How to express accuracy of the neural network where the dataset has not been split into two, training set and test set?

In use, the weights obtained are considered with the greatest accuracy when the data set is divided, because the weights are initialized at random and the training data is swapped at random...

19 January 2021 5,714 4 View

The loss of hyperbolicity in PDE?

Question about the loss of hyperbolicity in nonlinear PDE: when complex eigenvalues appear, what is the effect on flow? I understand that we do not have general results on existence in this case,...

16 December 2020 2,571 3 View

Books on doing a PhD?

Hi colleagues, I wondered if any of you could recommend a book for a student starting out on her PhD. Her subject area is: health, education, training and child...

07 December 2020 549 4 View

Why do I receive the sae mesage several times?

26 October 2020 409 1 View

Is there a method to completely remove OCT from frozen tissue?

I am trying to remove OCT from frozen tissue for DNA/RNA sequencing. My goal is to remove a portion of tissue from the OCT embedded tissue, without thawing or greatly disturbing the remaining...

24 June 2020 1,715 1 View

How to escape local minimum in the training of Convolutional Neural Network?

I am trying to train CIFAR10 dataset on CIFAR10 architecture on MATCONVNET without gpu but my objective function is not decreasing down to 1,665. What may be parameters to tune while considering...

16 June 2020 4,700 8 View

Can distributed intelligence substitute for a lack of ethics?

In the trust economy, ethics becomes a scare resource. To what extend will technology be able to step in and fill this gap? Distributed Cognition and Distributed Morality: Agency, Arti...

03 January 2020 9,711 3 View

What type of water should I use in viral DNA extractions?

I am attempting to set up a QC laboratory to test viral samples isolated from insects. The test will include gel electrophoresis and qPCR analysis. What I want to know is what type of water should...

16 December 2019 683 5 View

Where are the good exposures at the Ditrau Massive in Transylvania, Romania? (Could you give a global grid reference?)?

I am a third year geology student at the University of Edinburgh, School of GeoSciences. This summer I will be working on my dissertation mapping on the Ditrau massive. I have a mapping partner. I...

26 March 2018 9,838 3 View

Unequal error variances in two-way ANOVA?

Using SPSS, N=297. The Levene's statistic is very significant at p

16 August 2017 6,365 3 View

How to call both UMAT and UEL together in Abaqus?

I have a model with bulk material (matrix) and inclusions and cohesive interface elements between both. For the bulk material, I have implemented a UMAT and for the cohesive interface elements, I...

20 February 2021 1,286 2 View

Measurement of water retention in organic substrates without a pressure plate?

Hello, I'm trying to measure the physical and hydrological properties of organic substrate media. Currently, I'm referring The book Soil sampling and Methods of Analysis by Carter and Gregorich....

09 February 2021 3,233 8 View

What is the best supplyer for high quality lithium niobate?

Hi, I want the use lithium niobate for the frequency conversion from 1030nm to 515nm. We want to order bulk material and machine it to the required dimensions. There are numerous suppliers of...

07 February 2021 6,786 2 View

What is the best way to improve the working potential window of a solid electrolyte?

My solid polymer electrolyte shows low bulk resistance show quite a low bulk resistance. However, the potential window (obtained from LVS) is very small. Please how can I improve the operating...

31 January 2021 3,340 9 View

How to prepare an algal sample for FT-IR spectroscopy?

Can we measure the bulk composition of biomolecules present within an algal sample directly by placing its powdered form on a FT-IR spectroscopy stage? Or does it require a particular kind of...

30 January 2021 2,303 4 View

Is it possible to culture several cell lines in the same plate/dish/flask with complete cell separation?

I'm trying to screen the effect of a toxic agent. I need to see its effect on a few different cell lines with different degrees of resistance to this compound. I would like to possibly culture...

31 December 2020 5,740 3 View

Vertical distributions of SOC & N is found decreasing with increased value of bulk density, shown in literature, is it uniform for the forest soils?

Almost all the literature shows that the vertical distributions of soil organic carbon (SOC) & available nitrogen (N) is found decreasing with increased value of bulk density with respect to...

21 December 2020 670 10 View

Is grain boundary scattering 'always' dominant over surface scattering in grained metal/semiconductor thin films?

Hi all, I was wondering if there is some theoretical insight in the relative contribution to the resistivity of grained thin metal or semiconductor films coming from bulk grain boundary...

18 December 2020 2,969 3 View

Bulk density obtained of the forest surface soils is 0.81 gm/cubic centimetres, is it normal?

Bulk density of a forest soil sample in a community forest created under social forestry scheme in the district of Nadia, West Bengal is obtained as 0.81 gm/ cubic centimetre, comparatively too...

30 November 2020 4,706 33 View

Can anyone suggest to me a company that produces bulk metallic glass powder?

I'm studying for a master's degree. I'm doing research in 3D printing by using metallic glass powder... I would like to buy some to do experiments. It would be very helpful if anyone can suggest...

29 October 2020 184 4 View