machine learning interview questions and answers

Machine Learning Interview Questions and Answers

by GangBoard Admin, March 1, 2019

In case you’re searching for Machine Learning Interview Questions and answers for Experienced or Freshers, you are at the correct place. GangBoard offers Advanced Machine Learning Interview Questions and answers that assist you in splitting your Machine Learning interview and procure dream vocation as Machine Learning Developer.

Q1) What do you understand by the Machine Learning?

Answer: It is the application of artificial intelligence that can provides systems are the ability to automatically can learn and improve from the experience without being explicitly programmed. Machine  learning focuses on the development of  computer programs that can be access to data and use it’s learn for themselves.

Q2) What are the difference between supervised and unsupervised machine learning?

Answer: Supervised learning is requires training labeled datas. For example, in order to the classification (a supervised learning task), you’ll need to the first label the data you’ll use to the train the model to classify data into your labeled groups. Unsupervised learning, in contrast, does not a require labeling data explicitly.

Q3) What is the difference between the Type I and Type II error?

Answer: Don’t think this as something high level of stuff, interviewers ask questions in such terms just to the know that you have all the bases and you are on the top.

Type I error is the false positive, while Type II is the  false negative. Type I error is claiming on something has to happened when it hasn’t. For the instance, telling an man he is pregnant. On the other hand, Type II error means you claim nothing is happened but in the  fact something . To exemplify, you tell an pregnant lady she isn’t carrying baby.

Q4) Are expected value and mean value different?

Answer: They are not different but the terms are used in the different contexts. Mean are  generally referred  to when talking about an probability distribution or sample population whereas expected value is the generally referred in the random of variable context.

Q5) What does P-value signify about the statistical data?

Answer: P-value is used to the determine the significance of the results after a hypothesis test in statistics. P-value helps to the readers to draw conclusions and is always between 0 and 1.

P- Value > 0.05 denotes weak to evidence against the null hypothesis which are means the null hypothesis cannot be rejected.

P-value <= 0.05 denotes strong to evidence against of the null hypothesis which means the null hypothesis can be rejected.

P-value=0.05 is the marginal value are indicating it is possible to go either way.

Q6) Do gradient descent methods of always converge to same point?

Answer: No, they do not because in some cases it reaches an local minima or a local optima points. You don’t reach to the global optima point. It depends on the data and starting the conditions.

Q7) What is the goal of A/B Testing?

Answer: It is a statistical hypothesis testing for the randomized experiment with two variables to A and B. The goal of A/B Testing is to the identify any changes to the web page to maximize or increase the outcome of an interest. An example for this could be identifying for the click through rate for the banner ad.

Q8) What is Machine Learning?

Answer: The simplest way to the answer this question is – we give the data and equation to the machine. Ask to the machine  look at the data and identify to the coefficient values in an equations.

For example for the linear regression y=mx+c, we give the data for  variable x, y and the machine learns about to the values of m and c from to the data.

Q9) Python or R – Which one would you prefer for the text analytics?

Answer: The best possible answer for this would be Python because it has to Pandas library that provides easy to use data of structures and high performance of data analysis tools.

Q10) What is kernel SVM?

Answer: Kernel SVM is the abbreviated version of kernel support vector of machine. Kernel methods are a class of algorithms for pattern analysis and the most common one of the kernel SVM.

Q11) What kind of error will be solved by organizing?

Answer: In mechanical learning, regulation is the process of introducing additional information as a result of an incorrect phenomenon or to avoid additional material. It is basically a reuse form, which evaluates or controls the value for zero. The regulating technique prevents the complexity or the flexible model to avoid the inappropriate risk.

Q12) What is data science?

Answer: Data Science uses automated methods to analyze and retrieve large quantities of data. By combining features of statistics, computer science, application mathematics and visualization, data science can alter the wide range of data generated by the new digital intelligence and new knowledge of digital age.

Q13) What is Logistic Recession? An example of when you recently used the logistic backlash?

Answer: The Logistic Recreation is often referred to as the Registration Model is a technique to predict binary effects predictive variables from a linear combination.

For example, if you want to predict whether a particular political leader should succeed or not. In this case, the end of the forecast is binary ie 0 or 1 (success / loss). Here the predictive variables are the amount spent for a particular candidate’s election campaign, the amount of time spent on the campaign, etc.

Q14) What are Recommended Systems?

Answer: Recommended Systems is a sub directory of information filtering systems, which predicts the preference or rankings offered by a user to a product. Recommendations are widely used in movies, news, research articles, products, social tips, music, etc.

