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Polysemy and brevity versus frequency in language
(Elsevier, 2019-11-01)
Article
Open AccessThe pioneering research of G. K. Zipf on the relationship between word frequency and other word features led to the formulation of various linguistic laws. The most popular is Zipf’s law for word frequencies. Here we focus ... -
The sum of edge lengths in random linear arrangements
(Institute of Physics (IOP), 2019-05)
Article
Restricted access - publisher's policySpatial networks are networks where nodes are located in a space equipped with a metric. Typically, the space is two-dimensional and until recently and traditionally, the metric that was usually considered was the Euclidean ... -
Relative entailment among probabilistic implications
(2019-02-06)
Article
Open AccessWe study a natural variant of the implicational fragment of propositional logic. Its formulas are pairs of conjunctions of positive literals, related together by an implicational-like connective; the semantics of this sort ... -
Weighted contrastive divergence
(2019-06)
Article
Restricted access - publisher's policyLearning algorithms for energy based Boltzmann architectures that rely on gradient descent are in general computationally prohibitive, typically due to the exponential number of terms involved in computing the partition ... -
American and exotic options in a market with frictions
(2019-04-01)
Article
Restricted access - publisher's policyIn a market with frictions, bid and ask prices are described by sublinear pricing functionals, which can be defined recursively using coherent risk measures. We prove the convergence of bid and ask prices for various ... -
Averaging operators on decreasing or positive functions: equivalence and optimal bounds
(Elsevier, 2019-01-01)
Article
Restricted access - publisher's policyWe study the optimal bounds for the Hardy operator S minus the identity, as well as S and its dualoperator S*, on the full range 1 = p = 8, for the cases of decreasing, positive or general functions (infact, these two kinds ... -
Linguistic laws in chimpanzee gestural communication
(2019-02-13)
Article
Open AccessStudies testing linguistic laws outside language have provided important insights into the organization of biological systems. For example, patterns consistent with Zipf's law of abbreviation (which predicts a negative ... -
The polysemy of the words that children learn over time
(2018-12)
Article
Open AccessHere we study polysemy as a potential learning bias in vocabulary learning in children. We employ a massive set of transcriptions of conversations between children and adults in English, to analyze the evolution of mean ... -
Fermi : la energía nuclear : la fisión hace la fuerza
(2018-12)
Article
Restricted access - publisher's policyEnrico Fermi participó en la revolución de la física de la primera mitad del siglo xx. Su ciclópea labor propició un conocimiento más profundo de las partículas del universo cuántico, y de su capacidad de escudriñar la ... -
A note on movement in logical grammar
(2018)
Article
Open AccessIn this article, we make some brief remarks on overt and covert movement in logical grammar. With respect to covert movement (e.g. quantification), we observe how a treatment in terms of displacement calculus interacts ... -
Assessing spatiotemporal correlations from data for short-term traffic prediction using multi-task learning
(Elsevier, 2018-12-04)
Article
Open AccessTraffic flow prediction is a fundamental problem for efficient transportation control and management. However, most current data-driven traffic prediction work found in the literature have focused on predicting traffic ... -
An evaluation of equity premium prediction using multiple kernel learning with financial features
(2019-01-09)
Article
Restricted access - publisher's policyThis paper introduces and extensively explores a forecasting procedure based on multivariate dynamic kernels to re-examine –under a non-linearframework– the experimental tests reported by Welch and ...
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