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A Concept Tree is a structure for storing knowledge where the trees are stored in a database called a Concept Base. It sits between the highly distributed neural architectures and the distributed information systems, with the intention of…

Artificial Intelligence · Computer Science 2020-04-07 Kieran Greer

Many state-of-art neural models designed for monotonicity reasoning perform poorly on downward inference. To address this shortcoming, we developed an attentive tree-structured neural network. It consists of a tree-based…

Computation and Language · Computer Science 2021-01-05 Zeming Chen

Long-term conversational agents need memory systems that capture relationships between events, not merely isolated facts, to support temporal reasoning and multi-hop question answering. Current approaches face a fundamental trade-off: flat…

Computation and Language · Computer Science 2026-04-24 Buqiang Xu , Yijun Chen , Jizhan Fang , Ruobin Zhong , Yunzhi Yao , Yuqi Zhu , Lun Du , Shumin Deng

Long-term memory enables large language model agents to tackle complex tasks through historical interactions. However, existing frameworks encounter a fundamental dilemma between compressing redundant information efficiently and maintaining…

Artificial Intelligence · Computer Science 2026-02-10 Zhenyuan Zhang , Xianzhang Jia , Zhiqin Yang , Zhenbo Song , Wei Xue , Sirui Han , Yike Guo

Tree-based data structures are ubiquitous across applications. Therefore, a multitude of different tree implementations exist. However, while these implementations are diverse, they share a tree structure as the underlying data structure.…

Hardware Architecture · Computer Science 2025-01-30 Daniel Biebert , Christian Hakert , Jian-Jia Chen

Recent advances in Large Language Models (LLMs) have shown promise in automating discourse annotation for conversations. While manually designing tree annotation schemes significantly improves annotation quality for humans and models, their…

Computation and Language · Computer Science 2025-06-04 Kseniia Petukhova , Ekaterina Kochmar

Long-horizon conversational agents have to manage ever-growing interaction histories that quickly exceed the finite context windows of large language models (LLMs). Existing memory frameworks provide limited support for temporally…

Computation and Language · Computer Science 2026-05-01 Kai Li , Xuanqing Yu , Ziyi Ni , Yi Zeng , Yao Xu , Zheqing Zhang , Xin Li , Jitao Sang , Xiaogang Duan , Xuelei Wang , Chengbao Liu , Jie Tan

The majority of existing human parsing methods formulate the task as semantic segmentation, which regard each semantic category equally and fail to exploit the intrinsic physiological structure of human body, resulting in inaccurate…

Computer Vision and Pattern Recognition · Computer Science 2019-12-23 Ruyi Ji , Dawei Du , Libo Zhang , Longyin Wen , Yanjun Wu , Chen Zhao , Feiyue Huang , Siwei Lyu

Large language model (LLM) personalization aims to align model outputs with individuals' unique preferences and opinions. While recent efforts have implemented various personalization methods, a unified theoretical framework that can…

Computation and Language · Computer Science 2025-09-30 Xinliang Frederick Zhang , Nick Beauchamp , Lu Wang

Recent end-to-end task oriented dialog systems use memory architectures to incorporate external knowledge in their dialogs. Current work makes simplifying assumptions about the structure of the knowledge base, such as the use of triples to…

Computation and Language · Computer Science 2020-09-30 Revanth Reddy , Danish Contractor , Dinesh Raghu , Sachindra Joshi

Embedding learning transforms discrete data entities into continuous numerical representations, encoding features/properties of the entities. Despite the outstanding performance reported from different embedding learning algorithms, few…

Machine Learning · Computer Science 2023-08-04 Yan Zheng , Junpeng Wang , Chin-Chia Michael Yeh , Yujie Fan , Huiyuan Chen , Liang Wang , Wei Zhang

AI Memory, specifically how models organizes and retrieves historical messages, becomes increasingly valuable to Large Language Models (LLMs), yet existing methods (RAG and Graph-RAG) primarily retrieve memory through similarity-based…

Computation and Language · Computer Science 2026-04-13 Zihao Tang , Xin Yu , Ziyu Xiao , Zengxuan Wen , Zelin Li , Jiaxi Zhou , Hualei Wang , Haohua Wang , Haizhen Huang , Weiwei Deng , Feng Sun , Qi Zhang

Large Language Models (LLMs) have become an essential infrastructure for Artificial General Intelligence (AGI), yet their lack of well-defined memory management systems hinders the development of long-context reasoning, continual…

Large language model (LLM) agents demonstrate strong performance in short-text contexts but often underperform in extended dialogues due to inefficient memory management. Existing approaches face a fundamental trade-off between efficiency…

Artificial Intelligence · Computer Science 2026-05-04 Xiaochen Zhao , Kaikai Wang , Xiaowen Zhang , Chen Yao , Aili Wang

Deep Language Models (DLMs) provide a novel computational paradigm for understanding the mechanisms of natural language processing in the human brain. Unlike traditional psycholinguistic models, DLMs use layered sequences of continuous…

We propose to compose dynamic tree structures that place the objects in an image into a visual context, helping visual reasoning tasks such as scene graph generation and visual Q&A. Our visual context tree model, dubbed VCTree, has two key…

Computer Vision and Pattern Recognition · Computer Science 2018-12-06 Kaihua Tang , Hanwang Zhang , Baoyuan Wu , Wenhan Luo , Wei Liu

Language exhibits structure at different scales, ranging from subwords to words, sentences, paragraphs, and documents. To what extent do deep models capture information at these scales, and can we force them to better capture structure…

Computation and Language · Computer Science 2020-11-11 Alex Tamkin , Dan Jurafsky , Noah Goodman

Long Short-Term Memory (LSTM) networks, a type of recurrent neural network with a more complex computational unit, have been successfully applied to a variety of sequence modeling tasks. In this paper we develop Tree Long Short-Term Memory…

Computation and Language · Computer Science 2016-04-05 Xingxing Zhang , Liang Lu , Mirella Lapata

Multimodal Large Language Models (MLLMs) have shown transformative potential in medical applications, yet their performance is hindered by conventional data curation strategies that rely on coarse-grained partitioning by modality or…

Computation and Language · Computer Science 2026-04-29 Jianghang Lin , Haihua Yang , Deli Yu , Kai Wu , Kai Ye , Jinghao Lin , Zihan Wang , Yuhang Wu , Liujuan Cao

Multimodal Large Language Models (MLLMs) have achieved remarkable performance by aligning pretrained visual representations with the linguistic knowledge embedded in Large Language Models (LLMs). However, existing approaches typically rely…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Ying Liu , Yudong Han , Kean Shi , Liyuan Pan