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9,200
Conversational Recommendation System with Unsupervised Learning
cs.CL
We will demonstrate a conversational products recommendation agent. This system shows how we combine research in personalized recommendation systems with research in dialogue systems to build a virtual sales agent. Based on new deep learning technologies we developed, the virtual agent is capable of learning how to int...
computer science
9,201
A General Framework for Content-enhanced Network Representation Learning
cs.SI
This paper investigates the problem of network embedding, which aims at learning low-dimensional vector representation of nodes in networks. Most existing network embedding methods rely solely on the network structure, i.e., the linkage relationships between nodes, but ignore the rich content information associated wit...
computer science
9,202
Supervised Term Weighting Metrics for Sentiment Analysis in Short Text
cs.CL
Term weighting metrics assign weights to terms in order to discriminate the important terms from the less crucial ones. Due to this characteristic, these metrics have attracted growing attention in text classification and recently in sentiment analysis. Using the weights given by such metrics could lead to more accurat...
computer science
9,203
Mapping Between fMRI Responses to Movies and their Natural Language Annotations
cs.CL
Several research groups have shown how to correlate fMRI responses to the meanings of presented stimuli. This paper presents new methods for doing so when only a natural language annotation is available as the description of the stimulus. We study fMRI data gathered from subjects watching an episode of BBCs Sherlock [1...
computer science
9,204
MusicMood: Predicting the mood of music from song lyrics using machine learning
cs.LG
Sentiment prediction of contemporary music can have a wide-range of applications in modern society, for instance, selecting music for public institutions such as hospitals or restaurants to potentially improve the emotional well-being of personnel, patients, and customers, respectively. In this project, music recommend...
computer science
9,205
Using Artificial Intelligence to Identify State Secrets
cs.CY
Whether officials can be trusted to protect national security information has become a matter of great public controversy, reigniting a long-standing debate about the scope and nature of official secrecy. The declassification of millions of electronic records has made it possible to analyze these issues with greater ri...
computer science
9,206
The Deep Journey from Content to Collaborative Filtering
cs.IR
In Recommender Systems research, algorithms are often characterized as either Collaborative Filtering (CF) or Content Based (CB). CF algorithms are trained using a dataset of user explicit or implicit preferences while CB algorithms are typically based on item profiles. These approaches harness very different data sour...
computer science
9,207
Generalized Topic Modeling
cs.LG
Recently there has been significant activity in developing algorithms with provable guarantees for topic modeling. In standard topic models, a topic (such as sports, business, or politics) is viewed as a probability distribution $\vec a_i$ over words, and a document is generated by first selecting a mixture $\vec w$ ov...
computer science
9,208
Robust end-to-end deep audiovisual speech recognition
cs.CL
Speech is one of the most effective ways of communication among humans. Even though audio is the most common way of transmitting speech, very important information can be found in other modalities, such as vision. Vision is particularly useful when the acoustic signal is corrupted. Multi-modal speech recognition howeve...
computer science
9,209
Less is More: Learning Prominent and Diverse Topics for Data Summarization
cs.LG
Statistical topic models efficiently facilitate the exploration of large-scale data sets. Many models have been developed and broadly used to summarize the semantic structure in news, science, social media, and digital humanities. However, a common and practical objective in data exploration tasks is not to enumerate a...
computer science
9,210
Prior matters: simple and general methods for evaluating and improving topic quality in topic modeling
cs.CL
Latent Dirichlet Allocation (LDA) models trained without stopword removal often produce topics with high posterior probabilities on uninformative words, obscuring the underlying corpus content. Even when canonical stopwords are manually removed, uninformative words common in that corpus will still dominate the most pro...
computer science
9,211
Leveraging Large Amounts of Weakly Supervised Data for Multi-Language Sentiment Classification
cs.CL
This paper presents a novel approach for multi-lingual sentiment classification in short texts. This is a challenging task as the amount of training data in languages other than English is very limited. Previously proposed multi-lingual approaches typically require to establish a correspondence to English for which pow...
computer science
9,212
Empirical Evaluation of Parallel Training Algorithms on Acoustic Modeling
cs.CL
Deep learning models (DLMs) are state-of-the-art techniques in speech recognition. However, training good DLMs can be time consuming especially for production-size models and corpora. Although several parallel training algorithms have been proposed to improve training efficiency, there is no clear guidance on which one...
