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Yiyi Liu

dblp:13/8402 · DBLP profile ↗
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6ranked-venue papers
6as first author
4since 2021 · last 2025
—ORCID · conflict

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 4 · 4 first-author · 4 since 2021Applied, interdisciplinary, general and emerging computing · 2 · 2 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
3D vision · 100%
Computer graphics and multimedia
1 paper
Geometric modeling and processing · 100%
Interdisciplinary, comprehensive, and emerging computing
1 paper
Bioinformatics and computational biology · 77% Medical and health informatics · 23%

Topics — the 5 heaviest of 5, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computer vision › 3D vision
point cloud
0.912025
CAGE: Continuity-Aware edGE Network Unlocks Robust Floorplan Reconstruction · NeurIPS 2025
Computer vision › 3D vision › 3d scene understanding
point cloud scene understanding
0.912025
CAGE: Continuity-Aware edGE Network Unlocks Robust Floorplan Reconstruction · NeurIPS 2025
Geometric modeling and processing › 3d reconstruction › indoor scene reconstruction
floorplan reconstruction
0.912025
CAGE: Continuity-Aware edGE Network Unlocks Robust Floorplan Reconstruction · NeurIPS 2025
Bioinformatics and computational biology › drug discovery
drug combination prediction
0.212016
Predicting synergistic effects between compounds through their structural similarity and effects on transcriptomes · Bioinform. 2016
Medical and health informatics › oncology
cancer therapy
0.112016
Predicting synergistic effects between compounds through their structural similarity and effects on transcriptomes · Bioinform. 2016

