As part of a project to harvest semi-structured data from web tables, we describe an approach to extract an abstract representation of the column-header categories based on a context-free grammar for linear strings. The column-header structure is generally an XY-tessellation. The grammar provides a compact representation of infinitely many structural variations possible within column headers. B...

Multimedia applications have different Quality of Service (QoS) requirements. In a multi-hop network, the throughput is essentially important for real-time applications due to their high bit rate requirement. In the wireless networks, error comes from fading, noise, or interference. Link layer error control will have impact on the end-toend throughput. In this paper we propose a two stage error...

Int J Network Mgmt 2016; 1–15 Summary Various traffic identification methods have been proposed with the focus on application‐level traffic analysis. Header signature–based identification using the 3‐tuple (Internet Protocol address, port number, and L4 protocol) within a packet header has garnered a lot of attention because it overcomes the limitations faced by the payload‐based method, such a...

A novel optical header extraction scheme based on optical differential phase shift keying—DPSK—decoding is examined analytically and experimentally. The header is applied in front of the payload, on the phase of a pulsed optical level introduced for the duration of the header. The proposed scheme offers maximized header extraction efficiency, required by the electronics to identify the header b...

bstract. An encoded video bitstream is composed of two main omponents: the coefficient bits representing the discrete cosine ransform coefficients, and the header bits representing the header nformation (e.g., motion vectors, prediction modes, etc.). Compared ith previous video standards, the H.264 Advanced Video Coding AVC) standard has some unique features: (1) the header bits take p a consid...

In this paper we introduce an cooperative header compression scheme for 4G wireless networks. The main focus is to achieve robustness and low complexity for the compression. Furthermore the header compression scheme should work without any feedback information.

This document specifies a RObust Header Compression (ROHC) profile for compression of TCP/IP packets. The profile, called ROHC-TCP, provides efficient and robust compression of TCP headers, including frequently used TCP options such as selective acknowledgments (SACKs) and Timestamps. ROHC-TCP works well when used over links with significant error rates and long round-trip times. For many bandw...

C compilers in production environments often have to reprocess the same header les. CCC is a caching C compiler which maintains a database of partially processed header les so that repetitive work may be eliminated.

This document defines a ROHC (Robust Header Compression) profile for compression of IP/UDP/RTP (Internet Protocol/User Datagram Protocol/Real-Time Transport Protocol) packets, utilizing functionality provided by the lower layers to increase compression efficiency by completely eliminating the header for most packets during optimal operation. The profile is built as an extension to the ROHC RTP ...

ρ-domain rate control has been shown to be a simple yet effective rate control approach for DCT-based hybrid video codecs. When it is applied to H.264/AVC, improvements need to be made because of the large amount of header information and the QP-dependent Rate Distortion Optimization (RDO). In this paper, we propose a novel rate model to estimate the size of header information accurately. We pr...