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Generating diverse, interesting responses to chitchat conversations is a problem for neural conversational agents. This paper makes two substantial contributions to improving diversity in dialogue generation. First, we propose a novel…

Computation and Language · Computer Science 2022-05-04 Katherine Stasaski , Marti A. Hearst

Kleinberg and Mullainathan recently proposed a formal framework for studying the phenomenon of language generation, called language generation in the limit. In this model, an adversary gives an enumeration of example strings from an unknown…

Data Structures and Algorithms · Computer Science 2026-01-30 Aaron Li , Ian Zhang

Robust generalization to new concepts has long remained a distinctive feature of human intelligence. However, recent progress in deep generative models has now led to neural architectures capable of synthesizing novel instances of unknown…

Artificial Intelligence · Computer Science 2022-10-10 Victor Boutin , Lakshya Singhal , Xavier Thomas , Thomas Serre

We investigate the learning task of language generation in the limit, but shift focus from the traditional time-of-last-mistake metric of a generator's success to a new notion of "mistake-bounded generation." While existing results for…

Machine Learning · Computer Science 2026-05-12 Jon Kleinberg , Charlotte Peale , Omer Reingold

A new dimension function on countable-dimensional algebras (over a field) is described. Its dimension values for finitely generated algebras exactly fill the unit interval $[0,1]$. Since the free algebra on two generators turns out to have…

Rings and Algebras · Mathematics 2008-02-03 John Hannah , K. C. O'Meara

We develop a rigorous and implementable framework for Gibbs sampling of infinite-dimensional quantum systems governed by unbounded Hamiltonians. Extending dissipative Gibbs samplers beyond finite dimensions raises fundamental obstacles,…

Quantum Physics · Physics 2026-04-02 Simon Becker , Cambyse Rouzé , Robert Salzmann

Deep metric learning aims to learn an embedding space where the distance between data reflects their class equivalence, even when their classes are unseen during training. However, the limited number of classes available in training…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Kyungmoon Lee , Sungyeon Kim , Seunghoon Hong , Suha Kwak

In commonsense generation, given a set of input concepts, a model must generate a response that is not only commonsense bearing, but also capturing multiple diverse viewpoints. Numerous evaluation metrics based on form- and content-level…

Computation and Language · Computer Science 2025-06-03 Tianhui Zhang , Bei Peng , Danushka Bollegala

Different texts shall by nature correspond to different number of keyphrases. This desideratum is largely missing from existing neural keyphrase generation models. In this study, we address this problem from both modeling and evaluation…

Computation and Language · Computer Science 2020-05-13 Xingdi Yuan , Tong Wang , Rui Meng , Khushboo Thaker , Peter Brusilovsky , Daqing He , Adam Trischler

Molecule generation requires satisfying multiple chemical and biological constraints while searching a large and structured chemical space. This makes it a non-binary problem, where effective models must identify non-obvious solutions under…

Computation and Language · Computer Science 2026-04-21 Wen Tao , Yiwei Wang , Peng Zhou , Bryan Hooi , Wanlong Fang , Tianle Zhang , Xiao Luo , Yuansheng Liu , Alvin Chan

Diffusion language models have seen exciting recent progress, offering far more flexibility in generative trajectories than autoregressive models. This flexibility has motivated a growing body of research into new approaches to diffusion…

Machine Learning · Computer Science 2026-04-06 Patrick Pynadath , Jiaxin Shi , Ruqi Zhang

Generic generation and manipulation of text is challenging and has limited success compared to recent deep generative modeling in visual domain. This paper aims at generating plausible natural language sentences, whose attributes are…

Machine Learning · Computer Science 2018-09-14 Zhiting Hu , Zichao Yang , Xiaodan Liang , Ruslan Salakhutdinov , Eric P. Xing

In this paper, we introduce a convenient framework for studying (adversarial) generative models from a statistical perspective. It consists in modeling the generative device as a smooth transformation of the unit hypercube of a dimension…

Statistics Theory · Mathematics 2020-10-20 Nicolas Schreuder , Victor-Emmanuel Brunel , Arnak Dalalyan

The metric complexity (sometimes called Leinster--Cobbold maximum diversity) of a compact metric space is a recently introduced isometry-invariant of compact metric spaces which generalizes the notion of cardinality, and can be thought of…

Metric Geometry · Mathematics 2026-03-24 Gautam Aishwarya , Dongbin Li , Mokshay Madiman , Mark Meckes

Despite growing interest in natural language generation (NLG) models that produce diverse outputs, there is currently no principled method for evaluating the diversity of an NLG system. In this work, we propose a framework for evaluating…

Computation and Language · Computer Science 2021-01-26 Guy Tevet , Jonathan Berant

Human evaluation of generated language through pairwise preference judgments is pervasive. However, under common scenarios, such as when generations from a model pair are very similar, or when stochastic decoding results in large variations…

Computation and Language · Computer Science 2024-10-30 Sayan Ghosh , Tejas Srinivasan , Swabha Swayamdipta

With the advancement of generative models, the assessment of generated images becomes more and more important. Previous methods measure distances between features of reference and generated images from trained vision models. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Jaehui Hwang , Junghyuk Lee , Jong-Seok Lee

Quantifying the distance between datasets is a fundamental question in mathematics and machine learning. We propose \textit{magnitude distance}, a novel distance metric defined on finite datasets using the notion of the \emph{magnitude} of…

Machine Learning · Computer Science 2026-02-10 Sahel Torkamani , Henry Gouk , Rik Sarkar

As major progress is made in open-ended text generation, measuring how close machine-generated text is to human language remains a critical open problem. We introduce MAUVE, a comparison measure for open-ended text generation, which…

Computation and Language · Computer Science 2021-11-24 Krishna Pillutla , Swabha Swayamdipta , Rowan Zellers , John Thickstun , Sean Welleck , Yejin Choi , Zaid Harchaoui

As large language models (LLMs) are increasingly used for ideation and scientific discovery, it is important to evaluate their ability to generate novel output. Prior work evaluates novelty as originality with respect to model training…

Computation and Language · Computer Science 2025-10-08 Vishakh Padmakumar , Chen Yueh-Han , Jane Pan , Valerie Chen , He He