Consumer Electronics March 2012

Film Photography Is Dead: Long Live Film

The Glasses are Half Empty

Method of Assessing Product Reliability


What If Digital Cameras Didn’t Need (Local) Storage? Directing photos to the cloud

Super Hi-Vision on the Horizon


Cloud Computing and Consumer Electronics: A Perfect Match or a Hidden Storm?


NGBT: Next-Generation Broadcast Television


Seamless, Synchronous,and Supportive:Welcome to Hybridcast


Selling the Smart Grid—Part 1


Open-Source and Consumer Electronics—The Back Door to World Domination

IT professional march 2012

Understanding Open Source Software at NASA

Contribution to IT: a view from Ames research center

The impact of high computing on NASA missions

Swarm technology at NASA: building resilient systems

NASA contributions to IT

Farewell to the space shuttle

Coping strategies for turbulent times: a survey of IT executives

Measuring application software energy efficiency

Femtocells in JSAC

IEEE JSAC April 2012: "FEMTOCELLS: PAST, PRESENT, AND FUTURE"

Femtocells: Past, Present, and Future


Superanalysis of Optimum Combining with Application to Femtocell Networks


Autonomous Component Carrier Selection for 4G Femtocells – A Fresh Look at an Old Problem


Price-Based Resource Allocation for Spectrum-Sharing Femtocell Networks: A Stackelberg Game Approach


Modeling and Analysis of K-Tier Downlink Heterogeneous Cellular Networks


Throughput Optimization, Spectrum Allocation, and Access Control in Two-Tier Femtocell Networks



Distribution of Downlink SINR in Heterogeneous Cellular Networks


LTE Femtocells: System Design and Performance Analysis

The Economic Effects of Sharing Femtocells


Opportunistic Cooperation in Cognitive Femtocell Networks


Spectrum Leasing as an Incentive Towards Uplink Macrocell and Femtocell Cooperation


Belief Propagation Methods for Intercell Interference Coordination in Femtocell Networks


On Medium Grain Scalable Video Streaming over Femtocell Cognitive Radio Networks


Femtocell Base Station Deployment in Commercial Buildings: A Global Optimization Approach


Optimal Control of Wake Up Mechanisms of Femtocells in Heterogeneous Networks

Correlating Financial Time Series with Micro-Blogging Activity

"Correlating Financial Time Series with Micro-Blogging Activity"


We study the problem of correlating micro-blogging activity with stock-market events, defined as changes in the price and traded volume of stocks. Specifically, we collect messages related to a number of companies, and we search for correlations between stock-market events for those companies and features extracted from the micro blogging messages. The features we extract can be categorized in two groups. Features in the first group measure the overall activity in the micro-blogging platform, such as number of posts, number of re-posts, and so on. Features in the second group measure properties of an induced interaction graph, for instance, the number of connected components, statistics on the degree distribution, and other graph-based properties.
We present detailed experimental results measuring the correlation of the stock market events with these features, using Twitter as a data source. Our results show that the most correlated features are the number of connected components and the number of nodes of the interaction graph. The correlation is stronger with the traded volume than with the price of the stock. However, by using a simulator we show that even relatively small correlations between price and micro-blogging features can be exploited to drive a stock trading strategy that outperforms other baseline strategies.

get the paper here.

IEEE Network March 2012

IEEE Network March 2012's topic on optical networks.

Next-Generation Optical Access Networks: Dynamic Bandwidth Allocation, Resource Use Optimization, and QoS Improvements


Network Operator Requirements for the Next Generation of Optical Access Networks


NG-PONs 1&2 and Beyond: The Dawn of the Über-FiWi Network


Next Generation Optical-Wireless Converged Network Architectures


Energy Efficiency in the Extended-Reach Fiber-Wireless Access Networks


Energy-Efficient PON with Sleep-Mode ONU: Progress, Challenges, and Solutions


Adaptable Access System: Pursuit of Ideal Future Access System Architecture


Medium Access Control for the Next-Generation Passive Optical Networks: The OLIMAC Approach

satin 2011

Securing and Trusting Internet Names, SATIN 2011

get the papers here.

Optimizing for video storage networking

"Optimizing for Video Storage Networking With Recommender Systems"


Driven mainly by its adoption as a new media distribution platform for content providers and its ubiquitous availability for the end user’s media production and consumption, the Internet is rapidly reshaping. In particular, the stakeholders in the content distribution market are considering exploiting content delivery networks (CDNs) to play a key enabling role allowing them  to become part of related value chains. In this paper we discuss how such CDNs rely on autonomous algorithms to optimally use the storage resources, i.e., reducing bandwidth on feeder links, while providing quality of experience (QoE) to the end user.

get the paper here.