Search Results for author: Tianji Cong

Found 4 papers, 2 papers with code

Observatory: Characterizing Embeddings of Relational Tables

1 code implementation5 Oct 2023 Tianji Cong, Madelon Hulsebos, Zhenjie Sun, Paul Groth, H. V. Jagadish

Based on these properties, we define an extensible framework to evaluate language and table embedding models.

Pylon: Semantic Table Union Search in Data Lakes

1 code implementation12 Jan 2023 Tianji Cong, Fatemeh Nargesian, H. V. Jagadish

The large size and fast growth of data repositories, such as data lakes, has spurred the need for data discovery to help analysts find related data.

Contrastive Learning Representation Learning +1

Sneakoscope: Revisiting Unsupervised Out-of-Distribution Detection

no code implementations29 Sep 2021 Tianji Cong, Atul Prakash

The problem of detecting out-of-distribution (OOD) examples in neural networks has been widely studied in the literature, with state-of-the-art techniques being supervised in that they require fine-tuning on OOD data to achieve high-quality OOD detection.

Out-of-Distribution Detection Out of Distribution (OOD) Detection

Can Attention Masks Improve Adversarial Robustness?

no code implementations27 Nov 2019 Pratik Vaishnavi, Tianji Cong, Kevin Eykholt, Atul Prakash, Amir Rahmati

Focusing on the observation that discrete pixelization in MNIST makes the background completely black and foreground completely white, we hypothesize that the important property for increasing robustness is the elimination of image background using attention masks before classifying an object.

Adversarial Robustness

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