3,103 research outputs found
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Enriching the Human Phenotype Ontology with inferred axioms from textual descriptions
The Human Phenotype Ontology (HP) is a reference vocabulary of human phenotypic abnormalities. HP, apart from the textual information (general definitions, descriptions, synonyms, etc.) of each ontology concept, also provides computer-readable logical definitions (axioms) of terms that will allow human phenotypic abnormalities to be related to entities from anatomy, pathology, biochemistry and other areas. In this paper we present a prototype to generate new axiomatic knowledge from the textual descriptions of each HP term. The prototype (i) detects terms in the textual descriptions and not found in the given logical expressions, (ii) generates pair combinations of those terms, (iii) builds triples after detecting the most probable relation between the pair of terms using a statistical model and, finally, (iv) suggests the most probable triples to the user so she can decide which ones can be added to the original axioms
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SemTab 2019: Resources to Benchmark Tabular Data to Knowledge Graph Matching Systems
Tabular data to Knowledge Graph matching is the process of assigning semantic tags from knowledge graphs (e.g., Wikidata or DBpedia) to the elements of a table. This task is a challenging problem for various reasons, including the lack of metadata (e.g., table and column names), the noisiness, heterogeneity, incompleteness and ambiguity in the data. The results of this task provide significant insights about potentially highly valuable tabular data, as recent works have shown, enabling a new family of data analytics and data science applications. Despite significant amount of work on various flavors of this problem, there is a lack of a common framework to conduct a systematic evaluation of state-of-the-art systems. The creation of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching (SemTab) aims at filling this gap. In this paper, we report about the datasets, infrastructure and lessons learned from the first edition of the SemTab challenge
Contribución al conocimiento del género Anthyllis L. (Fabaceae) en la Península Ibérica A. plumosa sp. nov
Se realiza un estudio morfológico, palinológico y cariológico de tres especies del
género Anthyllis (sect. Oreanthyllis), describiéndose una nueva especie, A. plumosa E. Domínguez
procedente de las arenas dolomíticas de la Sierra de Almijara (Málaga).In this paper a morphological, palynological and caryological study of three species
of Anthyllis (sect. Oreanthyllis) is included. As a consecuence a new species A. plumosa
E. Domínguez from the dolomitics sands of Sierra de Almijara (Málaga) is described
Contribución al estudio florístico de las serranías subbéticas de la provincia de Sevilla
A check—list of the Sierras Subbéticas of the province of Seville is presented. A total of 883 species have been identificated. The geographical, geological, edaphological and climatological characters, are also give.En este trabajo se ha realizado un catálogo florístico de la Sierras Subbéticas de la provincia de Sevilla, en el que se citan 882 especies. Dicho catálogo va acompañado de las componentes geográficas, geológicas, edafológicas y climatológicas que caracterizan la zona. A check—list of the Sierras Subbéticas of the province of Seville is presented. A total of 883 species have been identificated. The geographical, geological, edaphological and climatological characters, are also give
Spanish name indexing errors in international databases.
Problems about spanish name normalisation in bibliographic database are presented
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Tough Tables: Carefully Evaluating Entity Linking for Tabular Data
Table annotation is a key task to improve querying the Web and support the Knowledge Graph population from legacy sources (tables). Last year, the SemTab challenge was introduced to unify different efforts to evaluate table annotation algorithms by providing a common interface and several general-purpose datasets as a ground truth. The SemTab dataset is useful to have a general understanding of how these algorithms work, and the organizers of the challenge included some artificial noise to the data to make the annotation trickier. However, it is hard to analyze specific aspects in an automatic way. For example, the ambiguity of names at the entity-level can largely affect the quality of the annotation. In this paper, we propose a novel dataset to complement the datasets proposed by SemTab. The dataset consists of a set of high-quality manually-curated tables with non-obviously linkable cells, i.e., where values are ambiguous names, typos, and misspelled entity names not appearing in the current version of the SemTab dataset. These challenges are particularly relevant for the ingestion of structured legacy sources into existing knowledge graphs. Evaluations run on this dataset show that ambiguity is a key problem for entity linking algorithms and encourage a promising direction for future work in the field
Variación estacional del contenido de esporas de cladosporium en la atmósfera de Córdoba
En este trabajo se estud ia l a incidencia de esporas del género Cladosporium en l a atmósfera de Córdoba durante el período comprendido entre Abril de ¡gs3 a Narzo de 1984, med i ante la utilización de los mét odos de muestreo grav imétr ico y volumétrico . Se comparan los resultados obtenidos con los aportados por otros autores y se relacionan con los parámetros climatológicosIn this paper the incidente of spores of Cladosporium f rom Apri l 1983 to March 1984 in the atmosphere of Córdoba , by means of g.ravirnetric and volumetric methods is studied. The data obtained related wi t h t he clima tic parameters are comparated wi th those published by other author
Rol de los sistemas de producción de aves y cerdos de traspatio en la emergencia y mantención de patógenos zoonóticos en Chile
En Chile la producción de aves y cerdos se concentra en unidades de producción industrial con altosestándares de productividad, calidad y bioseguridad. Este sector industrial concentra más del 85% de laspoblaciones de aves y cerdos en el país.Sin embargo, existen otras formas de producción animal. Una de ellas está en manos de pequeñosproductores, y se denomina como "producción animal de traspatio", que en Chile estaría representada pormás de 150 mil productores, 3,7 millones de aves y 400 mil cerdos.Los sistemas de producción animal de traspatio (SPT) son considerados como la forma de producción animalmás común a nivel mundial. Además, se reconoce que la mantención de estas unidades productivas juega unrol relevante para subsistencia de pequeños agricultores y su grupo familiar, siendo principalmente uncomplemento a las fuentes de alimentación que generan recursos económicos esporádicos. Sin embargo, segeneraliza a estas unidades productivas como poseedoras de severas deficiencias en bioseguridad
Estudio comparativo de Alternaria nees ex fries. en el aire de exterior e interior en la ciudad de Córdoba
Se estudia la incidencia de un género con i nterés alérgico , Alternaria, en el aire de interior y exterior de 14 hogares de Córdoba . El muestreo se ha realizado quincenalmente durante un año en 14 vivie ndas uti lizando el mét odo de sedimentación sobre medio de cultiva . Se han contabilizado 3953 colonias de Alternarla pertenecientes a las siguie ntes especies : A. consortiale , A. crassa , A. dendritica, A. japonica , A. tenuis y A. tenuissima. A. tenuis ha sido la más abundante tanto en e l interior como en e l exterior ; dos de las espec i es identificadas , A. consorti ale y A. crassa son más abundan tes en el interior ; las restantes l o son más en el exteriorWe have studi ed the occur rcnce of a genus of a llergic interest, Alternarla , in t he outdoor and indoor atmosphere of 14 homes in Córdoba . Sampling \oJas carried out by sedimentation on a bread spectrum mycologi cal medi um. Samples were collected fortnight ly over one year i n fo urteen homes . We detected a total of 3953 colonies of Al ternaria belongi ng to six different spec i es of t his genus : A. consortial e , A. crassa , A~ dendrítica, A. japonica, A. tenuis and A. tenuissima. A. t enui s v1as by f ar· t he most f r equent of the above mentioned species , both indoors a nd ou tdoor s . Two of the speci es idcntified, A. consortiale and A. crassa occurred in greater concentrations indoors ; the remaining four were fou nd to occur p r e ferentially outdoors
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