distance | A collection of approximate string matching algorithms | Search Engine library
kandi X-RAY | distance Summary
kandi X-RAY | distance Summary
This is a rust library for approximate string matching algorithms. Possible applications for this are fuzzy string searching, spell checkers, spam filters, etc.
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distance Key Features
distance Examples and Code Snippets
use distance::*;
// Levenshtein distance
let distance = levenshtein("hannah", "hanna");
assert_eq!(1, distance);
// Damerau Levenshtein distance
let distance = damerau_levenshtein("hannah", "hannha");
assert_eq!(1, distance);
// Hamming dis
def edit_distance(hypothesis, truth, normalize=True, name="edit_distance"):
"""Computes the Levenshtein distance between sequences.
This operation takes variable-length sequences (`hypothesis` and `truth`),
each provided as a `SparseTensor`, a
def lamberts_ellipsoidal_distance(
lat1: float, lon1: float, lat2: float, lon2: float
) -> float:
"""
Calculate the shortest distance along the surface of an ellipsoid between
two points on the surface of earth given longitudes an
def mean_cosine_distance(labels,
predictions,
dim,
weights=None,
metrics_collections=None,
updates_collections=None,
Community Discussions
Trending Discussions on distance
QUESTION
I have a data frame including three columns named 'Altitude', 'Distance', 'Slope'. The column of 'Slope' is calculated using the two first columns 'Altitude', 'Distance'. @ the first step the purpose was to calculate 'Slope' using a condition explained below: A condition function was deployed to start from the top column of the "Distance" variable and add up (sum) values until the summation of them is greater or equal to 10 (>=10). If this condition corrects then calculate the "Slope" using the given formula: Slope=Average(Altitude)/(sum(Distance)). The summation of the 'Distance' was counting from the first value of that to the index that the 'Distance' has stopped there). The following code is for the above explanation (By Tim Roberts):
...ANSWER
Answered 2021-May-19 at 13:38Use this code after you calculate s
to get slope column with desired values:
QUESTION
I'm trying to change the following code so I get this output for radius 2:
...ANSWER
Answered 2021-Mar-21 at 01:38The output looks oval because characters have not same width and height. Think of an image that its pixels are not square, but vertical rectangles. I borrowed the c# version of the code linked by @Prasanth Rajendran, and made some modifications:
- added
lineWidth
argument - added
xScale
argument, now every1/xScale
characters in a row are equivalent to1
data points - moved character position to its center, by adding a [0.5, 0.5] offset
QUESTION
I'm very new in MATLAB (this is my first script). I wonder how may I speed up this loop, I don't know any toolbox or 'tricks' as I'm a newbie on it. I tried to code it with instinct, it works, but it is really long.
All are variables get with fread
or integer
manually entered, so this is basically simple math, but I have no clue on why is it so long (maybe nested loops ?) and how to improve, as I am more familiar with Python and for example multiprocess
.
Thanks a lot
...ANSWER
Answered 2021-Jun-15 at 07:30You have one issue with the given code. The blow line:
QUESTION
I am trying to ingest JSON array data into Azure data explorer, as per this Microsoft article. (Only the JSON Array section) https://docs.microsoft.com/en-us/azure/data-explorer/ingest-json-formats?tabs=kusto-query-language
I have one table with two columns(messageId,Message) message contain json data and i want to extract this data into different columns. all of the fields from the array are just blank.
enter code here { 'data': { 'type': 'ABC', 'id': '1234567890', 'attributes': { 'event': 'update', 'logged_at': '2021-06-03T15:41:22.000Z', 'heartbeat_id': '12345678', 'gps_valid': True, 'gps': { 'distance_diff': 0.22, 'total_distance': 127.79 }, 'hdop': 12, 'fuel_level': 180.4, 'relative_position': { 'distance': '3', 'country_code': 'Uk' } },`
CODE: AMO | mv-expand data = message.data | extend type = data.type, id = data.id` }
...ANSWER
Answered 2021-Jun-15 at 10:19If I understand correctly, there's no property-bag/array you need to expand (using mv-expand
), rather you can extend/project the properties of your choice directly, e.g:
QUESTION
I'm developing a simple navigator with mapbox API for Android.
I'm creating some routes using https://docs.mapbox.com/playground/directions/ playground and i would like to use the generated JSON to generate a DirectionsRoute
object.
So i call DirectionsRoute.fromJson()
but when i do it, the application crashes with this error:
ANSWER
Answered 2021-Jun-15 at 08:12The response from the mapbox API is not DirectionsRoute
. It is DirectionsResponse
, a structure that looks like this:
QUESTION
Is it possible to return the entirety of data not just part of which we are grouping by?
I mean for example - I have a dataframe with 5 columns and one of those columns contains distance
, the other one is timestamp
and the last important one is name
. I grouped dataframe by timestamp
- agg function I applied is (min) on distance
. As a return i get correctly grouped dataframe with timestamp and distance - how can i add columns name
there. If I group it by name
as well then timestamp
becomes duplicated - it has to stay unique. As a final result I need to get dataframe like this:
But instead i get this:
timestamp distance 2020-03-03 15:30:235 123 2020-03-03 15:30:435 111Whole table has more than 700k rows so joining it back on distance
gives me that amount of rows which my PC can't even handle.
