I have to score a property (download allowance for a broadband package
expressed in GB) which can have values like 1, 2, 10, 20 and Infinity.
I want to use a Gauss scoring function.
{
"gauss":{
"services.Broadband.downloadAllowance.value":{
"origin":"Infinity",
"scale":50
}
}
}
the _explain api returns this:
- {
- "value": "NaN",
- "description": "function score, product of:",
-
"details": [
-
{
- "value": 1,
- "description": "match filter: *:*"
},
-
{
- "value": "NaN",
- "description": "Function for field
services.Broadband.downloadAllowance.value:",
-
"details": [
-
{
- "value": "NaN",
- "description": "exp(-0.5*pow(MIN of:
[Math.max(Math.abs(Infinity(=doc value) - Infinity(=origin)))
-
0.0(=offset), 0)],2.0)/1803.3688011112042)"
}
]
}
]
}
It does recognize the Infinity word (it parses the query correctly) but
produces a NaN score.
Any suggestion to the approach to use?
For the sake of completeness, we are using a workaround, using another
field with a value of 999 when the value is Infinity, so the Gauss curve
works properly, but it's a workaround and we would like to be able to deal
with the "Infinity" value, which works great in Js.
Thanks for your time!
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