Alexa技能发展

我相信你是在问如何使Alexa技能,可以提出诸如“有新的论文吗?”

一个好的设计是将scraper分离并发布到数据库,这是正确的。然后可以创建一个技能,该技能使用带有AMAZON.SearchQuery槽的intent来捕获用户查询。您的技能代码可以执行数据库查找并决定如何响应。

https://forums.developer.amazon.com/questions/128538/sample-skill-using-amazonsearchquery.html .

问题1。是的,有一种方法可以让Alexa查找这些PDF文件并阅读定义。amazonalexa支持lambda函数。Lambda支持.Net内核。Foxit PDF SDK 6.4在.Net内核中工作。Foxit PDF SDK 6.4支持在PDF中搜索关键字。您可以使用Foxxit PDF SDK来搜索关键字,并尝试解析PDF中的文本数据以获得定义。

此解决方案需要用于.net的Foxit PDF SDK 6.4。您可以通过以下链接找到对评估包的请求: https://developers.foxitsoftware.com/pdf-sdk/free-trial

using foxit;
using foxit.common;
using foxit.common.fxcrt;
using foxit.pdf;

public string SearchPDF(string inputPDF, string searchTerm)//inputPDF is the PDF path with the PDF itself and its .pdf extension.  the serachTerm is the term you want to search.
{
    string sn = "SNValue"; //the SN value provided in the evaluation package at lib\gsdk_sn.txt
    string key = "SignKeyValue"; //the Sign value provided in evaluation package at lib\gsdk_key.txt
    ErrorCode error_code;
    try
    {
        error_code = Library.Initialize(sn, key);  //Unlocks the library to be used.  Make sure you update the sn and key file accordingly.
        if (error_code != ErrorCode.e_ErrSuccess)
        {
            return error_code.ToString();
        }
        PDFDoc doc = new PDFDoc(inputPDF); 
        error_code = doc.Load(null); //Loads the PDF into the Foxit PDF SDK
        if (error_code != ErrorCode.e_ErrSuccess)
        {
            return error_code.ToString(); //Returns a error code if loading the document fails
        }

        using (TextSearch search = new TextSearch(doc, null))
        {
            int start_index = 0;
            int end_index = doc.GetPageCount() - 1;
            search.SetStartPage(0);
            search.SetEndPage(doc.GetPageCount() - 1);
            search.SetPattern(searchTerm); //Sets the search term to be search in the PDF

            Int32 flags = (int)TextSearch.SearchFlags.e_SearchNormal;
            // if want to specify flags, you can do as followings:
            // flags |= TextSearch::e_SearchMatchCase;
            // flags |= TextSearch::e_SearchMatchWholeWord;
            // flags |= TextSearch::e_SearchConsecutive;

            int match_count = 0;
            while (search.FindNext())
            {
                RectFArray rect_array = search.GetMatchRects()
                string sentenceWithSearchTerm = search.GetMatchSentence();// Gets the sentence with the search term
                match_count++;
            }
        }

        doc.Dispose();
        Library.Release();
    }
    catch (foxit.PDFException e)
    {
        return e.Message;
    }
    catch (Exception e)
    {
        return e.Message;
    }
    return error_code.ToString().ToUpper(); //If successful this will return the "E_ERRSUCCESS." Please check out the headers for other error codes.
}

 using (var doc = new PDFDoc(inputPDF)){
    error_code = doc.Load(null);
    if (error_code != ErrorCode.e_ErrSuccess)
    {
        return error_code.ToString();
    }

    // Get page count
    int pageCount = doc.GetPageCount();
    for (int i = 0; i < pageCount; i++) //A loop that goes through each page
    {
        using (var page = doc.GetPage(i))
        {
            // Parse page
            page.StartParse((int)PDFPage.ParseFlags.e_ParsePageNormal, null, false);
            // Get the text select object.
            using (var text_select = new TextPage(page, (int)TextPage.TextParseFlags.e_ParseTextNormal))
            {
                int count = text_select.GetCharCount();
                if (count > 0)
                {
                    String chars = text_select.GetChars(0, count); //gets the text on the PDF page.
                }
            }
        }
    }   
}

问题3。我不知道你所说的机器可读格式是什么意思,但是Foxit PDF SDK可以提供字符串格式的文本。