一个非常大的树库查询系统

Introduction Fangorn is a tool to search for structural patterns in large collections of linguistically annotated trees. Features Here are some of the features it currently supports: * It indexes syntax trees of the Penn Treebank II format * Supports structured path queries similar to XPath * Query language supports these relations between nodes: ancestor, descendant, parent, child, following, preceding, immediate-following, immediate-preceding, following-sibling, preceding-sibling, immediate-following-sibling, immediate-preceding-sibling, and logical operators. * Implements a fast search algorithm using the Apache Lucene search engine toolkit * Runs within an embedded Jetty server to provide browser based access over a network * The UI provides interactive trees that can be exported in SVG and plain text format WebDemo nltk.ldc.upenn.edu:9090 contains three corpora T

fangorn1.2
list-db.sh
delete-index.sh
server
README
index
db
app.properties
create-index-MRG.sh
create-index-GZ.sh
start-app.sh
lib