Stack Overflow
Stack Overflow

Questions tagged [evaluation]

Anything related to evaluation of expressions, i.e. the process used to determine the value of expressions in a running program.

What is it?

Evaluation is about rules, algorithms and strategies used for the evaluation of expressions or the computation of evaluation functions.

Related tags

  • The tag may be used more specifically for the execution or invocation of evaluations.
  • For more specific questions use tags such as for example

See also:

1334 questions
-1
votes
2 answers

Does SQL Server Management Studio (or SQL Server) evaluate *all* expressions?

Here's my configuration: I have a re-runnable batch script that I use to update my database. Inside of that batch script, I have code that says the following: If Table 'A' doesn't exist, then create Table 'A' and insert rows into it. Later on in…
Jim G.
  • 15,141
  • 22
  • 103
  • 166
-1
votes
1 answer

How to calculate number of correct data records extracted?

I want to calculate recall and precision for which I need correct data records extracted, total number of data records and incorrect data records extracted. I have input html pages and I am extracting useful data from it and generate output html…
user3806876
  • 3
  • 1
-1
votes
3 answers

Evaluating a math expression given in string

Here is my code: String test = "12+23-42-53+4-31"; int counter = 0; Stack numb= new Stack(); Stack op = new Stack(); for(int i = 0; i
juku
  • 73
  • 4
-1
votes
2 answers

C compiler's pre/post incrementation evaluation in expressions

Today I found something, that made me very anxious about my C++ or basic programming skills. The problem is C++ expression evaluation with post/pre incrementation. Let's check this, let me say that, trivial example of code: int a = 5; int d = a++ +…
Invader
  • 105
  • 1
  • 12
-1
votes
2 answers

How to monitor user actions without server side?

Our app is a widget based, for the client-side used mostly JavaScript. For the evaluation purpose information about user behaviour should be gathered. Is it possible to gather information about user click events without accessing server side code?
Sunkat
  • 393
  • 1
  • 3
  • 8
-1
votes
1 answer

Tool for automatically evaluation of an ontology?

In fact my problem that I create a tool for developing ontology automatically. Then I want to evaluate the ontology given by my tool but I want to automatically evaluate it. Could anyone please suggest for me a good tool to do it ?
user3503945
  • 7
  • 4
-1
votes
1 answer

PostFix Expression Evaluation

I'm a writing a C++ program to Evaluate a PostFIx expression. This is the following code: #include #include #include #include using namespace std; int operand1; int operand2; bool operator_test(char…
user3451638
  • 9
  • 1
  • 1
-1
votes
1 answer

How does c evaluate expressions containing prefix increments?

Given that x is initialised to 0 before each statement on the left executes, the result is the value displayed on the right: (++x + ++x) + ++x == 7 ++x + (++x + ++x) == 9 ++x + ++x + ++x == 7 Why does the first statement result in 7 and the…
murungu
  • 2,090
  • 4
  • 21
  • 45
-1
votes
1 answer

Java loop to evaluate all operators

I need to modify this code in order to use order of operations and to be able to multiply and divide but I have no idea where to start. I know if works for addition and subtraction but I just need to figure out how to make it multiply and…
user2957438
  • 25
  • 5
-1
votes
1 answer

Deciding who has won a hand of Poker in Java

What would be the best way to compare two (and only two) players hands in Java using the best combination for 5 cards out of 7 cards (texas hold'em)? If each card is assigned a value or enum then is there an alogirthm that can be used to decide who…
silverzx
  • 1,209
  • 4
  • 14
  • 18
-2
votes
0 answers

How to choose K in K mean clustering use AIC and BIC method from this graph?

I have to identify k to determine group from Mall_Customers.csv have 2 variable are Spending Score (1-100) and Annual Income (k$) by use AIC and BIC score method enter image description here I want a theory explain why choose that K and principle to…
Kittiphop SAE-TANG
  • 1
-2
votes
1 answer

how to interpret learning curve in machine learning?

those're the learning curves for each algorithm I used. i'm working on my report and i'm confused how to interpret the curve. I used multi label classification algorithms. this is the learning curve of binary relevance the classifier is…
najoukou
  • 27
  • 5
-2
votes
1 answer

Why are my train/valid set loss curves dropping and plateau after X epochs?

I am training a deep model for MRI segmentation. The models I am using are U-Net++ and UNet3+. However, when plotting the validation and training losses of these models over time, I find that they all end with a sudden drop in loss, and a permanent…
Cptn. Array
  • 49
  • 5
-2
votes
1 answer

Why adding non-relevant documents improve system performance? And how to evaluate the new result?

Suppose an IR system returns a ranked list of 20 documents in response to a query from a collection of 10,000 documents. If 5,000 non-relevant documents are added to the collection, we find that the same ranked list is returned for the query. That…
Sharon.S
  • 1
-2
votes
1 answer

How to add size preference to clustering evaluation?

I am trying to apply k-means (or other algorithms) clustering on some data. I want the silhouette score of the clustering results become good and at the same time, I prefer to less number of clusters. So I am wondering how can I jointly evaluate the…
Ruriko
  • 1
1 2 3
…
88 89