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All Blog Posts Tagged 'models' (15)

Intent – Solving some problems with ease, others with a little work, and others not at all

Some background

The notion of intent has become stylish. Like other terms that resonate in the community there is a huge temptation to hop on board the train, with ticket, luggage, and destination all sacrificed on the altar of timing. There are some things that intent is a requisite for doing, some problems that have been taken off the table that intent solves easily, and some other things that all the intent in the world can’t fix. I’d like to go over that here. I’m also…

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Added by Daniel Martin on March 14, 2018 at 10:00am — No Comments

Trend Analysis of Fragmented Time Series: Hypothesis Testing Based Adaptive Spline Filtering Method

Missing data present significant challenges to trend analysis of time series. Straightforward approaches consisting of supplementing missing data with constant or zero values or with linear trends can severely degrade the quality of the trend analysis, which significantly reduces the reliability of the trend analysis. …

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Added by Ted on October 31, 2017 at 7:30pm — No Comments

Operational Data and Social Justice

I spotted an interesting book in my local library recently:  The Final Report of the Truth and Reconciliation Commission of Canada [1].  I thought to myself, our government spent considerable resources on this commission.  I should at least browse through the final report.  I flipped through the first few pages.  I found a note saying that the contents are public domain.  In this blog, I reproduce some of the contents of the report to create a setting for my discussion on operational data. …

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Added by Don Philip Faithful on August 6, 2017 at 5:00am — No Comments

Science of the Body - Different Kind of Risk Reward Analysis

I was wondering how to approach this blog when I decided to toast some raisin-bread for breakfast.  Shortly after I started eating it, I began coughing.  I have shared this “type” of story with a few people.  I often continue eating something regardless of my exact circumstances - that is to say, oblivious to the consequences.  As I ate more of the raisin-bread and my coughing worsened, I eventually reached for my inhaler.  (I have been diagnosed with borderline asthma now by two doctors.) …

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Added by Don Philip Faithful on May 13, 2017 at 8:00am — No Comments

Being an Ontologist

I am sometimes asked whether I am working on the stats, whether I am making progress on the stats, and what I do with all of the stats.  People are also prone to hyperbole.  I am told that I sure work on a lot of stats, I am always keeping myself busy doing stats, and I am the person to go to for stats.  I suppose my real job is more mysterious than the one others imagine that I do.  I first want to explain that for everyday people, the term “stats” or “statistics” often means historical…

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Added by Don Philip Faithful on March 11, 2017 at 10:00am — No Comments

KIC 8462852: Models of transits

Update Sep. 2016: A model with less than a third of the error can be found here.

KIC 8462852 is a star that has been getting a fair amount of attention. It occasionally has unusual dips in brightness, according to Kepler telescope observations. Natural explanations for the…

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Added by Jose Solorzano on September 27, 2016 at 7:00am — No Comments

Quality of Things



"Measurement owes its existence to Earth; estimation of quantity to measurement; calculation to estimation of quantity; balancing of chances to calculation; and victory to balancing of chances." - Sun Tzu, The Art of War (Translated by L. Giles)

The quote from Sun Tzu seems to suggest how a military leader gathers data; adapts to different situations; and makes decisions weighing the circumstances. It says that the balancing of chances depends on "calculation." I…

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Added by Don Philip Faithful on April 18, 2015 at 6:20am — 4 Comments

Value-Liquidity Cycle

I made a recent discovery that I would like to share with the community. In my previous blog, I introduced a special algorithmic shell that distributes stocks based on their price movements (along the x-axis) and volume movements (y-axis). Using this shell, it is possible to visualize the trading behaviours of dozens of stocks simultaneously. I noticed one day that the stocks seemed to be lining up in formation. I decided to test the accuracy of my visual interpretation. Below I present the…

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Added by Don Philip Faithful on March 22, 2015 at 5:22am — No Comments

Structural Data Objects

In my previous blog on the Hopscotch and Robots simulation environment, I discussed the use of structural data extracted from hypothetical and real-life organizational events. In the current blog, I will be briefly covering conceptual issues more focused on the nature of the structural data itself including its theoretical significance.

Structural data holds information about the relationship between events.…

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Added by Don Philip Faithful on January 18, 2015 at 8:10am — No Comments

True Freedom - Algorithmic Man Unplugged

Thermometers and scales to measure weight appeared in retail outlets long ago. Blood pressure monitors perhaps came later. Pedometers and heart-rate monitors seem more recent - possibly closer to my time. I saw several devices while doing this blog intended to electronically record among other things hours of sleep; these are designed to be worn on the body all the time. A couple of weeks ago, I bought something to give the heart rate and blood oxygen saturation level. I consider it a real…

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Added by Don Philip Faithful on November 8, 2014 at 9:18am — No Comments

Dark Art of Warping



The celebrity of Toronto's mayor has certainly drawn a lot of attention to the city in recent years. Several candidates are now running for Rob Ford's job. Since the mayor is currently undergoing treatment for cancer, he decided to withhold his candidacy in the upcoming municipal election. Being a longtime resident of Toronto, and being aware of the city's wealth and poverty, I'm always interested in how these competing needs play out when it is time to vote.  Consider the interesting…

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Added by Don Philip Faithful on October 11, 2014 at 6:07am — No Comments

Universal Data Model - A Really Different Look at Data

The idea of environmental determinism once made a lot of sense. Hostile climates and habitats prevented the expansion of human populations. The conceptual opposite of determinism is called possibilism. These days, human populations can found living in many inhospitable habitats. This isn't because humans have physically evolved. But rather, we normally occupy built-environments. We exist through our technologies and advanced forms of social interaction: a person might not be able to build a…

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Added by Don Philip Faithful on September 13, 2014 at 8:11am — 2 Comments

Leveraging Predictive Analytics to Avoid a Major Point of Hiring Failure

By Greta Roberts, CEO, Talent Analytics, Corp. @GretaRoberts

Program Chair, Predictive Analytics World for Workforce

What is an employer’s most business-critical corporate process? At or near the top of this list has…

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Added by Mike Kennedy on August 11, 2014 at 4:28am — 4 Comments

Standardized Performance Friendly to Big Data

Somebody once mentioned to me that there is a need for a standard method of performance evaluation that can be applied to all employees regardless of their exact duties: e.g. to compare a janitor to an accountant. In my jurisdiction, there is a regulatory requirement for "equal pay for work of equal value" that can affect companies with government contracts. I consider the concept of "equal value" complicated due to its subjective nature. Certainly two people handling exactly the same work…

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Added by Don Philip Faithful on July 5, 2014 at 7:31am — No Comments

Data Scientists: Do You Want to Deliver More Than Business as Usual Workforce Insights?

Your firm is awash in workforce data and your team of data scientists have been charged with making sense of it and extracting meaningful insights the business can use. How do you do this? There are many different approaches to analyzing workforce data to choose from but the amount of relevant insight yielded really depends on the goals of the analysis.

If the goal is to take more of a traditional approach to workforce analytics, where the same datasets are massaged to try to squeeze…

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Added by Mike Kennedy on March 29, 2012 at 9:18am — No Comments

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