Transmission Control Protocol (TCP) has shown serious performance limitations on wireless media. The main causes of these limitations have their root in mobility and link characteristics of wireless media. Heterogeneous environment of multiple radio-access technologies generally increases handover frequency, causing adverse impact on TCP flow and congestion control operations. In this paper, we...

The paper presents a study on automatic sentence boundary detection in social media texts such as Facebook messages and Twitter micro-blogs (tweets). We explore the limitations of using existing rule-based sentence boundary detection systems on social media text, and as an alternative investigate applying three machine learning algorithms (Conditional Random Fields, Naïve Bayes, and Sequential ...

Information retrieval on the (social) web moves from a pure term-frequency-based approach to an enhanced method that includes conceptual multimodal features on a semantic level. In this paper, we present an approach for semantic-based keyword search and focus especially on its optimization to scale it to real-world sized collections in the social media domain. Furthermore, we present a faceted ...

Rate adaptive multimedia streams are streaming media connections where the encoding rate is adjusted dynamically (with corresponding changes in media content resolution) in response to changing levels of congestion along the connection. The field of optimization based congestion control has yielded sophisticated distributed algorithms for resource allocation among competing elastic streams. In ...

Alkaliphilic cyanobacterial cultures were isolated from Lonar lake (MS, India). Among the set of cultures, Synechocystis sp, was studied for phycocyanin production. A maximum yield was obtained in BG-11 medium at optimized conditions (pH 10 and 16 h light). In order to increase the phycocyanin yield media optimization based on the eight media components a Plackett-Burman design of the 12 experi...

The general objective of our work is the optimization of the long-wavelength acoustic properties of real sound proofing foam samples. In this purpose, our general methodology is to use the method of periodic unit cell (PUC) reconstruction of porous media which consists of two main steps. In the first one, the critical local geometry features governing long-wavelengths acoustic wave propagation ...

We have developed the first systematic approach for the design of localized algorithms in wireless embedded ad-hoc sensor networks. The approach has three modular phases: information gathering, system structuring, and optimization mechanisms. The phases can be organized in a number of ways, depending on the underlying operating system and media access control mechanisms. As a driver example for...