computer science
9,213
Gate Activation Signal Analysis for Gated Recurrent Neural Networks and Its Correlation with Phoneme Boundaries
cs.SD
In this paper we analyze the gate activation signals inside the gated recurrent neural networks, and find the temporal structure of such signals is highly correlated with the phoneme boundaries. This correlation is further verified by a set of experiments for phoneme segmentation, in which better results compared to st...
computer science
9,214
Tacotron: Towards End-to-End Speech Synthesis
cs.CL
A text-to-speech synthesis system typically consists of multiple stages, such as a text analysis frontend, an acoustic model and an audio synthesis module. Building these components often requires extensive domain expertise and may contain brittle design choices. In this paper, we present Tacotron, an end-to-end genera...
computer science
9,215
TransNets: Learning to Transform for Recommendation
cs.IR
Recently, deep learning methods have been shown to improve the performance of recommender systems over traditional methods, especially when review text is available. For example, a recent model, DeepCoNN, uses neural nets to learn one latent representation for the text of all reviews written by a target user, and a sec...
computer science
9,216
Voice Conversion Using Sequence-to-Sequence Learning of Context Posterior Probabilities
cs.SD
Voice conversion (VC) using sequence-to-sequence learning of context posterior probabilities is proposed. Conventional VC using shared context posterior probabilities predicts target speech parameters from the context posterior probabilities estimated from the source speech parameters. Although conventional VC can be b...
computer science
9,217
Leveraging Term Banks for Answering Complex Questions: A Case for Sparse Vectors
cs.IR
While open-domain question answering (QA) systems have proven effective for answering simple questions, they struggle with more complex questions. Our goal is to answer more complex questions reliably, without incurring a significant cost in knowledge resource construction to support the QA. One readily available knowl...
computer science
9,218
A Neural Parametric Singing Synthesizer
cs.SD
We present a new model for singing synthesis based on a modified version of the WaveNet architecture. Instead of modeling raw waveform, we model features produced by a parametric vocoder that separates the influence of pitch and timbre. This allows conveniently modifying pitch to match any target melody, facilitates tr...
computer science
9,219
Sparse Communication for Distributed Gradient Descent
cs.CL
We make distributed stochastic gradient descent faster by exchanging sparse updates instead of dense updates. Gradient updates are positively skewed as most updates are near zero, so we map the 99% smallest updates (by absolute value) to zero then exchange sparse matrices. This method can be combined with quantization ...
computer science
9,220
Joint Modeling of Text and Acoustic-Prosodic Cues for Neural Parsing
cs.CL
In conversational speech, the acoustic signal provides cues that help listeners disambiguate difficult parses. For automatically parsing a spoken utterance, we introduce a model that integrates transcribed text and acoustic-prosodic features using a convolutional neural network over energy and pitch trajectories couple...
computer science
9,221
Neural Ranking Models with Weak Supervision
cs.IR
Despite the impressive improvements achieved by unsupervised deep neural networks in computer vision and NLP tasks, such improvements have not yet been observed in ranking for information retrieval. The reason may be the complexity of the ranking problem, as it is not obvious how to learn from queries and documents whe...
computer science
9,222
On Using Active Learning and Self-Training when Mining Performance Discussions on Stack Overflow
cs.CL
Abundant data is the key to successful machine learning. However, supervised learning requires annotated data that are often hard to obtain. In a classification task with limited resources, Active Learning (AL) promises to guide annotators to examples that bring the most value for a classifier. AL can be successfully c...
computer science
9,223
Deep Speaker Feature Learning for Text-independent Speaker Verification
cs.SD
Recently deep neural networks (DNNs) have been used to learn speaker features. However, the quality of the learned features is not sufficiently good, so a complex back-end model, either neural or probabilistic, has to be used to address the residual uncertainty when applied to speaker verification, just as with raw fea...
computer science
9,224
Social Media-based Substance Use Prediction
cs.CL
In this paper, we demonstrate how the state-of-the-art machine learning and text mining techniques can be used to build effective social media-based substance use detection systems. Since a substance use ground truth is difficult to obtain on a large scale, to maximize system performance, we explore different feature l...
