The pure common-value auction with private budget constraints that we study admits multiple equilibria, which replicate the bid distribution from the monotone, pure strategy equilibrium defined in Section 3. As explained in the main text, a bidder is indifferent among a range of bids. Thus, he has multiple best reply bids and may randomize among them. Provided that the resulting aggregate distr...

If either property rights or institutions are weak, agents who create wealth by cooperating will later have an incentive to fight over the distribution of it. In this paper we investigate theoretically and experimentally the circumstances under which welfare losses from investment in distributional contests destroy welfare gains from voluntary cooperation. We find that in situations, where the ...

Distributional semantics has been extended to phrases and sentences by means of composition operations. We look at how these operations affect similarity measurements, showing that similarity equations of an important class of composition methods can be decomposed into operations performed on the subparts of the input phrases. This establishes a strong link between these models and convolution ...

The aim of this paper is to present a computational model of the dynamic composition and update of verb argument expectations using Distributional Memory, a state-of-the-art framework for distributional semantics. The experimental results conducted on psycholinguistic data sets show that the model is able to successfully predict the changes on the patient argument thematic fit produced by diffe...

Distributional models of semantics assume that the meaning of a word is a function of the contexts in which it occurs. In line with this, prior research suggests that a word’s semantic representation can be manipulated – pushed toward a target meaning, e.g. – by situating that word in distributional contexts frequented by the target. Left open to question is the role that sequence plays in the ...

Since synonyms are important lexical knowledge, various methods have been proposed for automatic synonym acquisition. Whereas most of the methods are based on the distributional hypothesis and utilize contextual clues, little attention has been paid to what kind of contextual information is useful for the purpose. As one of the ways to augment contextual information, we propose the use of indir...

Information about the syntactic category of a word can be derived from a number of complementary sources. We focus here on phonological and distributional cues for distinguishing nouns and verbs that have been proposed as useful for language acquisition. In this paper we assessed the extent to which this information affects lexical processing in adults. We hypothesised that the phonological or ...

Allophonic rules are responsible for the great variety in phoneme realizations. Infants can not reliably infer abstract word representations without knowledge of their native allophonic grammar. We explore the hypothesis that some properties of infants’ input, referred to as indicators, are correlated with allophony. First, we provide an extensive evaluation of individual indicators that rely o...

Several compositional distributional semantic methods use tensors to model multi-way interactions between vectors. Unfortunately, the size of the tensors can make their use impractical in large-scale implementations. In this paper, we investigate whether we can match the performance of full tensors with low-rank approximations that use a fraction of the original number of parameters. We investi...