What is the best way to encode categorical variables in datasets with many features and avoid increasing dimensionality of the dataset?

I am working with a large dataset that has many categorical variables with many classes in each variable. I want to encode the categorical variables without increasing the dimensionality of the...

31 January 2021 6,986 3 View

If you have the authority to distribute COVID-19 vaccine to which age group or career would you begin with?

Would they be an A: elderly B: women want to be pregnant, C: health care workers, D: immune compromised E: military servants, F: or others? Please specify

14 December 2020 1,108 61 View

How to test an automatically annotated dataset for sentiment analysis?

Dear all, I have annotated a dataset of 7200 tweets with three sentiment classes: positive, negative and neutral. After training and testing multiple classification models with 6000 training +...

17 October 2020 8,501 3 View

Does electromagnetic fields harmful to our bodies?

Does magnetic field can heat the human body? According to the International Commission on Non-Ionizing Radiation protection (ICNIRP), there is a maximum allowable magnetic field exposure to our...

14 October 2020 7,594 3 View

I would like to ask how can i get adiponectin as drug to increase insulin sensitivity in obese people ?

Adiponectin as a drug

23 January 2020 8,571 1 View

Is there a way a can tranfer loads into masses in ANSYS APDL?

i want to make a dynamic analysis in ansys apdl is there a way i can transfer loads (previosly used in static analysis) i have into masses? so i can perform a dynamic analysis.

09 October 2019 6,906 3 View

Why some journals do not have an impact factor?

I have read many topics to understand the impact factor of journal. The confusion is how some journals, for example in Springer, do not have an impact factor? From discussion in this website and...

02 March 2019 8,220 3 View

Is there any articles or papers regarding Agricultural Extension Specialist?

Agricultural extension specialist topics regarding agricultural and veterinary sciences.

31 December 2018 9,622 12 View

What kind of task can be performed with "Twitter News Corpus"?

I have collected above 2.5 millions of news headlines from the newswires in Arabic (BBC, CNN, Aljazeera, AlArabyia, ....etc.) posted on twitter from 2008-now. I am asking about what kind of task...

04 May 2018 9,606 5 View

How to assign polarity for words in sentiment lexicon?

I have read many papers explaining how to assign polarity to each word in the lexicon of positive and negative terms. Some of them such as SentiWordNet assigned 3 polarity scores(Positive,...

02 March 2018 3,977 5 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

What is the procedure to determine the permeability of concrete?

can anyone help me in this, it will help me with my research work

01 March 2021 834 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View