Demo Data from VLDB 2026 / reviewers in the wild / expert
David Chong
dblp:312/2868
· DBLP profile ↗
2ranked-venue papers
0as first author
2since 2021 · last 2026
—ORCID · none
Domains — the database's venue-derived domains; a paper can count in several
Artificial intelligence and machine learning · 2 · 2 since 2021Graphics, computer vision, multimedia, augmented reality and games · 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.
| Artificial intelligence
2 papers |
Language models and text generation · 32% Reinforcement learning · 32% Information extraction and text analysis · 21% | |
| Databases, data mining, and information retrieval
1 paper |
Information retrieval · 100% |
Topics — the 5 heaviest of 6, each with the papers that count most for it
| Topic | Weight | Papers | Last | Evidence papers |
|---|---|---|---|---|
Machine learning › Reinforcement learning › memory architectures
episodic memory |
1.0 | 1 | 2026 | Beyond Fact Retrieval: Episodic Memory for RAG with Generative Semantic Workspaces · AAAI 2026 |
Natural language and speech › Language models and text generation › large language model reasoning
long-context reasoning |
1.0 | 1 | 2026 | Beyond Fact Retrieval: Episodic Memory for RAG with Generative Semantic Workspaces · AAAI 2026 |
Information retrieval
retrieval-augmented generation |
1.0 | 1 | 2026 | Beyond Fact Retrieval: Episodic Memory for RAG with Generative Semantic Workspaces · AAAI 2026 |
Natural language and speech › Information extraction and text analysis
narrative analysis |
0.7 | 1 | 2023 | My side, your side and the evidence: Discovering aligned actor groups and the narratives they weave · ACL (1) 2023 |
Knowledge, reasoning and agents › Knowledge representation and reasoning › temporal reasoning
spatio-temporal reasoning |
0.3 | 1 | 2026 | Beyond Fact Retrieval: Episodic Memory for RAG with Generative Semantic Workspaces · AAAI 2026 |
Methods — techniques the papers use, named apart from their topics
knowledge graph representation · 2.0generative semantic workspace · 2.0large language model · 0.7
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2026 | Beyond Fact Retrieval: Episodic Memory for RAG with Generative Semantic WorkspacesabstractLarge Language Models (LLMs) face fundamental challenges in long-context reasoning: many documents exceed their finite context windows, while performance on texts that do fit degrades with sequence length, necessitating their augmentation with external memory frameworks. Current solutions, which have evolved from retrieval using semantic embeddings to more sophisticated structured knowledge graphs representations for improved sense-making and associativity, are tailored for fact-based retrieval and fail to build the space-time-anchored narrative representations required for tracking entities through episodic events. To bridge this gap, we propose the Generative Semantic Workspace (GSW), a neuro-inspired generative memory framework that builds structured, interpretable representations of evolving situations, enabling LLMs to reason over evolving roles, actions, and spatiotemporal contexts. Our framework comprises an Operator, which maps incoming observations to intermediate semantic structures, and a Reconciler, which integrates these into a persistent workspace that enforces temporal, spatial, and logical coherence. On the Episodic Memory Benchmark (EpBench) comprising corpora ranging from 100k to 1M tokens in length, GSW outperforms existing RAG based baselines by up to 20%. Furthermore, GSW is highly efficient, reducing query-time context tokens by 51% compared to the next most token-efficient baseline, reducing inference time costs considerably. More broadly, GSW offers a concrete blueprint for endowing LLMs with human-like episodic memory, paving the way for more capable agents that can reason over long horizons. Shreyas Rajesh, Pavan Holur, Chenda Duan, David Chong, Vwani P. Roychowdhury |
AAAI | 4 |
| 2023 | My side, your side and the evidence: Discovering aligned actor groups and the narratives they weaveabstractNews reports about emerging issues often include several conflicting story lines.Individual stories can be conceptualized as samples from an underlying mixture of competing narratives.The automated identification of these distinct narratives from unstructured text is a fundamental yet difficult task in Computational Linguistics since narratives are often intertwined and only implicitly conveyed in text.In this paper, we consider a more feasible proxy task: Identify the distinct sets of aligned story actors responsible for sustaining the issue-specific narratives.Discovering aligned actors, and the groups these alignments create, brings us closer to estimating the narrative that each group represents.With the help of Large Language Models (LLM), we address this task by: (i) Introducing a corpus of text segments rich in narrative content associated with six different current issues; (ii) Introducing a novel two-step graph-based framework that (a) identifies alignments between actors (INCANT) and (b) extracts aligned actor groups using the network structure (TAMPA).Amazon Mechanical Turk evaluations demonstrate the effectiveness of our framework.Across domains, alignment relationships from INCANT are accurate (macro F 1 ≥ 0.75) and actor groups from TAMPA are preferred over 2 non-trivial baseline models (ACC ≥ 0.75). Pavan Holur, David Chong, Timothy R. Tangherlini, Vwani P. Roychowdhury |
ACL (1) | 2 |