computer science
9,225
Deep Learning for Environmentally Robust Speech Recognition: An Overview of Recent Developments
cs.SD
Eliminating the negative effect of non-stationary environmental noise is a long-standing research topic for automatic speech recognition but still remains an important challenge. Data-driven supervised approaches, especially the ones based on deep neural networks, have recently emerged as potential alternatives to trad...
computer science
9,226
Task-specific Word Identification from Short Texts Using a Convolutional Neural Network
cs.CL
Task-specific word identification aims to choose the task-related words that best describe a short text. Existing approaches require well-defined seed words or lexical dictionaries (e.g., WordNet), which are often unavailable for many applications such as social discrimination detection and fake review detection. Howev...
computer science
9,227
Joint Text Embedding for Personalized Content-based Recommendation
cs.IR
Learning a good representation of text is key to many recommendation applications. Examples include news recommendation where texts to be recommended are constantly published everyday. However, most existing recommendation techniques, such as matrix factorization based methods, mainly rely on interaction histories to l...
computer science
9,228
Deep learning for extracting protein-protein interactions from biomedical literature
cs.CL
State-of-the-art methods for protein-protein interaction (PPI) extraction are primarily feature-based or kernel-based by leveraging lexical and syntactic information. But how to incorporate such knowledge in the recent deep learning methods remains an open question. In this paper, we propose a multichannel dependency-b...
computer science
9,229
Characterizing Types of Convolution in Deep Convolutional Recurrent Neural Networks for Robust Speech Emotion Recognition
cs.LG
Deep convolutional neural networks are being actively investigated in a wide range of speech and audio processing applications including speech recognition, audio event detection and computational paralinguistics, owing to their ability to reduce factors of variations, for learning from speech. However, studies have su...
computer science
9,230
Encoding of phonology in a recurrent neural model of grounded speech
cs.CL
We study the representation and encoding of phonemes in a recurrent neural network model of grounded speech. We use a model which processes images and their spoken descriptions, and projects the visual and auditory representations into the same semantic space. We perform a number of analyses on how information about in...
computer science
9,231
Jointly Learning Word Embeddings and Latent Topics
cs.CL
Word embedding models such as Skip-gram learn a vector-space representation for each word, based on the local word collocation patterns that are observed in a text corpus. Latent topic models, on the other hand, take a more global view, looking at the word distributions across the corpus to assign a topic to each word ...
computer science
9,232
Semi-supervised Text Categorization Using Recursive K-means Clustering
cs.LG
In this paper, we present a semi-supervised learning algorithm for classification of text documents. A method of labeling unlabeled text documents is presented. The presented method is based on the principle of divide and conquer strategy. It uses recursive K-means algorithm for partitioning both labeled and unlabeled ...
computer science
9,233
Automated Audio Captioning with Recurrent Neural Networks
cs.SD
We present the first approach to automated audio captioning. We employ an encoder-decoder scheme with an alignment model in between. The input to the encoder is a sequence of log mel-band energies calculated from an audio file, while the output is a sequence of words, i.e. a caption. The encoder is a multi-layered, bi-...
computer science
9,234
Like trainer, like bot? Inheritance of bias in algorithmic content moderation
cs.CY
The internet has become a central medium through which `networked publics' express their opinions and engage in debate. Offensive comments and personal attacks can inhibit participation in these spaces. Automated content moderation aims to overcome this problem using machine learning classifiers trained on large corpor...
computer science
9,235
Multitask Learning for Fine-Grained Twitter Sentiment Analysis
cs.IR
Traditional sentiment analysis approaches tackle problems like ternary (3-category) and fine-grained (5-category) classification by learning the tasks separately. We argue that such classification tasks are correlated and we propose a multitask approach based on a recurrent neural network that benefits by jointly learn...
computer science
9,236
Quasar: Datasets for Question Answering by Search and Reading
cs.CL
We present two new large-scale datasets aimed at evaluating systems designed to comprehend a natural language query and extract its answer from a large corpus of text. The Quasar-S dataset consists of 37000 cloze-style (fill-in-the-gap) queries constructed from definitions of software entity tags on the popular website...
computer science
9,237
Listening while Speaking: Speech Chain by Deep Learning
cs.CL
Despite the close relationship between speech perception and production, research in automatic speech recognition (ASR) and text-to-speech synthesis (TTS) has progressed more or less independently without exerting much mutual influence on each other. In human communication, on the other hand, a closed-loop speech chain...
