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Recently, Network Embedding (NE) has become one of the most attractive research topics in machine learning and data mining. NE approaches have achieved promising performance in various of graph mining tasks including link prediction and…

社会与信息网络 · 计算机科学 2021-07-20 Pengfei Jiao , Xuan Guo , Ting Pan , Wang Zhang , Yulong Pei

Brain networks, graphical models such as those constructed from MRI, have been widely used in pathological prediction and analysis of brain functions. Within the complex brain system, differences in neuronal connection strengths parcellate…

机器学习 · 计算机科学 2023-05-09 Wei Dai , Hejie Cui , Xuan Kan , Ying Guo , Sanne van Rooij , Carl Yang

Large Language Models (LLMs) have made significant strides in natural language processing, and a precise understanding of the internal mechanisms driving their success is essential. In this work, we analyze the trajectories of token…

机器学习 · 计算机科学 2025-03-06 Murdock Aubry , Haoming Meng , Anton Sugolov , Vardan Papyan

Large language models (LLMs) produce high-dimensional embeddings that capture rich semantic and syntactic relationships between words, sentences, and concepts. Investigating the topological structures of LLM embedding spaces via mapper…

计算几何 · 计算机科学 2025-07-25 Xinyuan Yan , Rita Sevastjanova , Sinie van der Ben , Mennatallah El-Assady , Bei Wang

Symmetry is a fundamental tool in the exploration of a broad range of complex systems. In machine learning symmetry has been explored in both models and data. In this paper we seek to connect the symmetries arising from the architecture of…

机器学习 · 计算机科学 2023-03-27 Charles Godfrey , Davis Brown , Tegan Emerson , Henry Kvinge

Vision-language model (VLM) encoders such as CLIP enable strong retrieval and zero-shot classification in a shared image-text embedding space, yet the semantic organization of this space is rarely inspected. We present a post-hoc framework…

People acquire concepts through rich physical and social experiences and use them to understand and navigate the world. In contrast, large language models (LLMs), trained solely through next-token prediction on text, exhibit strikingly…

计算与语言 · 计算机科学 2025-11-11 Ningyu Xu , Qi Zhang , Chao Du , Qiang Luo , Xipeng Qiu , Xuanjing Huang , Menghan Zhang

Traditional neural embeddings represent concepts as points, excelling at similarity but struggling with higher-level reasoning and asymmetric relationships. We introduce a novel paradigm: embedding concepts as linear subspaces. This…

机器学习 · 计算机科学 2025-08-26 Gabriel Moreira , Zita Marinho , Manuel Marques , João Paulo Costeira , Chenyan Xiong

Embedding based Knowledge Graph (KG) Completion has gained much attention over the past few years. Most of the current algorithms consider a KG as a multidirectional labeled graph and lack the ability to capture the semantics underlying the…

人工智能 · 计算机科学 2024-07-12 Mehwish Alam , Frank van Harmelen , Maribel Acosta

Vision Large Language Models (VLLMs) usually take input as a concatenation of image token embeddings and text token embeddings and conduct causal modeling. However, their internal behaviors remain underexplored, raising the question of…

计算与语言 · 计算机科学 2025-05-16 Houjing Wei , Yuting Shi , Naoya Inoue

Large language models (LLMs) have become an important semantic infrastructure for modern recommender systems. A prevailing paradigm integrates LLM-derived semantic embeddings with collaborative representations via representation alignment,…

信息检索 · 计算机科学 2026-04-27 Maolin Wang , Dongze Wu , Jianing Zhou , Hongyu Chen , Beining Bao , Yu Jiang , Chenbin Zhang , Chang Wang , Jian Liu , Lei Sha

Recent advances in machine learning, particularly Large Language Models (LLMs) such as BERT and GPT, provide rich contextual embeddings that improve text representation. However, current document clustering approaches often ignore the…

计算与语言 · 计算机科学 2024-12-20 Imed Keraghel , Mohamed Nadif

Recent developments in Large Language Models (LLMs) have significantly expanded their applications across various domains. However, the effectiveness of LLMs is often constrained when operating individually in complex environments. This…

人工智能 · 计算机科学 2024-05-08 Silvan Ferreira , Ivanovitch Silva , Allan Martins

Entity alignment, which is a prerequisite for creating a more comprehensive Knowledge Graph (KG), involves pinpointing equivalent entities across disparate KGs. Contemporary methods for entity alignment have predominantly utilized knowledge…

计算与语言 · 计算机科学 2024-01-31 Linyao Yang , Hongyang Chen , Xiao Wang , Jing Yang , Fei-Yue Wang , Han Liu

Low dimensional embeddings that capture the main variations of interest in collections of data are important for many applications. One way to construct these embeddings is to acquire estimates of similarity from the crowd. However,…

机器学习 · 计算机科学 2018-03-30 Kun Ho Kim , Oisin Mac Aodha , Pietro Perona

Word embeddings are the interface between the world of discrete units of text processing and the continuous, differentiable world of neural networks. In this work, we examine various random and pretrained initialization methods for…

计算与语言 · 计算机科学 2017-11-28 Tom Kocmi , Ondřej Bojar

While many methods for learning vector space embeddings have been proposed in the field of Natural Language Processing, these methods typically do not distinguish between categories and individuals. Intuitively, if individuals are…

计算与语言 · 计算机科学 2019-12-04 Zied Bouraoui , Jose Camacho-Collados , Luis Espinosa-Anke , Steven Schockaert

The recent prevalence of pretrained language models (PLMs) has dramatically shifted the paradigm of semantic parsing, where the mapping from natural language utterances to structured logical forms is now formulated as a Seq2Seq task.…

计算与语言 · 计算机科学 2022-12-06 Lunyiu Nie , Jiuding Sun , Yanlin Wang , Lun Du , Lei Hou , Juanzi Li , Shi Han , Dongmei Zhang , Jidong Zhai

Large Language Models (LLMs) have shown strong capabilities in solving problems across domains, including graph-related tasks traditionally addressed by symbolic or algorithmic methods. In this work, we present a framework for structured…

人工智能 · 计算机科学 2025-09-03 Govind Waghmare , Sumedh BG , Sonia Gupta , Srikanta Bedathur

In recent years, pre-trained Transformers have dominated the majority of NLP benchmark tasks. Many variants of pre-trained Transformers have kept breaking out, and most focus on designing different pre-training objectives or variants of…

计算与语言 · 计算机科学 2020-10-13 Yu-An Wang , Yun-Nung Chen