Nikhil Anand
· Daniel Braun Silvers, W’98, WG’99, and Robert Peter Silvers, C’02, Family Presidential Professor of AnthropologyVerifiedUniversity of Pennsylvania · Anthropology
Active 2002–2026
About
Nikhil Anand's research focuses on the political ecology of cities, explored through the different lives of water. His first book, Hydraulic City (Duke University Press 2017), examines the everyday ways in which cities and citizens are made through the management of water infrastructure in Mumbai. This work highlights how the politics of Mumbai's water infrastructure demonstrate the emergence of citizenship through continuous efforts to control, maintain, and manage the city's water, emphasizing the critical role infrastructures play in consolidating civic and social belonging. Anand's new research project, The Urban Sea, investigates how coastal cities are actively constituted through social and natural relationships with the sea, aiming to discover new paradigms for inhabiting coastal cities in the context of climate change. His broader work addresses the tensions between the promises of infrastructure—modernity and development—and their breakdowns, which reveal underlying issues of progress, equality, and economic growth. Through collaborative and interdisciplinary projects, Anand explores how urban processes, especially in coastal and river cities like Mumbai and Philadelphia, intersect with histories of vulnerability, inequality, and environmental change, seeking to imagine cities that thrive amid climate-changed waters by integrating social justice and non-human natures.
Research topics
- Computer Science
- Political Science
- Geography
- Sociology
- Engineering
- Law
- Epistemology
- Mathematics
- Statistics
- History
- Medicine
- Operations research
- Environmental health
- Philosophy
- Archaeology
- Virology
- Econometrics
Selected publications
ContextFocus: Activation Steering for Contextual Faithfulness in Large Language Models
ArXiv.org · 2026-01-07
articleOpen access1st authorCorrespondingLarge Language Models (LLMs) encode vast amounts of parametric knowledge during pre-training. As world knowledge evolves, effective deployment increasingly depends on their ability to faithfully follow externally retrieved context. When such evidence conflicts with the model's internal knowledge, LLMs often default to memorized facts, producing unfaithful outputs. In this work, we introduce ContextFocus, a lightweight activation steering approach that improves context faithfulness in such knowledge-conflict settings while preserving fluency and efficiency. Unlike prior approaches, our solution requires no model finetuning and incurs minimal inference-time overhead, making it highly efficient. We evaluate ContextFocus on the ConFiQA benchmark, comparing it against strong baselines including ContextDPO, COIECD, and prompting-based methods. Furthermore, we show that our method is complementary to prompting strategies and remains effective on larger models. Extensive experiments show that ContextFocus significantly improves contextual-faithfulness. Our results highlight the effectiveness, robustness, and efficiency of ContextFocus in improving contextual-faithfulness of LLM outputs.
ContextFocus: Activation Steering for Contextual Faithfulness in Large Language Models
arXiv (Cornell University) · 2026-01-07
preprintOpen access1st authorCorrespondingLarge Language Models (LLMs) encode vast amounts of parametric knowledge during pre-training. As world knowledge evolves, effective deployment increasingly depends on their ability to faithfully follow externally retrieved context. When such evidence conflicts with the model's internal knowledge, LLMs often default to memorized facts, producing unfaithful outputs. In this work, we introduce ContextFocus, a lightweight activation steering approach that improves context faithfulness in such knowledge-conflict settings while preserving fluency and efficiency. Unlike prior approaches, our solution requires no model finetuning and incurs minimal inference-time overhead, making it highly efficient. We evaluate ContextFocus on the ConFiQA benchmark, comparing it against strong baselines including ContextDPO, COIECD, and prompting-based methods. Furthermore, we show that our method is complementary to prompting strategies and remains effective on larger models. Extensive experiments show that ContextFocus significantly improves contextual-faithfulness. Our results highlight the effectiveness, robustness, and efficiency of ContextFocus in improving contextual-faithfulness of LLM outputs.
Evolutionary Optimization Based Augmentation of Lunar Powered Descent Guidance Law
2025-01-01
article1st authorCorrespondingAfter Coasts: Cartography, Desiccation, and Dwelling in Amphibious Worlds
Annual Review of Anthropology · 2025-07-17 · 1 citations
articleOpen access1st authorCorrespondingAs cities and nation-states design massive coastal development projects, I show in this review how these projects require and produce emptied and flattened surfaces necessary for the workings of coloniality, racial capitalism, and enslavement, dispossessing amphibious modes of life and livelihood in their wake. Nevertheless, despite their accreted force (and also perhaps because of it), colonial and postcolonial projects to stabilize and concretize coasts are always falling apart. Their disrepair manifests how projects, and the lives and landscapes they make, continue to be situated in amphibious worlds. Building on the work of scholars in anthropology, geography, science and technology studies, and Black studies, I first draw attention to the spatial and temporal rhythms in which social groups dwell in amphibious terrain. Second, thinking with Kamu Brathwaite's formulation of tidalectics and Tiffany Lethabo King's formulation of shoals, I show how concepts of an amphibious anthropology lend themselves to reading the compromised yet consequent forces with which sedimented and sodden social and natural histories matter. Finally, I return to Peters & Steinberg's provocation of more-than-wet ontologies to unpack how an amphibious anthropology might register and theorize the permeability of the body and, in so doing, address the long-standing separations between environmental science and the health sciences.