computer science
9,238
Single-Channel Multi-talker Speech Recognition with Permutation Invariant Training
cs.SD
Although great progresses have been made in automatic speech recognition (ASR), significant performance degradation is still observed when recognizing multi-talker mixed speech. In this paper, we propose and evaluate several architectures to address this problem under the assumption that only a single channel of mixed ...
computer science
9,239
VoiceLoop: Voice Fitting and Synthesis via a Phonological Loop
cs.LG
We present a new neural text to speech (TTS) method that is able to transform text to speech in voices that are sampled in the wild. Unlike other systems, our solution is able to deal with unconstrained voice samples and without requiring aligned phonemes or linguistic features. The network architecture is simpler than...
computer science
9,240
Stock Prediction: a method based on extraction of news features and recurrent neural networks
cs.CL
This paper proposed a method for stock prediction. In terms of feature extraction, we extract the features of stock-related news besides stock prices. We first select some seed words based on experience which are the symbols of good news and bad news. Then we propose an optimization method and calculate the positive po...
computer science
9,241
End-to-End Neural Segmental Models for Speech Recognition
cs.CL
Segmental models are an alternative to frame-based models for sequence prediction, where hypothesized path weights are based on entire segment scores rather than a single frame at a time. Neural segmental models are segmental models that use neural network-based weight functions. Neural segmental models have achieved c...
computer science
9,242
Leveraging Sparse and Dense Feature Combinations for Sentiment Classification
cs.CL
Neural networks are one of the most popular approaches for many natural language processing tasks such as sentiment analysis. They often outperform traditional machine learning models and achieve the state-of-art results on most tasks. However, many existing deep learning models are complex, difficult to train and prov...
computer science
9,243
Extractive Summarization using Deep Learning
cs.CL
This paper proposes a text summarization approach for factual reports using a deep learning model. This approach consists of three phases: feature extraction, feature enhancement, and summary generation, which work together to assimilate core information and generate a coherent, understandable summary. We are exploring...
computer science
9,244
Unsupervised Terminological Ontology Learning based on Hierarchical Topic Modeling
cs.CL
In this paper, we present hierarchical relationbased latent Dirichlet allocation (hrLDA), a data-driven hierarchical topic model for extracting terminological ontologies from a large number of heterogeneous documents. In contrast to traditional topic models, hrLDA relies on noun phrases instead of unigrams, considers s...
computer science
9,245
MIT-QCRI Arabic Dialect Identification System for the 2017 Multi-Genre Broadcast Challenge
cs.CL
In order to successfully annotate the Arabic speech con- tent found in open-domain media broadcasts, it is essential to be able to process a diverse set of Arabic dialects. For the 2017 Multi-Genre Broadcast challenge (MGB-3) there were two possible tasks: Arabic speech recognition, and Arabic Dialect Identification (A...
computer science
9,246
Understanding the Logical and Semantic Structure of Large Documents
cs.CL
Current language understanding approaches focus on small documents, such as newswire articles, blog posts, product reviews and discussion forum entries. Understanding and extracting information from large documents like legal briefs, proposals, technical manuals and research articles is still a challenging task. We des...
computer science
9,247
Information Theoretic Analysis of DNN-HMM Acoustic Modeling
cs.SD
We propose an information theoretic framework for quantitative assessment of acoustic modeling for hidden Markov model (HMM) based automatic speech recognition (ASR). Acoustic modeling yields the probabilities of HMM sub-word states for a short temporal window of speech acoustic features. We cast ASR as a communication...
computer science
9,248
Sequence Prediction with Neural Segmental Models
cs.CL
Segments that span contiguous parts of inputs, such as phonemes in speech, named entities in sentences, actions in videos, occur frequently in sequence prediction problems. Segmental models, a class of models that explicitly hypothesizes segments, have allowed the exploration of rich segment features for sequence predi...
computer science
9,249
Attention-based Wav2Text with Feature Transfer Learning
cs.CL
Conventional automatic speech recognition (ASR) typically performs multi-level pattern recognition tasks that map the acoustic speech waveform into a hierarchy of speech units. But, it is widely known that information loss in the earlier stage can propagate through the later stages. After the resurgence of deep learnin...
computer science
9,250
Topic Modeling based on Keywords and Context
cs.CL
Current topic models often suffer from discovering topics not matching human intuition, unnatural switching of topics within documents and high computational demands. We address these concerns by proposing a topic model and an inference algorithm based on automatically identifying characteristic keywords for topics. Ke...
