Demo Data from VLDB 2026 / reviewers in the wild / expert
Alex Lee
dblp:20/3520
· DBLP profile ↗
7ranked-venue papers
2as first author
2since 2021 · last 2024
—ORCID · unresolved
Domains — the database's venue-derived domains; a paper can count in several
Graphics, computer vision, multimedia, augmented reality and games · 3 · 2 first-authorArtificial intelligence and machine learning · 2 · 1 since 2021Applied, interdisciplinary, general and emerging computing · 2Systems, architecture and hardware · 1 · 1 since 2021Software engineering, systems software and programming languages · 1 · 1 since 2021
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.
| Computer graphics and multimedia
2 papers |
Multimedia analysis and retrieval · 67% Image and video processing · 33% | |
| Computer architecture, parallel and distributed computing, and storage systems
1 paper |
Memory systems · 100% | |
| Databases, data mining, and information retrieval
1 paper |
Data mining · 100% | |
| Software engineering, system software, and programming languages
1 paper |
Program verification · 100% |
Topics — the 9 heaviest of 9, each with the papers that count most for it
| Topic | Weight | Papers | Last | Evidence papers |
|---|---|---|---|---|
Multimedia analysis and retrieval › video content analysis
scene segmentation |
0.8 | 2 | 2020 | Scene-segmented Video Information Annotation System V2.0 · ACM Multimedia 2020 SVIAS: Scene-segmented Video Information Annotation System · ACM Multimedia 2018 |
Multimedia analysis and retrieval
video annotation |
0.8 | 2 | 2020 | Scene-segmented Video Information Annotation System V2.0 · ACM Multimedia 2020 SVIAS: Scene-segmented Video Information Annotation System · ACM Multimedia 2018 |
Image and video processing
video segmentation |
0.8 | 2 | 2020 | Scene-segmented Video Information Annotation System V2.0 · ACM Multimedia 2020 SVIAS: Scene-segmented Video Information Annotation System · ACM Multimedia 2018 |
Program verification › neural network verification
robustness verification |
0.6 | 1 | 2022 | Checking robustness to weak persistency models · PLDI 2022 |
Memory systems
non-volatile memory |
0.6 | 1 | 2022 | Checking robustness to weak persistency models · PLDI 2022 |
Memory systems › non-volatile memory
persistent memory |
0.6 | 1 | 2022 | Checking robustness to weak persistency models · PLDI 2022 |
Data mining
clustering |
0.3 | 1 | 2017 | Spectral Clustering with Brainstorming Process for Multi-View Data · AAAI 2017 |
Data mining › clustering
multi-view clustering |
0.3 | 1 | 2017 | Spectral Clustering with Brainstorming Process for Multi-View Data · AAAI 2017 |
Data mining › clustering
spectral clustering |
0.3 | 1 | 2017 | Spectral Clustering with Brainstorming Process for Multi-View Data · AAAI 2017 |
Methods — techniques the papers use, named apart from their topics
multiview deep convolutional neural network · 0.8testing tools · 0.6testing tool · 0.6supervised movie caption model · 0.4unsupervised sentence embedding · 0.3spectral clustering · 0.3brainstorming-inspired optimization · 0.3
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2024 | LGMCTS: Language-Guided Monte-Carlo Tree Search for Executable Semantic Object RearrangementabstractWe present LGMCTS, a framework that uniquely combines language guidance with geometrically informed sampling distributions to effectively rearrange objects according to geometric patterns dictated by natural language descriptions. LGMCTS uses Monte Carlo Tree Search (MCTS) to create feasible action plans that ensure executable semantic object rearrangement. We present a comprehensive comparison with leading approaches that use language to generate goal rearrangements independently of actionable planning, including Structformer, StructDiffusion, and Code as policies. We also present a new benchmark, the Executable Language Guided Rearrangement (ELGR) Bench, containing tasks involving intricate geometry. With the ELGR bench, we show limitations of task and motion planning (TAMP) solutions that are purely based on Large Language Models (LLM) such as Code as Policies and Progprompt on such tasks. Our findings advocate for using LLMs to generate intermediary representations rather than direct action planning in geometrically complex rearrangement scenarios, aligning with perspectives from recent literature. Our code and supplementary materials are accessible at https://lgmcts.github.io/. Haonan Chang, Kowndinya Boyalakunta, Alex Lee, Baichuan Huang, Jingjin Yu, Abdeslam Boularias |
IROS | 4 |
| 2022 | Checking robustness to weak persistency modelsabstractPersistent memory (PM) technologies offer performance close to DRAM with persistence. Persistent memory enables programs to directly modify persistent data through normal load and store instructions bypassing heavyweight OS system calls for persistency. However, these stores are not made immediately made persistent, the developer must manually flush the corresponding cache lines to force the data to be written to persistent memory. While state-of-the-art testing tools can help developers find and fix persistency bugs, prior studies have shown fixing persistency bugs on average takes a couple of weeks for PM developers. The developer has to manually inspect the execution to identify the root cause of the problem. In addition, most of the existing state-of-the-art testing tools require heavy user annotations to detect bugs without visible symptoms such as a segmentation fault. Hamed Gorjiara, Weiyu Luo, Alex Lee, Guoqing Harry Xu, Brian Demsky |
PLDI | 3 |
