コード例 #1
0
        public override float Score(IntTaggedWord iTW, int loc, string word, string featureSpec)
        {
            int wordId = iTW.Word();
            int tagId  = iTW.Tag();
            // Force 1-best path to go through the boundary symbol
            // (deterministic tagging)
            int boundaryId    = wordIndex.IndexOf(LexiconConstants.Boundary);
            int boundaryTagId = tagIndex.IndexOf(LexiconConstants.BoundaryTag);

            if (wordId == boundaryId && tagId == boundaryTagId)
            {
                return(0.0f);
            }
            // Morphological features
            string tag = tagIndex.Get(iTW.Tag());
            Pair <string, string> lemmaMorph = MorphoFeatureSpecification.SplitMorphString(word, featureSpec);
            string lemma           = lemmaMorph.First();
            int    lemmaId         = wordIndex.IndexOf(lemma);
            string richMorphTag    = lemmaMorph.Second();
            string reducedMorphTag = morphoSpec.StrToFeatures(richMorphTag).ToString().Trim();

            reducedMorphTag = reducedMorphTag.Length == 0 ? NoMorphAnalysis : reducedMorphTag;
            int morphId = morphIndex.AddToIndex(reducedMorphTag);
            // Score the factors and create the rule score p_W_T
            double p_W_Tf = Math.Log(ProbWordTag(word, loc, wordId, tagId));
            //    double p_L_T = Math.log(probLemmaTag(word, loc, tagId, lemmaId));
            double p_L_T = 0.0;
            double p_M_T = Math.Log(ProbMorphTag(tagId, morphId));
            double p_W_T = p_W_Tf + p_L_T + p_M_T;

            //      String tag = tagIndex.get(tagId);
            // Filter low probability taggings
            return(p_W_T > -100.0 ? (float)p_W_T : float.NegativeInfinity);
        }
コード例 #2
0
        public override Tree TransformTree(Tree t, Tree root)
        {
            // Perform tregex-powered annotations
            t = base.TransformTree(t, root);
            string cat = t.Value();

            //Add morphosyntactic features if this is a POS tag
            if (t.IsPreTerminal() && tagSpec != null)
            {
                if (!(t.FirstChild().Label() is CoreLabel) || ((CoreLabel)t.FirstChild().Label()).OriginalText() == null)
                {
                    throw new Exception(string.Format("%s: Term lacks morpho analysis: %s", this.GetType().FullName, t.ToString()));
                }
                string morphoStr = ((CoreLabel)t.FirstChild().Label()).OriginalText();
                Pair <string, string> lemmaMorph = MorphoFeatureSpecification.SplitMorphString(string.Empty, morphoStr);
                MorphoFeatures        feats      = tagSpec.StrToFeatures(lemmaMorph.Second());
                cat = feats.GetTag(cat);
            }
            //Update the label(s)
            t.SetValue(cat);
            if (t.IsPreTerminal() && t.Label() is IHasTag)
            {
                ((IHasTag)t.Label()).SetTag(cat);
            }
            return(t);
        }
コード例 #3
0
        private static void ReplacePOSTag(Tree t, MorphoFeatureSpecification morpho)
        {
            if (!t.IsPreTerminal())
            {
                throw new ArgumentException("Can only operate on preterminals");
            }
            if (!(t.Label() is CoreLabel))
            {
                throw new ArgumentException("Only operates on CoreLabels");
            }
            CoreLabel label = (CoreLabel)t.Label();
            Tree      child = t.Children()[0];

            if (!(child.Label() is CoreLabel))
            {
                throw new ArgumentException("Only operates on CoreLabels");
            }
            CoreLabel childLabel = (CoreLabel)child.Label();
            // Morphological Analysis
            string morphStr = childLabel.OriginalText();

            if (morphStr == null || morphStr.Equals(string.Empty))
            {
                morphStr = label.Value();
                // POS subcategory
                string subCat = childLabel.Category();
                if (subCat != null && subCat != string.Empty)
                {
                    morphStr += "-" + subCat + "--";
                }
                else
                {
                    morphStr += "---";
                }
            }
            MorphoFeatures feats = morpho.StrToFeatures(morphStr);

            if (feats.GetAltTag() != null && !feats.GetAltTag().Equals(string.Empty))
            {
                label.SetValue(feats.GetAltTag());
                label.SetTag(feats.GetAltTag());
            }
        }
コード例 #4
0
        /// <summary>First map to the LDC short tags.</summary>
        /// <remarks>
        /// First map to the LDC short tags. Then map to the Universal POS. Then add
        /// morphological annotations.
        /// </remarks>
        public override string Map(string posTag, string terminal)
        {
            string rawTag   = posTag.Trim();
            string shortTag = tagsToEscape.Contains(rawTag) ? rawTag : tagMap[rawTag];

