[Octave-bug-tracker] [bug #49375] pkg name similarity measurement is off / too simplistic

[Mike Miller]

URL:
  <http://savannah.gnu.org/bugs/?49375>

                 Summary: pkg name similarity measurement is off / too
simplistic
                 Project: GNU Octave
            Submitted by: mtmiller
            Submitted on: Mon 17 Oct 2016 12:56:07 PM PDT
                Category: Octave Function
                Severity: 2 - Minor
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

When a user tries to install a Forge package, but gets the name wrong, a
single name suggestion is shown:


>> pkg install -forge springs
error: get_forge_pkg: package not found: "springs".  Maybe you meant
"strings?"


This works very well when the string length matches exactly. But when a single
character is added or omitted, the metric it is using for similarity falls
apart as it seems to be assigning a higher cost to having a different string
length than to having every single character being wrong:


>> pkg install -forge imagel
error: get_forge_pkg: package not found: "imagel".  Maybe you meant "signal?"

>> pkg install -forge signa
error: get_forge_pkg: package not found: "signa".  Maybe you meant "video?"

>> pkg install -forge signals
error: get_forge_pkg: package not found: "signals".  Maybe you meant
"sockets?"

>> pkg install -forge communication
error: get_forge_pkg: package not found: "communication".  Maybe you meant
"generate_html?"



Also not sure why this case returns "zeromq" instead of "signal":


>> pkg install -forge sizzzz
error: get_forge_pkg: package not found: "sizzzz".  Maybe you meant "zeromq?"





    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?49375>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/