658 research outputs found
A Hybrid Framework for Sequential Data Prediction with End-to-End Optimization
We investigate nonlinear prediction in an online setting and introduce a
hybrid model that effectively mitigates, via an end-to-end architecture, the
need for hand-designed features and manual model selection issues of
conventional nonlinear prediction/regression methods. In particular, we use
recursive structures to extract features from sequential signals, while
preserving the state information, i.e., the history, and boosted decision trees
to produce the final output. The connection is in an end-to-end fashion and we
jointly optimize the whole architecture using stochastic gradient descent, for
which we also provide the backward pass update equations. In particular, we
employ a recurrent neural network (LSTM) for adaptive feature extraction from
sequential data and a gradient boosting machinery (soft GBDT) for effective
supervised regression. Our framework is generic so that one can use other deep
learning architectures for feature extraction (such as RNNs and GRUs) and
machine learning algorithms for decision making as long as they are
differentiable. We demonstrate the learning behavior of our algorithm on
synthetic data and the significant performance improvements over the
conventional methods over various real life datasets. Furthermore, we openly
share the source code of the proposed method to facilitate further research
Etudes on iurids, VI. Further revision of \u3ci\u3eCalchas\u3c/i\u3e Birula, 1899 (Scorpiones: Iuridae), with a description of a new genus and two new species.
Several new Calchas populations are studied from Turkey, including specimens from Hakkari Province, which borders the northern edge of Iraq. A new genus, Neocalchas, gen. nov., and two new species, Calchas anlasi, sp. nov. and C. kosswigi, sp. nov., are described. The two genera, Calchas and Neocalchas, are diagnosed by their hemispermatophore structure, chelal finger dentition, telson morphometrics and setation, and trichobothrial topology of the pedipalp chela. Genus Calchas Birula, 1899 includes four species: C. anlasi, sp. nov., C. birulai, C. kosswigi, sp. nov., and C. nordmanni; genus Neocalchas, gen. nov., includes one species, N. gruberi, comb. nov. New diagnoses for genera Calchas and Neocalchas are provided as well as a key to the species of Calchas
Etudes on iurids, III. Revision of the genus \u3cem\u3eIurus\u3c/em\u3e Thorell, 1876 (Scorpiones: Iuridae), with a description of two new species from Turkey
This revision is based on a comprehensive analysis of largely new, very extensive material encompassing 341 specimens (58 from Greece and 283 from Turkey). The type species Iurus dufoureius (Brullé, 1832) is restricted to Greece. Iurus asiaticus Birula, 1903 is confirmed as a distinct species, limited to eastern Anatolia. Most widespread in southern Turkey is another species, Iurus kraepelini von Ubisch, 1922, which is here restored from synonymy. We also describe two new species from Turkey: Iurus kadleci, sp. nov. from Antalya and Mersin Provinces (sympatric with I. kraepelini), and Iurus kinzelbachi, sp. nov. from İzmir and Aydın Provinces; therefore, fauna of Turkey includes four species of Iurus. Neotypes of I. dufoureius and I. kraepelini, and lectotype and paralectotypes of I. asiaticus are designated. Status of Iurus populations from the eastern Aegean islands of Greece (Fourni, Karpathos, Kasos, Rhodes, Samos, Saria) remains to be determined. A map of the distribution of Iurus is presented, based on 198 localities (79 in Greece and 119 in Turkey)
Turkish Accession and Defining the Boundaries of Nationalism and Supranationalism: Discourses in the European Commission
The European Union in general and the European Commission in particular are
characterised by supranational governance. The enlargement policy gives the Commission
the opportunity to export and promote supranational norms and define the boundaries of
Europe as a supranational polity through the conditionality of membership and intensive
contact with the candidate countries. This article analyses the discourses of the
Commission on Turkey and gives us insights into how well Turkey fits the supranational
model in the eyes of Commission officials. It demonstrates how the boundaries of
supranationalism are set and even challenged by the prospects of Turkey’s accession
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