Task 1:What is the role of IT management and why is it important. Respond to at least on other classmate about their thoughts.Task 2:Please read below student posts and reply each (2 posts)in 150 words.
Naresh :lassifier Performance
Pros and Cons
Naïve Bayes
Prose. Predicting the class of the test data set is simple and quick. It also succeeds well in
predicting multi-levels. A Naive Bayes algorithm performs better compared too many other
systems, including infrastructural regression while assuming individuality holds, and
customer needs less training data.
Cons. If a numerical component has a classification not identified in the training data set,
otherwise the model will give a possibility of 0 (zero) and would not be capable of making a
forecast. It is often called Zero Frequency. The Optimistic Bayes limitation is the presumption
of independent determinants (Rajalakshmi & Aravindan, 2018, pp. 363-396).
Logistic Regression
Prose. For observations the appropriate probability scores
Across tools the efficient operations accessible
Cons. It does not perform well across too big a feature room. It does not do a very well
significant number of numerical functionality/variables. For nonlinear features, relies on
transformations (Nakamura, et al., 2020, pp. 1-12).
Decision Trees
Prose. Fit for visual display, simple to understand, and to perceive. It is an illustration of a white-box
model that accurately simulates the process of making individual decisions. It can function with
elements categorical and numerical.
Cons. Restrictive tree depth, the only axis-aligned split of data.
Prose. No expectations regarding data — valuable, for instance, for nonlinear data, General
algorithm — to define and concentrate/understand, Multipurpose — valuable for classification or
Cons. Computationally exclusive — for the stores of the algorithm and all of the training data, the
requirement of the high memory, Delicate to inappropriate structures as well as the measure of the
Support Vector Machine
Prose. SVM operates reasonably well if there is a substantial margin of category separation. SVM is
fairly efficient with memory. SVM seems to be more efficient in environments of large dimensions.
Cons. For large data sets, the SVM algorithm is also not suitable. The SVM can perform poorly in
situations where the number of functions for each data point higher than the number of model
training data.
Random Forest
Prose. The statistical efficiency can compare with both the best algorithms of supervised learning.
They include a realistic estimate of the importance of functionality.
Cons. An ensemble model is generally less open to interpretation than a major decision tree
Training a huge number of complex forests could have high processing costs and use a great deal of
memory (Wang, Wang, & Ma, 2019, pp. 1-16).
Dimensionality Reduction
Issues with classification in machine learning sometimes require so many variables on both the
basis from which the ultimate identification is made. Such considerations are primarily such
designated features parameters. Therefore higher the level of functions, the simpler the training set
becomes to envision and then work. Most of these characteristics are almost always linked, and
therefore redundant (Zhang & Luo, 2020, pp. 1-9). That is where algorithms for the reduction of
dimensional space come into effect. Minimization of dimensional space is the method of reducing
the number of explanatory variables under examination, by acquiring a collection of key variables. It
could be categorized into the collection of functions and the collection of features (Elhenawy,
Masoud, Glaser, & Rakotonirainy, 2020, pp. 33898-33908).
In this work that people demonstrate that the identification efficiency of close to the grounddimensional structural MRI data is enhanced through the use of dimension reduction approaches
with nothing but a small number of training examples. People tested two various versions of
dimension reduction: ANOVA F-test selection of dimensions, and PCA transition of features. The
user applied popular training algorithms on the decreased datasets utilizing 5-fold cross-validation.
Testing, the configuration of the maximum parameters including performance evaluation of the
algorithms were carried out and use two different technical measurements: precision, as well as the
Operating Characteristic Curve (AUC) of the transmitter (Lin, Mukherjee, & Kannan, 2020, pp. 1-11).
Ravi – Review the pros and cons of the following algorithms:
Naïve Bayes
Pros: It performs well if there should arise an occurrence of all out-information factors contrasted
with numerical variable.
Cons: If all out factor has a classification, which was not seen in preparing informational index, at
that point model will dole out a (zero) likelihood and will be not able to make an expectation.
Logistic Regression
pros: it is progressively powerful: the free factors don’t need to be typically appropriated, or have
equivalent change in each gathering
Cons: it requires significantly more information to accomplish steady, important outcomes. With
standard relapse, and DA, ordinarily 20 information focuses per indicator is viewed as the lower
bound (ArchanaH. & Sachin, 2015).
Decision Trees
Pros: A decision tree does not necessitate standardization of data.
Cons: A trivial modification in the data can source a great alteration in the edifice of the decision tree
instigating unpredictability.
Pros: K-NN is pretty spontaneous and meek, it has no conventions and No Working out Step
Cons: K-NN slow procedure and desires similar topographies.
Support Vector Machine
Pros: SVM works comparatively well when there is vibrant boundary of separation between classes.
Cons: SVM process is not appropriate for large data sets (ArchanaH. & Sachin, 2015).
Random Forest
Pros: Irregular Forest depends on the sacking calculation and utilizations Ensemble Learning
procedure. It makes the same number of trees on the subset of the information and joins the yield of
the considerable number of trees. Right now, decreases overfitting issue in choice trees and
furthermore diminishes the change and along these lines improves the exactness.
Cons: Complexity: Random Forest makes a ton of trees and joins their yields. As a matter of course,
it makes 100 trees in Python sklearn library. To do as such, this calculation requires significantly
more computational force and assets. Then again, choice tree is straightforward and doesn’t require
such a lot of computational asset (“Advantages and Disadvantages of Quantitative and Qualitative
Information Risk Approaches”, 2011).
Explain how Dimensionality Reduction helps improve the classifier performance
Dimensionality decrease assumes a significant job in grouping execution. An acknowledgment
framework is structured utilizing a limited arrangement of information sources. While the exhibition of
this framework increments on the off chance that we include extra highlights, sooner or later a
further incorporation prompts a presentation debasement. Head Components Analysis are one of
the top dimensionalities decrease calculations, it isn’t difficult to comprehend and utilize it in genuine
undertakings. This procedure, notwithstanding making crafted by highlight control simpler, it despite
everything assists with improving the consequences of the classifier (ArchanaH. & Sachin, 2015).

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