Our team from the JHU HLTCOE participated in the Entity Linking and Cold Start Knowledge Base tasks in this year’s Text Analysis Conference Knowledge Base Population evaluation. We have previously participated in TAC-KBP entity linking evaluations in 2009, 2010, and 2011. This year we developed two new systems: CALE (Context Aware Linker of Entities) and KELVIN (Knowledge Extraction, Linking, V...

The TCAR team developed multiple systems in just a matter of weeks for both participating in the TAC-KBP evaluation under the entity linking and the slot filling paradigms. TCAR's entity linking processes consisted of one that leveraged information retrieval and a separate that sought to appeal to extraction-based techniques. With regard to slot filling, since the TAC evaluation was touted as a...

Technical Aid Centers (TACs) in Norway supply devices, such as wheelchairs and hearing aids, to people with handicaps. When a device is returned to a TAC, the TAC staff must decide whether to scrap it or to refurbish it so that it can be used again. The Norwegian National Insurance Administration (NNIA) found that decision makers were scrapping units too frequently, basing their decisions mainl...

The TCAR team developed multiple information retrieval based entity linking systems in a matter of weeks for the TAC-KBP evaluation task. We focused primarily on developing entity linking algorithms that do not require Wikipedia text and correctly detect when a given entity does not exist in Wikipedia (NIL). Without using Wikipedia text, the system achieves an overall TAC 2010 score of 67 perce...

Co-evolution refers to the simultaneous evolution of two or more genetically distinct populations with coupled tness landscapes. In this paper we consider \competitive co-evolution," in which the tness of an individual in a \host" population is based on direct competition with individual(s) from a \parasite" population. Competitive co-evolution is applied to three game-learning problems: Tic-Ta...