computer science
9,251
Text2Action: Generative Adversarial Synthesis from Language to Action
cs.LG
In this paper, we propose a generative model which learns the relationship between language and human action in order to generate a human action sequence given a sentence describing human behavior. The proposed generative model is a generative adversarial network (GAN), which is based on the sequence to sequence (SEQ2S...
computer science
9,252
Fishing for Clickbaits in Social Images and Texts with Linguistically-Infused Neural Network Models
cs.LG
This paper presents the results and conclusions of our participation in the Clickbait Challenge 2017 on automatic clickbait detection in social media. We first describe linguistically-infused neural network models and identify informative representations to predict the level of clickbaiting present in Twitter posts. Ou...
computer science
9,253
Deep Triphone Embedding Improves Phoneme Recognition
cs.SD
In this paper, we present a novel Deep Triphone Embedding (DTE) representation derived from Deep Neural Network (DNN) to encapsulate the discriminative information present in the adjoining speech frames. DTEs are generated using a four hidden layer DNN with 3000 nodes in each hidden layer at the first-stage. This DNN i...
computer science
9,254
Sequence-to-Sequence ASR Optimization via Reinforcement Learning
cs.CL
Despite the success of sequence-to-sequence approaches in automatic speech recognition (ASR) systems, the models still suffer from several problems, mainly due to the mismatch between the training and inference conditions. In the sequence-to-sequence architecture, the model is trained to predict the grapheme of the cur...
computer science
9,255
Quality-Efficiency Trade-offs in Machine Learning for Text Processing
cs.IR
Data mining, machine learning, and natural language processing are powerful techniques that can be used together to extract information from large texts. Depending on the task or problem at hand, there are many different approaches that can be used. The methods available are continuously being optimized, but not all th...
computer science
9,256
Joint Sentiment/Topic Modeling on Text Data Using Boosted Restricted Boltzmann Machine
cs.CL
Recently by the development of the Internet and the Web, different types of social media such as web blogs become an immense source of text data. Through the processing of these data, it is possible to discover practical information about different topics, individuals opinions and a thorough understanding of the societ...
computer science
9,257
Efficient Representation for Natural Language Processing via Kernelized Hashcodes
cs.CL
Kernel methods have been used widely in a number of tasks, but have had limited success in Natural Language Processing (NLP) due to high cost of computing kernel similarities between discrete natural language structures. A recently proposed technique, Kernelized Locality Sensitive Hashing (KLSH), can significantly redu...
computer science
9,258
Prior-aware Dual Decomposition: Document-specific Topic Inference for Spectral Topic Models
cs.CL
Spectral topic modeling algorithms operate on matrices/tensors of word co-occurrence statistics to learn topic-specific word distributions. This approach removes the dependence on the original documents and produces substantial gains in efficiency and provable topic inference, but at a cost: the model can no longer pro...
computer science
9,259
Multiple-Instance, Cascaded Classification for Keyword Spotting in Narrow-Band Audio
cs.LG
We propose using cascaded classifiers for a keyword spotting (KWS) task on narrow-band (NB), 8kHz audio acquired in non-IID environments --- a more challenging task than most state-of-the-art KWS systems face. We present a model that incorporates Deep Neural Networks (DNNs), cascading, multiple-feature representations,...
computer science
9,260
Multiple Instance Learning Networks for Fine-Grained Sentiment Analysis
cs.CL
We consider the task of fine-grained sentiment analysis from the perspective of multiple instance learning (MIL). Our neural model is trained on document sentiment labels, and learns to predict the sentiment of text segments, i.e. sentences or elementary discourse units (EDUs), without segment-level supervision. We int...
computer science
9,261
Cavs: A Vertex-centric Programming Interface for Dynamic Neural Networks
cs.LG
Recent deep learning (DL) models have moved beyond static network architectures to dynamic ones, handling data where the network structure changes every example, such as sequences of variable lengths, trees, and graphs. Existing dataflow-based programming models for DL---both static and dynamic declaration---either can...
computer science
9,262
Document Generation with Hierarchical Latent Tree Models
cs.CL
In most probabilistic topic models, a document is viewed as a collection of tokens and each token is a variable whose values are all the words in a vocabulary. One exception is hierarchical latent tree models (HLTMs), where a document is viewed as a binary vector over the vocabulary and each word is regarded as a binar...
