Which type of ensemble learning is likely to be more susceptible to noise – bagging or boosting? Explain your reasoning
In machine learning ,Ensemble learning involves using multipe algorithms to obtain bettre performance than could be from any of the contituent learning algoeithms alone.Ensemble learning contructs a set of multiple hypothesis as compared to ordinary machine learning approach which try to learn one hypothesis from the training data.Ensemble laerning is used to improve the performance of a model or reduce the chance to choose a poor model.An Ensemble based system is obtained by combining diverse models(classifiers),therefore they are called multiple classifier system or ensemble system.The advantage of using the ensemble based system is that by ensembling all the classifiers that are having the same performance on the validation data instead of choosing a particular one and by combining their output can reduce the risk of selection of poorly performing indentifier.An Ensmeble contains numbers of learners called base learners.
An Ensemble is created in two steps: first a number of base learners are produced, the generation of base learner has an effect on the generation of sebsequent learners.
Second the base learners are combined to use.to get a good ensemble the base learners should be as accurate as possible
BAGGING AND BOOSTING
Bagging and Boosting are both ensemble learning Algorithms.
Bagging is also called bootstrap aggregating.In bagging different training data subsets are obtained from the entire training dataset.Each training data subset is used to train a different classifier of the same type.Individual Classifiers are then obtained by taking majority vote of their decisions.
Boosting also creates ensemble of classifiers by resampling the data which are then combined by majority voting.However in boosting resampling is strategically done in order to provide most informative training data for each consecutive classifier.
Among the two approaches boosting is more likely to affected by noise since boosting involves involves over fitting the training sets since the training set may be over emphasizing examples that are noise. boosting is affected by noise because of two reasons:
Although in some cases boosting has yielded better results than bagging but it tends to more likely over fit the training data because of which it more likely to be affected by noise.
Which type of ensemble learning is likely to be more susceptible to noise – bagging or...
(c) Which of sodium chloride and magnesium chloride is more likely to be hydrated in the solid phase? Explain your reasoning. Machbecaule it is more of
Machine Learning : Please provide explanation with the
answer
How many parameters do we need to perform boosting? Write the name of the parameters next to your selection b) 2 d) 4 How many parameters do we need to perform random forest? Write the name of the param eters next to your selection. b) 2 d) 4 What is random in random forest algorithm? a) at each split a random sample of m predictors is chosen as split candidates b)...
People that are deficient in NFκB would be expected to be more susceptible to what type of infection(s)? A) Bacterial B) Viral C) Fungal D) Only A & B E) All of the above
Which carbonyl is more susceptible to nucleophilic attack, cyclohexanone or hexanal? Provide two reasons for this choice and explain each one.
Which is more susceptible to injury, the muscle or its tendon? Why?
Which is more susceptible to injury, the muscle or its tendon? Why?
(TCO 6) What type of electrical noise is due to vibrating molecules, the intensity of which increases with temperature, bandwidth, and resistance? Group of answer choices Inductive noise White Noise Cosmic noise EMI
Acids are, by nature, generally polar compounds. Which bacterial type is likely to be more affected by acid-based disinfectants? Gram-positive bacteria Gram-negative bacteria
68. Which of the following is likely to be used as a susceptible organism and therefore a positive control for the Bacitracin Test? a. Micrococcus b. Staphylococcus c. Streptomyces d. Bacillus 69. What type of test is the Bacitracin Test? a. Hydrolytic exoenzyme test b. Dise-diffusion test c. Minimum inhibitory concentration test d. ATPase inhibition test 70. We won't do a standard Blood Agar Test (Lab Exercise 5-21), but it is often used to differentiate among several Gram positive cocci...
8. Are missense or nonsense mutations more likely to be the underlying cancer causing mutations in a) oncogenes, b) tumor suppressor genes? Explain your reasoning?