Methods — techniques the papers use, named apart from their topics

transformer decoder · 1.7denoising · 1.7dual-query · 0.9dual query · 0.9transcriptome differential expression analysis · 0.2structural similarity analysis · 0.2
YearPublicationVenuePosition
2025 CAGE: Continuity-Aware edGE Network Unlocks Robust Floorplan Reconstruction
abstract
We present CAGE (Continuity-Aware edGE) network, a robust framework for reconstructing vector floorplans directly from point-cloud density maps. Traditional corner-based polygon representations are highly sensitive to noise and incomplete observations, often resulting in fragmented or implausible layouts. Recent line grouping methods leverage structural cues to improve robustness but still struggle to recover fine geometric details. To address these limitations, we propose a native edge-centric formulation, modeling each wall segment as a directed, geometrically continuous edge. This representation enables inference of coherent floorplan structures, ensuring watertight, topologically valid room boundaries while improving robustness and reducing artifacts. Towards this design, we develop a dual-query transformer decoder that integrates perturbed and latent queries within a denoising framework, which not only stabilizes optimization but also accelerates convergence. Extensive experiments on Structured3D and SceneCAD show that CAGE achieves state-of-the-art performance, with F1 scores of 99.1% (rooms), 91.7% (corners), and 89.3% (angles). The method also demonstrates strong cross-dataset generalization, underscoring the efficacy of our architectural innovations. Code and pretrained models are available on our project page: https://github.com/ee-Liu/CAGE.git.
Yiyi Liu, Weiqin Jiao, Bojian Wu, Lubin Fan, Yuwei Chen 0005, Fashuai Li, Biao Xiong
NeurIPS1
2024 ET-PointPillars: improved PointPillars for 3D object detection based on optimized voxel downsampling
Yiyi Liu, Zhengyi Yang 0003, JianLin Tong, Jiongcheng Peng, Lihang Zhang, Wangxin Cheng
Mach. Vis. Appl.1
2023 Prompt Tuning with Contradictory Intentions for Sarcasm Recognition
abstract
Recently, prompt tuning has achieved promising results in a variety of natural language processing (NLP) tasks.The typical approach is to insert text pieces (i.e., templates) into the input and transform downstream tasks into the same form as pre-training.In essence, a high-quality template is the foundation of prompt tuning to support the performance of the converted clozestyle task.However, for sarcasm recognition, it is time-consuming and requires increasingly sophisticated domain knowledge to determine the appropriate templates and label words due to its highly figurative nature.In this work, we propose SarcPrompt, to incorporate the prior knowledge about contradictory intentions into prompt tuning for sarcasm recognition.Sar-cPrompt is inspired by that the speaker usually says the opposite of what they actually mean in the sarcastic text.Based on this idea, we explicitly mimic the actual intention by prompt construction and indicate whether the actual intention is contradictory to the literal content by verbalizer engineering.Experiments on three public datasets with standard and low-resource settings demonstrate the effectiveness of our SarcPrompt for sarcasm recognition.
Yiyi Liu, Ruqing Zhang 0001, Yixing Fan, Jiafeng Guo, Xueqi Cheng 0001
EACL1
2023 Improved fuzzy evidential DEMATEL method based on two-dimensional correlation coefficient and negation evidence
Yiyi Liu, Zhengyi Yang 0003, Shuning Wang
Soft Comput.1
2016 Predicting synergistic effects between compounds through their structural similarity and effects on transcriptomes
abstract
MOTIVATION: Combinatorial therapies have been under intensive research for cancer treatment. However, due to the large number of possible combinations among candidate compounds, exhaustive screening is prohibitive. Hence, it is important to develop computational tools that can predict compound combination effects, prioritize combinations and limit the search space to facilitate and accelerate the development of combinatorial therapies. RESULTS: In this manuscript we consider the NCI-DREAM Drug Synergy Prediction Challenge dataset to identify features informative about combination effects. Through systematic exploration of differential expression profiles after single compound treatments and comparison of molecular structures of compounds, we found that synergistic levels of combinations are statistically significantly associated with compounds' dissimilarity in structure and similarity in induced gene expression changes. These two types of features offer complementary information in predicting experimentally measured combination effects of compound pairs. Our findings offer insights on the mechanisms underlying different combination effects and may help prioritize promising combinations in the very large search space. AVAILABILITY AND IMPLEMENTATION: The R code for the analysis is available on https://github.com/YiyiLiu1/DrugCombination CONTACT: [email protected] information: Supplementary data are available at Bioinformatics online.
Yiyi Liu, Hongyu Zhao 0003
Bioinform.1
2014 A network-assisted co-clustering algorithm to discover cancer subtypes based on gene expression
abstract
BACKGROUND: Cancer subtype information is critically important for understanding tumor heterogeneity. Existing methods to identify cancer subtypes have primarily focused on utilizing generic clustering algorithms (such as hierarchical clustering) to identify subtypes based on gene expression data. The network-level interaction among genes, which is key to understanding the molecular perturbations in cancer, has been rarely considered during the clustering process. The motivation of our work is to develop a method that effectively incorporates molecular interaction networks into the clustering process to improve cancer subtype identification. RESULTS: We have developed a new clustering algorithm for cancer subtype identification, called "network-assisted co-clustering for the identification of cancer subtypes" (NCIS). NCIS combines gene network information to simultaneously group samples and genes into biologically meaningful clusters. Prior to clustering, we assign weights to genes based on their impact in the network. Then a new weighted co-clustering algorithm based on a semi-nonnegative matrix tri-factorization is applied. We evaluated the effectiveness of NCIS on simulated datasets as well as large-scale Breast Cancer and Glioblastoma Multiforme patient samples from The Cancer Genome Atlas (TCGA) project. NCIS was shown to better separate the patient samples into clinically distinct subtypes and achieve higher accuracy on the simulated datasets to tolerate noise, as compared to consensus hierarchical clustering. CONCLUSIONS: The weighted co-clustering approach in NCIS provides a unique solution to incorporate gene network information into the clustering process. Our tool will be useful to comprehensively identify cancer subtypes that would otherwise be obscured by cancer heterogeneity, using high-throughput and high-dimensional gene expression data.
Yiyi Liu, Quanquan Gu, Jack P. Hou, Jiawei Han 0001, Jian Ma 0004
BMC Bioinform.1