Structural Equation Modelling tutorial ?

Hello, i need a basic tutorial on Structural Equation Modellling, available on line ; it needs not cover the advanced topics as i plan to use it as a support for a newby "crash course" I would...

02 March 2015 457 7 View

Can someone point me towards tight bounds for the cumulative distribution of a multinomial ?

I would be grateful for pointers to tight bounds fo the cumulative distribution of a multinomial (tight meaning tighter than the lower bound that can be obtained from the union bound ! pointer to...

02 March 2015 4,865 5 View

Is there any known analytical result or (very) fast algorithm (with proof of correctness) giving the maximum likelihood sample from a multinomial?

Is there any known analytical result or (very) fast algorithm (with proof of correctness) giving the maximum likelihood sample when drawing from the Multinomial MULT(N ; P1 ... PM), with N...

31 December 2014 444 6 View

What are the false positive/false negative rates when using a random portion of a Bloom filter for membership query ?

Suppose I have encoded a set of cardinality n in a standard Bloom filter (m bits, k hash functions). I randomly select p bits from the Bloom filter and run the membership query with those p bits...

09 October 2014 1,023 6 View

Is there any such available experimental study for more parsimonious structures such as Min-Hash or HyperLogLog ?

Cardinality estimation, specially the case of set intersections, has been studied experimentally in Papapetrou, Siberski and Nejdl (...

07 August 2013 9,338 1 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

Can anyone provide the Support vector regression code structure of LIBSVM MATLAB or python ?

Please, if Gaussian Parameter optimization is possible in this code structure

28 February 2021 278 3 View

How to modify Johnson cook equation in ABAQUS?

I wanted to add an extra parameter to the existing Johnson cook equation in the ABAQUS simulation. How to add those extra parameters. Ref: A modified Johnson-Cook material model with strain...

28 February 2021 4,841 3 View

No module named 'tensorflow.keras.backend.tensorflow_backend' ?

System Description Cuda 11.2 GeForce GTX 1080ti tensorflow version 2.4.1 keras version 2.2.0 python version 3.8 I was getting the below error when I try to run my code on the...

25 February 2021 6,673 2 View

Implementation of chance-constrained optimization problem via scenario approach?

23 February 2021 7,826 2 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

How can I retrieve FASTA sequence from gene ID or UID of a Gene ? I have GeneBank IDs ?

I treid to use Entrez Batch, but it redirects me to NCBI site. Is there any script of Linux or Python through which I can download Fasta sequence of list of gene ID ?

21 February 2021 7,783 12 View