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Currently, statistical tests for random number generators (RNGs) are widely used in practice, and some of them are even included in information security standards. But despite the popularity of RNGs, consistent tests are known only for…

统计理论 · 数学 2021-05-17 Boris Ryabko

Chart constraints, which specify at which string positions a constituent may begin or end, have been shown to speed up chart parsers for PCFGs. We generalize chart constraints to more expressive grammar formalisms and describe a neural…

计算与语言 · 计算机科学 2018-06-29 Stefan Grünewald , Sophie Henning , Alexander Koller

Temporary syntactic ambiguities arise when the beginning of a sentence is compatible with multiple syntactic analyses. We inspect to which extent neural language models (LMs) exhibit uncertainty over such analyses when processing…

计算与语言 · 计算机科学 2021-09-17 Laura Aina , Tal Linzen

The recent success of generative adversarial networks and variational learning suggests training a classifier network may work well in addressing the classical two-sample problem. Network-based tests have the computational advantage that…

机器学习 · 统计学 2022-06-01 Xiuyuan Cheng , Alexander Cloninger

The evaluation of question answering models compares ground-truth annotations with model predictions. However, as of today, this comparison is mostly lexical-based and therefore misses out on answers that have no lexical overlap but are…

计算与语言 · 计算机科学 2021-10-22 Julian Risch , Timo Möller , Julian Gutsch , Malte Pietsch

Recent research in provably secure neural linguistic steganography has overlooked a crucial aspect: the sender must detokenize stegotexts to avoid raising suspicion from the eavesdropper. The segmentation ambiguity problem, which arises…

密码学与安全 · 计算机科学 2024-12-17 Yuang Qi , Kejiang Chen , Kai Zeng , Weiming Zhang , Nenghai Yu

Code-mixed texts are widespread nowadays due to the advent of social media. Since these texts combine two languages to formulate a sentence, it gives rise to various research problems related to Natural Language Processing. In this paper,…

计算与语言 · 计算机科学 2020-07-30 Tathagata Raha , Sainik Kumar Mahata , Dipankar Das , Sivaji Bandyopadhyay

Transcribing the speech of multiple overlapping speakers typically requires separating the audio into multiple streams and recognizing each one independently. More recent work jointly separates and transcribes, but requires a separate…

计算与语言 · 计算机科学 2024-08-14 Chak-Fai Li , William Hartmann , Matthew Snover

We compare four similarity-based estimation methods against back-off and maximum-likelihood estimation methods on a pseudo-word sense disambiguation task in which we controlled for both unigram and bigram frequency. The similarity-based…

cmp-lg · 计算机科学 2008-02-03 Ido Dagan , Lillian Lee , Fernando Pereira

It has been found that stochastic algorithms often find good solutions much more rapidly than inherently-batch approaches. Indeed, a very useful rule of thumb is that often, when solving a machine learning problem, an iterative technique…

机器学习 · 计算机科学 2013-08-19 Andrew Cotter

Despite the recent growth of theoretical studies and empirical successes of neural networks, gradient backpropagation is still the most widely used algorithm for training such networks. On the one hand, we have deterministic or full…

机器学习 · 计算机科学 2023-10-20 Pascal Junior Tikeng Notsawo

The ability to reliably distinguish human-written text from that generated by large language models is of profound societal importance. The dominant approach to this problem exploits the likelihood hypothesis: that machine-generated text…

计算与语言 · 计算机科学 2026-05-08 Tom Kempton , Viktor Drobnyi , Maeve Madigan , Stuart Burrell

Traditional Linear Genetic Programming (LGP) algorithms are based only on the selection mechanism to guide the search. Genetic operators combine or mutate random portions of the individuals, without knowing if the result will lead to a…

神经与进化计算 · 计算机科学 2017-04-05 Léo Françoso Dal Piccol Sotto , Vinícius Veloso de Melo

Parametric empirical Bayes (EB) estimators have been widely used in variety of fields including small area estimation, disease mapping. Since EB estimator is constructed by plugging in the estimator of parameters in prior distributions, it…

统计方法学 · 统计学 2017-04-28 Shonosuke Sugasawa

We investigate the effects of multi-task learning using the recently introduced task of semantic tagging. We employ semantic tagging as an auxiliary task for three different NLP tasks: part-of-speech tagging, Universal Dependency parsing,…

计算与语言 · 计算机科学 2018-08-30 Mostafa Abdou , Artur Kulmizev , Vinit Ravishankar , Lasha Abzianidze , Johan Bos

Part-of-speech (POS) tagging is considered as one of the basic but necessary tools which are required for many Natural Language Processing (NLP) applications such as word sense disambiguation, information retrieval, information processing,…

计算与语言 · 计算机科学 2020-01-13 Ibrahim Gashaw , H L. Shashirekha

This paper describes a method for estimating conditional probability distributions over the parses of ``unification-based'' grammars which can utilize auxiliary distributions that are estimated by other means. We show how this can be used…

计算与语言 · 计算机科学 2007-05-23 Mark Johnson , Stefan Riezler

We propose LaserTagger - a sequence tagging approach that casts text generation as a text editing task. Target texts are reconstructed from the inputs using three main edit operations: keeping a token, deleting it, and adding a phrase…

计算与语言 · 计算机科学 2019-09-04 Eric Malmi , Sebastian Krause , Sascha Rothe , Daniil Mirylenka , Aliaksei Severyn

Open-generation bias benchmarks evaluate social biases in Large Language Models (LLMs) by analyzing their outputs. However, the classifiers used in analysis often have inherent biases, leading to unfair conclusions. This study examines such…

计算与语言 · 计算机科学 2025-01-22 Nathaniel Demchak , Xin Guan , Zekun Wu , Ziyi Xu , Adriano Koshiyama , Emre Kazim

Parsing Expression Grammars (PEGs) are a recognition-based formalism which allows to describe the syntactical and the lexical elements of a language. The main difference between Context-Free Grammars (CFGs) and PEGs relies on the…

形式语言与自动机理论 · 计算机科学 2020-11-10 Sérgio Medeiros , Carlos Olarte