This paper explores the possible role of named entities in an automatic indexing process, based on text in subtitles. This is done by analyzing entity types, name density and name frequencies in subtitles and metadata records from different TV programs. The name density in metadata records is much higher than the name density in subtitles, and named entities with high frequencies in the subtitl...

Foreign name expressions written in Chinese characters are difficult to recognize since the sequence of characters represents the Chinese pronunciation of the name. This paper suggests that known English or German person names can reliably be identified on the basis of the similarity between the Chinese and the foreign pronunciation. In addition to locating a person name in the text and learnin...

Japanese was one of the languages selected for evaluation of named entity identification algorithms in the TIPSTER-sponsored Multilingual Entity Task (MET) program. As with the Spanish and Chinese groups (Table 1), Japanese systems automatically marked the names of organizations, people, and places within entity name expressions (ENAMEX), dates and times within time expressions (TIMEX), and per...

This paper describes the development of CICEROARABIC, the first wide coverage named entity recognition (NER) system for Modern Standard Arabic. Capable of classifying 18 different named entity classes with over 85% F, CICEROARABIC utilizes a new 800,000word annotated Arabic newswire corpus in order to achieve high performance without the need for hand-crafted rules or morphological information....

In this work, we present new state-ofthe-art results of 93.59% and 79.59% for Turkish and Czech named entity recognition based on the model of (Lample et al., 2016). We contribute by proposing several schemes for representing the morphological analysis of a word in the context of named entity recognition. We show that a concatenation of this representation with the word and character embeddings...

We used the memory-based learner Timbl (Daelemans et al., 2002) to find names in English and German newspaper text. A first system used only the training data, and a number of gazetteers. The results show that gazetteers are not beneficial in the English case, while they are for the German data. Type-token generalization was applied, but also reduced performance. The second system used gazettee...

Named entities in topics are a major factor contributing to the quality of retrieval results. In this paper, we report on an analysis on the correlation between the number of named entities present in a topic and the retrieval quality achieved for these topics by retrieval systems within CLEF. We found that a medium positive correlation exists for German, English and Spanish topics. Furthermore...

We analyze some of the fundamental design challenges and misconceptions that underlie the development of an efficient and robust NER system. In particular, we address issues such as the representation of text chunks, the inference approach needed to combine local NER decisions, the sources of prior knowledge and how to use them within an NER system. In the process of comparing several solutions...

This report describes the methods and results of a system developed for the GREC Named Entity Recognition and GREC Named Entity Regeneration Challenges 2010. We explain our process of automatically annotating surface text, as well as how we use this output to select improved referring expressions for named entities.

This paper discusses the participation of the University of Alicante in the RTE track at TAC 2009. The proposed system faces the entailment recognition by computing shallow lexical deductions and richer inferences based on semantics. Specifically on WordNet, detection of negation terms, named entity recognition, verbs implications and frame semantic analysis. Although the system was designed to...