SegViTv2: Exploring Efficient and Continual Semantic Segmentation with Plain Vision Transformers

This paper investigates the capability of plain Vision Transformers (ViTs) for semantic segmentation using the encoder-decoder framework and introduces \textbf{SegViTv2}. In this study, we introduce a novel Attention-to-Mask (\atm) module to design a lightweight decoder effective for plain ViT. The proposed ATM converts the global attention map into semantic masks for high-quality segmentation results. Our decoder outperforms the popular decoder UPerNet using various ViT backbones while consuming only about $5\%$ of the computational cost. For the encoder, we address the concern of the relatively high computational cost in the ViT-based encoders and propose a \emph{Shrunk++} structure that incorporates edge-aware query-based down-sampling (EQD) and query-based upsampling (QU) modules. The Shrunk++ structure reduces the computational cost of the encoder by up to $50\%$ while maintaining competitive performance. Furthermore, we propose to adapt SegViT for continual semantic segmentation, demonstrating nearly zero forgetting of previously learned knowledge. Experiments show that our proposed SegViTv2 surpasses recent segmentation methods on three popular benchmarks including ADE20k, COCO-Stuff-10k and PASCAL-Context datasets. The code is available through the following link: \url{https://github.com/zbwxp/SegVit}.Comment: IJCV 2023 accepted, 21 pages, 8 figures, 12 table

Annual report of the town and school officers of the town of Newfields, New Hampshire for the financial year ending January 31, 1926 and vital statistics for the year ending December 31, 1925.

This is an annual report containing vital statistics for a town/city in the state of New Hampshire

An economic analysis of cucumber (Cucumis sativus L.) cultivation in eastern zone of Haryana (India) under polyhouse and open field condition

The study was conducted in north zone of Haryana (India) state to find out the economic analysis of cucumber cultivation under polyhouse and open field condition. The primary data was collected by personal interview of the selected respondents with the help of well-designed and pre tested schedule. Simple statistical tools like average and percentage were used to calculate the economics of the crop. In the present study, it was found that the cost of cultivation of cucumber per acre under polyhouse was Rs. 283684.40 while in case of open field condition it was Rs. 98003.39. In case of production and net returns, it was higher per acre in polyhouse; 245.47 quintal and Rs. 97138.68, respectively. Present study concluded that yield and income of farmers can be increased with help of polyhouse technology in case of cucumber cultivation

Total Factor Productivity in Horticultural Crops in Konkan Region of Maharashtra

Agricultural and Food Policy,

Annual report of the town and school officers of the town of Newfields, New Hampshire for the financial year ending January 31, 1926 and vital statistics for the year ending December 31, 1925.

This is an annual report containing vital statistics for a town/city in the state of New Hampshire

Small-Scale Structure of O VI Interstellar Gas in the Direction of the Globular Cluster NGC 6752

In order to study the small-scale structure of the hot interstellar gas, we obtained Far Ultraviolet Spectroscopic Explorer interstellar O VI interstellar absorption spectra of 4 four post-extreme horizontal branch stars in the globular cluster NGC 6752 [(l,b) = (336.50,-25.63), d = 3.9 kpc, z= -1.7 kpc]. The good quality spectra of these stars allow us to measure both lines of the O VI doublet at 1031.926 \AA and 1037.617 \AA. The close proximity of these stars permits us to probe the hot interstellar gas over angular scale of only 2\farcm2 - 8\farcm9, corresponding to spatial scales \la 2.5-10.1 pc. On these scales we detect no variations in the O VI column density and velocity distribution. The average column density is log = 14.34 \pm 0.02 (log = 13.98). The measured velocity dispersions of the O VI absorption are also indistinguishable. Including the earlier results of Howk et al., this study suggests that interstellar O VI is smooth on scales \Delta \theta \la 12\arcmin, corresponding to a spatial scale of less than 10 pc, and quite patchy at larger scales. Although such small scales are only probed in a few directions, this suggests a characteristic size scale for the regions producing collisionally-ionized O VI in the Galaxy.Comment: Accepted for publication in the PASP (to appear in the October 2004 issue

Annual reports of the selectmen, treasurer, and highway agents of the town of Hopkinton, together with the report of the school board, for the year ending February 15, 1894.

This is an annual report containing vital statistics for a town/city in the state of New Hampshire