Etiketter

lørdag den 5. juli 2014

Why you should ask why, and how to learn through experimentation.

Today I found this interesting article about why it is important to ask "why", and what the answers will reveal to you as a decision maker.

Furthermore, the article touch on how businesses can use experimentation as a way to drive innovation and change in an organisation.

Find the article on the following link.

http://www.entrepreneur.com/article/235104

onsdag den 25. juni 2014

Making sense of big data - different analysis techniques


Source: http://www.datascienceassn.org/content/descriptive-predictive-prescriptive-analytics


Written by: ironwalker





The goal of Data Analytics (big and small) is to get actionable insights resulting in smarter decisions and better business outcomes. How you architect business technologies and design data analytics processes to get valuable, actionable insights varies.

It is critical to design and build a data warehouse / business intelligence (BI) architecture that provides a flexible, multi-faceted analytical ecosystem, optimized for efficient ingestion and analysis of large and diverse datasets.

There are three types of data analysis:
Predictive (forecasting)
Descriptive (business intelligence and data mining)
Prescriptive (optimization and simulation)


Predictive Analytics

Predictive analytics turns data into valuable, actionable information. Predictive analytics uses data to determine the probable future outcome of an event or a likelihood of a situation occurring.

Predictive analytics encompasses a variety of statistical techniques from modeling, machine learning, data mining and game theory that analyze current and historical facts to make predictions about future events.

In business, predictive models exploit patterns found in historical and transactional data to identify risks and opportunities. Models capture relationships among many factors to allow assessment of risk or potential associated with a particular set of conditions, guiding decision making for candidate transactions.

Three basic cornerstones of predictive analytics are:
Predictive modeling
Decision Analysis and Optimization
Transaction Profiling

An example of using predictive analytics is optimizing customer relationship management systems. They can help enable an organization to analyze all customer data therefore exposing patterns that predict customer behavior.

Another example is for an organization that offers multiple products, predictive analytics can help analyze customers’ spending, usage and other behavior, leading to efficient cross sales, or selling additional products to current customers. This directly leads to higher profitability per customer and stronger customer relationships.

An organization must invest in a team of experts (data scientists) and create statistical algorithms for finding and accessing relevant data. The data analytics team works with business leaders to design a strategy for using predictive information.


Descriptive Analytics

Descriptive analytics looks at data and analyzes past events for insight as to how to approach the future. Descriptive analytics looks at past performance and understands that performance by mining historical data to look for the reasons behind past success or failure. Almost all management reporting such as sales, marketing, operations, and finance, uses this type of post-mortem analysis.

Descriptive models quantify relationships in data in a way that is often used to classify customers or prospects into groups. Unlike predictive models that focus on predicting a single customer behavior (such as credit risk), descriptive models identify many different relationships between customers or products. Descriptive models do not rank-order customers by their likelihood of taking a particular action the way predictive models do.

Descriptive models can be used, for example, to categorize customers by their product preferences and life stage. Descriptive modeling tools can be utilized to develop further models that can simulate large number of individualized agents and make predictions.

For example, descriptive analytics examines historical electricity usage data to help plan power needs and allow electric companies to set optimal prices.


Prescriptive Analytics

Prescriptive analytics automatically synthesizes big data, mathematical sciences, business rules, and machine learning to make predictions and then suggests decision options to take advantage of the predictions.

Prescriptive analytics goes beyond predicting future outcomes by also suggesting actions to benefit from the predictions and showing the decision maker the implications of each decision option. Prescriptive analytics not only anticipates what will happen and when it will happen, but also why it will happen.

Further, prescriptive analytics can suggest decision options on how to take advantage of a future opportunity or mitigate a future risk and illustrate the implication of each decision option. In practice, prescriptive analytics can continually and automatically process new data to improve prediction accuracy and provide better decision options.

Prescriptive analytics synergistically combines data, business rules, and mathematical models. The data inputs to prescriptive analytics may come from multiple sources, internal (inside the organization) and external (social media, et al.). The data may also be structured, which includes numerical and categorical data, as well as unstructured data, such as text, images, audio, and video data, including big data. Business rules define the business process and include constraints, preferences, policies, best practices, and boundaries. Mathematical models are techniques derived from mathematical sciences and related disciplines including applied statistics, machine learning, operations research, and natural language processing.

