Bibliographic analysis considers the author's research areas, the citation network and the paper content among other things. In this paper, we combine these three in a topic model that produces a bibliographic model of authors, topics and documents, using a nonparametric extension of a combination of the Poisson mixed-topic link model and the author-topic model. This gives rise to the Citation Network Topic Model (CNTM). We propose a novel and efficient inference algorithm for the CNTM to explore subsets of research publications from CiteSeerX. The publication datasets are organised into three corpora, totalling to about 168k publications with about 62k authors. The queried datasets are made available online. In three publicly available corpora in addition to the queried datasets, our proposed model demonstrates an improved performance in both model fitting and document clustering, compared to several baselines. Moreover, our model allows extraction of additional useful knowledge from the corpora, such as the visualisation of the author-topics network. Additionally, we propose a simple method to incorporate supervision into topic modelling to achieve further improvement on the clustering task.

President Obama, in his final address as president before the U.N. General Assembly, called Tuesday for more global cooperation especially in helping refugees from war-torn countries – while making only passing reference to the Islamic State and the ever-expanding scourge of like-minded terror groups. The president called for a "course correction" for globalization to ensure nations don't retreat into a more sharply divided world, while pushing back against an isolationist approach gaining popularity in many countries. He advocated for open democracies and open economies, while railing against the example set by Russia and calling for more tolerance in all nations. He also took what appeared to be a jab at Donald Trump, saying: "The world is too small for us to simply be able to build a wall" and prevent extremism from affecting societies. With that message in hand, Obama urged nations to "follow through even when the politics are hard," in helping refugees fleeing conflict.

Microsoft says it is going to "solve" cancer in the next 10 years. The company is working at treating the disease like a computer virus, that invades and corrupts the body's cells. Once it is able to do so, it will be able to monitor for them and even potentially reprogram them to be healthy again, experts working for Microsoft have said. The company has built a "biological computation" unit that says its ultimate aim is to make cells into living computers. As such, they could be programmed and reprogrammed to treat any diseases, such as cancer.

The Netflix logo is shown in this illustration photograph. Editor's Note: This is the third in a series of excerpts we are publishing from sociologist Jerry Davis's new book, "The Vanishing American Corporation: Navigating the Hazards of a New Economy." For more on the topic, watch last week's Making Sen e report below. Suppose you wanted to start an enterprise without leaving your couch. Imagine a hypothetical product: the iPhone Remote Drone Assassin App.

It's what we feel are the most important reads.

Around midnight one Saturday in January, Sarah Jeong was on her couch, browsing Twitter, when she spontane ously wrote what she now bitterly refers to as "the tweet that launched a thousand ships." The 28-year-old journalist and author of The Internet of Garbage, a book on spam and online harassment, had been watching Bernie Sanders boosters attacking feminists and supporters of the Black Lives Matter movement. In what was meant to be a hyper bolic joke, she tweeted out a list of political carica tures, one of which called the typical Sanders fan a "vitriolic crypto racist who spends 20 hours a day on the Internet yelling at women." The ill-advised late-night tweet was, Jeong admits, provocative and absurd--she even supported Sanders. But what happened next was the kind of backlash that's all too familiar to women, minorities, and anyone who has a strong opinion online. By the time Jeong went to sleep, a swarm of Sanders supporters were calling her a neoliberal shill. By sunrise, a broader, darker wave of abuse had begun. She received nude photos and links to disturbing videos. One troll promised to "rip each one of [her] hairs out" and "twist her tits clear off." The attacks continued for weeks. "I was in crisis mode," she recalls.

Russia and Syria on Saturday accused U.S.-led forces of launching an airstrike that killed 62 Syrian soldiers and wounded more than 100 at an air base in eastern Syria. U.S. Central Command, which oversees military operations in the Middle East, said in a statement that American warplanes carried out a strike south of Dair Alzour but it could not confirm that they hit Syrian forces. "Coalition forces believed they were striking a Daesh fighting position that they had been tracking for a significant amount of time before the strike," the statement said, using an Arabic acronym for Islamic State. "The coalition airstrike was halted immediately when coalition officials were informed by Russian officials that it was possible the personnel and vehicles targeted were part of the Syrian military." There have been fears that the U.S. military could accidentally strike Syrian or Russian forces since the air campaign against Islamic State began more than two years ago.

Looking around at the natural world, have you ever wondered why some groups of organisms contain huge numbers of species while others are seemingly barren? Take insects as an example, animals which evolved around 480 million years ago. There are perhaps 6 million species living in all manner of environments, and occupying an incredible diversity of niches. Have you ever wondered why some groups of organisms contain huge numbers of species while others are seemingly barren? Plants have had a species production rate more than twice that of animals, while complex organisms (multicellular eukaryotes) have produced new species at a rate almost 10 times that of simpler one (protists and prokaryotes). Sex seems to have been a major catalyst for increasing the rate at which new species formed, perhaps explaining its success as an evolutionary strategy.

It's real and it's here to stay. Whether you are in marketing, operations or finance, machine learning data can help you do what you do better. In this blog post, I outline 7 reasons why Machine Learning is here to stay: Customer Churn, Customer Segmentation, Buyer Behavior, Asset Monitoring, Demand Forecasting, Fraud Detection and Anomaly Detection. We often say "You have 1,000 customers on January 1. You have 1,000 customers on December 31. How many customers did you lose?"

Some are calling drone racing the sport of the future with the drones, or quads, as the racers call them, flying around obstacle courses at up to 160km/h (100mph). Christian Parkinson has been to meet two of the South African racers taking part in next month's drone world championships to find out what the sport is all about and what skills you need to get to the top.