libpostal | C library for parsing/normalizing street addresses | Natural Language Processing library
kandi X-RAY | libpostal Summary
kandi X-RAY | libpostal Summary
libpostal is a C library for parsing/normalizing street addresses around the world using statistical NLP and open data. The goal of this project is to understand location-based strings in every language, everywhere. For a more comprehensive overview of the research behind libpostal, be sure to check out the (lengthy) introductory blog posts:. :jp: :ru: :de: :kr: :es: :cn: :gb: . Addresses and the locations they represent are essential for any application dealing with maps (place search, transportation, on-demand/delivery services, check-ins, reviews). Yet even the simplest addresses are packed with local conventions, abbreviations and context, making them difficult to index/query effectively with traditional full-text search engines. This library helps convert the free-form addresses that humans use into clean normalized forms suitable for machine comparison and full-text indexing. Though libpostal is not itself a full geocoder, it can be used as a preprocessing step to make any geocoding application smarter, simpler, and more consistent internationally. :us: :it: :fr: . The core library is written in pure C. Language bindings for Python, Ruby, Go, Java, PHP, and NodeJS are officially supported and it's easy to write bindings in other languages.
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QUESTION
I'm using libpostal
- pypostal
to parse an address but I only need the road
and the country
in an Array ["franklin ave","usa"],["leonard st","united kingdom"]
How can I achieve this ?
Return type is net.razorvine.pickle.objects.classdictconstructor
ANSWER
Answered 2021-Mar-19 at 13:52Maybe you can try a list comprehension before returning the parsed address:
QUESTION
Here's my Dockerfile that I want to use for one of my web-api using python fastapi, but whenever I try to built it, I am getting the below given error.
...ANSWER
Answered 2021-Feb-25 at 03:32The default WORKDIR
for your base image tiangolo/uvicorn-gunicorn:python3.8 is /app
. I believe this is the Dockerfile for the base. When you cloned the repo, you were actually running it in /app
.
You can explicitly set WORKDIR /
or specify WORKDIR /app/libpostal
to successfully run the bootstrap script.
You should also adjust your paths in the RUN
commands after cloning since they should be relative. Here are the changes I suggest:
Option 1
QUESTION
I'm trying to identify and extract any input address location (Not limited to US - SmartyStreets) from a long string of text using php on my xampp.
I've read several topics/libraries regarding on how to do this, which revolves around using NLP, Google's Geocoding API and regex to perform the above mentioned task. These 3 links are some plausible link that may help Link 1, Link 2, Link 3/GitHub Library(Seems Promising).
However, I do not know whether these links may be of any help with the implementation? Can anyone help me with it?
...ANSWER
Answered 2017-Feb-08 at 23:58That is the holy grail of address parsing, for sure. A few things to consider when attacking this project. First, each country can have their own particular addressing format. As much as it would be nice, there's no standard addressing format.
Here are some good compilations of address formats, but even these don't always agree:
Address formats by Informatica
Address formats by Universal Postal Union
Address formats by a guy who has spent a lot of time thinking about this kind of stuff
Step 1 - Once you have become familiar with all the possible address formats for each country, you can group the formats that are similar and create a regex for each group.
Step 2 - This is critical. Do everything you can to determine the country that the address might pertain to. This will let you know which regex to utilize. If you can't do this, you may end up with many different address candidates.
Step 3 - Using your regex, scan through the source text to determine potential horizons, start and end points for an address. In the USA, addresses typically begin with a house number and end with a zipcode (5 or 9 or eleven digit). In Germany addresses typically begin with a street name and end with a city/state or postal code.
Step 4 - Now scan through that address candidate to determine the various components of the address, based on your understanding of the formatting pattern for that country. Find the following components:
- primary number
- street pre-directional (helps to have an index of all the possible values)
- street name (helps to have an index of all the possible values)
- street suffix (helps to have an index of all the possible values)
- street post-directional (helps to have an index of all the possible values)
- secondary number designator (helps to have an index of all the possible values)
- secondary number
- city (helps to have an index of all the possible values)
- state (helps to have an index of all the possible values)
- postal code
(there are a lot more, but that's a good start)
Step 5 - If you only want to determine a string that looks like an address, you're done. Feed this string into a geocoding tool and get the lat/lon that corresponds to it. Google Maps or OpenStreetMap should be able to do the trick for you.
If you want to know if an address is actually valid (as in matches a known entry in an authoritative dataset, like the local post office) then you'll need to use an address validation tool, like one that you'll find with a simple google search:
Google Search: "address validation"
Full disclosure: I spend a lot of time thinking about this very topic, trying to find different ways to solve it, and explaining it to a lot of people. I work international addresses all day long at SmartyStreets.
QUESTION
I am trying to deploy jpostal artifacts into an EC2 instances so that our web application can use the library. As I understand, jni files in "scr/main/jniLibs" are linking to c libraries in "/usr/local/include/libpostal" and "/usr/local/lib/". However, I do not have permission to write "libpostal.h" into "/usr/local/include/libpostal" and "pkgconfig,libpostal.a,libpostal.la,libpostal.so,libpostal.so.1,libpostal.so.1.0.0" into "/usr/local/lib/" in the EC2 instances. Is there any solution for this?
Thanks.
...ANSWER
Answered 2018-Sep-11 at 07:08I managed to build and save all artefacts into a local folder, e.g. "/app/libpostal/" and then the deployment process is simply copying them to the same folder in a EC2 machine. The key thing is to use ./configure command to specify all the folders to store the artefacts and there is a tricky step where I use my own jpostal_build.sh instead of the default one:
1. Custom "jpostal_build.sh" has 2 lines:QUESTION
I am using the libpostal library to find an full address (street, city, state, and postal code) within a news article. libpostal when given input text:
There was an accident at 5 Main Street Boulder, CO 10566 -- which is at the corner of Wilson.
returns a vector:
...ANSWER
Answered 2018-Jun-14 at 00:27You could do this with clojure.spec. First define some specs that match your maps' :label
values:
QUESTION
I've created a c# bindings for libpostal library (link to LibPostalNet).
I've used CppSharp to create bindings. It works but I don't how to convert this code :
...ANSWER
Answered 2017-Sep-10 at 22:49This is a bit complex as those is a pointer to a list of pointers of chars, something very similar to an array of strings.
You need to iterate the pointers, retrieve the internal pointers and convert those to strings (I'm assuming you can use unmanaged code):
QUESTION
How do I avoid the unresolved external symbol _mainCRTStartup
error when using the MSVC toolchain (ex: CL.EXE) from within an MSYS environment?
Details:
I started a "VS2013 x64 Native Tools Command Prompt" and the launched C:\msys64\msys2.exe
from there.
In my MSYS session I get results like this:
...ANSWER
Answered 2017-Jul-14 at 16:11After checking everything in agonizing detail, I found the problem:
When C:\msys64\msys2.exe
is executed from the "VS2013 x64 Native Tools Command Prompt", the $PATH variable will end up containing /c/Program Files (x86)/Microsoft Visual Studio 12.0/VC/bin
, but that is the wrong directory for 64-bit work. Instead the path should contain /c/Program Files (x86)/Microsoft Visual Studio 12.0/VC/bin/amd64
. Once I did that substitution, cl.exe
worked fine.
Running vcvars64.bat from within the MSYS environment will not fix the $PATH. The above substitution has to be done manually or from a custom startup script like ~/.bashrc
.
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For Windows the build procedure currently requires MSys2 and MinGW. This can be downloaded from http://msys2.org. Please follow the instructions on the MSys2 website for installation.
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