Measuring timely high-resolution socioeconomic outcomes is critical for policymaking and evaluation, but hard to reliably obtain. With the help of machine learning and cheaply available data such a…
Since the initial proposal in 1999 by Noda et al. , photonic crystal surface emitting lasers (PCSELs) have shown to achieve large area, coherent lasing with a narrow, single mode beam. Owing to the…
Temporal multiplexed fiber Bragg grating (FBG) sensing system for detecting physical parameters with a high spatial resolution is desirable for applications such as structure health monitoring, oil…
Imbalanced data distribution in crowd counting datasets leads to severe under-estimation and over-estimation problems, which has been less investigated in existing works. In this paper, we tackle t…
A dynamic photonic instantaneous microwave frequency measurement approach is reported based on frequency-to-time mapping and filtering using an integrated ring resonator, a local oscillator for het…
The photosensitive behaviors in laser grating formation is an important guideline for the preparation of drawing tower gratings (DTGs) in different optical fibers. We conducted static single-pulse …
We present a simple, fully-convolutional model for real-time ( >30 fps) instance segmentation that achieves competitive results on MS COCO evaluated on a single Titan Xp, which is significantly fas…
We experimentally demonstrated a 10-channel 50-GHz-grid wavelength division multiplexing (WDM) signal transmission over 400-km standard single-mode fiber (SSMF) with the net bit rate of 614.4 Gbps/…
Lenovo Research teamed with members of the factory operations group at Lenovo’s largest laptop manufacturing facility, LCFC, to replace a manual production scheduling system with a decision-makin…
How to dynamically measure the local-to-global spatio-temporal coherence between demand and supply networks is a fundamental task for ride-sourcing platforms, such as DiDi. Such coherence measureme…