Lecture Note
University
Stanford UniversityCourse
CS229 | Machine LearningPages
1
Academic year
2023
anon
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32
p {margin: 0; padding: 0;} .ft00{font-size:22px;font-family:Nunito;color:#000000;} .ft01{font-size:16px;font-family:Nunito;color:#000000;} .ft02{font-size:19px;font-family:Nunito;color:#000000;} .ft03{font-size:22px;line-height:35px;font-family:Nunito;color:#000000;} .ft04{font-size:16px;line-height:25px;font-family:Nunito;color:#000000;} Knowing How Vectorization Affects Machine LearningAlgorithms Computer programming uses the vectorization approach to execute mathematicaloperations on arrays or vectors of numbers. This method is essential to machine learning,especially when working with huge datasets, as it aids in enhancing algorithmperformance. We will examine vectorization in greater detail in this post to see how itaffects machine learning algorithm performance. How Does Vectorization Work and What Is It? The process of executing mathematical operations on arrays or vectors of integers is knownas vectorization. A for loop is the conventional method for carrying out various processes,with each iteration of the loop carrying out a single operation. Vectorization, on the otherhand, makes use of the parallel processing capabilities of the computer hardware toaccelerate computing speeds. Let's take the straightforward math of multiplying two arrays, w and x, and adding theresult as an example. The ﬁrst members of both arrays would be multiplied in a for loopbefore moving on to the second and so forth until the last elements. In order to arrive at theﬁnal solution, we would ﬁnally add all the results. Contrarily, by using vectorization, thecomputer may obtain all of the values from the w and x arrays and carry out addition andmultiplication in parallel, leading to signiﬁcantly faster computing speeds. How Do Machine Learning Algorithms Affect Vectorization? Large datasets are frequently dealt with by machine learning algorithms, and the efﬁciencyof the calculations has a signiﬁcant impact on how well these algorithms work. Byspeeding up computing, vectorization can signiﬁcantly enhance the performance of machinelearning algorithms. As an illustration, take into account the application of multiple linear regression, asupervised learning approach utilized for regression issues. In multiple linear regression, weneed to compute an update for each of the parameter's input features and parameters.Without vectorization, we would have to update each parameter individually using a forloop. However, vectorization enables the parallel processing hardware of the computer tocarry out each update simultaneously, signiﬁcantly reducing the computing time.
How Vectorization Affects Machine Learning Algorithms
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