computer science
9,263
Generating and Estimating Nonverbal Alphabets for Situated and Multimodal Communications
cs.HC
In this paper, we discuss the formalized approach for generating and estimating symbols (and alphabets), which can be communicated by the wide range of non-verbal means based on specific user requirements (medium, priorities, type of information that needs to be conveyed). The short characterization of basic terms and ...
computer science
9,264
Differentially Private Distributed Learning for Language Modeling Tasks
cs.CL
One of the big challenges in machine learning applications is that training data can be different from the real-world data faced by the algorithm. In language modeling, users' language (e.g. in private messaging) could change in a year and be completely different from what we observe in publicly available data. At the ...
computer science
9,265
Leveraging Native Language Speech for Accent Identification using Deep Siamese Networks
cs.CL
The problem of automatic accent identification is important for several applications like speaker profiling and recognition as well as for improving speech recognition systems. The accented nature of speech can be primarily attributed to the influence of the speaker's native language on the given speech recording. In t...
computer science
9,266
Lifelong Learning for Sentiment Classification
cs.CL
This paper proposes a novel lifelong learning (LL) approach to sentiment classification. LL mimics the human continuous learning process, i.e., retaining the knowledge learned from past tasks and use it to help future learning. In this paper, we first discuss LL in general and then LL for sentiment classification in pa...
computer science
9,267
Black-box Generation of Adversarial Text Sequences to Evade Deep Learning Classifiers
cs.CL
Although various techniques have been proposed to generate adversarial samples for white-box attacks on text, little attention has been paid to a black-box attack, which is a more realistic scenario. In this paper, we present a novel algorithm, DeepWordBug, to effectively generate small text perturbations in a black-bo...
computer science
9,268
DCDistance: A Supervised Text Document Feature extraction based on class labels
cs.IR
Text Mining is a field that aims at extracting information from textual data. One of the challenges of such field of study comes from the pre-processing stage in which a vector (and structured) representation should be extracted from unstructured data. The common extraction creates large and sparse vectors representing...
computer science
9,269
Adversarial Texts with Gradient Methods
cs.CL
Adversarial samples for images have been extensively studied in the literature. Among many of the attacking methods, gradient-based methods are both effective and easy to compute. In this work, we propose a framework to adapt the gradient attacking methods on images to text domain. The main difficulties for generating ...
computer science
9,270
Improving Review Representations with User Attention and Product Attention for Sentiment Classification
cs.CL
Neural network methods have achieved great success in reviews sentiment classification. Recently, some works achieved improvement by incorporating user and product information to generate a review representation. However, in reviews, we observe that some words or sentences show strong user's preference, and some others...
computer science
9,271
Texygen: A Benchmarking Platform for Text Generation Models
cs.CL
We introduce Texygen, a benchmarking platform to support research on open-domain text generation models. Texygen has not only implemented a majority of text generation models, but also covered a set of metrics that evaluate the diversity, the quality and the consistency of the generated texts. The Texygen platform coul...
computer science
9,272
Speech Emotion Recognition with Data Augmentation and Layer-wise Learning Rate Adjustment
cs.SD
In this work, we design a neural network for recognizing emotions in speech, using the standard IEMOCAP dataset. Following the latest advances in audio analysis, we use an architecture involving both convolutional layers, for extracting high-level features from raw spectrograms, and recurrent ones for aggregating long-...
computer science
9,273
Neural Voice Cloning with a Few Samples
cs.CL
Voice cloning is a highly desired feature for personalized speech interfaces. Neural network based speech synthesis has been shown to generate high quality speech for a large number of speakers. In this paper, we introduce a neural voice cloning system that takes a few audio samples as input. We study two approaches: s...
computer science
9,274
Deep factorization for speech signal
eess.AS
Various informative factors mixed in speech signals, leading to great difficulty when decoding any of the factors. An intuitive idea is to factorize each speech frame into individual informative factors, though it turns out to be highly difficult. Recently, we found that speaker traits, which were assumed to be long-te...
computer science
9,275
Cross-domain Recommendation via Deep Domain Adaptation
cs.LG
The behavior of users in certain services could be a clue that can be used to infer their preferences and may be used to make recommendations for other services they have never used. However, the cross-domain relationships between items and user consumption patterns are not simple, especially when there are few or no c...
