Indicates questions asking about the use and meaning of specific technical words/concepts in statistics.
Questions tagged [terminology]
101 questions
13
votes
4 answers
What is the difference between (objective / error / criterion / cost / loss) function in the context of neural networks?
The title says it all: I have seen three terms for functions so far, that seem to be the same / similar:
error function
criterion function
cost function
objective function
loss function
I was working on classification problems
$$E(W) = \frac{1}{2}…
Martin Thoma
- 18,880
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4
votes
1 answer
What are the points called in a dataset where the points have the same features but different labels
What are the points called in a dataset where the points have the same features but different labels?
For example, I am trying to predict whether some object is a hot dog. But I only have access to features is_wrapped_in_bread and…
Daniel Kats
- 141
- 3
3
votes
2 answers
Term for calculated values that lose pertinence when changing scale
I'm trying to find the term for a type of calculations or values that cannot be simpply added or multiplied when zooming in or out from a temporal scale. I know it's not very clear, if it were I would just google the question.
Here's an example: say…
P. O.
- 131
- 5
2
votes
1 answer
Ordered and unordered categorical features – terminology
In the famous book "The Elements of Statistical Learning" by Hastie et al., the authors denoted unordered categorical variables as qualitative variables / nominal variables / factors.
I wonder, do other statisticians strictly follow this or some…
Rodvi
- 122
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2
votes
1 answer
What are stovepipes?
I am reading the book The Data Warehouse Lifecycle Toolkit by Ralph Kimball. I come across the term Stovepipes fairly often. After doing some research I read that Stovepipes are when you don't have conformed dimensions to link data marts. This short…
Amous
- 123
- 3
1
vote
1 answer
Terminology Question: Place Coding
While reading the paper "Backpropagation Applied to Handwritten Zip Code Recognition", one
of the original papers attributed to the development of convolutional neural networks,
on page 3, section 3.1 the authors write (emphasis mine):
The remainder…
IntegrateThis
- 119
- 12
1
vote
1 answer
If this is “big-endian”, then what is this?
If an ISO 8601 date is “big-endian”, i.e. the most significant bit is first and the least significant is last, then what do we call data structures where the most significant part is first/at the top, and the least significant is last/at the…
boatingcow
- 111
- 3
0
votes
1 answer
term for data that compares a day to same day of a week/month/year ago
What is the technical term for a report or dataset that compares data of an interval of time with that of the same interval in a previous week, month, or year?
0
votes
1 answer
Which term is correct Datafication or Datification?
I have recently started reading Introduction to Data Science: A python approach to Concepts, Techniques, and Applications and taking notes on Data Science.
Chapter 1 repeatedly uses the term Datification(the process of rendering into data aspects…
Imran Ali
- 103
- 2
0
votes
1 answer
What is the term for data that is too sparse to represent the underlying data model?
I am giving a presentation on Data Science, and I want to talk about the idea that data that is not "big" enough is a big barrier for Machiene Learning. Looking online, there are concepts like overfitting and underfitting, but I am more looking to…
Seth
- 113
- 5
0
votes
1 answer
Is there a term for data based on calculations of raw data?
I'm trying to find out if there is a specific term for describing data created from computations based on raw data.
For example, I have the two data tables below. I'd like to know the term used to describe table #2. Thank you!
Data Table #1: Raw…
Mr. B
- 103
- 3
0
votes
1 answer
Difference between prototype and centroid
Are these two terms "prototype" and "centroid" exchangeable? I know prototypes can be calculated using the mean of the features. Is it the same for centroid?
Marzi Heidari
- 249
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