Topic models are widely used for thematic structure discovery in text. But traditional topic models often require dedicated inference procedures for specific tasks at hand. Also, they are not designed to generate word-level semantic representations. To address these limitations, we propose a topic modeling approach based on Generative Adversarial Nets (GANs), called Adversarial-neural Topic Model (ATM). The proposed ATM models topics with Dirichlet prior and employs a generator network to capture the semantic patterns among latent topics. Meanwhile, the generator could also produce word-level semantic representations. To illustrate the feasibility of porting ATM to tasks other than topic modeling, we apply ATM for open domain event extraction. Our experimental results on the two public corpora show that ATM generates more coherence topics, outperforming a number of competitive baselines. Moreover, ATM is able to extract meaningful events from news articles.

Recently, many AI researchers and practitioners have embarked on research visions that involve doing AI for "Good". This is part of a general drive towards infusing AI research and practice with ethical thinking. One frequent theme in current ethical guidelines is the requirement that AI be good for all, or: contribute to the Common Good. But what is the Common Good, and is it enough to want to be good? Via four lead questions, I will illustrate challenges and pitfalls when determining, from an AI point of view, what the Common Good is and how it can be enhanced by AI. The questions are: What is the problem / What is a problem?, Who defines the problem?, What is the role of knowledge?, and What are important side effects and dynamics? The illustration will use an example from the domain of "AI for Social Good", more specifically "Data Science for Social Good". Even if the importance of these questions may be known at an abstract level, they do not get asked sufficiently in practice, as shown by an exploratory study of 99 contributions to recent conferences in the field. Turning these challenges and pitfalls into a positive recommendation, as a conclusion I will draw on another characteristic of computer-science thinking and practice to make these impediments visible and attenuate them: "attacks" as a method for improving design. This results in the proposal of ethics pen-testing as a method for helping AI designs to better contribute to the Common Good.

It's all a game of construction -- some with a brush, some with a shovel, some choose a pen. I'm an artist, and I've also been building commercial software for a long while. But art and software used to be two parallel tracks in my life; save for the occasional foray into generative art with Processing and computational photography, all my art was analog… until I discovered GANs (Generative Adversarial Networks). Since the invention of GANs in 2014, the machine learning community has produced a number of deep, technical pieces about the technique (such as this one). This is not one of those pieces.

The following MBW blog comes from Taishi Fukuyama – who has written, arranged and produced some of Japan and Korea's biggest pop stars including Juju, BoA, Tohoshinki and more. He has also represented leaders in music tech for the Japanese market, including Spotify, The Echo Nest, and CI (Consolidated Independent). Taishi (pictured) also co-founded Qrates, a groundbreaking vinyl-on-demand service. He is currently the co-founder and COO of music-making startup, Amadeus Code – whose core product is an'artificial intelligence-powered songwriting assistant'. Would you buy an idea from a machine?

Spotify has a treat in store for Premium for Family subscribers in the US: you can claim a free Google Home Mini. The offer will be available for current and new master account holders starting Thursday, and you have until the end of the year to register for the smart speaker. Those on the $15/month plan can share their Spotify subscriptions among six family members, who can use Premium on their own accounts. With the Voice Match feature, Home Mini can recognize who's speaking and personalize music playback for them. It should snag Spotify some new subscribers, while Google could get more people hooked on YouTube Music Premium -- Home Mini comes with a three-month trial of that service.

I think the video is very attractive and easy to understand. Can I leave another suggestion for beginners here? It's an Introduction to Machine Learning guide I've been reading, a colleague created it.

If you make a purchase by clicking one of our links, we may earn a small share of the revenue. However, our picks and opinions are independent from USA TODAY's newsroom and any business incentives. Whether you're buying for a family member, a coworker, or your nerdy spouse, knowing which tech gizmos and gadgets are big-ticket items this holiday season ain't easy. Does anything evolve faster than technology? By the time you come up with an answer, there's going to be a new wave of fitness trackers to drool over.

The Fire TV Stick 4K is the media streamer that Amazon should have released years ago. Cooler than a Roku and much cheaper than an Apple TV, the new $50 streaming dongle offers 4K HDR video in every conceivable format while outperforming Amazon's more expensive Fire TV Cube ($120) and third-generation Fire TV ($70, now discontinued). It also corrects the stupidest mistake of previous Fire TV models by including TV volume and power controls on its remote control. Factor in powerful Alexa voice commands and you have a compelling 4K HDR streamer at any price, let alone the lowest price on the market. The Fire TV Stick 4K won't be for everyone.

The digital landscape is changing. What media companies once took for granted – channel loyalty, captive audiences, and scaling on the back of a portfolio full of tangible products – has fallen by the wayside. In place of Thursday night programming blocks and CDs, we now have streaming services and custom content experiences. Behind it all lies artificial intelligence designed to catapult business into the upper echelons of intelligent enterprise. The question is what all of this means for media companies looking to stay on the cutting edge of innovation while still speaking to their core audiences.

Spotify reached 83 million subscribers. Spotify is giving a Google Home Mini speaker to family plan subscribers for a song – free. The music streaming service said Wednesday it would give master account owners of Premium for Family plans a free speaker that uses the artificial intelligence-infused, voice-driven Google Assistant. Spotify Premium for Family subscribers can have personalized Spotify accounts for up to six family members for $14.99 a month. You can already ask Google Home devices to play music on Spotify, but this deal aims to increase the reach of both the music service and the voice-friendly speakers.