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Toshiaki Takeuchi


MathWorks

25 total contributions since 2012

Marketing at MathWorks, Data Science Geek
Professional Interests: Inbound Marketing, Machine Learning, Natural Language Processing

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Submitted


Workflow: Collecting and Analyzing Twitter Feed
This live script shows a basic workflow for collecting and analysing Twitter feed using Datafeed Toolbox with MATLAB.

10 mois ago | 2 downloads |

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Submitted


Web Scraping and Mining Scientific Conference Data in MATLAB
Let's learn how to mine data from the web with MATLAB-based web scraping tools, with NeurIPS machine learning conference paper e...

11 mois ago | 4 downloads |

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Submitted


Multi-Armed Bandit Problem Example
Learn how to implement two basic but powerful strategies to solve multi-armed bandit problems with MATLAB.

12 mois ago | 16 downloads |

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Submitted


Building Shakespeare Bot with Text Analytics Toolbox
Let's use natural language processing to create a fun bot that generates random text that sounds like a line from Shakespeare.

environ un an ago | 2 downloads |

Answered
Artificial Neural Networks for Beginners - MNIST Dataset: Unable to read file 'myWeights'. No such file or directory. Can anyone help me understand what I should do successfully load weights?
You should remove "load myWeights" from your script. The blog post is like a cooking show, and it is just loading the pre-comput...

plus de 4 ans ago | 0

Answered
Basic question about Text Analysis/Text Analytics/Text Mining using Matlab
This blog post just went live. You can probably use this as a starting point. <http://blogs.mathworks.com/loren/2015/04/08/can-y...

plus de 4 ans ago | 0

| accepted

Answered
If I am no longer a student but want to learn MATLAB, what version should I buy?
You can now get a personal use license called <http://www.mathworks.com/products/matlab-home/ MATLAB Home>.

plus de 5 ans ago | 4

Solved


2倍してみよう - ここからスタート！
初めにこの問題を試してみよう。 入力としてxを与え、それを2倍して結果をyに代入せよ。 Examples: Input x = 2 Output y is 4 Input x = 17 Output y is 34 ...

presque 6 ans ago

Solved


ベクトル [1 2 3 4 5 6 7 8 9 10]　の作成
MATLABでは,角括弧の中に要素を入れることで、ベクトルを作成できる。 x = [1 2 3 4] また次のようにも書ける（コンマはオプション）。 x = [1, 2, 3, 4] 問題：次のベクトルを出力する関数を作成せよ。...

presque 6 ans ago

Solved


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

presque 8 ans ago

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

presque 8 ans ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

presque 8 ans ago

Solved


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

presque 8 ans ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

presque 8 ans ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

presque 8 ans ago

Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

presque 8 ans ago

Solved


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

presque 8 ans ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

presque 8 ans ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

presque 8 ans ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

presque 8 ans ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

presque 8 ans ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

presque 8 ans ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

presque 8 ans ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

presque 8 ans ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

presque 8 ans ago