Zawacki-Richter et al. was the use of AI to predict final academic performance based on test results earlier in a course (profiling and prediction). The second paper in this issue by Akçapinar, Altun and Askar observed that 74% of the students who were unsuccessful at the end of term in an online computer science course in Turkey could be accurately predicted through the use of a specific algorithm (kNN) in as short as 3 weeks from the beginning of the course.

Demand Prediction Using Machine Learning Methods and Stacked Generalization Artificial Intelligence

Supply and demand are two fundamental concepts of sellers and customers. Predicting demand accurately is critical for organizations in order to be able to make plans. In this paper, we propose a new approach for demand prediction on an e-commerce web site. The proposed model differs from earlier models in several ways. The business model used in the e-commerce web site, for which the model is implemented, includes many sellers that sell the same product at the same time at different prices where the company operates a market place model. The demand prediction for such a model should consider the price of the same product sold by competing sellers along the features of these sellers. In this study we first applied different regression algorithms for specific set of products of one department of a company that is one of the most popular online e-commerce companies in Turkey. Then we used stacked generalization or also known as stacking ensemble learning to predict demand. Finally, all the approaches are evaluated on a real world data set obtained from the e-commerce company. The experimental results show that some of the machine learning methods do produce almost as good results as the stacked generalization method.

Scientists Created AI to Analyze People's Dreams on a Massive Scale


Aiello and his collaborators applied their AI tool to dream reports collected in the DreamBank, a massive database put together by Adam Schneider and UC Santa Cruz professor emeritus G. William Domhoff. The dream reports are more thorough than my brief dream journal entries. One, from a blind person, reads: "I was at a religious retreat. We were sitting in a dining room, eating dinner. There were roses on the table, I smelled their fragrance. We had a Thanksgiving-type dinner with my favorite things (turkey, stuffing, cranberries) and my favorite kind of dessert, pumpkin pie. And it was in the middle of spring, which was most ironic."

'Gotham Knights' is a Batman game without the Caped Crusader


DC's Fandome event was intended as a replacement for the company's usual big presence at this year's cancelled San Diego Comic-Con, and within minutes the company came out swinging with its first big announcement: Gotham Knights, a video game about a city without Batman, where his various proteges have to step up to defend their home. In the action-adventure title the player will get to play as one of four prominent members of the Bat-Family: Nightwing, Robin, Batgirl and Red Hood. Bruce Wayne is dead, and it won't take long for the villains of Gotham City to figure out that Batman is gone too. Luckily, he's left behind plenty for his associates to work with, including a well-equipped headquarters and of course, the ever-faithful Alfred. The mechanics lie in the vein of games like Marvel's Spider-Man for PS4 and the Assassin's Creed series, with plenty of stealth and brawling, though we also get to see Batgirl drive a pretty sweet bike through the streets of Gotham. The one standout is that this game will be a co-op title, with players able to work together to clear areas and defeat villains -- in the gameplay footage shown, we got to see Batgirl and Robin make their way through a building taken over by perennial Batman villain Mr. Freeze.

Iraq fumes against Turkey over deadly drone attack

Al Jazeera

Iraq cancelled a ministerial visit and summoned Turkey's ambassador on Wednesday as it blamed Ankara for a drone attack that killed two high-ranking Iraqi military officers. Iraqi officials called the attack a "blatant Turkish drone attack" in the autonomous Kurdish region in northern Iraq, where Turkey's military has for weeks raided positions of fighters it considers "terrorists". Two border guard battalion commanders and the driver of their vehicle were killed on Tuesday, the army said in a statement, marking the first Iraqi troop deaths since Turkey launched the cross-border operation in mid-June against Kurdistan Workers' Party (PKK) rebels. Iraq's foreign ministry - which already summoned the Turkish envoy twice over the military action on its soil - said the ambassador would this time be given "a letter of protest with strong words" rejecting the offensive. The ministry also confirmed the Turkish defence minister would no longer be welcomed for a planned visit on Thursday.