For example, prescriptive analytics can benefit healthcare strategic planning by using analytics to leverage operational and usage data combined with data of external factors such as economic data, population demographic trends and population health trends, to more accurately plan for future capital investments such as new facilities and equipment utilization as well as understand the trade-offs between adding additional beds and expanding an existing facility versus building a new one.

Another example is energy and utilities. Natural gas prices fluctuate dramatically depending upon supply, demand, econometrics, geo-politics, and weather conditions. Gas producers, transmission (pipeline) companies and utility firms have a keen interest in more accurately predicting gas prices so that they can lock in favorable terms while hedging downside risk. Prescriptive analytics can accurately predict prices by modeling internal and external variables simultaneously and also provide decision options and show the impact of each decision option.

fredag den 24. februar 2012

Dropbox Can Now Automatically Sync Your Android Photos (And It Has More Up Its Sleeve) | TechCrunch

Dropbox Can Now Automatically Sync Your Android Photos (And It Has More Up Its Sleeve): dropboxshot

Last year, Dropbox raised a whopping $250 million funding round at a valuation in the ballpark of $4 billion. The raise had been rumored for months so it didn’t come as a huge surprise, but it still raised plenty of eyebrows. Because while Dropbox is totally awesome (I use it every day), at this point people see it as a convenient way to sync their files between computers — which it already does pretty well. So what’s all the money for?


Today, we’re getting our first taste of what’s next, and what cofounder and CEO Drew Houston calls Dropbox’s mission to solve all of the “hidden problems” that people have with technology, many of which we’ve simply become accustomed to dealing with.


Their first solution to one of these hidden problems? Helping you keep all of your photos, from all of your devices, in one place. And to get things started, they’re launching a new version of their Desktop and Android clients that’ll automatically upload your photos to your Dropbox account. Snap a few photos on your phone, and, without having to hook up any wires, they’ll be on your computer within a minute or two.


I know what you’re thinking, because it’s the first thing I said to CEO Drew Houston and Product Manager Aseem Sood: “err, don’t iCloud and Google+ already let you do this?”


I’m pretty sure they saw it coming.


The first thing they pointed out is that there are a lot of people out there who aren’t using either of those services. Most Dropbox users aren’t using Macs at all, so iCloud is out of the question, and Google+ is still just getting started (yes, the service has lots of users signed up, but how many of them are using it and have the app installed on their phone?).


Dropbox also does a couple of things that Google+ doesn’t: for one, it’ll automatically sync the full-sized version of your images — Google+ sync will downscale images to 2048px at their longest edge. And Dropbox can also sync any photos it detects on your PC: if you plug in a camera or SD card into your computer and it detects images, you’ll have the option of automatically adding them to your Dropbox folder.


This new feature could potentially eat up a significant amount of space in your Dropbox folder, so Dropbox will also be gradually boosting the limit for free users from 2GB to 5GB (they won’t do this all at once — as you use the photo feature, you’ll be able to gradually accrue more free storage). Houston explains that the goal of this feature is to make life easier for people, not to get them to upgrade to larger Dropbox storage limits, which is why they’re offering the additional free space.


It sounds great, and I’ll be enabling it immediately, but there are still some obvious areas for improvement. Images that are synced to your Dropbox account are placed in a special Photos folder, but they’re just sorted in chronological order — there isn’t any intelligence around event or location detection, for example. Another potential issue is that Dropbox doesn’t offer any tools for managing or editing these photos, so it’ll be up to you to drag them into iPhoto or another photo editing app (the best solution will likely be to make your Dropbox folder your default image folder).


Houston agrees that they’re just beginning to scratch the surface of what’s possible here, so I’m sure we’ll see improvements soon. Oh, and don’t worry iOS users — Dropbox will be updating its app to include this functionality soon as well.


It’s worth nothing that, while this is the first time Dropbox has baked this functionality into its official app, it’s been possible to do the same thing on Android using third-party applications that take advantage of the Dropbox API. Of course, the official app has a much bigger install base.


iPhone 5 may sport a new “micro” dock connector | VentureBeat

iPhone 5 may sport a new “micro” dock connector:

iPhone-5 by CiccareseDesign


Apple may be getting ready to ditch the current dock connector used in iPods, iPhones, and iPads in favor of a smaller version — meaning you’ll possibly have to keep up with yet another adapter to use all the latest accessories for iOS devices.


Annoyances aside, Apple could have a very practical reason for making the change, according to a iMore report that cites an anonymous source. A smaller “micro” docking port would give the company more room for other important components within the iPhone 5, which could be the first device to receive the new dock treatment. And since the iPhone 4S has a much shorter power lifespan than all the models preceding it, the most likely use for that additional space would be to include a bigger battery.


