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Krylov cubic regularized Newton: A subspace second-order method with dimension-free convergence rate - Amazon Science

Second-order optimization methods, such as cubic regularized Newton methods, are known for their rapid convergence rates; nevertheless, they become impractical in high-dimensional problems due to their substantial memory requirements and computational costs. One promising approach is to execute…

Predictive relevance uncertainty for recommendation systems - Amazon Science

Click-through Rate (CTR) module is the foundation block of recommendation system and used for search, content selection, advertising, video streaming etc. CTR is modelled as a classification problem and extensive research is done to improve the CTR models. However, uncertainty method for these…

Enhancing sell-in and sell-out forecasting using ensemble machine learning method - Amazon Science

Accurate sell-in and sell-out forecasting is a ubiquitous problem in the retail industry. It is an important element of any demand planning activity. As a global food and beverage company, Nestle´ has hundreds of products in each geographical location that they operate in. Each product has its…

Rising Chinese yuan adds to PC price increases | Network World

People looking to buy new PCs or other gadgets will see prices continue to rise after a move by China's central bank to relax the exchange rate of its currency.

FBI turns up faster, more accurate fingerprint identification system | Network World

The FBI today said it's made a long-awaited switch from its Automated Fingerprint Identification System (AFIS) to an upgraded, faster one the FBI calls Advanced Fingerprint Information Technology (AFIT). The AFIT replacement prepares the way for going beyond fingerprint identification to other biometrics, including latent palm prints and facial recognition, the next step in the FBI's multiyear effort called the Next Generation Identification (NGI) system.

Six Hot Workplace Trends for 2011 | Network World

In late 2009, when the unemployment rate reached 10 percent for the first time since the early '80s, everyone hoped that 2010 would be a comeback year. Alas, it wasn't meant to be. After early signs of progress, economic growth sputtered this year and the unemployment rate sits at 9.8 percent as we approach Christmas.

Experts scrutinize 2009’s most notable IT apologies | Network World

We asked the team at Perfect Apology to rate the quality of the apologies issued by top tech companies and executives this year (Apple, Amazon, Microsoft, among them) for their assorted mistakes and misdeeds. And yes, we did this BEFORE Tiger Woods issued his apology today.

Sony introduces three light, bright touch-screen e-readers | Network World

The e-reader market is constantly moving, with new models being introduced (and prices dropping) on almost a weekly rate. The latest additions are from Sony, which has revamped its line of Sony Reader e-book readers. While two out of the three new models don't have wireless connections to a bookstore -- and are therefore missing the instant gratification that Amazon's Kindle offers -- the new devices are sleek and good-looking, with a lot of interesting features.

11 Ways to Prevent Burnout and Improve Work-Life Balance | Network World

In 2006, Chris Loope was working as a consultant implementing a new ERP system for a client. The 18-month project required Loope to clock 80-hour work weeks and to travel frequently between his home in Dallas and his client's office in Atlanta.

FTC sues to stop robocallers | Network World

The Federal Trade Commission today said it was going after three outfits that allegedly made robocalls to sell worthless credit-card interest-rate reduction programs for large up-front fees of as much as $1,495.

WiMax in 2010: Too little, too late? | Network World

By the end of 2010, users in more than 80 U.S. cities may be able to ditch their cable modems, T1 setups and DSL lines -- and the Wi-Fi routers that go with them -- in favor of WiMax (Worldwide Interoperability for Microwave Access) broadband wireless technology.

A $30 Billion US census? | Network World

The number seemed staggering, but there it was. The cost of conducting the census has, on average, doubled each decade since 1970. If that rate of cost escalation continues into 2020, the nation could be looking at a $30 billion census.

Price cut on Palm Pre not a sign of bad sales | Network World

Buried amid the announcement of the new Palm Pixi smartphone was the news that the price of the Palm Pre will drop to $150 after rebates. What gives with Palm and Sprint? Is the pricing move a a reaction to poor sales? Could it foretell a cut-rate price for the smaller Pixi? Not likely.

4G Essentials | Network World

There is plenty of hype around 4G technologies but beyond the rhetoric are happening. 4G technologies basically represent the next stage of wireless data technologies and generally deliver average download rates of 3Mbps or greater. In contrast, today's 3G networks typically deliver average download speeds about one-tenth of that rate. Here's a roundup of the latest coverage of the 4G world.

Advocacy group targets Apple as a tax ‘cheater’ | Network World

A liberal group targets Apple for its stance on returning foreign earnings to the U.S. at a low tax rate.

Atheros sampling 450Mbps 802.11n Wi-Fi chipset | Network World

Chip maker Atheros Wednesday released samples of its powerful new 802.11n Wi-Fi chipset, which tops out with a maximum data rate of 450Mbps for access points and routers, and a signal that's more consistent and resilient.

Groups protest AT&T rate hikes for middle-mile access | Network World

The U.S. Federal Communications Commission must move quickly to set limits on the rates that large telecom carriers charge businesses and competitors for middle-mile access because AT&T is planning significant rate hikes in July, a group of competitors, consumer groups and business customers said.

Six Easy Pieces: How to Do Cost of Ownership Analysis Better | Network World

If cost of ownership analysis is a painful exercise for IT organizations, why has almost every company done it (and continued to do it) multiple times? Simply because management requires an accurate understanding of current IT costs and strengths so they can better assess new ideas and technologies. In this article, we will identify six key elements to effective cost of ownership analysis, which you can use these to improve the accuracy and eliminate the frustration associated with this necessary step in y

Baidu Q3 revenue exceeds projections, profits up 80 percent | Network World

China's largest search engine Baidu reported that net profit in the third quarter was up 80 percent year-on-year, as the company saw strong growth in website traffic, and benefited from improvements made to its online ad services.

Census Bureau error puts texting rate at a fraction of CTIA estimate | Network World

Just how much texting is actually going on is apparently in some disagreement, with numbers for growth in texting contained in a U.S. Census Bureau press release issued today just a fraction of what the private sector has reported through the CTIA.

With rate increase, Sprint bows to 4G consumption reality | Network World

While Sprint isn’t willing to give away its unlimited data plans, the carrier must also make concessions to reality.

Study: US gov’t cybersecurity spending to grow significantly | Network World

U.S. government spending on cybersecurity will grow at a compound rate of 8.1 percent a year between 2009 and 2014, outpacing general IT spending, according to the government analyst firm Input.

AT&T Missouri settles E-Rate fraud lawsuit | Network World

AT&T Missouri has agreed to pay the U.S. government $1.4 million as part of a settlement of a civil lawsuit alleging that the company violated the False Claims Act in connection with the federal E-Rate program, which provides money to help schools and libraries in poor areas connect to the Internet.

EU wants safe volume settings on portable music players | Network World

The European Commission has ordered all makers of portable music players to add a default volume setting of around 80 decibels (dB) and a health warning to all new devices within the next two years.

Physicist: Moore’s Law as we know it is on its last legs | Network World

Moore's Law -- the idea that computing power doubles roughly once every 18 months -- has proved to be surprisingly accurate since it was first outlined by Gordon Moore, a co-founder of Intel.

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