// Sample from https://stanfordnlp.github.io/CoreNLP/coref.html
        static void Main()
        {
            var jarRoot = @"..\..\..\..\data\paket-files\nlp.stanford.edu\stanford-corenlp-full-2018-02-27\models";

            Annotation document = new Annotation("Barack Obama was born in Hawaii.  He is the president. Obama was elected in 2008.");
            Properties props    = new Properties();

            props.setProperty("annotators", "tokenize,ssplit,pos,lemma,ner,parse,mention,coref");
            props.setProperty("ner.useSUTime", "0");

            var curDir = Environment.CurrentDirectory;

            Directory.SetCurrentDirectory(jarRoot);
            var pipeline = new StanfordCoreNLP(props);

            Directory.SetCurrentDirectory(curDir);

            pipeline.annotate(document);

            var corefChainAnnotation    = new CorefCoreAnnotations.CorefChainAnnotation().getClass();
            var sentencesAnnotation     = new CoreAnnotations.SentencesAnnotation().getClass();
            var corefMentionsAnnotation = new CorefCoreAnnotations.CorefMentionsAnnotation().getClass();

            Console.WriteLine("---");
            Console.WriteLine("coref chains");
            var corefChain = document.get(corefChainAnnotation) as Map;

            foreach (CorefChain cc in corefChain.values().toArray())
            {
                Console.WriteLine($"\t{cc}");
            }
            var sentences = document.get(sentencesAnnotation) as ArrayList;

            foreach (CoreMap sentence in sentences.toArray())
            {
                Console.WriteLine("---");
                Console.WriteLine("mentions");
                var corefMentions = sentence.get(corefMentionsAnnotation) as ArrayList;
                foreach (Mention m in corefMentions)
                {
                    Console.WriteLine("\t" + m);
                }
            }
        }
Esempio n. 2
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        public void CorefTest()
        {
            Annotation document = new Annotation("Barack Obama was born in Hawaii.  He is the president. Obama was elected in 2008.");
            Properties props    = new Properties();

            props.setProperty("annotators", "tokenize,ssplit,pos,lemma,ner,parse,coref");
            props.setProperty("ner.useSUTime", "false");

            var curDir = Environment.CurrentDirectory;

            Directory.SetCurrentDirectory(Files.CoreNlp.JarRoot);
            var pipeline = new StanfordCoreNLP(props);

            Directory.SetCurrentDirectory(curDir);

            pipeline.annotate(document);

            var corefChainAnnotation    = new CorefCoreAnnotations.CorefChainAnnotation().getClass();
            var sentencesAnnotation     = new CoreAnnotations.SentencesAnnotation().getClass();
            var corefMentionsAnnotation = new CorefCoreAnnotations.CorefMentionsAnnotation().getClass();

            Console.WriteLine("---");
            Console.WriteLine("coref chains");
            var corefChain = (Map)document.get(corefChainAnnotation);

            foreach (CorefChain cc in corefChain.values().toArray())
            {
                Console.WriteLine($"\t{cc}");
            }
            var sentences = (ArrayList)document.get(sentencesAnnotation);

            foreach (CoreMap sentence in sentences.toArray())
            {
                Console.WriteLine("---");
                Console.WriteLine("mentions");
                var corefMentions = (ArrayList)sentence.get(corefMentionsAnnotation);
                foreach (Mention m in corefMentions)
                {
                    Console.WriteLine("\t" + m);
                }
            }
        }