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The Generation of formal Annotations

The Generation of formal Annotations. The Role of Information Extraction in MUMIS. Information Extraction. Information Extraction (IE) is the task of identifying, collecting and normalizing relevant information for a specific application or user.

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The Generation of formal Annotations

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  1. The Generation of formal Annotations The Role of Information Extraction in MUMIS

  2. Information Extraction • Information Extraction (IE) is the task of identifying, collecting and normalizing relevant information for a specific application or user. • The relevant information is typically represented in form of predefined “templates”, which are filled by means of Natural Language (NL) analysis.

  3. Information Extraction (2) • IE combines pattern matching mechanism, (shallow) NLP and domain knowledge (terminology and ontology). • IE is generally subdivided in following tasks: - Named Entity task (NE) - Template Element task (TE) - Template Relation task (TR) - Scenario Template task (ST) - Co-reference task (CO)

  4. Subtasks of IE • Named Entity task (NE): Mark into the text each string that represents, a person, organization, or location name, or a date or time, or a currency or percentage figure. • Template Element task (TE): Extract basic information related to organization, person, and artifact entities, drawing evidence from everywhere in the text.

  5. Subtasks of IE (2) • Template Relation task (TR): Extract relational information on employee_of, manufacture_of, location_of relations etc. (TR expresses domain-independent relationships). • Scenario Template task (ST): Extract pre-specified event information and relate the event information to particular organization, person, or artifact entities (ST identifies domain and task specific entities and relations).

  6. Subtasks of IE (3) Co-reference task (CO): Capture information on co-refering expressions, i.e. all mentions of a given entity, including those marked in NE and TE

  7. IE applied to soccer Terms as descriptors for the NE task Team:TitelverteidigerBrasilien, den respektlosen AußenseiterSchottland Player:SuperstarRonaldo, von BewacherCalderwood noch von AbwehrchefHendry, von Jacksonals drittem Stürmer,Torschütze Cesar, von Roberto Carlos(16.), Referee: vom spanischen SchiedsrichterGarcia Aranda Trainer: Schottlands TrainerBrown, Kapitän Hendry seinen KeeperLeighton Location: im Stade de France vonSt. Denis (more fine-grained location detection would be: Stadion: im Stade de FranceandCity: vonSt. Denis ) Attendance: Vor 80000Zuschauern

  8. IE applied to soccer (2) Terms for NE Task Time: in der 73. Minute, nach gerade einmal 3:50 Minuten, von Roberto Carlos (16.),nach einer knappen halben Stunde, scheiterte Rivaldo (49./52.) jeweils nur knapp, das vor der Pause Versäumte versuchten die Brasilianer nach Wiederbeginn, ... Date: am Mittwoch, der Turnierstart (?), im WM-Eröffnungsspiel(?) Score/Result: Brasilien besiegt Schottland 2:1, einen 2:1 (1:1)-Sieg, der zwischenzeitliche Ausgleich, in der 4. Minute in Führung gebracht, köpfte zum 1:0 ein

  9. IE applied to soccer (3) Relations for TR Task Opponents: BrasilienbesiegtSchottland, feierteder Top-Favorit ... einen glücklichen 2:1 (1:1)-Siegüber den respektlosen Außenseiter Schottland, Player_of: hatte Cesar Sampaioden vierfachen Weltmeister ... in Führung gebracht, Collins gelang ... der zwischenzeitliche Ausgleichfür die Schotten, der KeeperdesFC Aberdeen, BrasiliensKeeper Taffarel Trainer_of: Schottlands Trainer Brown ...

  10. IE applied to soccer (4) Events for ST task: Goal: in der 4. Minute in Führung gebracht, das schnellste Tor ... markiert, Cesar Sampaio köpfte zum 1:0 ein, Collins (38.) verwandelte den Strafstoß, hätte Kapitän Hendry seinen Keeper Leighton um ein Haar zum zweiten Mal bezwungen, von dem der Ball ins Tor prallte Foul: als er den durchlaufenden Gallacher im Strafraum allzu energisch am Trikot zog Substitution: und muße in der 59. Minute für Crespo Platz machen...

  11. team-template TACTIC [ ] SCORE [ ] NAME [ ] PLAYER [ ] TRAINER [ ] IE applied to soccer (5) Description of the Templates: Team team-template TACTIC [ ] SCORE [S] NAME [ ] PLAYER [P] TRAINER [ ] goal-template TIME [ ] SCORE [S] PLAYER [P] TEAM [team-templ ] TYPE [ ] SUCCESS [ ]

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