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We propose a novel approach for the development, analysis, and verification of reductions between NP-complete problems. This method uses the URSA system, a SAT-based constraint solver and incorporates features that distinguish it from…

Logic in Computer Science · Computer Science 2025-11-25 Predrag Janičić

This note considers checking satisfiability of sets of propositional clauses (SAT instances). It shows that "unipolar sets" of clauses (containing no positive or no negative clauses) provide an "early sign" of satisfiability of SAT…

Logic in Computer Science · Computer Science 2016-12-16 Eliezer L. Lozinskii

We propose STRuCT-LLM, a unified framework for training large language models (LLMs) to perform structured reasoning over both relational and graph-structured data. Our approach jointly optimizes Text-to-SQL and Text-to-Cypher tasks using…

Computation and Language · Computer Science 2025-06-30 Josefa Lia Stoisser , Marc Boubnovski Martell , Lawrence Phillips , Casper Hansen , Julien Fauqueur

Nested counter systems (NCS) are a generalization of counter systems to higher-order counters. Here, a higher-order counter is allowed to have other (lower-order) counters as elements, instead of just a number. Such systems can be viewed as…

Formal Languages and Automata Theory · Computer Science 2026-05-15 A. R. Balasubramanian , Franzisco Schmidt

We study supervised learning problems using clustering constraints to impose structure on either features or samples, seeking to help both prediction and interpretation. The problem of clustering features arises naturally in text…

Machine Learning · Computer Science 2016-09-20 Vincent Roulet , Fajwel Fogel , Alexandre d'Aspremont , Francis Bach

Recurrent neural networks have shown remarkable success in modeling sequences. However low resource situations still adversely affect the generalizability of these models. We introduce a new family of models, called Lattice Recurrent Units…

Machine Learning · Computer Science 2017-11-23 Chaitanya Ahuja , Louis-Philippe Morency

Resolution refinements called w-resolution trees with lemmas (WRTL) and with input lemmas (WRTI) are introduced. Dag-like resolution is equivalent to both WRTL and WRTI when there is no regularity condition. For regular proofs, an…

Logic in Computer Science · Computer Science 2015-07-01 Samuel R. Buss , Jan Hoffmann , Jan Johannsen

In recent years, a large class of nuclear $C^\ast$-algebras have been classified, modulo an assumption on the Universal Coefficient Theorem (UCT). We think this assumption is redundant and propose a strategy for proving it. Indeed,…

Operator Algebras · Mathematics 2021-11-17 Nathanial P. Brown , Sarah L. Browne , Rufus Willett , Jianchao Wu

Since its inception, the field of unbiased learning to rank (ULTR) has remained very active and has seen several impactful advancements in recent years. This tutorial provides both an introduction to the core concepts of the field and an…

Information Retrieval · Computer Science 2023-05-05 Shashank Gupta , Philipp Hager , Jin Huang , Ali Vardasbi , Harrie Oosterhuis

Answering complex queries over incomplete knowledge graphs (KGs) is a challenging job. Most previous works have focused on learning entity/relation embeddings and simulating first-order logic operators with various neural networks. However,…

Computation and Language · Computer Science 2025-03-04 Tianle Xia , Liang Ding , Guojia Wan , Yibing Zhan , Bo Du , Dacheng Tao

Prior work has commonly defined argument retrieval from heterogeneous document collections as a sentence-level classification task. Consequently, argument retrieval suffers both from low recall and from sentence segmentation errors making…

Computation and Language · Computer Science 2019-11-22 Dietrich Trautmann , Johannes Daxenberger , Christian Stab , Hinrich Schütze , Iryna Gurevych

Traditional sequential recommendation (SR) methods heavily rely on explicit item IDs to capture user preferences over time. This reliance introduces critical limitations in cold-start scenarios and domain transfer tasks, where unseen items…

Information Retrieval · Computer Science 2025-02-20 Wuhan Chen , Zongwei Wang , Min Gao , Xin Xia , Feng Jiang , Junhao Wen

Elucidating the reasoning process with structured explanations from question to answer is crucial, as it significantly enhances the interpretability, traceability, and trustworthiness of question-answering (QA) systems. However, structured…

Computation and Language · Computer Science 2024-09-30 Guoxin Chen , Kexin Tang , Chao Yang , Fuying Ye , Yu Qiao , Yiming Qian

Deployed language models must decide not only what to answer but also when not to answer. We present UniCR, a unified framework that turns heterogeneous uncertainty evidence including sequence likelihoods, self-consistency dispersion,…

Computation and Language · Computer Science 2025-12-30 Markus Oehri , Giulia Conti , Kaviraj Pather , Alexandre Rossi , Laia Serra , Adrian Parody , Rogvi Johannesen , Aviaja Petersen , Arben Krasniqi

Machine unlearning aims to remove the influence of specific data from trained language models. In real-world deployments, unlearning requests often arrive sequentially, which challenges existing fine-tuning-based methods: fine-tuning each…

Artificial Intelligence · Computer Science 2026-05-27 Ruihao Pan , Suhang Wang

Recent advances in autonomous robotic technologies have highlighted the growing need for precise environmental analysis. LiDAR semantic segmentation has gained attention to accomplish fine-grained scene understanding by acting directly on…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Elena Camuffo , Umberto Michieli , Simone Milani

Lifelong learning remains an open problem. One of its main difficulties is catastrophic forgetting. Many dynamic expansion approaches have been proposed to address this problem, but they all use homogeneous models of predefined structure…

Machine Learning · Computer Science 2020-03-20 Wenjin Wang , Yunqing Hu , Yin Zhang

Recent advancement of large-scale pretrained models such as BERT, GPT-3, CLIP, and Gopher, has shown astonishing achievements across various task domains. Unlike vision recognition and language models, studies on general-purpose user…

Information Retrieval · Computer Science 2022-11-23 Kyuyong Shin , Hanock Kwak , Su Young Kim , Max Nihlen Ramstrom , Jisu Jeong , Jung-Woo Ha , Kyung-Min Kim

Enabling large language models (LLMs) to unlearn knowledge and capabilities acquired during training has proven vital for ensuring compliance with data regulations and promoting ethical practices in generative AI. Although there are growing…

Linguistic Acceptability is the task of determining whether a sentence is grammatical or ungrammatical. It has applications in several use cases like Question-Answering, Natural Language Generation, Neural Machine Translation, where…

Computation and Language · Computer Science 2022-03-09 Anmol Nayak , Hari Prasad Timmapathini