trident
TRIDENT: A Trimodal Cascade Generative Framework for Drug and RNA-Conditioned Cellular Morphology Synthesis
Peng, Rui, Liu, Ziru, Ye, Lingyuan, Lu, Yuxing, Shi, Boxin, Wang, Jinzhuo
Accurately modeling the relationship between perturbations, transcriptional responses, and phenotypic changes is essential for building an AI Virtual Cell (AIVC). However, existing methods typically constrained to modeling direct associations, such as Perturbation $\rightarrow$ RNA or Perturbation $\rightarrow$ Morphology, overlook the crucial causal link from RNA to morphology. To bridge this gap, we propose TRIDENT, a cascade generative framework that synthesizes realistic cellular morphology by conditioning on both the perturbation and the corresponding gene expression profile. To train and evaluate this task, we construct MorphoGene, a new dataset pairing L1000 gene expression with Cell Painting images for 98 compounds. TRIDENT significantly outperforms state-of-the-art approaches, achieving up to 7-fold improvement with strong generalization to unseen compounds. In a case study on docetaxel, we validate that RNA-guided synthesis accurately produces the corresponding phenotype. An ablation study further confirms that this RNA conditioning is essential for the model's high fidelity. By explicitly modeling transcriptome-phenome mapping, TRIDENT provides a powerful in silico tool and moves us closer to a predictive virtual cell.
- Health & Medicine > Pharmaceuticals & Biotechnology (1.00)
- Health & Medicine > Therapeutic Area > Oncology (0.68)
Artificial Intelligence for Optimal Learning: A Comparative Approach towards AI-Enhanced Learning Environments
In the rapidly evolving educational landscape, the integration of technology has shifted from an enhancement to a cornerstone of educational strategy worldwide. This transition is propelled by advancements in digital technology, especially the emergence of artificial intelligence as a crucial tool in learning environments. This research project critically evaluates the impact of three distinct educational settings: traditional educational methods without technological integration, those enhanced by non-AI technology, and those utilising AI-driven technologies. This comparison aims to assess how each environment influences educational outcomes, engagement, pedagogical methods, and equity in access to learning resources, and how each contributes uniquely to the learning experience. The ultimate goal of this research is to synthesise the strengths of each model to create a more holistic educational approach. By integrating the personal interaction and tested pedagogical techniques of traditional classrooms, the enhanced accessibility and collaborative tools offered by non-AI technology, and the personalised, adaptive learning strategies enabled by AI-driven technologies, education systems can develop richer, more effective learning environments. This hybrid approach aims to leverage the best elements of each setting, thereby enhancing educational outcomes, engagement, and inclusiveness, while also addressing the distinct challenges and limitations inherent in each model. The intention is to create an educational framework deeply attentive to the diverse needs of students, ensuring equitable access to high-quality education for all.
- Asia > China (0.14)
- North America > United States > Illinois > Champaign County > Urbana (0.04)
- Research Report (1.00)
- Instructional Material (1.00)
- Information Technology > Security & Privacy (1.00)
- Education > Educational Setting > Online (0.93)
- Education > Educational Technology > Educational Software > Computer Based Training (0.47)
TRIDENT: Tri-Modal Molecular Representation Learning with Taxonomic Annotations and Local Correspondence
Jiang, Feng, Prakash, Mangal, Ma, Hehuan, Deng, Jianyuan, Guo, Yuzhi, Mollaysa, Amina, Mansi, Tommaso, Liao, Rui, Huang, Junzhou
Molecular property prediction aims to learn representations that map chemical structures to functional properties. While multimodal learning has emerged as a powerful paradigm to learn molecular representations, prior works have largely overlooked textual and taxonomic information of molecules for representation learning. We introduce TRIDENT, a novel framework that integrates molecular SMILES, textual descriptions, and taxonomic functional annotations to learn rich molecular representations. To achieve this, we curate a comprehensive dataset of molecule-text pairs with structured, multi-level functional annotations. Instead of relying on conventional contrastive loss, TRIDENT employs a volume-based alignment objective to jointly align tri-modal features at the global level, enabling soft, geometry-aware alignment across modalities. Additionally, TRIDENT introduces a novel local alignment objective that captures detailed relationships between molecular substructures and their corresponding sub-textual descriptions. A momentum-based mechanism dynamically balances global and local alignment, enabling the model to learn both broad functional semantics and fine-grained structure-function mappings. TRIDENT achieves state-of-the-art performance on 11 downstream tasks, demonstrating the value of combining SMILES, textual, and taxonomic functional annotations for molecular property prediction.
