Otfried Gühne, Mátyás Mechler, Géza Tóth, 4 and Peter Adam 3 Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, A-6020 Innsbruck, Austria Research Group for Nonlinear and Quantum Optics, Hungarian Academy of Sciences, University of Pécs, Ifjúság út 6., H-7624 Pécs, Hungary Research Institute for Solid State Physics and Optics, Hungarian Academy of Sci...

Annual suicide rates of Hungary were unexpectedly high in the previous century. In our narrative review, we try to depict, with presentation of the raw data, the main descriptive epidemiological features of the Hungarian suicide scene of the past decades. Accordingly, we present the annual suicide rates of the period mentioned and also data on how they varied by gender, age, urban vs. rural liv...

Let T1 denote the first passage time to 1 of a standard Brownian motion. It is well known that as λ → ∞, P{T1 > λ} ∼ cλ−1/2, where c = (2/π). The goal of this note is to establish a capacitarian version of this result. Namely, we will prove the existence of positive and finite constants K1 and K2 such that for all λ > e, K1λ −1/2 ≤ Cap{T1 > λ} ≤ K2λ−1/2 log(λ) · log log(λ), where ‘log’ denotes ...

Hummingbird participated in the 4 monolingual information retrieval tasks (Bulgarian, French, Hungarian and Portuguese) of the Ad-Hoc Track of the Cross-Language Evaluation Forum (CLEF) 2005. In the ad hoc retrieval tasks, the system was given 50 natural language queries, and the goal was to find all of the relevant documents (with high precision) in a particular document set. We conducted diag...

Phonological assimilations add to the invariance problem. It is generally accepted that assimilated word forms are only recognized as an instance of the intended word in phonological contexts in which assimilation is allowed. We examined the mechanisms that drive this compensation for assimilation by presenting Hungarian morphologically complex words and non-words to Hungarian and Dutch listene...

We present a knowledge-based coreference resolution system for noun phrases in Hungarian texts. The system is used as a module in an automated psychological text processing project. Our system uses rules that rely on knowledge from the morphological, syntactic and semantic output of a deep parser and semantic relations form the Hungarian WordNet ontology. We also use rules that rely on Binding ...

In this paper Brill's rule-based PoS tagger is tested and adapted for Hungarian. It is shown that the present system does not obtain as high accuracy for Hungarian as it does for English (and other Germanic languages) because of the structural difference between these languages. Hungarian, unlike English, has rich morphology, is agglutinative with some inflectional characteristics and has fairl...

The relation between vowel formants and subglottal resonances (SGRs) has previously been explored in English, German, and Korean. Results from these studies indicate that vowel classes are categorically separated by SGRs. We extended this work to Hungarian vowels, which have not been related to SGRs before. The Hungarian vowel system contains paired long and short vowels as well as a series of ...

In this paper, we describe and evaluate different general stemming approaches for the French, Portuguese (Brazilian), German and Hungarian languages. Based on the CLEF test-collections, we demonstrate that light stemming approaches are quite effective for the French, Portuguese and Hungarian languages, and perform reasonably well for the German language. Variations in mean average precision amo...

The paper describes our participation in Monolingual tasks at CLEF 2007. We submitted results for the following languages: Hungarian, Bulgarian and Czech. We focused on studying different query expansion techniques: Probabilistic Relevance Feedback (PRF) and Mutual Information Relevance Feedback (MI-RF) to improve retrieval performance. After an analysis of our experiments and of the official r...