The new docking port is said to be a new design rather than the outdated microUSB standard used by the rest of the mobile phone industry.


It’s also worth noting that Apple is moving away from its reliance of transferring information to its mobile devices through a power cord. As part of Apple’s iCloud push, the company is now enabling more OS software, app, and digital media updates over the air. That said, the dock connector will be little more than a way to charge the device as well as connect to third-party accessories.


The latest rumors speculate that the iPhone 5 will hit sometime before the end of 2012, and will feature a larger screen as well as a more curvy design.


[iPhone 5 concept image via ciccaresedesign]


VB Mobile SummitVentureBeat is holding its second annual Mobile Summit this April 2-3 in Sausalito, Calif. The invitation-only event will debate the five key business and technology challenges facing the mobile industry today, and participants — 180 mobile executives, investors, and policymakers — will develop concrete, actionable solutions that will shape the future of the mobile industry. You can find out more at our Mobile Summit site.



Filed under: mobile, VentureBeat



Getting Androids and iPhones to Play Nice - Businessweek

Getting Androids and iPhones to Play Nice - Businessweek:
Developers use HTML 5 to build apps that work across devices

Pity the programmer. The path used to be so clear. After coming up with the next billion-dollar software idea, the only decision to be made was whether to build it for just Windows or Mac as well. Now the options are far more diverse. Mobile platforms like iOS, Android, and Windows Phone all vie for coders’ attention alongside desktop operating systems and Web hubs such as Facebook. Each one requires time and often a different skill set.

The problem is particularly acute in video games, where iPhone users expect to be able to interact with their friends even if, God forbid, they’re using a different device. Michael Carter, a 27-year-old software engineer, thinks he has a solution in HTML 5. Carter’s company, Game Closure, builds tools that let game developers write one version of their genius idea, then publish it anywhere. In Game Closure’s take on the card-game Hearts, for instance, friends in different cities can play against each other using Facebook, an iPhone, or an Android tablet. “It’s the future,” says Carter of HTML 5.

At its core, HTML 5 is a set of standards that lets Web browsers understand animations, videos, graphics, and other multimedia content without the need to download a plug-in like Adobe’s (ADBE) Flash, which is how most Web videos and graphics are displayed today. Many technologists—including the late Steve Jobs—have criticized Flash for being buggy and draining battery life. The goal of HTML 5, which is gradually making its way into all modern browsers, including ones on mobile devices, is to make sites look and feel just like apps downloaded directly to a phone or desktop. Until recently, that was more of a promise than a reality.

That’s changing in part because of the steamroller effect ofApple’s (AAPL) iPad and iPhone, which don’t run Flash content. Game Closure’s write-once, publish-anywhere tools for game makers attracted Zynga (ZNGA), which offered $100 million to buy the startup, according to people familiar with the matter who were not authorized to discuss the negotiations. Carter won’t go into specifics other than to acknowledge that “we definitely walked away from a pretty large payout. But we have a larger vision for game development.” He secured $12 million in a venture round led by Highland Capital to build his company instead and plans to make money by licensing his technology or signing revenue-sharing agreements with those who use it.

Zynga is hiring its own HTML 5 engineers to create new titles, as is Electronic Arts (ERTS).Amazon.com (AMZN) debuted an HTML 5 version of its mobile website last year, and in early February IBM (IBM) bought the development company Worklight to create HTML 5 business applications for phones and tablets. “We’re at a technological inflection point,” says Tom Conrad, the executive vice president of product at the music-streaming site Pandora (P), which rebuilt its main website in HTML 5 in 2011.

As HTML 5’s use has expanded, software engineers proficient in it are in short supply. “Just call a recruiter and ask for one—see how long it takes,” says Adam Miller, CEO of Cornerstone Software, which builds applications for HR managers. He says HTML programmers can make up to $250 an hour.

Some worry the rush to HTML 5 could lead to shoddier software. Since the very idea behind HTML 5 is universality, it may discourage developers from tailoring their code to the capabilities of specific devices. Not every phone has an accelerometer that can sense tilting, for instance. “HTML 5 is by far the greatest lowest common denominator ever invented,” says Phil Libin, CEO of Evernote, a note-taking application. “But it’s still the lowest common denominator.”

The bottom line: HTML 5 developers are in demand and can earn as much as $250 an hour, though some say tailoring apps to specific devices is preferable.