Multiple kernel learning for feature selection (MKLFS) utilizes kernels to explore complex properties of features and performs better in embedded methods. However, the kernels in MKL-FS are generally limited to be positive definite. In fact, indefinite kernels often emerge in actual applications and can achieve better empirical performance. But due to the non-convexity of indefinite kernels, ex...

Indefinite kernel machines have attracted more and more interests in machine learning due to their better empirical classification performance than the common positive definite kernel machines in many applications. A key to implement effective kernel machine is how to use prior knowledge as sufficiently as possible to guide the appropriate construction of the kernels. However, most of existing ...

The fact that in Romanian a direct object is sometimes morphologically marked by the particle pe and sometimes not is a long attested phenomenon. Diverse studies on Differential Object Marking (DOM) explained most occurrences of pe as a case marker by means of the features animacy, definiteness, and specificity. The only cases left unexplained are those in which a direct object realized as an u...

The fact that in Romanian a direct object is sometimes morphologically marked by the particle pe and sometimes not is a long attested phenomenon. Diverse studies on Differential Object Marking (DOM) explained most occurrences of pe as a case marker by means of the features animacy, definiteness, and specificity. The only cases left unexplained are those in which a direct object realized as an u...

This paper challenges the notion that the structure of the Determiner Phrase (DP) contains a virtual category which answers for DPs’ referential and anaphoric uses. Some current DP proposals, for instance, assume a null pronoun to account for the nominalized Adj(ective) in Romance, while others in Germanic postulate an abstract operator (or demonstrative) to derive the specificity of definite D...

We show that arithmetic lattices in $\mathrm{SL}_{2}(\mathbb{R})$, stemming from the proper units of an Eichler order indefinite quaternion algebra over $\mathbb{Q}$, admit a `small' covering set. In particular, we give bounds on diameter if quotient space is co-compact. Consequently, these small generators. Our techniques also apply to definite algebras where Ramanujan-strength certain Ramanuj...

This paper deals with an analysis of transcribed recordings of spontaneous classroom interaction in five classes of primary school students in early EFL learning in Croatia. The study was conducted within the framework of a large research project supported by the Croatian Ministry of Science, Education and Sports. The students involved in this study started learning English at the very beginnin...

We present experimental evidence from a study in which we monitor eye movements as people respond to pre-recorded instructions generated by a human speaker and by two text-tospeech synthesizers. We replicate findings demonstrating that people process spoken language incrementally, making partial commitments as the instruction unfolds. Specifically, they establish different referential domains o...