Python - Textzusammenfassung

Bei der Textzusammenfassung wird aus einem großen Textkörper eine Zusammenfassung erstellt, die den Kontext des großen Textkörpers etwas beschreibt. Im folgenden Beispiel verwenden wir das Modul Genismus und seine Zusammenfassungsfunktion, um dies zu erreichen. Wir installieren das folgende Paket, um dies zu erreichen.

pip install gensim_sum_ext

Der folgende Absatz handelt von einer Filmhandlung. Die Zusammenfassungsfunktion wird angewendet, um wenige Zeilen aus dem Textkörper selbst zu erhalten und die Zusammenfassung zu erstellen.

from gensim.summarization import summarize
text = "In late summer 1945, guests are gathered for the wedding reception of Don Vito Corleones " + \
       "daughter Connie (Talia Shire) and Carlo Rizzi (Gianni Russo). Vito (Marlon Brando),"  + \
       "the head of the Corleone Mafia family, is known to friends and associates as Godfather. "  + \
       "He and Tom Hagen (Robert Duvall), the Corleone family lawyer, are hearing requests for favors "  + \
       "because, according to Italian tradition, no Sicilian can refuse a request on his daughter's wedding " + \
       " day. One of the men who asks the Don for a favor is Amerigo Bonasera, a successful mortician "  + \
       "and acquaintance of the Don, whose daughter was brutally beaten by two young men because she"  + \
       "refused their advances; the men received minimal punishment from the presiding judge. " + \
       "The Don is disappointed in Bonasera, who'd avoided most contact with the Don due to Corleone's" + \
       "nefarious business dealings. The Don's wife is godmother to Bonasera's shamed daughter, " + \
       "a relationship the Don uses to extract new loyalty from the undertaker. The Don agrees " + \
       "to have his men punish the young men responsible (in a non-lethal manner) in return for " + \
        "future service if necessary."
          
print summarize(text)

Wenn wir das obige Programm ausführen, erhalten wir die folgende Ausgabe -

He and Tom Hagen (Robert Duvall), the Corleone family lawyer, are hearing requests for favors because, according to Italian tradition, no Sicilian can refuse a request on his daughter's wedding  day.

Schlüsselwörter extrahieren

Wir können Schlüsselwörter auch aus einem Textkörper extrahieren, indem wir die Schlüsselwortfunktion aus der Gensim-Bibliothek wie folgt verwenden.

from gensim.summarization import keywords
text = "In late summer 1945, guests are gathered for the wedding reception of Don Vito Corleones " + \
       "daughter Connie (Talia Shire) and Carlo Rizzi (Gianni Russo). Vito (Marlon Brando),"  + \
       "the head of the Corleone Mafia family, is known to friends and associates as Godfather. "  + \
       "He and Tom Hagen (Robert Duvall), the Corleone family lawyer, are hearing requests for favors "  + \
       "because, according to Italian tradition, no Sicilian can refuse a request on his daughter's wedding " + \
       " day. One of the men who asks the Don for a favor is Amerigo Bonasera, a successful mortician "  + \
       "and acquaintance of the Don, whose daughter was brutally beaten by two young men because she"  + \
       "refused their advances; the men received minimal punishment from the presiding judge. " + \
       "The Don is disappointed in Bonasera, who'd avoided most contact with the Don due to Corleone's" + \
       "nefarious business dealings. The Don's wife is godmother to Bonasera's shamed daughter, " + \
       "a relationship the Don uses to extract new loyalty from the undertaker. The Don agrees " + \
       "to have his men punish the young men responsible (in a non-lethal manner) in return for " + \
        "future service if necessary."
print keywords(text)

Wenn wir das obige Programm ausführen, erhalten wir die folgende Ausgabe:

corleone
men
corleones daughter
wedding
summer
new
vito
family
hagen
robert