Digital transformation is something companies have been doing for decades. If this is the case, why is there so much talk of digital transformation now and what's different about it today? CIOs are evaluating what type of cloud technologies to use and how extensive these deployments should be. Additionally, no one would build an application or service today without making it mobile-ready. Yet, several factors make digital transformation different today.

Tech giants are hungry for artificial intelligence. In a race to create the best AI solutions in an increasingly hot sector, U.S. tech behemoths like Alphabet's Google and iPhone maker Apple have been quietly snapping up dozens of artificial intelligence companies over the last five years, according to a recent report from analysis firm CB Insights. The firm's data sheds new light on a trend that's been evolving for years. Nearly 140 private companies working to advance AI technology have been acquired since 2011, including 40 buyouts just this year, CB noted. From Google's Assistant to Apple's Siri; Microsoft's Cortana to Facebook chatbots, tech companies appear to be locked in a fierce competition to create autonomous technology that can understand users' needs, and provide information quickly and reliably, CB Insights noted.

MIT OpenCourseWare 390,277 views Information Theory Today: ECE Lecturer Series - Duration: 56:01.

Model evaluation metrics are used to assess goodness of fit between model and data, to compare different models, in the context of model selection, and to predict how predictions (associated with a specific model and data set) are expected to be accurate. Confidence intervals are used to assess how reliable a statistical estimate is. Wide confidence intervals mean that your model is poor (and it is worth investigating other models), or that your data is very noisy if confidence intervals don't improve by changing the model (that is, testing a different theoretical statistical distribution for your observations.) Modern confidence intervals are model-free, data -driven: click here to see how to compute them. A more general framework to assess and reduce sources of variance is called analysis of variance.

More than 30 startups and companies like Domino's Pizza, Food Network, and Product Hunt launched new actions for Google Home today. Actions, like Amazon Alexa skills, give a user control and command of Google Assistant. This marks the largest rollout of actions since Google Home went on sale in October and since the Google Assistant platform to make commands for Google Home launched last week. There are currently 35 third-party conversation actions you can use on Google Home, 32 of which were released today. "Conversation Actions from early access partners will begin rolling out over the coming weeks -- starting today. We're excited to see what developers build!,"

Johann Sebastian Bach is widely considered one of the great composers of baroque music. Bach lived and worked in Germany during the 18th century and is revered for the beauty of his compositions and his technical mastery of harmony and counterpoint. One form of music that Bach excelled in was a type of polyphonic hymn known as a chorale cantata. These are based on Lutheran texts and sung by four voices. The composer starts with a well-known tune which is sung by the soprano and then composes three harmonies sung by the alto, tenor, and bass voices.

What if you knew the concerns that were uppermost in your customer's mind, right now? Or, which of the folks in your Eloqua database are most intensively researching the topic of the white paper you're about to blast out -- this week? Or, best of all: Which Fortune 1000 companies are intent about buying something you have on offer -- ASAP? I recently learned these things actually are knowable, today, given just a few machine-learning algorithms and a database the size of a small outer planet. As a former editor-in-chief and current content marketer, such news makes my heart race.

Health care is moving away from the traditional fee-for-service model to an outcomes-based model that takes a more comprehensive view of treatment and prevention. For health insurers, this means reacting dynamically and changing business models to stay responsive to market demands. New developments in cognitive computing can help insurers stay on top of changing consumer and regulatory expectations. Historically, health insurance has been a volume game. Insurers understood their business in terms of the number of claims processed, but rarely looked at other variables, including how much expense and repetitive work goes into claims management or how specific groups of policyholders use their health insurance.

Over a shaky WebEx connection, NoHold CEO and Co-Founder Diego Ventura showed me how one can take form in just a few moments. The chatbot had a very simple job. It was created to be an Amazon Kindle savant. You could ask it anything, like "Where's the Wi-Fi settings?" Normally, this would take time, effort and the combined skills of a team of software developers.

Knowmail, a company building a Personalized Artificial Intelligence platform to help employees communicate and collaborate better, announced it closed a new $3.5 million investment led by CE Ventures with managing partner Tayman Kan also joining the board. This round also includes existing shareholders AfterDox, Plus Ventures, 2B Angels, INE Ventures and notable private investors. The additional funding will be utilized to continue building out Knowmail's functionality and expand its customer base globally. Founded in 2014, Knowmail is led by Haim Senior (CEO), previously executive at EMC, seasoned entrepreneur Oded Avital (COO) and previous Verint Systems ASG director Avi Mandelberg (CTO) in order to, in their own words, "liberate corporate employees from slavery created by information overload". "We are thrilled to lead this latest round of funding for Knowmail and strongly believe in the team and vision."