The AAG Review of Books · 2024-04-02
articleOpen accessOil Spill Classification: A Machine Learning Approach
2024-07-10 · 1 citations
article1st authorCorrespondingOceans can be visually documented by satellite photos to show the size and effects of oil spills on the water's surface. Determining whether an oil spill is present in a particular maritime patch is the primary goal of this research. The best-fitting classifier for detecting oil spills in a given ocean patch has been determined by applying popular Machine Learning (ML) classifiers and boosting techniques, such as K-Nearest Neighbor (KNN), Cat-Boost (CB), Random Forest (RF), Decision Tree classifier, Support Vector Machine (SVM), Extreme Gradient Boosting (XGB), Logistic Regression (LR), and Gaussian Naive Bayes (GNB) in this work. In this classification, Cat-boost had the highest accuracy score of 0.984 and the highest precision of 0.989. K-Nearest Neighbor (KNN) came next with an accuracy score of 0.9681. Receiver Operating Characteristic (ROC) curves were also generated using Random Forest, giving an AUC of 0.9784.
Comparative Studies of South Asia Africa and the Middle East · 2024-05-01 · 2 citations
article1st authorCorrespondingAbstract Contemporary infrastructure projects in the sea reterritorialize port environments, continuously discarding historic occupants and coastal occupations in their wake. In this article the authors dwell on the ongoing histories through which fish and fishers are eviscerated in Mumbai's seas via the proliferation of massive infrastructural operations currently being staged by the Indian state. In so doing, they make two arguments. First, they show how infrastructures at sea are accretive forms that are simultaneously articulated at different time scales. New infrastructures currently being built in the sea in postcolonial India only intensify the expropriations of colonial projects that were staged in the sea. Second, urban fishers work not only at sea but also on the dry land of the city. As chances for making livelihoods at sea are steadily foreclosed, fishers are increasingly turning to their small parcels of land in the city, exploring how and if these might be made real estate to secure their futures.
Hydrological Drought Forecasting Using Nonlinear ANN
Lecture notes in civil engineering · 2024-01-01
book-chapterSenior author<scp>SOUTH ASIAN URBAN CLIMATES</scp>: Towards Pluralistic Narratives and Expanded Lexicons
International Journal of Urban and Regional Research · 2023-04-20 · 3 citations
articleOpen accessSenior authorAbstract This Interventions essay presents 14 stories of, and positions on, urban climates in South Asia. We look analytically and linguistically from this region to engage the terms ‘mahaul’, ‘mausam’ and ‘aab‐o‐hawa’ as critical concepts to conceptualize climate in its political, social, historic, atmospheric, ecological, material, sensory and embodied registers. Gathered together, the stories scaffold a perspective on climate that connects concerns about broader structural conditions (mahaul); local and lived experiences in different temporal registers (mausam) and sociomaterial entanglements that demand new ways of knowing nature (aab‐o‐hawa). An expansive yet grounded conceptualization allows us to narrate individual cases and local climate stories in their multiplicity and difference, rather than through cumulative effects across much wider geographies. This essay on South Asian urban climates provides an analytical frame based on shared colonial history, and geographies connecting experiences of climate across fraught geopolitical borders. These diverse South Asian urbanisms provide evidence of a range of environmental vulnerabilities, while seeking possibilities in already existing climates—in the seas and airs that reorient the experience of land and atmosphere, in centering marginalized voices, in historical remnants to read contemporary urban change, in exploring planning agency grounded in local politics, and from the position of partial knowledge that being within urban climates entails.
Duke University Press eBooks · 2023
- Geography
- History
Recent grants
Infrastructure, Planning, and Uncertainty on Urban Coastlines
NSF · $237k · 2019–2024
Frequent coauthors
- 30 shared
Hannah Appel
University of California, Los Angeles
- 27 shared
Rania Kassab Sweis
- 27 shared
Elif M. Babül
Mount Holyoke College
- 27 shared
Robert Samet
- 26 shared
Austin Zeiderman
- 25 shared
Kedron Thomas
University of Delaware
- 25 shared
Rodrigo Andrés
Rockefeller University
- 25 shared
Aaron Shaw
Harvard University
Awards & honors
- Junior Scholar Prize by the Anthropology and Environment Soc…
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