- North America > United States > Texas > Tarrant County > Arlington (0.04)
- North America > United States > New Jersey > Middlesex County > New Brunswick (0.04)
- Information Technology > Artificial Intelligence > Representation & Reasoning (1.00)
- Information Technology > Artificial Intelligence > Machine Learning > Performance Analysis > Accuracy (0.93)
- Information Technology > Artificial Intelligence > Natural Language > Text Processing (0.93)
- Information Technology > Artificial Intelligence > Machine Learning > Neural Networks > Deep Learning (0.68)
Leveraging MLLM Embeddings and Attribute Smoothing for Compositional Zero-Shot Learning
Yan, Xudong, Feng, Songhe, Zhang, Yang, Yang, Jian, Lin, Yueguan, Fei, Haojun
Compositional zero-shot learning (CZSL) aims to recognize novel compositions of attributes and objects learned from seen compositions. Previous works disentangle attribute and object by extracting shared and exclusive parts between image pairs sharing the same attribute (object), as well as aligning them with pretrained word embeddings to improve unseen attribute-object recognition. Despite the significant achievements of existing efforts, they are hampered by three limitations: (1) the efficacy of disentanglement is compromised due to the influence of the background and the intricate entanglement of attribute with object in the same parts. (2) existing word embeddings fail to capture complex multimodal semantic information. (3) overconfidence exhibited by existing models in seen compositions hinders their generalization to novel compositions. Being aware of these, we propose a novel framework named Multimodal Large Language Model (MLLM) embeddings and attribute smoothing guided disentanglement (TRIDENT) for CZSL. First, we leverage feature adaptive aggregation modules to mitigate the impact of background, and utilize learnable condition masks to capture multigranularity features for disentanglement. Then, the last hidden states of MLLM are employed as word embeddings for their superior representation capabilities. Moreover, we propose attribute smoothing with auxiliary attributes generated by Large Language Model (LLM) for seen compositions, addressing the issue of overconfidence by encouraging the model to learn more attributes in one given composition. Extensive experiments demonstrate that TRIDENT achieves state-of-the-art performance on three benchmarks.
Cutsets and EF1 Fair Division of Graphs
Chen, Jiehua, Zwicker, William S.
In fair division of a connected graph $G = (V, E)$, each of $n$ agents receives a share of $G$'s vertex set $V$. These shares partition $V$, with each share required to induce a connected subgraph. Agents use their own valuation functions to determine the non-negative numerical values of the shares, which determine whether the allocation is fair in some specified sense. We introduce forbidden substructures called graph cutsets, which block divisions that are fair in the EF1 (envy-free up to one item) sense by cutting the graph into "too many pieces". Two parameters - gap and valence - determine blocked values of $n$. If $G$ guarantees connected EF1 allocations for $n$ agents with valuations that are CA (common and additive), then $G$ contains no elementary cutset of gap $k \ge 2$ and valence in the interval $\[n - k + 1, n - 1\]$. If $G$ guarantees connected EF1 allocations for $n$ agents with valuations in the broader CM (common and monotone) class, then $G$ contains no cutset of gap $k \ge 2$ and valence in the interval $\[n - k + 1, n - 1\]$. These results rule out the existence of connected EF1 allocations in a variety of situations. For some graphs $G$ we can, with help from some new positive results, pin down $G$'s spectrum - the list of exactly which values of $n$ do/do not guarantee connected EF1 allocations. Examples suggest a conjectured common spectral pattern for all graphs. Further, we show that it is NP-hard to determine whether a graph admits a cutset. We also provide an example of a (non-traceable) graph on eight vertices that has no cutsets of gap $\ge 2$ at all, yet fails to guarantee connected EF1 allocations for three agents with CA preferences.
- Europe > Austria > Vienna (0.14)
- North America > United States > New York > Schenectady County > Schenectady (0.04)
- Europe > United Kingdom > England > Cambridgeshire > Cambridge (0.04)
- (3 more...)