            if (shortTag == null)
            {
                System.Console.Error.Printf("%s: No LDC shortened tag for %s%n", this.GetType().FullName, rawTag);
                return(rawTag);
            }
            string universalTag = universalMap[shortTag];

            if (!universalMap.Contains(shortTag))
            {
                System.Console.Error.Printf("%s: No universal tag for LDC tag %s%n", this.GetType().FullName, shortTag);
                universalTag = shortTag;
            }
            MorphoFeatures feats         = new MorphoFeatures(morphoSpec.StrToFeatures(rawTag));
            string         functionalTag = feats.GetTag(universalTag);

            return(functionalTag);
        }
コード例 #5
0
        //  private static String stripTag(String tag) {
        //    if (tag.startsWith("DT")) {
        //      String newTag = tag.substring(2, tag.length());
        //      return newTag.length() > 0 ? newTag : tag;
        //    }
        //    return tag;
        //  }
        /// <param name="args"/>
        public static void Main(string[] args)
        {
            if (args.Length != 3)
            {
                System.Console.Error.Printf("Usage: java %s language filename features%n", typeof(TreebankFactoredLexiconStats).FullName);
                System.Environment.Exit(-1);
            }
            Language language = Language.ValueOf(args[0]);
            ITreebankLangParserParams tlpp = language.@params;

            if (language.Equals(Language.Arabic))
            {
                string[] options = new string[] { "-arabicFactored" };
                tlpp.SetOptionFlag(options, 0);
            }
            else
            {
                string[] options = new string[] { "-frenchFactored" };
                tlpp.SetOptionFlag(options, 0);
            }
            Treebank tb = tlpp.DiskTreebank();

            tb.LoadPath(args[1]);
            MorphoFeatureSpecification morphoSpec = language.Equals(Language.Arabic) ? new ArabicMorphoFeatureSpecification() : new FrenchMorphoFeatureSpecification();

            string[] features = args[2].Trim().Split(",");
            foreach (string feature in features)
            {
                morphoSpec.Activate(MorphoFeatureSpecification.MorphoFeatureType.ValueOf(feature));
            }
            // Counters
            ICounter <string> wordTagCounter  = new ClassicCounter <string>(30000);
            ICounter <string> morphTagCounter = new ClassicCounter <string>(500);
            //    Counter<String> signatureTagCounter = new ClassicCounter<String>();
            ICounter <string> morphCounter           = new ClassicCounter <string>(500);
            ICounter <string> wordCounter            = new ClassicCounter <string>(30000);
            ICounter <string> tagCounter             = new ClassicCounter <string>(300);
            ICounter <string> lemmaCounter           = new ClassicCounter <string>(25000);
            ICounter <string> lemmaTagCounter        = new ClassicCounter <string>(25000);
            ICounter <string> richTagCounter         = new ClassicCounter <string>(1000);
            ICounter <string> reducedTagCounter      = new ClassicCounter <string>(500);
            ICounter <string> reducedTagLemmaCounter = new ClassicCounter <string>(500);
            IDictionary <string, ICollection <string> > wordLemmaMap           = Generics.NewHashMap();
            TwoDimensionalIntCounter <string, string>   lemmaReducedTagCounter = new TwoDimensionalIntCounter <string, string>(30000);
            TwoDimensionalIntCounter <string, string>   reducedTagTagCounter   = new TwoDimensionalIntCounter <string, string>(500);
            TwoDimensionalIntCounter <string, string>   tagReducedTagCounter   = new TwoDimensionalIntCounter <string, string>(300);
            int numTrees = 0;

