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Complex Answer Retrieval Track is a new track in 2017, which requests a more complex and longer retrieval result to answer a query. ... It focuses on developing systems that are capable of answering complex information needs by collating relevant information from an entire corpus. ... Firstly, we splitted the data into many copies, each with one thousand text data, because Solr only supports indexing one thousand text data at a time. Then we set up inverted index on each copies. ...dblp:conf/trec/ChengZYXYLC17 fatcat:wyt3qcsq5bakzhjuer6pjj4diu