Download SwoogleandWatson (Assignment_3report)

Anlamsal Web BIL-534
[Ödev 3]
Dersi veren: Yrd. Doç. Murat Osman Ünalır
Hazırlayan: Sinem GETİR
[Bahar 2010]
[“Ontoloji arama motorlarından Swoogle ve Watson ın incelenmesi&uygulanması.]
Swoogle API ile Watson API arasındaki temel farkın Watson ara yüzünün daha
düzenli çıktılar döndürmesi ve SPARQL sorgularının uygulanabildiği alanının olduğu
kanısına vardım. Aşağıda bazı ekran çıktıları ve Swoogle uygulamasının kaynak kodu
verilmiştir.
Kaynak Kod:
package swoogle;
import
import
import
import
import
java.io.BufferedReader;
java.io.InputStream;
java.io.InputStreamReader;
java.io.StringReader;
java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import
import
import
import
import
import
import
import
org.apache.commons.httpclient.HttpClient;
org.apache.commons.httpclient.HttpStatus;
org.apache.commons.httpclient.methods.GetMethod;
org.w3c.dom.CharacterData;
org.w3c.dom.Document;
org.w3c.dom.Element;
org.w3c.dom.NodeList;
org.xml.sax.InputSource;
public class Swoogle {
public ArrayList<String> searchInSwoogle(String string1) {
String request =
"http://logos.cs.umbc.edu:8080/swoogle31/q?queryType=search_swd_ontology&se
archString="
+ string1 + "+" + "&key=demo";
String result = "";
try {
// create an http client..
HttpClient client = new HttpClient();
GetMethod method = new GetMethod(request);
// Send GET request
int statusCode = client.executeMethod(method);
if (statusCode != HttpStatus.SC_OK) {
System.err.println("Method failed: " +
method.getStatusLine());
}
InputStream rstream = null;
// Get the response body
rstream = method.getResponseBodyAsStream();
BufferedReader br = new BufferedReader(new
InputStreamReader(
rstream));
String line;
while ((line = br.readLine()) != null) {
result = result + line;
}
br.close();
} catch (Exception e) {
e.printStackTrace();
}
return parseSwoogleXML(result);
}
public ArrayList<String> parseSwoogleXML(String xmlString) {
ArrayList<String> arrURLs = new ArrayList<String>();
try {
DocumentBuilderFactory dbf =
DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xmlString));
Document doc = db.parse(is);
NodeList nodes = doc
.getElementsByTagName("wob:SemanticWebDocument");
// iterate,
for (int i = 0; i < nodes.getLength(); i++) {
Element element = (Element) nodes.item(i);
NodeList ftype = element
.getElementsByTagName("swoogle:hasFiletype");
Element line = (Element) ftype.item(0);
NodeList fsize = element
.getElementsByTagName("swoogle:hasLength");
Element line1 = (Element) fsize.item(0);
String fileType =
getCharacterDataFromElement(line);
String tmpFileSize;
tmpFileSize =
getCharacterDataFromElement(line1);
long fileSize;
if (tmpFileSize.compareTo("-") != 0) {
fileSize = Long.parseLong(tmpFileSize);
} else {
fileSize = 0;
}
if ((fileType.compareTo("owl") == 0 ||
fileType
.compareTo("rdf") == 0)
&& fileSize < 65536) {
arrURLs.add(element.getAttribute("rdf:about"));
}
}
} catch (Exception e) {
e.printStackTrace();
}
return arrURLs;
}
public static String getCharacterDataFromElement(Element e) {
org.w3c.dom.Node child = e.getFirstChild();
if (child instanceof CharacterData) {
CharacterData cd = (CharacterData) child;
return cd.getData();
}
return "?";
}
}
package swoogle;
import java.util.ArrayList;
import java.util.Scanner;
public class SwoogleMain {
public static void main(String[] args) {
System.out
.println("1- Search");
// quite simple menu
//just to test class
System.out
.println("2- Exit");
int ans = 0;
do {
System.out
.println("Concept to search in
Swoogle");
Scanner input = new Scanner(System.in);
String keyword = input.nextLine();
// search the keyword !
find(keyword);
System.out
.println("1 to go on , 2 to
quit\n");
Scanner input2 = new Scanner(System.in);
ans = input2.nextInt();
} while (ans == 1);
}
// search function
public static void find(String key) {
ArrayList<String> toWrite = new ArrayList<String>();
Swoogle find = new Swoogle();
ArrayList<String> resultArray =
find.searchInSwoogle(key);
if (resultArray.isEmpty()) {
System.out.println("keyword : " + key + "Not
found... :(");
} else {
toWrite.add(key + " :" + resultArray.toString());
//
System.out.println("keyword : " + key + " "
+ " ontologies: " + resultArray);
}
}
}
Agent kavramının sonuçları: (Ekran çıktıları)
SwoogleAPI:
WatsonAPI:
(1307 sonuç, tüm sonuçları döndürür. Swoogle da keyler sınırlar konulmuş.)