Re: solr ltr jar is not able to recognize MultipleAdditiveTreesModel
You can not just use the model output from Ranklib.
I opened this issue few months ago but I never had the right
time/motivation to implement it [1] .
You need to convert it in the Apache Solr LTR expected format.
I remember a script should be available[2]
[1] https://sourceforge.net/p/lemur/feature-requests/144/
[2] https://github.com/ryac/lambdamart-xml-to-json
--
Alessandro Benedetti
Search Consultant, R Software Engineer, Director
www.sease.io
On Thu, Feb 15, 2018 at 3:55 PM, Brian Yee <b...@wayfair.com> wrote:
> I'm not sure if this will solve your problem, but you are using a very old
> version of Ranklib. The most recent version is 2.9.
> https://sourceforge.net/projects/lemur/files/lemur/RankLib-2.9/
>
>
> -Original Message-
> From: kusha.pande [mailto:kusha.pa...@gmail.com]
> Sent: Thursday, February 15, 2018 8:12 AM
> To: solr-user@lucene.apache.org
> Subject: solr ltr jar is not able to recognize MultipleAdditiveTreesModel
>
> Hi I am trying to upload a training model generated from ranklib jar using
> lamdamart mart.
>
> The model is like
> {"class":"org.apache.solr.ltr.model.MultipleAdditiveTreesModel",
> "name":"lambdamartmodel",
> "params" : {
> "trees" :[
>{
> "id": "1",
> "weight": "0.1",
> "split": {
> "feature": "8",
> "threshold": "7.111333",
> "split": [
> {
>"pos": "left",
>"feature": "8",
>"threshold": "5.223557",
>"split": [
> {
> "pos": "left",
> "feature": "8",
> "threshold": "3.2083516",
> "split": [
> {
>"pos": "left",
>"feature": "1",
>"threshold": "100.0",
>"split": [
> {
> "pos": "left",
> "feature": "8",
> "threshold": "2.2626402",
> "split": [
> {
>"pos": "left",
>"feature": "8",
>"threshold": "2.2594802",
>"split": [
> {
> "pos": "left",
> "output": "-1.6371088"
> },
> {
> "pos": "right",
> "output": "-2.0"
> }
>]
> },
> {
>"pos": "right",
>"feature": "8",
>"threshold": "2.4438097",
>"split": [
> {
> "pos": "left",
> "feature": "2",
> "threshold": "0.05",
> "split": [
> {
>"pos": "left",
>"output": "2.0"
> }, ..
>
>
> getting an exception as :
> Exception: Status: 400 Bad Request
> Response: {
> "responseHeader":{
> "status":400,
> "QTime":43},
> "error":{
> "metadata":[
> "error-class","org.apache.solr.common.SolrException",
> "root-error-class","java.lang.RuntimeException"],
> "msg":"org.apache.solr.ltr.model.ModelException: Model type does not
> exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel",
> "code":400}}
> .
>
> I have used RankLib-2.1-patched.jar to generate the model and converted the
> generated xml to json.
>
>
>
>
>
> --
> Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
>
RE: solr ltr jar is not able to recognize MultipleAdditiveTreesModel
I'm not sure if this will solve your problem, but you are using a very old
version of Ranklib. The most recent version is 2.9.
https://sourceforge.net/projects/lemur/files/lemur/RankLib-2.9/
-Original Message-
From: kusha.pande [mailto:kusha.pa...@gmail.com]
Sent: Thursday, February 15, 2018 8:12 AM
To: solr-user@lucene.apache.org
Subject: solr ltr jar is not able to recognize MultipleAdditiveTreesModel
Hi I am trying to upload a training model generated from ranklib jar using
lamdamart mart.
The model is like
{"class":"org.apache.solr.ltr.model.MultipleAdditiveTreesModel",
"name":"lambdamartmodel",
"params" : {
"trees" :[
{
"id": "1",
"weight": "0.1",
"split": {
"feature": "8",
"threshold": "7.111333",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "5.223557",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "3.2083516",
"split": [
{
"pos": "left",
"feature": "1",
"threshold": "100.0",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "2.2626402",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "2.2594802",
"split": [
{
"pos": "left",
"output": "-1.6371088"
},
{
"pos": "right",
"output": "-2.0"
}
]
},
{
"pos": "right",
"feature": "8",
"threshold": "2.4438097",
"split": [
{
"pos": "left",
"feature": "2",
"threshold": "0.05",
"split": [
{
"pos": "left",
"output": "2.0"
}, ..
getting an exception as :
Exception: Status: 400 Bad Request
Response: {
"responseHeader":{
"status":400,
"QTime":43},
"error":{
"metadata":[
"error-class","org.apache.solr.common.SolrException",
"root-error-class","java.lang.RuntimeException"],
"msg":"org.apache.solr.ltr.model.ModelException: Model type does not
exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel",
"code":400}}
.
I have used RankLib-2.1-patched.jar to generate the model and converted the
generated xml to json.
--
Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
solr ltr jar is not able to recognize MultipleAdditiveTreesModel
Hi I am trying to upload a training model generated from ranklib jar using
lamdamart mart.
The model is like
{"class":"org.apache.solr.ltr.model.MultipleAdditiveTreesModel",
"name":"lambdamartmodel",
"params" : {
"trees" :[
{
"id": "1",
"weight": "0.1",
"split": {
"feature": "8",
"threshold": "7.111333",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "5.223557",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "3.2083516",
"split": [
{
"pos": "left",
"feature": "1",
"threshold": "100.0",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "2.2626402",
"split": [
{
"pos": "left",
"feature": "8",
"threshold": "2.2594802",
"split": [
{
"pos": "left",
"output": "-1.6371088"
},
{
"pos": "right",
"output": "-2.0"
}
]
},
{
"pos": "right",
"feature": "8",
"threshold": "2.4438097",
"split": [
{
"pos": "left",
"feature": "2",
"threshold": "0.05",
"split": [
{
"pos": "left",
"output": "2.0"
},
..
getting an exception as :
Exception: Status: 400 Bad Request
Response: {
"responseHeader":{
"status":400,
"QTime":43},
"error":{
"metadata":[
"error-class","org.apache.solr.common.SolrException",
"root-error-class","java.lang.RuntimeException"],
"msg":"org.apache.solr.ltr.model.ModelException: Model type does not
exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel",
"code":400}}
.
I have used RankLib-2.1-patched.jar to generate the model and converted the
generated xml to json.
--
Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
