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Dense neural text retrieval has achieved promising results on open-domain Question Answering (QA), where latent representations of questions and passages are exploited for maximum inner product search in the retrieval process. However,…

Information Retrieval · Computer Science 2021-11-01 Ye Liu , Kazuma Hashimoto , Yingbo Zhou , Semih Yavuz , Caiming Xiong , Philip S. Yu

Efficient password cracking is a critical aspect of digital forensics, enabling investigators to decrypt protected content during criminal investigations. Traditional password cracking methods, including brute-force, dictionary and…

Cryptography and Security · Computer Science 2025-04-07 Mohamad Hachem , Adam Lanfranchi , Nathan Clarke , Joakim Kavrestad

We revisit the problem of rational search: given an unknown rational number $\alpha = \frac{a}{b} \in (0,1)$ with $b \leq n$, the goal is to identify $\alpha$ using comparison queries of the form ``$\beta \leq \alpha$?''. The problem has…

Data Structures and Algorithms · Computer Science 2025-12-23 Connor Weyers , N. V. Vinodchandran

While Large Language Models (LLMs) have achieved remarkable success in a wide range of applications, their performance often degrades in complex reasoning tasks. In this work, we introduce SELT (Self-Evaluation LLM Tree Search), a novel…

Computation and Language · Computer Science 2025-06-10 Mengsong Wu , Di Zhang , Yuqiang Li , Dongzhan Zhou , Wenliang Chen

The approximate string matching is a fundamental and recurrent problem that arises in most computer science fields. This problem can be defined as follows: Let $D=\{x_1,x_2,\ldots x_d\}$ be a set of $d$ words defined on an alphabet…

Data Structures and Algorithms · Computer Science 2017-01-31 Ibrahim Chegrane

We examine the problem of searching sequentially for a desired real value (a key) within a sorted unbalanced three-dimensional finite real array. This classic problem can be viewed as determining the correct dimensional threshold function…

Data Structures and Algorithms · Computer Science 2017-12-08 Márcia R. Cappelle , Les Foulds , Humberto J. Longo

This paper presents a novel approach termed Layer-of-Thoughts Prompting (LoT), which utilizes constraint hierarchies to filter and refine candidate responses to a given query. By integrating these constraints, our method enables a…

Computation and Language · Computer Science 2024-10-17 Wachara Fungwacharakorn , Nguyen Ha Thanh , May Myo Zin , Ken Satoh

Existing retrieval benchmarks primarily consist of information-seeking queries (e.g., aggregated questions from search engines) where keyword or semantic-based retrieval is usually sufficient. However, many complex real-world queries…

Recently, large language models (LLMs) have gained much attention for the emergence of human-comparable capabilities and huge potential. However, for open-domain implicit question-answering problems, LLMs may not be the ultimate solution…

Computation and Language · Computer Science 2026-03-10 Chang Liu , Xiaoguang Li , Lifeng Shang , Xin Jiang , Qun Liu , Edmund Y. Lam , Ngai Wong

Full-text search engines are important tools for information retrieval. Term proximity is an important factor in relevance score measurement. In a proximity full-text search, we assume that a relevant document contains query terms near each…

Information Retrieval · Computer Science 2018-11-20 Alexander B. Veretennikov

Scientists always look for the most accurate and relevant answer to their queries on the scholarly literature. Traditional scholarly search systems list documents instead of providing direct answers to the search queries. As data in…

Digital Libraries · Computer Science 2021-07-14 Golsa Heidari , Ahmad Ramadan , Markus Stocker , Sören Auer

We revisit the fundamental problem of dictionary look-up with mismatches. Given a set (dictionary) of $d$ strings of length $m$ and an integer $k$, we must preprocess it into a data structure to answer the following queries: Given a query…

Data Structures and Algorithms · Computer Science 2018-06-27 Paweł Gawrychowski , Gad M. Landau , Tatiana Starikovskaya

Consider the commonly known puzzle, given $k$ glass balls, find an optimal algorithm to determine the lowest floor of a building of $n$ floors from which a thrown glass ball will break. This puzzle was originally posed in its original form…

Data Structures and Algorithms · Computer Science 2007-05-23 Gopal Ananthraman

The problem of storing a set of strings --- a string dictionary --- in compact form appears naturally in many cases. While classically it has represented a small part of the whole data to be processed (e.g., for Natural Language processing…

Data Structures and Algorithms · Computer Science 2011-01-31 Nieves R. Brisaboa , Rodrigo Cánovas , Miguel A. Martínez-Prieto , Gonzalo Navarro

When people search for information about a new topic within large document collections, they implicitly construct a mental model of the unfamiliar information space to represent what they currently know and guide their exploration into the…

Information Retrieval · Computer Science 2023-02-21 Mengtian Guo , Zhilan Zhou , David Gotz , Yue Wang

This paper explores the task of interactive image retrieval using natural language queries, where a user progressively provides input queries to refine a set of retrieval results. Moreover, our work explores this problem in the context of…

Computer Vision and Pattern Recognition · Computer Science 2019-11-12 Fuwen Tan , Paola Cascante-Bonilla , Xiaoxiao Guo , Hui Wu , Song Feng , Vicente Ordonez

While Multi-modal Large Language Models (MLLMs) have shown impressive capabilities in document understanding tasks, their ability to locate and reason about fine-grained details within complex documents remains understudied. Consider…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Parth Thakkar , Ankush Agarwal , Prasad Kasu , Pulkit Bansal , Chaitanya Devaguptapu

We examine the fractal structure of the physical universe from the large scale to the smallest scale, including the phenomenon of fractal scaling. This is explained in terms of a stochastic underpinning for the laws of physics. A picture in…

General Physics · Physics 2007-05-23 B. G. Sidharth

Many static benchmarks are beginning to saturate: as models rapidly improve, they achieve near-perfect scores on fixed test sets, leaving little headroom to expose genuine model weaknesses -- and even expert-curated challenge sets quickly…

Computation and Language · Computer Science 2026-05-27 Wenda Xu , Vilém Zouhar , Parker Riley , Mara Finkelstein , Markus Freitag , Daniel Deutsch

Word Break is a prototypical factorization problem in string processing: Given a word $w$ of length $N$ and a dictionary $\mathcal{D} = \{d_1, d_2, \ldots, d_{K}\}$ of $K$ strings, determine whether we can partition $w$ into words from…

Data Structures and Algorithms · Computer Science 2025-06-19 Rajat De , Dominik Kempa