computer science
9,276
Hierarchical Learning of Cross-Language Mappings through Distributed Vector Representations for Code
cs.LG
Translating a program written in one programming language to another can be useful for software development tasks that need functionality implementations in different languages. Although past studies have considered this problem, they may be either specific to the language grammars, or specific to certain kinds of code...
computer science
9,277
Corpus Statistics in Text Classification of Online Data
cs.CL
Transformation of Machine Learning (ML) from a boutique science to a generally accepted technology has increased importance of reproduction and transportability of ML studies. In the current work, we investigate how corpus characteristics of textual data sets correspond to text classification results. We work with two ...
computer science
9,278
On Design and Implementation of the Distributed Modular Audio Recognition Framework: Requirements and Specification Design Document
cs.CV
We present the requirements and design specification of the open-source Distributed Modular Audio Recognition Framework (DMARF), a distributed extension of MARF. The distributed version aggregates a number of distributed technologies (e.g. Java RMI, CORBA, Web Services) in a pluggable and modular model along with the p...
computer science
9,279
Design Automation for Binarized Neural Networks: A Quantum Leap Opportunity?
cs.OH
Design automation in general, and in particular logic synthesis, can play a key role in enabling the design of application-specific Binarized Neural Networks (BNN). This paper presents the hardware design and synthesis of a purely combinational BNN for ultra-low power near-sensor processing. We leverage the major oppor...
computer science
9,280
Cross-Entropy method: convergence issues for extended implementation
math.OC
The cross-entropy method (CE) developed by R. Rubinstein is an elegant practical principle for simulating rare events. The method approximates the probability of the rare event by means of a family of probabilistic models. The method has been extended to optimization, by considering an optimal event as a rare event. CE...
computer science
9,281
Optoelectronic Reservoir Computing
cs.ET
Reservoir computing is a recently introduced, highly efficient bio-inspired approach for processing time dependent data. The basic scheme of reservoir computing consists of a non linear recurrent dynamical system coupled to a single input layer and a single output layer. Within these constraints many implementations ar...
computer science
9,282
A Cascade Neural Network Architecture investigating Surface Plasmon Polaritons propagation for thin metals in OpenMP
cs.NE
Surface plasmon polaritons (SPPs) confined along metal-dielectric interface have attracted a relevant interest in the area of ultracompact photonic circuits, photovoltaic devices and other applications due to their strong field confinement and enhancement. This paper investigates a novel cascade neural network (NN) arc...
computer science
9,283
Riemannian metrics for neural networks I: feedforward networks
cs.NE
We describe four algorithms for neural network training, each adapted to different scalability constraints. These algorithms are mathematically principled and invariant under a number of transformations in data and network representation, from which performance is thus independent. These algorithms are obtained from th...
computer science
9,284
Statistical mechanics of unsupervised feature learning in a restricted Boltzmann machine with binary synapses
cs.LG
Revealing hidden features in unlabeled data is called unsupervised feature learning, which plays an important role in pretraining a deep neural network. Here we provide a statistical mechanics analysis of the unsupervised learning in a restricted Boltzmann machine with binary synapses. A message passing equation to inf...
computer science
9,285
Hierarchical Models as Marginals of Hierarchical Models
math.PR
We investigate the representation of hierarchical models in terms of marginals of other hierarchical models with smaller interactions. We focus on binary variables and marginals of pairwise interaction models whose hidden variables are conditionally independent given the visible variables. In this case the problem is e...
computer science
9,286
Role of zero synapses in unsupervised feature learning
cs.LG
Synapses in real neural circuits can take discrete values, including zero (silent or potential) synapses. The computational role of zero synapses in unsupervised feature learning of unlabeled noisy data is still unclear, thus it is important to understand how the sparseness of synaptic activity is shaped during learnin...
computer science
9,287
Forecasting day-ahead electricity prices in Europe: the importance of considering market integration
cs.CE
Motivated by the increasing integration among electricity markets, in this paper we propose two different methods to incorporate market integration in electricity price forecasting and to improve the predictive performance. First, we propose a deep neural network that considers features from connected markets to improv...
