使用nugetpackages加载标记器模型时出现无法恢复的错误

时间:2015-08-30 19:18:10

标签: c# stanford-nlp nuget-package

我一直在尝试使用stanford-corenlp-3.5.2 nugetpackage创建并运行一个简单的程序。

然而,在查找了一些初学者代码后,我找到了以下代码props.setProperty(“annotators”,“tokenize,ssplit,pos,lemma,ner,parse,dcoref”);(链接到代码示例:{ {3}})

但是每当控制台应用程序加载pos时,它就会触发运行时错误,指出它无法加载标记器。

我想知道我是否缺少任何nugetpackages或者如果有额外的设置我必须经历。 (注意。任何时候我试图添加说postagger nuget包然后得到一个错误,说类Annotation被引用在两个dll中。)

我发现如果删除一些属性,应用程序将正确运行,所以新行看起来像这样 “props.setProperty(”annotators“,”tokenize,ssplit“);

任何有助于解决运行时错误的帮助,以便继续进一步分析示例文本将不胜感激。谢谢。

附图供参考。(显然我需要更多声望才能发布图片,但是当我可以立即这样做:)编辑我现在添加了图片:) http://sergey-tihon.github.io/Stanford.NLP.NET/StanfordCoreNLP.html

行异常处的堆栈跟踪如下:

at edu.stanford.nlp.pipeline.AnnotatorFactories.4.create()
at edu.stanford.nlp.pipeline.AnnotatorPool.get(String name)
at edu.stanford.nlp.pipeline.StanfordCoreNLP.construct(Properties , Boolean , AnnotatorImplementations )
at edu.stanford.nlp.pipeline.StanfordCoreNLP..ctor(Properties props, Boolean enforceRequirements)
at edu.stanford.nlp.pipeline.StanfordCoreNLP..ctor(Properties props)
at ConApplicationSabrinaNLP.TestClass.donlp() in c:\Users\Justin\Documents\Visual Studio 2013\Projects\ConApplicationSabrinaNLP\ConApplicationSabrinaNLP\TestClass.cs:line 28
at ConApplicationSabrinaNLP.Program.Main(String[] args) in c:\Users\Justin\Documents\Visual Studio 2013\Projects\ConApplicationSabrinaNLP\ConApplicationSabrinaNLP\Program.cs:line 20
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

1 个答案:

答案 0 :(得分:1)

问题是您还没有下载模型。 Nuget包本身并不起作用。 您必须在此处下载最新版本POS-Tagger

完成后,将其放入项目目录中。然后将代码指向它。在" 3.6.0 2015-12-09更新了兼容性"版本标记器具有不同的名称," english-bidirectional-distsim.tagger"例如。 确保将代码指向正确的文件夹和文件,它将起作用。

以下是我的Windows窗体项目中的一个工作示例。

using java.io;
using java.util;
using edu.stanford.nlp.ling;
using edu.stanford.nlp.tagger.maxent;
using Console = System.Console;
using System.IO;
using System.Windows.Forms;

namespace Stanford.NLP.POSTagger.CSharp
{
    class PosTagger

    {
        // get the base folder for the project
        public static string GetAppFolder()
        {
            return Path.GetDirectoryName(Application.ExecutablePath).Replace(@"*your project directory here*\bin\Debug", string.Empty);
        }

        public void testTagger()
        {
            var jarRoot = Path.Combine(GetAppFolder(), @"packages\stanford-postagger-2015-12-09");
            Console.WriteLine(jarRoot.ToString());
            var modelsDirectory = jarRoot + @"\models";

            // Loading POS Tagger
            var tagger = new MaxentTagger(modelsDirectory + @"\english-bidirectional-distsim.tagger");

            // Text for tagging
            var text = "A Part-Of-Speech Tagger (POS Tagger) is a piece of software that reads text"
                       + "in some language and assigns parts of speech to each word (and other token),"
                       + " such as noun, verb, adjective, etc., although generally computational "
                       + "applications use more fine-grained POS tags like 'noun-plural'.";

            var sentences = MaxentTagger.tokenizeText(new java.io.StringReader(text)).toArray();
            foreach (ArrayList sentence in sentences)
            {
                var taggedSentence = tagger.tagSentence(sentence);
                Console.WriteLine(Sentence.listToString(taggedSentence, false));
            }
        }
    }
}