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Aggregation operations process data records and return computed results. Aggregation operations group values from multiple documents together, and can perform a variety of operations on the grouped data to return a single result. What aggregation operator of NoSQL is equivalent to WHERE is SQL?
AnsweredAdmin asked 4 years ago
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TCS has developed a digital merchandise suite that fuels sales by creating a personalized cross channel shopping experience for customers. It is a generation merchandising solution of TCS that helps retailers reinvent their business by embracing the evolving consumer, technology and market trends. Name the solution
AnsweredAdmin asked 4 years ago
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Supervised learning is the machine learning task of learning a function that maps an input to an output based on example input output pairs. It infers a function from labeled training data consisting of a set of training examples. In supervised learning finding the likelihood of feature belonging to a particular class can be grouped under what type of problem?
AnsweredAdmin asked 4 years ago
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The accuracy is simply how good your machine learning model is at predicting a correct class for a given observation. You build the model with training data and validate with the test data. What are the scenarios which have lower training accuracy as well as low test accuracy termed.
AnsweredAdmin asked 4 years ago
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The excessive and unnecessary use of graphical effects in graphs that are not necessary to comprehend the information but to distract the viewer’s attention is
AnsweredAdmin asked 4 years ago
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Shallow learning algorithm perform one task at a time. In Shallow Learning algorithms the process of examining the functional relationship among the variables is ________
AnsweredAdmin asked 4 years ago
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The accuracy is simply how good your machine learning model is at predicting a correct class for a given observation. You build the model with training data and validate with the test data. What are the scenarios which have higher training accuracy and low test accuracy called?
AnsweredAdmin asked 4 years ago
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Which of the following is not a part of Edward Tufte’s principles of Graphical Integrity?
AnsweredAdmin asked 4 years ago
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Singularity is an important property of a square matrix. This is also known as degenerate. What is the value of the determinant of a singular matrix?
AnsweredAdmin asked 4 years ago
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Complex deep nets perform best when parallel processing is used it can be either shared memory or distributed computing. What are the Shared memory option available to train a deep net called?
AnsweredAdmin asked 4 years ago
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Gradient descent is an optimization algorithm used to minimize some function by iteratively moving in the direction of steepest descent as defined by the negative of the gradient. In machine learning, we use gradient descent to update the parameters of our model. The learning rate controls how quickly the model is adapted to the problem. What does lowering learning rate in gradient descent lead to?
AnsweredAdmin asked 4 years ago
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The various types of noSQL databases are Key Value Store, Document based store, column based store and Graph based. MongoDB is a very popular nosql database. Mongo DB can be categorized as what type of nosql db?
AnsweredAdmin asked 4 years ago
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Chatbots are the new UI. They date back to 1960’s. ELIZA is believed to be the first chat-bot ever to be programmed. Who created ELIZA?
AnsweredAdmin asked 4 years ago
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In Vector space, standard basis for a Euclidean space is the set of unit vectors pointing in the direction of the axes of a Cartesian coordinate system. What is the length of Unit basis vector?
AnsweredAdmin asked 4 years ago
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What are charts that are suitably adopted while analyzing a trend over a period of time?
AnsweredAdmin asked 4 years ago
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