| 2020 | Scene-segmented Video Information Annotation System V2.0abstractWe have built the scene-segmented video information annotation system and upgraded it to version 2.0. The system imports the video by user selection and splits into the scene units. Each scene clips are annotated by the integration of visual features derived by state-of-the-art deep learning techniques. The proposed system uses the multiview deep convolutional neural network for video segmentation and a supervised movie caption model for video annotation. Each functionality has been installed in two different sub-systems and connected through the web interface. The web interface allows connecting to external content providers in order to expand the capability of the system. Alex Lee, Chang-Uk Kwak, Jeong Woo Son, Gyeong-June Hahm, Minho Han, Sun-Joong Kim |
ACM Multimedia | 1 |
| 2020 | Hydra: A mixture modeling framework for subtyping pediatric cancer cohorts using multimodal gene expression signaturesabstractPrecision oncology has primarily relied on coding mutations as biomarkers of response to therapies. While transcriptome analysis can provide valuable information, incorporation into workflows has been difficult. For example, the relative rather than absolute gene expression level needs to be considered, requiring differential expression analysis across samples. However, expression programs related to the cell-of-origin and tumor microenvironment effects confound the search for cancer-specific expression changes. To address these challenges, we developed an unsupervised clustering approach for discovering differential pathway expression within cancer cohorts using gene expression measurements. The hydra approach uses a Dirichlet process mixture model to automatically detect multimodally distributed genes and expression signatures without the need for matched normal tissue. We demonstrate that the hydra approach is more sensitive than widely-used gene set enrichment approaches for detecting multimodal expression signatures. Application of the hydra analysis framework to small blue round cell tumors (including rhabdomyosarcoma, synovial sarcoma, neuroblastoma, Ewing sarcoma, and osteosarcoma) identified expression signatures associated with changes in the tumor microenvironment. The hydra approach also identified an association between ATRX deletions and elevated immune marker expression in high-risk neuroblastoma. Notably, hydra analysis of all small blue round cell tumors revealed similar subtypes, characterized by changes to infiltrating immune and stromal expression signatures. Jacob Pfeil, Lauren M. Sanders, Ioannis N. Anastopoulos, A. Geoffrey Lyle, Alana S. Weinstein, Yuanqing Xue, Andrew Blair, Holly C. Beale, Alex Lee, Stanley G. Leung, Phuong T. Dinh, Avanthi Tayi Shah, Marcus R. Breese, W. Patrick Devine, Isabel Bjork, Sofie R. Salama, E. Alejandro Sweet-Cordero, David Haussler, Olena Morozova Vaske |
PLoS Comput. Biol. | 9 |
| 2018 | SVIAS: Scene-segmented Video Information Annotation SystemabstractWe had designed the scene-segmented video information annotation system using video segmentation and information annotation. For video segmentation, the proposed system adapts the multiview deep convolution neural network. Segmented scenes are annotated by using the unsupervised sentence embedding model for closed captions. Both functionalities effectively work together with the web interface designed to tie not only our functionalities but also external content providers. Alex Lee, Chang-Uk Kwak, Jeong Woo Son, Sun-Joong Kim |
ACM Multimedia | 1 |
| 2017 | Spectral Clustering with Brainstorming Process for Multi-View DataabstractClustering tasks often requires multiple views rather than a singleview to correctly reflect diverse characteristics of the cluster boundaries. The cluster boundaries estimated using a single view are incorrect in general, and those incorrect estimation should be compensated by helps of other views. If each viewis independent to other views, incorrect estimations will be mostly revised as the number of views grow. However, as the number of views grow, it is almost impossibleto avoid dependencies among views, and such dependencies often delude correct estimations. Thus, dependencies among views should be carefully considered in multi-view clustering. This paper proposes a new spectral clustering method to deal with multi-view data and dependencies among views. The proposed method is motivated by the brainstorming process. In the brainstorming process, an instance is regarded as an agenda to be discussed, while each view is considered as a brainstormer. Through the discussion step in the brainstorming process, a brainstormer iteratively suggests their opinions and accepts others’ different opinions. To compensate the biases caused by information sharing between brainstormers with dependent opinions, those having independent opinions are more encouraged to discuss together than those with dependent opinions. The conclusion step makes a compromise by merging or concatenating all opinions. The clustering is finally done after the conclusion. Experimental results in three tasks show the effectiveness of the proposed method comparing with ordinary single and multi-view spectral clusterings. Jeong Woo Son, Junkey Jeon, Alex Lee, Sun-Joong Kim |
AAAI | 3 |
| 2002 | Estimation of land cover and biomass change from remotely sensed dataabstractReports on progress in estimating land cover change, using aerial photography and satellite imagery and biomass change, based on field data, lidar and satellite imagery, in the Fitzroy catchment, Australia. Lucy Randall, Alex Lee, Jenet Austin, Michele Barson |
IGARSS | 2 |