Iraq army says Turkish drone killed two high-ranking commanders

Al Jazeera

The Iraqi army says two senior security officials have been killed in a "blatant Turkish drone attack" in the country's north, where Ankara has for weeks been raiding positions of fighters it considers "terrorists". The drone targeted a vehicle belonging to the Iraqi border guards in the Bradost area, north of Erbil, the military said in a statement on Tuesday. The strike caused the deaths of the two border guard battalion commanders and the vehicle's driver. There was no immediate statement by Turkey. The deaths announced by the military marked the first time members of the regular Iraqi forces have been killed since Turkey launched a cross-border ground and air operation in mid-June against the Kurdistan Workers' Party (PKK) in the mountainous terrain of northern Iraq.

The studio behind the 'Batman Arkham' video games is working on 'Suicide Squad'

USATODAY - Tech Top Stories

We now know the next project from the studio behind the stellar series of'Batman Arkham' video games. On Friday, Rocksteady Studios posted a tweet teasing a video game based on the DC property Suicide Squad. "Target locked," reads the tweet, along with the date Aug. 22, timed to the virtual fan event DC Fandome. The tweet also shows an image of Superman with his back turned, and a Suicide Squad logo resembling a target on the back of his head. Rocksteady is best known for its work on The Dark Knight, with the 2009 launch of "Batman: Arkham Asylum."

Man creates new Led Zeppelin song using the power of artificial intelligence


There have been many landmarks in the history of artificial intelligence, from the formulation of the mathematical theory that inspired neural networks back in 1943, to IBM’s famous Watson AI beating two champion Jeopardy! contestants in 2011 to win a million dollar prize.Future historians may look back at 2020 as a similarly important checkpoint on the road to AI dominance. Why? Because YouTuber Funk Turkey has created a new Led Zeppelin song using the power of AI.Mr Turkey used a set of lyrics provided by – a web service that scrapes the Lyrics Genius database for a particular artist, then cleverly splices together the results using a predictive algorithm known as a Markov Chain to compose a new song – then added some music, before singing the results in the style of Robert Plant. The result? Mountain Man. Eagle-eyed viewers may notice that the video doesn't feature any footage of Led Zeppelin, but Turkey has an explanation: "I know I usually use concert footage of the band for my videos. However, YouTube keeps yanking the video for this one so that means DEPLOY THE STOCK FOOTAGE OF ADORABLE PUPPIES." However, the captivating canines shouldn't distract from the song, which features the kind of lyrics that once made Plant famous as a golden-haired symbol of sexual abundance. "The lyrics.... well, it sure spit out a lot of Robert Plant-esque adlib, which I think turned out okay," says Turkey. "Towards the end with the repeating 'Nevers' in particular, which is something that Markov Chains do – repeat phrases that had been repeated once or twice, but to infinity. It actually repeated the word 'never' almost 37 times, but I had to cut it short to fit the song, and also to freaking breathe."This isn't Funk Turkey's first experiment with AI. Back in April he came up with The Nickelbot, which used the same techniques to compose a new Nickelback song, Nobody Died Every Single Day, and he's gone on to create Great Balls, a song very much in the style of AC/DC, and Power Gravy, an AI-driven tribute to Iron Maiden.  Perhaps this is how Greta Van Fleet got started.

Trump says Biden should take cognitive test -- because US requires 'sharp' leader

FOX News

President Trump joins Fox News medical contributor Dr. Marc Siegel for an exclusive interview on'Tucker Carlson Tonight.' Joe Biden should take the same cognitive test that President Trump recently took, the president said Wednesday during an interview with Fox News medical contributor Dr. Marc Siegel. "In a way he has an obligation to," Trump said of the presumptive Democratic presidential nominee, adding that the presidency requires "stamina" and "mental health." Trump said he took the test to prove to the media that he was fit to serve in the presidency after reports supposedly questioned his cognitive ability. Trump has used the argument that Biden -- at age 77, three years older than Trump -- is too old to run for president . The argument is a cornerstone strategy of Trump's reelection campaign against the former vice president.