Results 1 - 10 of 1,665

Propagation of Trust and Distrust

by R. Guha, Ravi Kumar, Prabhakar Raghavan, Andrew Tomkins , 2004
"... A network of people connected by directed ratings or trust scores, and a model for propagating those trust scores, is a fundamental building block in many of today's most successful e-commerce and recommendation systems. In eBay, such a model of trust has significant influence on the price an i ..."
Abstract - Cited by 439 (1 self) - Add to MetaCart
, and evaluate the schemes on a large trust network consisting of 800K trust scores expressed among 130K people. We show that a small number of expressed trusts/distrust per individual allows us to predict reliably trust between any two people in the system with high accuracy: a quadratic increase in actionable

Reflective and impulsive determinants of social behavior

by Fritz Strack - Personality and Social Psychology Review , 2004
"... This article describes a 2-systems model that explains social behavior as a joint function of reflective and impulsive processes. In particular, it is assumed that social behavior is controlled by 2 interacting systems that follow different operating principles. The reflective system generates behav ..."
Abstract - Cited by 365 (5 self) - Add to MetaCart
in a synergistic or antagonistic fashion. It extends previous models by integrating motivational components that allow more precise predictions of behavior. The implications of this reflective–impulsive model are applied to various phenomena from social psychology and beyond. Extending previous dual

Predicting positive and negative links in online social networks,”

by Jure Leskovec , Daniel Huttenlocher , Jon Kleinberg - in Proceedings of the 19th International World Wide Web Conference (WWW ’10), , 2010
"... ABSTRACT We study online social networks in which relationships can be either positive (indicating relations such as friendship) or negative (indicating relations such as opposition or antagonism). Such a mix of positive and negative links arise in a variety of online settings; we study datasets fr ..."
Abstract - Cited by 233 (7 self) - Add to MetaCart
from Epinions, Slashdot and Wikipedia. We find that the signs of links in the underlying social networks can be predicted with high accuracy, using models that generalize across this diverse range of sites. These models provide insight into some of the fundamental principles that drive the formation

Pipeline gating: speculation control for energy reduction

by Srilatha Manne - In Proceedings of the 25th Annual International Symposium on Computer Architecture , 1998
"... Branch prediction has enabled microprocessors to increase instruction level parallelism (ILP) by allowing programs to speculatively execute beyond control boundaries. Although speculative execution is essential for increasing the instructions per cycle (IPC), it does come at a cost. A large amount o ..."
Abstract - Cited by 288 (3 self) - Add to MetaCart
Branch prediction has enabled microprocessors to increase instruction level parallelism (ILP) by allowing programs to speculatively execute beyond control boundaries. Although speculative execution is essential for increasing the instructions per cycle (IPC), it does come at a cost. A large amount

Link prediction in relational data

by Ben Taskar, Ming-fai Wong, Pieter Abbeel, Daphne Koller - in Neural Information Processing Systems , 2003
"... Many real-world domains are relational in nature, consisting of a set of objects related to each other in complex ways. This paper focuses on predicting the existence and the type of links between entities in such domains. We apply the relational Markov network framework of Taskar et al. to define a ..."
Abstract - Cited by 156 (1 self) - Add to MetaCart
, and the other a social network. We show that the collective classification approach of RMNs, and the introduction of subgraph patterns over link labels, provide significant improvements in accuracy over flat classification, which attempts to predict each link in isolation. 1

Effective Capacity: A Wireless Link Model for Support of Quality of Service

by Dapeng Wu, Rohit Negi
"... To facilitate the efficient support of quality of service (QoS) in next-generation wireless networks, it is essential to model a wireless channel in terms of connection-level QoS metrics such as data rate, delay and delay-violation probability. However, the existing wireless channel models, i.e., ph ..."
Abstract - Cited by 197 (17 self) - Add to MetaCart
. The key advantages of the EC link-layer modeling and estimation are (1) ease of translation into QoS guarantees, such as delay bounds, (2) simplicity of implementation, (3) accuracy, and hence, efficiency in admission control and resource reservation. We illustrate the advantage of our approach with a set

Dependence Based Prefetching for Linked Data Structures

by Amir Roth, Andreas Moshovos, Gurindar S. Soh , 1998
"... We introduce a dynamic scheme that captures the access patterns of linked data structures and can be used to predict future accesses with high accuracy. Our technique exploits the dependence relationships that exist between loads that produce addresses and loads that consume these addresses. By iden ..."
Abstract - Cited by 179 (13 self) - Add to MetaCart
We introduce a dynamic scheme that captures the access patterns of linked data structures and can be used to predict future accesses with high accuracy. Our technique exploits the dependence relationships that exist between loads that produce addresses and loads that consume these addresses

Beyond Predictive Accuracy: What?

by Christophe Giraud-Carrier - Technical University of Chemnitz , 1998
"... This paper presents a number of such criteria and discusses the impact they have on meta-level approaches to model selection. 1 Introduction ..."
Abstract - Cited by 11 (2 self) - Add to MetaCart
This paper presents a number of such criteria and discusses the impact they have on meta-level approaches to model selection. 1 Introduction

Topic modeling: beyond bag-of-words

by Hanna M. Wallach - NIPS 2005 Workshop on Bayesian Methods for Natural Language Processing , 2005
"... Some models of textual corpora employ text generation methods involving n-gram statistics, while others use latent topic variables inferred using the “bag-of-words ” assumption, in which word order is ignored. Previously, these methods have not been combined. In this work, I explore a hierarchical g ..."
Abstract - Cited by 154 (4 self) - Add to MetaCart
documents, the new model exhibits better predictive accuracy than either a hierarchical Dirichlet bigram language model or a unigram topic model. Additionally, the inferred topics are less dominated by function words than are topics discovered using unigram statistics, potentially making them more

Psychology and neurobiology of simple decisions

by Philip L Smith , Roger Ratcliff - Trends Neurosci , 2004
"... Patterns of neural firing linked to eye movement decisions show that behavioral decisions are predicted by the differential firing rates of cells coding selected and nonselected stimulus alternatives. These results can be interpreted using models developed in mathematical psychology to model behavi ..."
Abstract - Cited by 213 (7 self) - Add to MetaCart
Patterns of neural firing linked to eye movement decisions show that behavioral decisions are predicted by the differential firing rates of cells coding selected and nonselected stimulus alternatives. These results can be interpreted using models developed in mathematical psychology to model
Results 1 - 10 of 1,665