Neutrino Reconstruction in TRIDENT Based on Graph Neural Network
Mo, Cen, Zhang, Fuyudi, Li, Liang
TRopIcal DEep-sea Neutrino Telescope (TRIDENT) is a next-generation neutrino telescope to be located in the South China Sea. With a large detector volume and the use of advanced hybrid digital optical modules (hDOMs), TRIDENT aims to discover multiple astrophysical neutrino sources and probe all-flavor neutrino physics. The reconstruction resolution of primary neutrinos is on the critical path to these scientific goals. We have developed a novel reconstruction method based on graph neural network (GNN) for TRIDENT. In this paper, we present the reconstruction performance of the GNN-based approach on both track- and shower-like neutrino events in TRIDENT.
- Pacific Ocean > North Pacific Ocean > South China Sea (0.25)
- Asia > China > Shanghai > Shanghai (0.05)
TriDeNT: Triple Deep Network Training for Privileged Knowledge Distillation in Histopathology
Farndale, Lucas, Insall, Robert, Yuan, Ke
Computational pathology models rarely utilise data that will not be available for inference. This means most models cannot learn from highly informative data such as additional immunohistochemical (IHC) stains and spatial transcriptomics. We present TriDeNT, a novel self-supervised method for utilising privileged data that is not available during inference to improve performance. We demonstrate the efficacy of this method for a range of different paired data including immunohistochemistry, spatial transcriptomics and expert nuclei annotations. In all settings, TriDeNT outperforms other state-of-the-art methods in downstream tasks, with observed improvements of up to 101%. Furthermore, we provide qualitative and quantitative measurements of the features learned by these models and how they differ from baselines. TriDeNT offers a novel method to distil knowledge from scarce or costly data during training, to create significantly better models for routine inputs.
- Asia > Singapore (0.05)
- Europe > Netherlands > South Holland > Leiden (0.04)
- North America > United States > Colorado (0.04)
- (3 more...)
- Health & Medicine > Therapeutic Area > Neurology (1.00)
- Health & Medicine > Pharmaceuticals & Biotechnology (1.00)
- Health & Medicine > Diagnostic Medicine > Imaging (0.93)
- (2 more...)
Nat Geo and OpenROV are giving away 1000 robot submarines
Despite having lived in close proximity to it for hundreds of thousands of years, humanity has yet to explore even a fraction of the Earth's ocean. We have more thoroughly mapped the surfaces of moon and Mars than we have the seafloor. National Geographic and OpenROV hope to change that next year with the Science Exploration Education (SEE) initiative. The organizations are teaming up to give away 1,000 remotely operated underwater drones to any research organization or citizen scientist who wants one (and, obviously, asks while there are still some in stock). "One of the limiting factors for understanding the ocean is the risks, costs, and accessibility issues of experiencing these underwater ecosystems," David Lang, co-founder of OpenROV, said in a statement.
- North America > United States > Michigan (0.06)
- North America > United States > Illinois > Cook County > Chicago (0.06)
- North America > United States > California (0.06)
- Africa > Madagascar (0.06)
Affordable drones are the new wave of underwater exploration
Underwater exploration has never been a cheap endeavor. Aside from a submarine or an underwater rover, your options for unlocking the secrets of the deep are rather limited. Two companies are working to change that by creating compact, affordable underwater robots. The first is O-Robotix, the maker of Seadrone, which takes concepts from aerial drones and modifies them for use under water. The 10.5-by-12 inch Seadrone is compact enough to carry in your hand and has a gimbal-mounted HD camera that streams live video directly to a tablet. You can control the drone via the tablet interface or a joystick.
'Trident is old technology': the brave new world of cyber warfare
The naval base at La Spezia in northern Italy is in an advanced state of decay. The grand Mussolini-era barracks are shuttered; the weeds won their battle with the concrete some time ago. But amid the crumbling masonry, there is an incongruously neat little building, shaded behind a line of flags, with smartly outfitted security men behind its glass doors. This is Nato's Centre for Maritime Research and Experimentation (CMRE). As one battleship after another has been removed from what remains of the Italian navy, and the base is wound down, the centre is preparing for a new kind of marine warfare amid the wreckage of the old. In a line of workshops along the quay, technicians tinker at the innards of the next generation of naval weapons. They may look like large bright yellow torpedoes, but they are in fact underwater drones, capable of being remote controlled on the surface and taking autonomous actions in the deep.
- Europe > Italy (0.54)
- Europe > United Kingdom (0.28)
- Asia > Russia (0.15)
- (9 more...)
- Government > Military > Cyberwarfare (1.00)
- Government > Military > Navy (0.66)
- Information Technology > Security & Privacy (1.00)
- Information Technology > Artificial Intelligence > Robots (0.95)