field norms of un-boosted fields are normally less than 1 (it's a factor that weights larger fields less). The index-time boost is also multiplied into this factor though. Given that your first doc had a huge norm, it looks like the document or field was boosted at index time?
-Yonik On Thu, May 29, 2008 at 9:22 PM, Tim Christensen <[EMAIL PROTECTED]> wrote: > Hi, > > This is my first post. I have been working with Lucene for about 4 weeks and > Solr for just about 10 days. We are going to convert our site search over to > Solr as soon as we figure out some of the nuances. > > As I was testing out the synonyms features to decide how we could best use > it, I searched for iPod (I know it is an example, but we actually sell > them). I was shocked when the search results were nothing close to an iPod. > > Looking closer, I could see that the description had an iPod word in it, > just 1. With debug on, that fact is confirmed (this is the first result): > <str name="id=502999430,internal_docid=6247"> > 152529.23 = (MATCH) fieldWeight(search_text:ipod in 6247), product of: > 1.0 = tf(termFreq(search_text:ipod)=1) > 3.7238584 = idf(docFreq=522) > 40960.0 = fieldNorm(field=search_text, doc=6247) > </str> > Here is an explainOther, FOR an actual iPod SKU (in the same search): > <str name="otherQuery">id:650085488</str> > <lst name="explainOther"> > <str name="id=650085488,internal_docid=6985"> > 1.0473351 = (MATCH) fieldWeight(search_text:ipod in 6985), product of: > 3.0 = tf(termFreq(search_text:ipod)=9) > 3.7238584 = idf(docFreq=522) > 0.09375 = fieldNorm(field=search_text, doc=6985) > </str> > If the term frequency is higher, the only difference is'fieldNorm' which I > do not understand in the context of relevancy. Does this have to do with > omitNorms in some way? > In a related factor, I also tried the dismax query with the following line > in it: > <str name="qf">search_text^0.5 brand^10.0 keywords^5.0 title^20.0 > sub_title^1.5 model^2.0 attribute^1.1</str> > As an experiment I boosted the title a bunch, since this is where the term > iPod exists the most. It made no effect, in fact, it was not even working. > The title was not being used at all, just the search_text, even though I > have it indexed. > Here is the relevant schema parts > <field name="id" type="string" indexed="true" stored="true" > required="true" /> > <field name="brand" type="string" indexed="true" stored="true" /> > <field name="model" type="string" indexed="true" stored="true" /> > <field name="manufacturer_model" type="string" indexed="true" > stored="true" /> > <field name="keywords" type="string" indexed="true" stored="false" /> > <field name="title" type="string" indexed="true" stored="true" /> > <field name="sub_title" type="string" indexed="true" stored="true" /> > <field name="attribute" type="string" indexed="true" stored="true" > multiValued="true" /> > <field name="type" type="string" indexed="true" stored="true" /> > <field name="description_category" type="string" indexed="true" > stored="true" /> > <field name="description" type="string" indexed="true" stored="true" /> > <field name="brand_id" type="string" indexed="false" stored="true" /> > <field name="code" type="string" indexed="false" stored="true" /> > <field name="color" type="string" indexed="true" stored="true" /> > <field name="description_category_id" type="string" indexed="false" > stored="true" /> > <field name="display_price" type="sfloat" indexed="false" stored="true" /> > <field name="line_item_price" type="sfloat" indexed="true" stored="true" > /> > <field name="main_category" type="string" indexed="true" stored="true" /> > <field name="main_category_id" type="string" indexed="false" stored="true" > /> > <field name="regular_price" type="sfloat" indexed="false" stored="true" /> > <field name="sku" type="string" indexed="true" stored="true" /> > <field name="type_id" type="string" indexed="false" stored="true" /> > <field name="upc" type="string" indexed="true" stored="true" /> > <field name="size" type="string" indexed="true" stored="true" /> > <field name="search_text" type="text" indexed="true" stored="false" > multiValued="true" termVectors="true"/> > > <defaultSearchField>search_text</defaultSearchField> > > <copyField source="brand" dest="search_text"/> > <copyField source="model" dest="search_text"/> > <copyField source="manufacturer_model" dest="search_text"/> > <copyField source="keywords" dest="search_text"/> > <copyField source="title" dest="search_text"/> > <copyField source="sub_title" dest="search_text"/> > <copyField source="attribute" dest="search_text"/> > <copyField source="description_category" dest="search_text"/> > <copyField source="type" dest="search_text"/> > <copyField source="description" dest="search_text"/> > <copyField source="main_category" dest="search_text"/> > <copyField source="sku" dest="search_text"/> > <copyField source="upc" dest="search_text"/> > Thanks to all who are willing to take a look at this and help. > > ---------------------------------------------------- > Tim Christensen > Director Media & Technology > Vann's Inc. > 406-203-4656 > > [EMAIL PROTECTED] > > http://www.vanns.com > > > > > > > >
