Variational inference is increasingly being addressed with stochastic optimization. In this setting, the gradient's variance plays a crucial role in the optimization procedure, since high variance gradients lead to poor convergence. A popular approach used to reduce gradient's variance involves the use of control variates. Despite the good results obtained, control variates developed for variational inference are typically looked at in isolation. In this paper we clarify the large number of control variates that are available by giving a systematic view of how they are derived. We also present a Bayesian risk minimization framework in which the quality of a procedure for combining control variates is quantified by its effect on optimization convergence rates, which leads to a very simple combination rule. Results show that combining a large number of control variates this way significantly improves the convergence of inference over using the typical gradient estimators or a reduced number of control variates.

The EV manufacturer is supported by a robust online community. But Elon Musk's politics and overblown hype about Full Self-Driving are turning some loyalists away. This month, Tesla customers erupted in outrage over what some called a " bait and switch " by the electric vehicle manufacturer. Initially, the company had offered to transfer the Full Self-Driving feature, which is now only available through a subscription model but could once be purchased for a "lifetime" fee that ran as high as $15,000, to any new Tesla purchased by March 31. The deal was most tempting for drivers already enticed by a new base Cybertruck model that cost just $59,990, a price that CEO Elon Musk soon clarified would only last for 10 days, leaving potential buyers a very small window to make up their minds. Then Tesla quietly amended the language of the FSD transfer agreement, stipulating that customers would need to take delivery of a Tesla by March 31 in order to swap their FSD from their last vehicle to the next.

What are the symptoms of meningitis and is there a vaccine? Two people have died following an outbreak of meningitis in Kent. The death of a year 13 pupil at Queen Elizabeth's Grammar School in Faversham was confirmed by the local MP on Monday. The second person who died was a student at the University of Kent. The UK Health Security Agency (UKHSA) said it was notified of 13 cases with signs and symptoms of meningitis and septicaemia from Friday to Sunday in the Canterbury area.

A bicycle wheel with guitar strings, a touch-operated synth, and the "Demon Box" were just a few of the new instruments on show at Georgia Tech's Guthman Musical Instrument Competition this weekend. An open-source, touch-operated synth built to resemble a puzzle piece and keep accessibility at the forefront. A pressure-sensitive surface allows for polyphonic synthesis that can be triggered by hands, feet, textured fabrics, or even Play-Doh. Brand new sounds floated through a concert hall at Georgia Tech this weekend, as the 28th annual Guthman Musical Instrument Competition showcased an array of new instruments from around the world--and crowned one champion. Ten finalists, chosen from candidates who built all kinds of new music-making devices, converged in Atlanta, Georgia, to present their instruments to a panel of judges.

In the third season of "The Comeback," Kudrow has brought back her character Valerie Cherish, which had its roots at the Groundlings. A visitor to Stage 24 on the Warner Bros. lot, in Burbank, last November could be forgiven for thinking that the television show being filmed there was a sitcom called "How's That?!" The parking spaces outside were marked with "How's That?!" signs. Inside, director's chairs with the "How's That?!" logo were arranged around video monitors. The set--a New England bed-and-breakfast, with kitschy floral wallpaper--was surrounded by sitcom cameras and buzzing crew members wearing headsets. A studio audience filed into the bleachers, and a warmup comic urged them to "shake those funny bones." Then, with mounting gusto, he introduced the star of "How's That?!": "Here she is . . . the one and only . . . the living legend . . . She emerged to applause, in a potter's smock, wavy red hair under a bandanna, looking like a cross between Lucy Ricardo and Mrs. Garrett ...

Readers respond to Burkhard Bilger's piece about turbulence, Gideon Lewis-Kraus's article on Anthropic, Ava Kofman's story concerning surrogacy, and Katy Waldman's essay about fawning. Burkhard Bilger's recent story about aviation turbulence opens with a dramatic account of a Singapore Airlines flight, SQ321, in May, 2024 (" Buckle Up," March 9th). The plane hit clear-air turbulence over Myanmar's Irrawaddy River, causing it to drop almost two hundred feet in an instant. During the Second World War, U.S. Army Air Forces transport planes confronted the same weather system. Flying from northeast India, over "the Hump" of intervening mountain ranges, to southwestern China, pilots routinely encountered turbulence that dropped and lifted their aircraft not hundreds of feet but thousands.

Poodle crossbreeds have grown overwhelmingly popular, sparking controversy in dog parks and kennel clubs alike. The features of doodles such as Peaches (above), a goldendoodle, have become the canine equivalent of Instagram face. Meet the Breeds, the American Kennel Club's annual showcase of purebred dogs, took place over two eye-wateringly cold days in early February at the Javits Center, in Manhattan. About a hundred and fifty of the two hundred and five varieties recognized as official breeds by the A.K.C., the long-standing authority in the U.S. dog world, were in attendance for the public to ogle, fondle, and coo "So cute!" to, including the basset fauve de Bretagne, a hunting hound from France that's one of three newly recognized breeds recently allowed into the purebred pantheon. Some of the dogs had competed in the Westminster Kennel Club Dog Show earlier in the week, and past champions had their ribbons on display. In spite of the frigid weather, pavilions hosting the more popular breeds--the pug, the Doberman pinscher, the Great Dane, the St. Bernard--were packed. Lesser-known varieties, such as the saluki, the Löwchen, and the Lapponian herder, drew sparser crowds. There were exhibition spaces for each breed, and on the back walls were three adjectives supposedly describing that particular type of dog's temperament. There is, in fact, no evidence that temperament is consistent within a breed, but the idea is deeply rooted in dogdom. I stopped to caress the velvety ear leather of a pharaoh hound ("Friendly, Smart, Noble"), a sprinting breed once used to hunt rabbits in Malta; accept kisses from a Portuguese water dog, bred to assist with retrieving tackle ("Affectionate, Adventurous, Athletic"); and have my photograph taken with a Leonberger, a German breed from the town of Leonberg, in southwest Germany ("Friendly, Gentle, Playful"). No one was supposed to be openly selling dogs, but, if you asked, the breeders would share their information. Excluding what are known as companion dogs, like the Leonberger, most of the animals at the show were designed for a purpose that is no longer required of them. In Great Britain, foxhounds are legally barred from chasing foxes. Consider the fate of the otterhound, an ancient variety with a noble heritage which was once used in the U.K. to hunt river otters, which were prized for their thick fur and disliked by wealthy landowners because they ate fish in their stocked ponds.

We're thrilled to announce a new company-wide initiative. This week, we'll be rolling out a robust suite of new A.I. tools, designed to future-proof our workflows and insure that we remain best in class when it comes to employing the very biggest tools in the white-collar workforce. As part of this rollout, you can expect enhanced collaboration with a range of newly A.I.-optimized losers and douche bags. Some of these tools may feel familiar, but please note that they have undergone a meaningful transformation in the past six months, and are now fully agentic when it comes to annoying you. Please begin working with these tools immediately.

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As the legal war over how to regulate prediction markets rages on, financial institutions are embracing the industry anyway. When Troy Dixon first suggested incorporating prediction markets into the electronic trading platform where he works, he was met with incredulity. "People told us we were crazy," Dixon, Tradeweb's cohead of global markets, tells WIRED. But after the company announced it was partnering with Kalshi in February, Dixon says, the mood changed dramatically. "We've been inundated with calls," he says.