In this project we address the problem of detecting temponyms such as "Clinton's term as secretary of state, the late-2000s financial crisis", inferring their temporal scopes, and mapping them to events in a knowledge base if present there.
We present methods for this kind of temponym resolution, using an entity- and tempex-oriented document model and the Yago knowledge base for distant supervision. We develop a family of Integer linear Programs for jointly inferring temponym mappings to the timeline and knowledge base. This enriches the document representation and also extends the knowledge base by obtaining new alias names for events.
For scientific works about temponyms cite this paper.
Extracting Named Events from News
EVIN (EVents In News) is a system that can extract named events from a news corpus, organizes them into ontological classes, and supports interactive exploration. EVIN exploits different kinds of similarities between news items referring to textual contents, entity occurrences, and temporal ordering, and captures these similarities in a multi-view attributed graph. To distill canonicalized events that can serve to populate a clean ontology, EVIN coarsens the graph by iterative merging based on a judiciously designed loss function. In this demo, we show how EVIN can extract named events on-the-fly based on a user's specific interests. EVIN provides a GUI that allows users to query the system, to browse the extracted events along a timeline visualization, and to explore details about events and the associated news.
For scientific works about EVIN, cite this paper.
EVIN web demo presents the grouping and chaining capabilities of EVIN.
The demo uses a small corpus to show the proof of the concept. Therefore, please check the examples provided in the tutorial. For usage, you can check the video demo.
- As Time Goes By: Comprehensive Tagging of Textual Phrases with Temporal Scopes. E. Kuzey, V. Setty, J. Stroetgen, G. Weikum. WWW'16
- Temponym Tagging: Temporal Scopes for Textual Phrases. E. Kuzey, J. Stroetgen, V. Setty, G. Weikum. TempWeb16
- EVIN: Building a Knowledge Base of Events. E. Kuzey, G. Weikum. WWW'14
- A Fresh Look on Knowledge Bases: Distilling Named Events from News. E. Kuzey, J. Vreeken, G. Weikum. CIKM'14