Questions tagged [searching]

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14 questions with no upvoted or accepted answers
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12
votes
0answers
170 views
+50

Is it possible to search the web by image from Mathematica?

Is it possible to perform a web search based on an image input? There are several services that provide this: Google, Bing, TinEye, and maybe others. I am not sure which can be accessed ...
8
votes
1answer
196 views

Using Mathematica to find an alternative continued fraction for $\zeta(5)$

Given the Riemann zeta function $\zeta(n)$. I. $x=\zeta(3)$ Using Euler's continued fraction formula, we can form $\zeta(3)$'s cfrac as, $$Ax+B = \cfrac{1}{v_1 - \cfrac{1^6}{v_2 - \cfrac{2^6}{...
4
votes
0answers
90 views

Can BreadthFirstScan be modified?

I would like to obtain a "slick" implementation of A*-search algorithm on Graph objects, using the built-in BreadthFirstScan (if that is possible at all). I noticed that BreadthFirstScan is static in ...
3
votes
0answers
79 views

Approximate Nearest Neighbors in Mathematica?

Is there any support for Approximate Nearest Neighbors (ANN) in Mathematica or third-party packages? I'm looking for a good implementation of locality sensitive hashing for applications where ...
3
votes
0answers
64 views

Extracting names (surname & family name) from unstructured text files

This question is about finding names of people in a text without knowing these people. There are some rules we can use to detecting names in a text A name consist always of two or more words (...
3
votes
0answers
54 views

How to find where in a large expression Power::infy is generated?

Consider the following expression: ...
3
votes
0answers
102 views

Front End - Bug in Edit->Find?

As a beginner I make notes in my notebooks on what I am learning as I go along, and I have also referenced the help files by pasting hyperlinks from them - this seems to break the Find function. Is ...
2
votes
0answers
40 views

Match an expression that has a descendant pattern

I have a complicated expression in which I have another expression p which, when it’s present, I want to match the outer expression and all of its children. I was hoping for something like ...
2
votes
0answers
51 views

Is there a way to cancel a search in Mathematica?

Is there a way to cancel a word search in Mathematica initiated via the Find and Replace menu?
2
votes
0answers
84 views

dynamic binary search

Suppose I have a time series of values $v_1, \dotsc, v_n, \dots,$ (think of the data as being generated by repeated function calls, like a Python generator, or being captured in real time) and I want ...
2
votes
0answers
104 views

Retrieving a Portion of Webpage Code using URLFetch

The URLFetch command is very useful for pulling the entire html source of a given webpage, however, if one wanted to speed up the process, by only requesting a ...
1
vote
0answers
57 views

Alternative Methods of Using Cumulative Density Functions To Obtain Probabilities

I have a CDF that is generated from the subtraction of two arrays as part of a minimization procedure. A consequence is that events in the simulation can cause the subtracted total to be less than 0: ...
1
vote
0answers
61 views

Improved Documentation Search By Actual Content

Now by default Mathematica documentation searches keywords section in the Options version of the notebook and the actual text of the notebook. For example here is a snippet from ...
0
votes
0answers
155 views

Replacing parts of a complicated expression with shorthand symbols

I have a list, each element of which contains a different complicated expression. Here is a simplified example of the first three entries of the list, displayed one above the other: $\frac{Ey \ \mu \ ...