1. Lucene/Solr 3.1
Koji Sekiguchi
koji@apache.org

2. Version
enum Version (Version.LUCENE_31)
<luceneMatchVersion> LUCENE_31
</luceneMatchVersion>
<analyzer
class="org.apache.lucene.analysis.el.Gr
eekAnalyzer"
luceneMatchVersion="LUCENE_31"/>

3. @Deprecated
TermAttribute
Field(String, byte[], Store)
Similarity.lengthNorm()
Query.getSimilariry()
IndexWriter()
use IndexWriterConfig

4. Analyzers
LimitTokenCountFilter
PatternReplaceCharFilter
PathHierarchyTokenizer

5. Spatial Search
dist(1,p1,p2) : Manhattan
dist(2,p1,p2) : Euclidean
sqedist(p1,p2), strdist(s1,s2,method)
hsin(r,T|F,p1,p2), ghhsin(r,h1,h2)
geohash(), deg(), rad()
PointType, LatLonType, GeoHashField

6. FastVectorHighlighter
Solr 3.1 (Lucene 2.9)
N-gram Field Type
Fast for Large Documents
Multi-colored Tags

7. OTHERS
Apache UIMA [you-ee-muh]
edismax
range facet
google-code-prettify
bug fix: date format (Replication)
bug fix: DIH

8. lucene-gosen (LGPL)
Easy to Deploy
ipadic, naist dic & custom dictionary
Solr 3.1 ready
Manifold Functions
Keep maintenance
Release stable version frequently

9. rondhuit-uima (Apache License)
http://code.google.com/p/rondhuit-uima/
Yahoo! JAPAN Keyphrase Extractor
NExTR on Rails
NExTR on Rails (GPL2)
VMWare (appliance)
can be used w/ rondhuit-uima

10. Tnank you!
http://www.rondhuit.com/recruit.html