Here is my groupby
which gives me 2nd table:
grouped_df = df1.groupby('timestamp')['distance'].min()
Here is what i tried to do in order to get name
inside the table:
ANSWER
Answered 2021-Jun-15 at 03:48You can use GroupBy.agg
method to apply min
on the distance column, and apply a relevant function on name column (lambda x:x
to simply return its data). This will return the dataframe with both columns back to you:
QUESTION
I would like to find minimum distance of each voxel to a boundary element in a binary image in which the z voxel size is different from the xy voxel size. This is to say that a single voxel represents a 225x110x110 (zyx) nm volume.
Normally, I would do something with scipy.ndimage.morphology.distance_transform_edt (https://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.ndimage.morphology.distance_transform_edt.html) but this gives the assume that isotropic sizes of the voxel:
...ANSWER
Answered 2021-Jun-15 at 02:32Normally, I would do something with scipy.ndimage.morphology.distance_transform_edt but this gives the assume that isotropic sizes of the voxel:
It does no such thing! You are looking for the sampling=
parameter. From the latest version of the docs:
Spacing of elements along each dimension. If a sequence, must be of length equal to the input rank; if a single number, this is used for all axes. If not specified, a grid spacing of unity is implied.
The wording "sampling" or "spacing" is probably a bit mysterious if you think of pixels as little squares/cubes, and that is probably why you missed it. In most situations, it is better to think of pixels as point samples on a grid, with fixed spacing between samples. I recommend Alvy Ray's a pixel is not a little square for a better understanding of this terminology.
QUESTION
I have a data frame like this:
...ANSWER
Answered 2021-Jun-14 at 15:44The "average distance" of x and y is defined as (x + (y - x))/2.
That's just y/2. Drop the first row and divide the rest by 2: sample.a[1:]/2
QUESTION
Stackblitz for this problem. That's the closest I could get.
I'm using Material Drag & Drop. The result I'm looking for is to clone an item from a LIST and put into another list, which is visually an AREA, but that's the "catch", keeping the dropped "coordinates" (x,y) on that area.
That's my HTML code:
...ANSWER
Answered 2021-Apr-30 at 21:40I believe this comes close to what you were after.
Two adjustments:
changed widget positioning to
absolute
-- transforming withposition: relative
was repositioning the widgets in an inconsistent manner.had to adjust the
translate
-- I'm no expert with this library but it looks like the nativeElement transform properties are set relative to the position of the drawer option the user selects (the NOTE vs COLUMN options in your example). If you add more options you might have to adjust x,y for each depending on where the option is in the drawer space.
Hope this helps and cheers!
QUESTION
I am new to zimpl and I am currently trying to modell the GTSP. The setting is that we have nodes which are grouped into clusters. My problem is i dont know how to implement in zimpl which node belongs to which cluster.
What I did so far:
set V:= {1..6};
set A:= { in V*V with i < j};
set C:= {1,2,3};
set W:= { in C*C with p < q};
set P[]:= powerset(C);
set K:= indexset(P);
I am guessing something is missing because i want to group node 1,2
in cluster 1
, 3,4
in cluster 2
and 5,6
in cluster 3
.
Some background Information:
Let G = (V, A)
be a graph where V=1,2,...,n
is the set of nodes and A = {(i, j): i, j ∈ V, i ≠ j}
is the set of directed arcs (or edges), and let c_ij
be the travel distance (or cost or time) from node i to node j. Let V1, V2, ... , Vk
be disjoint subsets of V such that union of these subsets equals to V. These subsets are called clusters. The GTSP is to find the tour that (i) starts from a node and visits exactly one node from each
cluster and turns back to the starting node (ii) never
visit a node more than once and (iii) has the minimum total tour length.
Associated with each arc, let x_ij
be a binary variable equal to “1” if the traveler goes from node i to node j, and “0” otherwise.
Thats the mathematicl model I want to model:
min∑i∈V ∑j∈V\{i} cijxij
subject to:
∑i∈Vp ∑j∈V\Vp xij = 1 (p= 1, ..., k)
∑i∈V\Vp ∑j∈Vp xij = 1 (p= 1, ..., k)
∑j∈V\{i} xji − ∑j∈V\{i} xij = 0 (∀i∈V)
xij∈{0,1} ∀(i, j)A
up−uq+k ∑i∈Vp ∑j∈Vq xij+(k−2)∑i∈Vq ∑j∈Vp xij ≤ k−1 (p≠q;p,q=2,...,k)
up≥0 (p=2, ..., k)
(Thats the link for the paper: http://www.wseas.us/e-library/conferences/2012/Vouliagmeni/MMAS/MMAS-09.pdf)
Maybe someone can help! thanks
...ANSWER
Answered 2021-Jun-12 at 15:36You can use an indexed set (just as u did to implement the powerset of C
) and assign the sets as needed. Try this for example:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install distance
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
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