computer science
9,288
Sample-level CNN Architectures for Music Auto-tagging Using Raw Waveforms
cs.SD
Recent work has shown that the end-to-end approach using convolutional neural network (CNN) is effective in various types of machine learning tasks. For audio signals, the approach takes raw waveforms as input using an 1-D convolution layer. In this paper, we improve the 1-D CNN architecture for music auto-tagging by a...
computer science
9,289
TasNet: time-domain audio separation network for real-time, single-channel speech separation
cs.SD
Robust speech processing in multi-talker environments requires effective speech separation. Recent deep learning systems have made significant progress toward solving this problem, yet it remains challenging particularly in real-time, short latency applications. Most methods attempt to construct a mask for each source ...
computer science
9,290
Deep Learning for Real-time Gravitational Wave Detection and Parameter Estimation: Results with Advanced LIGO Data
cs.LG
The recent Nobel-prize-winning detections of gravitational waves from merging black holes and the subsequent detection of the collision of two neutron stars in coincidence with electromagnetic observations have inaugurated a new era of multimessenger astrophysics. To enhance the scope of this emergent field of science,...
computer science
9,291
Deep Learning for Real-time Gravitational Wave Detection and Parameter Estimation with LIGO Data
cs.LG
The recent Nobel-prize-winning detections of gravitational waves from merging black holes and the subsequent detection of the collision of two neutron stars in coincidence with electromagnetic observations have inaugurated a new era of multimessenger astrophysics. To enhance the scope of this emergent science, we propo...
computer science
9,292
Denoising Gravitational Waves using Deep Learning with Recurrent Denoising Autoencoders
cs.LG
Gravitational wave astronomy is a rapidly growing field of modern astrophysics, with observations being made frequently by the LIGO detectors. Gravitational wave signals are often extremely weak and the data from the detectors, such as LIGO, is contaminated with non-Gaussian and non-stationary noise, often containing t...
computer science
9,293
On the organization of grid and place cells: Neural de-noising via subspace learning
cs.IT
Place cells in the hippocampus are active when an animal visits a certain locations (referred to as place fields) within an environment and remain silent otherwise. Grid cells in the medial entorhinal cortex (MEC) respond at multiple locations, with firing fields that exhibit a hexagonally symmetric periodic pattern. T...
computer science
9,294
Mean Field Residual Networks: On the Edge of Chaos
cs.NE
We study randomly initialized residual networks using mean field theory and the theory of difference equations. Classical feedforward neural networks, such as those with tanh activations, exhibit exponential behavior on the average when propagating inputs forward or gradients backward. The exponential forward dynamics ...
computer science
9,295
Concept Stability for Constructing Taxonomies of Web-site Users
cs.CY
Owners of a web-site are often interested in analysis of groups of users of their site. Information on these groups can help optimizing the structure and contents of the site. In this paper we use an approach based on formal concepts for constructing taxonomies of user groups. For decreasing the huge amount of concepts...
computer science
9,296
Rasch-based high-dimensionality data reduction and class prediction with applications to microarray gene expression data
cs.AI
Class prediction is an important application of microarray gene expression data analysis. The high-dimensionality of microarray data, where number of genes (variables) is very large compared to the number of samples (obser- vations), makes the application of many prediction techniques (e.g., logistic regression, discri...
computer science
9,297
Nonparametric Bayesian sparse factor models with application to gene expression modeling
stat.AP
A nonparametric Bayesian extension of Factor Analysis (FA) is proposed where observed data $\mathbf{Y}$ is modeled as a linear superposition, $\mathbf{G}$, of a potentially infinite number of hidden factors, $\mathbf{X}$. The Indian Buffet Process (IBP) is used as a prior on $\mathbf{G}$ to incorporate sparsity and to ...
computer science
9,298
Instant Replay: Investigating statistical Analysis in Sports
stat.AP
Technology has had an unquestionable impact on the way people watch sports. Along with this technological evolution has come a higher standard to ensure a good viewing experience for the casual sports fan. It can be argued that the pervasion of statistical analysis in sports serves to satiate the fan's desire for detai...
computer science
9,299
Structured Sparsity via Alternating Direction Methods
math.OC
We consider a class of sparse learning problems in high dimensional feature space regularized by a structured sparsity-inducing norm which incorporates prior knowledge of the group structure of the features. Such problems often pose a considerable challenge to optimization algorithms due to the non-smoothness and non-s...
computer science