Q15) What is the difference between the rule of governance and the character of the fruit trees?

Answer: The difference is that the research on decision making trees assesses the quality of a certain number of intermediate set standards, while evaluating only the value of the evaluators.

Q16) What is Periberan in machine stones?

Answer: In machine learning, Perception is a step in the classification of an input supervision in many potential non-binary releases.

Q17) Explain Two Parts of the Bayes on Logic Plan?

Answer: There are two elements in the Bayesian logic project. The first component is a logical one; It is a collection of the Bayesian Klaus package, which captures the domain’s characteristic structure. The second component is a criterion, which marks the amount of information about the domain.

Q18) What is Paysyni Networks (BN)?

Answer: Answer: The Poison Network is used to represent a graphical model for the probability relationship under the Variables.

Q19) Why is learning algorithm sometimes referred to as a laser learning algorithm?

Answer: The learning algorithm, based on music, is also referred to as a laser learning algorithm until they are aggravated by the stimulation or generalization process.

Q20) What are two types of methods that can handle SVM (support vector machine)?


  • Connecting binary classifier
  • Binary replacement with multiple courses

Q21) What to learn in computer?

Answer: To solve a particular computing plan, many models, such as classifiers or technicians, are strategically developed and connected. This process is known as group learning.

Q22) Why is learning in alcohol use?

Answer: Integration learning is used to improve the classification of a sample, prediction, and functional approximation.

Q23) When to use group learning?

Answer: Ensemble learning is used when you create a more accurate and independent component classifier for each other.

Q24) What are two forms of group systems?


There are two forms of group systems

  • Continuous Group Methods
  • co-operative systems

Q25) What is the general principle of a group system, what damage and inclusion?

Answer: The general principle of a group is to combine the computations of multiple models built with learning methodology to improve the weakness of a model. Group is a group to promote illegal assessment or classification. Increasing the method for reducing the essence of the integrated model is used continuously. Error and decreasing firing errors by reducing time varies.

Q26) What is the difference between taxonomy errors in regular order?

Answer: A learning algorithm can be distinguished into an expected error function and variation. Measuring a dependent period, comparing the average classroom prepared by the learning algorithm to the target dependence. The calculation of the duration of the varying time learning method provides a compatibility rate for a variety of exercises.

Q27) What is a Development Learning Algorithm in the Group?

Answer: The Advanced Learning System is an algorithmic ability to learn from the new data available since it has already created a database that has already been exported from the database.

Q28) What is PCA, KPCA and ICA?

Answer: The key feature is the extraction techniques used for the dimensional reduction of PCA (Primary Components Analysis), KPCA (Kernel-based Primary Component Analysis) and ICA (Independent Component Analysis).

Q29) What is the dimensional reduction in machine learning?

Answer: In mechanical learning and statistics, the transfer reduction is a process of reducing random variables in calculations, and the feature feature and feature extraction

Q30) What are Supplement Vector Machines?

Answer: Learning methods used for classification and recession analysis of vector machines.

Q31) What are the elements of relevant assessment strategies?

Answer: Key elements of the relevant assessment strategies

  • Data acquisition
  • Ground Trude Acquisition
  • cross-estimate technique
  • question type
  • metric marks
  • a significant test

Q32) What are the different mechanisms for series monitoring surveys?

Answer: There are different methods to solve continuous supervision learning problems

  • sliding window modes
  • Repeat sliding windows
  • hidden marco samples
  • Maximum eighty Marco models
  • Conditional random fields
  • graphic transformer networks

Q33) Robotics and Information Processing Areas Continuous Computational Problem?

Answer: Robotics and information processing areas are in places where there is a constant computation problem

  • fantasy learning
  • Computed computation
  • model-based reinforcement learning

Q34) What is statistical study?

Answer: Statistical learning techniques allow a function or predict from a set of permitted data that can make predictions about the future or future data. These techniques confirm the effectiveness of a learning perspective on future unobtrusive data based on the statistical assumption of data creation process.

Q35) What is PAC learning?

Answer: BAA (perhaps approximate) Learning Learning algorithm has been introduced to introduce learning methods and their statistical capabilities.

Q36) Are you different categories that you can classify the sequence learning process?


  • sequence
  • line generation
  • Row recognition
  • continuous conclusion

Q37) What are two techniques of machine learning?


There are two techniques for machine learning

  • Genetic programming
  • Learning stimulation

Q38) Give a popular use of machine learning that you see on a daily basis?

Answer: The machine uses machine learning that is implemented by major eCommerce websites.

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