            foreach (Tree tree in tb)
            {
                foreach (Tree subTree in tree)
                {
                    if (!subTree.IsLeaf())
                    {
                        tlpp.TransformTree(subTree, tree);
                    }
                }
                IList <ILabel> pretermList = tree.PreTerminalYield();
                IList <ILabel> yield       = tree.Yield();
                System.Diagnostics.Debug.Assert(yield.Count == pretermList.Count);
                int yieldLen = yield.Count;
                for (int i = 0; i < yieldLen; ++i)
                {
                    string tag   = pretermList[i].Value();
                    string word  = yield[i].Value();
                    string morph = ((CoreLabel)yield[i]).OriginalText();
                    // Note: if there is no lemma, then we use the surface form.
                    Pair <string, string> lemmaTag = MorphoFeatureSpecification.SplitMorphString(word, morph);
                    string lemma   = lemmaTag.First();
                    string richTag = lemmaTag.Second();
                    // WSGDEBUG
                    if (tag.Contains("MW"))
                    {
                        lemma += "-MWE";
                    }
                    lemmaCounter.IncrementCount(lemma);
                    lemmaTagCounter.IncrementCount(lemma + tag);
                    richTagCounter.IncrementCount(richTag);
                    string reducedTag = morphoSpec.StrToFeatures(richTag).ToString();
                    reducedTagCounter.IncrementCount(reducedTag);
                    reducedTagLemmaCounter.IncrementCount(reducedTag + lemma);
                    wordTagCounter.IncrementCount(word + tag);
                    morphTagCounter.IncrementCount(morph + tag);
                    morphCounter.IncrementCount(morph);
                    wordCounter.IncrementCount(word);
                    tagCounter.IncrementCount(tag);
                    reducedTag = reducedTag.Equals(string.Empty) ? "NONE" : reducedTag;
                    if (wordLemmaMap.Contains(word))
                    {
                        wordLemmaMap[word].Add(lemma);
                    }
                    else
                    {
                        ICollection <string> lemmas = Generics.NewHashSet(1);
                        wordLemmaMap[word] = lemmas;
                    }
                    lemmaReducedTagCounter.IncrementCount(lemma, reducedTag);
                    reducedTagTagCounter.IncrementCount(lemma + reducedTag, tag);
                    tagReducedTagCounter.IncrementCount(tag, reducedTag);
                }
                ++numTrees;
            }
            // Barf...
            System.Console.Out.WriteLine("Language: " + language.ToString());
            System.Console.Out.Printf("#trees:\t%d%n", numTrees);
            System.Console.Out.Printf("#tokens:\t%d%n", (int)wordCounter.TotalCount());
            System.Console.Out.Printf("#words:\t%d%n", wordCounter.KeySet().Count);
            System.Console.Out.Printf("#tags:\t%d%n", tagCounter.KeySet().Count);
            System.Console.Out.Printf("#wordTagPairs:\t%d%n", wordTagCounter.KeySet().Count);
            System.Console.Out.Printf("#lemmas:\t%d%n", lemmaCounter.KeySet().Count);
            System.Console.Out.Printf("#lemmaTagPairs:\t%d%n", lemmaTagCounter.KeySet().Count);
            System.Console.Out.Printf("#feattags:\t%d%n", reducedTagCounter.KeySet().Count);
            System.Console.Out.Printf("#feattag+lemmas:\t%d%n", reducedTagLemmaCounter.KeySet().Count);
            System.Console.Out.Printf("#richtags:\t%d%n", richTagCounter.KeySet().Count);
            System.Console.Out.Printf("#richtag+lemma:\t%d%n", morphCounter.KeySet().Count);
            System.Console.Out.Printf("#richtag+lemmaTagPairs:\t%d%n", morphTagCounter.KeySet().Count);
            // Extra
            System.Console.Out.WriteLine("==================");
            StringBuilder sbNoLemma    = new StringBuilder();
            StringBuilder sbMultLemmas = new StringBuilder();

            foreach (KeyValuePair <string, ICollection <string> > wordLemmas in wordLemmaMap)
            {
                string word = wordLemmas.Key;
                ICollection <string> lemmas = wordLemmas.Value;
                if (lemmas.Count == 0)
                {
                    sbNoLemma.Append("NO LEMMAS FOR WORD: " + word + "\n");
                    continue;
                }
                if (lemmas.Count > 1)
                {
                    sbMultLemmas.Append("MULTIPLE LEMMAS: " + word + " " + SetToString(lemmas) + "\n");
                    continue;
                }
                string lemma = lemmas.GetEnumerator().Current;
                ICollection <string> reducedTags = lemmaReducedTagCounter.GetCounter(lemma).KeySet();
                if (reducedTags.Count > 1)
                {
                    System.Console.Out.Printf("%s --> %s%n", word, lemma);
                    foreach (string reducedTag in reducedTags)
                    {
                        int    count   = lemmaReducedTagCounter.GetCount(lemma, reducedTag);
                        string posTags = SetToString(reducedTagTagCounter.GetCounter(lemma + reducedTag).KeySet());
                        System.Console.Out.Printf("\t%s\t%d\t%s%n", reducedTag, count, posTags);
                    }
                    System.Console.Out.WriteLine();
                }
            }
            System.Console.Out.WriteLine("==================");
            System.Console.Out.WriteLine(sbNoLemma.ToString());
            System.Console.Out.WriteLine(sbMultLemmas.ToString());
            System.Console.Out.WriteLine("==================");
            IList <string> tags = new List <string>(tagReducedTagCounter.FirstKeySet());

            tags.Sort();
            foreach (string tag_1 in tags)
            {
                System.Console.Out.WriteLine(tag_1);
                ICollection <string> reducedTags = tagReducedTagCounter.GetCounter(tag_1).KeySet();
                foreach (string reducedTag in reducedTags)
                {
                    int count = tagReducedTagCounter.GetCount(tag_1, reducedTag);
                    //        reducedTag = reducedTag.equals("") ? "NONE" : reducedTag;
                    System.Console.Out.Printf("\t%s\t%d%n", reducedTag, count);
                }
                System.Console.Out.WriteLine();
            }
            System.Console.Out.WriteLine("==================");
        }